Decimal Konstruktoren

Definition

Initialisiert eine neue Instanz von Decimal.

Überlädt

Decimal(Double)

Initialisiert eine neue Instanz von Decimal mit dem Wert der angegebenen Gleitkommazahl mit doppelter Genauigkeit.

Decimal(Int32)

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 32-Bit-Ganzzahl mit Vorzeichen.

Decimal(Int32[])

Initialisiert eine neue Instanz von Decimal mit einem binär dargestellten Decimal-Wert in einem angegebenen Array.

Decimal(Int64)

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 64-Bit-Ganzzahl mit Vorzeichen.

Decimal(ReadOnlySpan<Int32>)

Initialisiert eine neue Instanz eines Decimal dezimalen Werts, der in binär dargestellt wird und in der angegebenen Spanne enthalten ist.

Decimal(Single)

Initialisiert eine neue Instanz von Decimal mit dem Wert der angegebenen Gleitkommazahl mit einfacher Genauigkeit.

Decimal(UInt32)

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 32-Bit-Ganzzahl ohne Vorzeichen.

Decimal(UInt64)

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 64-Bit-Ganzzahl ohne Vorzeichen.

Decimal(Int32, Int32, Int32, Boolean, Byte)

Initialisiert einen neue Instanz von Decimal mit Parametern, die die Bestandteile der Instanz angeben.

Decimal(Double)

Initialisiert eine neue Instanz von Decimal mit dem Wert der angegebenen Gleitkommazahl mit doppelter Genauigkeit.

public:
 Decimal(double value);
public Decimal (double value);
new decimal : double -> decimal
Public Sub New (value As Double)

Parameter

value
Double

Der als Decimal darzustellende Wert.

Ausnahmen

value ist größer als MaxValue oder kleiner als MinValue.

- oder -

value ist NaN, PositiveInfinity oder NegativeInfinity.

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Decimal Struktur mit einem Double Wert initialisiert.

// Example of the Decimal( double ) constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( double value, String^ valToStr )
{
   
   // Format and display the constructor.
   Console::Write( "{0,-34}", String::Format( "Decimal( {0} )", valToStr ) );
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(value);
      
      // Display the value if it was created successfully.
      Console::WriteLine( "{0,31}", decimalNum );
   }
   catch ( Exception^ ex ) 
   {
      
      // Display the exception type if an exception was thrown.
      Console::WriteLine( "{0,31}", GetExceptionType( ex ) );
   }

}

int main()
{
   Console::WriteLine( "This example of the Decimal( double ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-34}{1,31}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-34}{1,31}", "-----------", "------------------" );
   
   // Construct Decimal objects from double values.
   CreateDecimal( 1.23456789E+5, "1.23456789E+5" );
   CreateDecimal( 1.234567890123E+15, "1.234567890123E+15" );
   CreateDecimal( 1.2345678901234567E+25, "1.2345678901234567E+25" );
   CreateDecimal( 1.2345678901234567E+35, "1.2345678901234567E+35" );
   CreateDecimal( 1.23456789E-5, "1.23456789E-5" );
   CreateDecimal( 1.234567890123E-15, "1.234567890123E-15" );
   CreateDecimal( 1.2345678901234567E-25, "1.2345678901234567E-25" );
   CreateDecimal( 1.2345678901234567E-35, "1.2345678901234567E-35" );
   CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" );
}

/*
This example of the Decimal( double ) constructor
generates the following output.

Constructor                                    Value or Exception
-----------                                    ------------------
Decimal( 1.23456789E+5 )                               123456.789
Decimal( 1.234567890123E+15 )                    1234567890123000
Decimal( 1.2345678901234567E+25 )      12345678901234600000000000
Decimal( 1.2345678901234567E+35 )               OverflowException
Decimal( 1.23456789E-5 )                          0.0000123456789
Decimal( 1.234567890123E-15 )       0.000000000000001234567890123
Decimal( 1.2345678901234567E-25 )  0.0000000000000000000000001235
Decimal( 1.2345678901234567E-35 )                               0
Decimal( 1.0 / 7.0 )                            0.142857142857143
*/
// Example of the decimal( double ) constructor.
using System;

class DecimalCtorDoDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring(
            exceptionType.LastIndexOf( '.' )+1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( double value, string valToStr )
    {
        // Format and display the constructor.
        Console.Write( "{0,-34}",
            String.Format( "decimal( {0} )", valToStr ) );

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal( value );

            // Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum );
        }
        catch( Exception ex )
        {
            // Display the exception type if an exception was thrown.
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) );
        }
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( double ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-34}{1,31}", "Constructor",
            "Value or Exception" );
        Console.WriteLine( "{0,-34}{1,31}", "-----------",
            "------------------" );

        // Construct decimal objects from double values.
        CreateDecimal( 1.23456789E+5, "1.23456789E+5" );
        CreateDecimal( 1.234567890123E+15, "1.234567890123E+15" );
        CreateDecimal( 1.2345678901234567E+25,
            "1.2345678901234567E+25" );
        CreateDecimal( 1.2345678901234567E+35,
            "1.2345678901234567E+35" );
        CreateDecimal( 1.23456789E-5, "1.23456789E-5" );
        CreateDecimal( 1.234567890123E-15, "1.234567890123E-15" );
        CreateDecimal( 1.2345678901234567E-25,
            "1.2345678901234567E-25" );
        CreateDecimal( 1.2345678901234567E-35,
            "1.2345678901234567E-35" );
        CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" );
    }
}

/*
This example of the decimal( double ) constructor
generates the following output.

Constructor                                    Value or Exception
-----------                                    ------------------
decimal( 1.23456789E+5 )                               123456.789
decimal( 1.234567890123E+15 )                    1234567890123000
decimal( 1.2345678901234567E+25 )      12345678901234600000000000
decimal( 1.2345678901234567E+35 )               OverflowException
decimal( 1.23456789E-5 )                          0.0000123456789
decimal( 1.234567890123E-15 )       0.000000000000001234567890123
decimal( 1.2345678901234567E-25 )  0.0000000000000000000000001235
decimal( 1.2345678901234567E-35 )                               0
decimal( 1.0 / 7.0 )                            0.142857142857143
*/
// Example of the decimal( double ) constructor.
open System

// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
    let exceptionType = ex.GetType() |> string
    exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)

// Create a decimal object and display its value.
let createDecimal (value: double) valToStr =
    // Format and display the constructor.
    printf "%-34s" $"decimal( {valToStr} )"

    try
        // Construct the decimal value.
        let decimalNum = Decimal value

        // Display the value if it was created successfully.
        printfn $"{decimalNum,31}"
    with ex ->
        // Display the exception type if an exception was thrown.
        printfn $"{getExceptionType ex,31}"

printfn $"This example of the decimal( double ) constructor \ngenerates the following output.\n"
printfn "%-34s%31s" "Constructor" "Value or Exception"
printfn "%-34s%31s" "-----------" "------------------"

// Construct decimal objects from double values.
createDecimal 1.23456789E+5 "1.23456789E+5"
createDecimal 1.234567890123E+15 "1.234567890123E+15"
createDecimal 1.2345678901234567E+25 "1.2345678901234567E+25"
createDecimal 1.2345678901234567E+35 "1.2345678901234567E+35"
createDecimal 1.23456789E-5 "1.23456789E-5"
createDecimal 1.234567890123E-15 "1.234567890123E-15"
createDecimal 1.2345678901234567E-25 "1.2345678901234567E-25"
createDecimal 1.2345678901234567E-35 "1.2345678901234567E-35"
createDecimal (1. / 7.) "1. / 7."


// This example of the decimal( double ) constructor
// generates the following output.
//
// Constructor                                    Value or Exception     
// -----------                                    ------------------     
// decimal( 1.23456789E+5 )                               123456.789     
// decimal( 1.234567890123E+15 )                    1234567890123000     
// decimal( 1.2345678901234567E+25 )      12345678901234600000000000     
// decimal( 1.2345678901234567E+35 )               OverflowException     
// decimal( 1.23456789E-5 )                          0.0000123456789     
// decimal( 1.234567890123E-15 )       0.000000000000001234567890123     
// decimal( 1.2345678901234567E-25 )  0.0000000000000000000000001235     
// decimal( 1.2345678901234567E-35 )                               0
' Example of the Decimal( Double ) constructor.
Module DecimalCtorDoDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Double, valToStr As String )

        ' Format and display the constructor.
        Console.Write( "{0,-34}", _
            String.Format( "Decimal( {0} )", valToStr ) )

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( value )

            ' Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum )

        ' Display the exception type if an exception was thrown.
        Catch ex As Exception
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) )
        End Try
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Double ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-34}{1,31}", "Constructor", _
            "Value or Exception" )
        Console.WriteLine( "{0,-34}{1,31}", "-----------", _
            "------------------" )

        ' Construct Decimal objects from Double values.
        CreateDecimal( 1.23456789E+5, "1.23456789E+5" )                
        CreateDecimal( 1.234567890123E+15, "1.234567890123E+15" )                
        CreateDecimal( 1.2345678901234567E+25, _
            "1.2345678901234567E+25" )
        CreateDecimal( 1.2345678901234567E+35, _
            "1.2345678901234567E+35" )
        CreateDecimal( 1.23456789E-5, "1.23456789E-5" )                
        CreateDecimal( 1.234567890123E-15, "1.234567890123E-15" )      
        CreateDecimal( 1.2345678901234567E-25, _
            "1.2345678901234567E-25" ) 
        CreateDecimal( 1.2345678901234567E-35, _
            "1.2345678901234567E-35" ) 
        CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" ) 
    End Sub 
End Module 

' This example of the Decimal( Double ) constructor
' generates the following output.
' 
' Constructor                                    Value or Exception
' -----------                                    ------------------
' Decimal( 1.23456789E+5 )                               123456.789
' Decimal( 1.234567890123E+15 )                    1234567890123000
' Decimal( 1.2345678901234567E+25 )      12345678901234600000000000
' Decimal( 1.2345678901234567E+35 )               OverflowException
' Decimal( 1.23456789E-5 )                          0.0000123456789
' Decimal( 1.234567890123E-15 )       0.000000000000001234567890123
' Decimal( 1.2345678901234567E-25 )  0.0000000000000000000000001235
' Decimal( 1.2345678901234567E-35 )                               0
' Decimal( 1.0 / 7.0 )                            0.142857142857143

Hinweise

Dieser Konstruktor rundet value auf 15 signifikante Ziffern mit Rundung auf nächste. Dies geschieht auch dann, wenn die Zahl mehr als 15 Ziffern aufweist und die weniger signifikanten Ziffern null sind.

Gilt für:

Decimal(Int32)

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 32-Bit-Ganzzahl mit Vorzeichen.

public:
 Decimal(int value);
public Decimal (int value);
new decimal : int -> decimal
Public Sub New (value As Integer)

Parameter

value
Int32

Der als Decimal darzustellende Wert.

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Struktur mit einem Decimal Int32 Wert initialisiert.

// Example of the Decimal( int ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( int value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-30}{1,16}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( int ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-30}{1,16}", "Constructor", "Value" );
   Console::WriteLine( "{0,-30}{1,16}", "-----------", "-----" );
   
   // Construct Decimal objects from int values.
   CreateDecimal( Int32::MinValue, "Int32::MinValue" );
   CreateDecimal( Int32::MaxValue, "Int32::MaxValue" );
   CreateDecimal( 0, "0" );
   CreateDecimal( 999999999, "999999999" );
   CreateDecimal( 0x40000000, "0x40000000" );
   CreateDecimal( (int)0xC0000000, "(int)0xC0000000" );
}

/*
This example of the Decimal( int ) constructor
generates the following output.

Constructor                              Value
-----------                              -----
Decimal( Int32::MinValue )         -2147483648
Decimal( Int32::MaxValue )          2147483647
Decimal( 0 )                                 0
Decimal( 999999999 )                 999999999
Decimal( 0x40000000 )               1073741824
Decimal( (int)0xC0000000 )         -1073741824
*/
// Example of the decimal( int ) constructor.
using System;

class DecimalCtorIDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( int value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-30}{1,16}", ctor, decimalNum );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( int ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-30}{1,16}", "Constructor", "Value" );
        Console.WriteLine( "{0,-30}{1,16}", "-----------", "-----" );

        // Construct decimal objects from int values.
        CreateDecimal( int.MinValue, "int.MinValue" );
        CreateDecimal( int.MaxValue, "int.MaxValue" );
        CreateDecimal( 0, "0" );
        CreateDecimal( 999999999, "999999999" );
        CreateDecimal( 0x40000000, "0x40000000" );
        CreateDecimal( unchecked( (int)0xC0000000 ),
            "(int)0xC0000000" );
    }
}

/*
This example of the decimal( int ) constructor
generates the following output.

Constructor                              Value
-----------                              -----
decimal( int.MinValue )            -2147483648
decimal( int.MaxValue )             2147483647
decimal( 0 )                                 0
decimal( 999999999 )                 999999999
decimal( 0x40000000 )               1073741824
decimal( (int)0xC0000000 )         -1073741824
*/
// Example of the decimal(int) constructor.
open System

// Create a decimal object and display its value.
let createDecimal (value: int) valToStr =
    let decimalNum = new decimal(value)

    // Format the constructor for display.
    let ctor = $"decimal( {valToStr} )"

    // Display the constructor and its value.
    printfn $"{ctor,-30}{decimalNum,16}"

printfn "This example of the decimal(int) constructor\ngenerates the following output.\n"
printfn "%-30s%16s" "Constructor" "Value"
printfn "%-30s%16s" "-----------" "-----"

// Construct decimal objects from int values.
createDecimal Int32.MinValue "Int32.MinValue"
createDecimal Int32.MaxValue "int.MaxValue"
createDecimal 0 "0"
createDecimal 999999999 "999999999"
createDecimal 0x40000000 "0x40000000"
createDecimal (int 0xC0000000) "int 0xC0000000"


// This example of the decimal(int) constructor
// generates the following output.

// Constructor                              Value
// -----------                              -----
// decimal( Int32.MinValue )          -2147483648
// decimal( Int32.MaxValue )           2147483647
// decimal( 0 )                                 0
// decimal( 999999999 )                 999999999
// decimal( 0x40000000 )               1073741824
// decimal( int 0xC0000000 )          -1073741824
' Example of the Decimal( Integer ) constructor.
Module DecimalCtorIDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Integer, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,16}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Integer ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-33}{1,16}", "Constructor", "Value" )
        Console.WriteLine( "{0,-33}{1,16}", "-----------", "-----" )

        ' Construct Decimal objects from Integer values.
        CreateDecimal( Integer.MinValue, "Integer.MinValue" )                
        CreateDecimal( Integer.MaxValue, "Integer.MaxValue" )                
        CreateDecimal( 0, "0" )                
        CreateDecimal( 999999999, "999999999" )                
        CreateDecimal( &H40000000, "&H40000000" )                
        CreateDecimal( &HC0000000, "&HC0000000" )                
    End Sub 
End Module 

' This example of the Decimal( Integer ) constructor
' generates the following output.
' 
' Constructor                                 Value
' -----------                                 -----
' Decimal( Integer.MinValue )           -2147483648
' Decimal( Integer.MaxValue )            2147483647
' Decimal( 0 )                                    0
' Decimal( 999999999 )                    999999999
' Decimal( &H40000000 )                  1073741824
' Decimal( &HC0000000 )                 -1073741824

Gilt für:

Decimal(Int32[])

Initialisiert eine neue Instanz von Decimal mit einem binär dargestellten Decimal-Wert in einem angegebenen Array.

public:
 Decimal(cli::array <int> ^ bits);
public Decimal (int[] bits);
new decimal : int[] -> decimal
Public Sub New (bits As Integer())

Parameter

bits
Int32[]

Eine Array von 32-Bit-Ganzzahlen mit Vorzeichen, das eine Darstellung eines Decimal-Werts enthält.

Ausnahmen

bits ist null.

Die Länge von bits ist nicht 4.

- oder -

Die Darstellung des Decimal-Werts als bits ist ungültig.

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Decimal Struktur mit einem Array von vier Int32 Werten initialisiert.

// Example of the Decimal( int __gc [ ] ) constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( array<int>^bits )
{
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {{ 0x{0:X}", bits[ 0 ] );
   String^ valOrExc;
   for ( int index = 1; index < bits->Length; index++ )
      ctor = String::Concat( ctor, String::Format( ", 0x{0:X}", bits[ index ] ) );
   ctor = String::Concat( ctor, " } )" );
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(bits);
      
      // Format the Decimal value for display.
      valOrExc = decimalNum.ToString();
   }
   catch ( Exception^ ex ) 
   {
      
      // Save the exception type if an exception was thrown.
      valOrExc = GetExceptionType( ex );
   }

   
   // Display the constructor and Decimal value or exception.
   int ctorLen = 76 - valOrExc->Length;
   
   // Display the data on one line if it will fit.
   if ( ctorLen > ctor->Length )
      Console::WriteLine( "{0}{1}", ctor->PadRight( ctorLen ), valOrExc );
   // Otherwise, display the data on two lines.
   else
   {
      Console::WriteLine( "{0}", ctor );
      Console::WriteLine( "{0,76}", valOrExc );
   }
}

int main()
{
   Console::WriteLine( "This example of the Decimal( int __gc [ ] ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-38}{1,38}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-38}{1,38}", "-----------", "------------------" );
   
   // Construct Decimal objects from integer arrays.
   array<Int32>^zero = {0,0,0,0};
   CreateDecimal( zero );
   array<Int32>^arrayShort = {0,0,0};
   CreateDecimal( arrayShort );
   array<Int32>^arrayLong = {0,0,0,0,0};
   CreateDecimal( arrayLong );
   array<Int32>^word0Data = {1000000000,0,0,0};
   CreateDecimal( word0Data );
   array<Int32>^word1Data = {0,1000000000,0,0};
   CreateDecimal( word1Data );
   array<Int32>^word2Data = {0,0,1000000000,0};
   CreateDecimal( word2Data );
   array<Int32>^word3Data = {0,0,0,1000000000};
   CreateDecimal( word3Data );
   array<Int32>^decMax = { -1,-1,-1,0};
   CreateDecimal( decMax );
   array<Int32>^decMin = { -1,-1,-1,0x80000000};
   CreateDecimal( decMin );
   array<Int32>^fracDig16 = { -1,0,0,0x100000};
   CreateDecimal( fracDig16 );
   array<Int32>^fracDig28 = { -1,0,0,0x1C0000};
   CreateDecimal( fracDig28 );
   array<Int32>^fracDig29 = { -1,0,0,0x1D0000};
   CreateDecimal( fracDig29 );
   array<Int32>^reserved = { -1,0,0,0x1C0001};
   CreateDecimal( reserved );
   array<Int32>^Same4Words = {0xF0000,0xF0000,0xF0000,0xF0000};
   CreateDecimal( Same4Words );
}

/*
This example of the Decimal( int __gc [ ] ) constructor
generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
Decimal( { 0x0, 0x0, 0x0, 0x0 } )                                          0
Decimal( { 0x0, 0x0, 0x0 } )                               ArgumentException
Decimal( { 0x0, 0x0, 0x0, 0x0, 0x0 } )                     ArgumentException
Decimal( { 0x3B9ACA00, 0x0, 0x0, 0x0 } )                          1000000000
Decimal( { 0x0, 0x3B9ACA00, 0x0, 0x0 } )                 4294967296000000000
Decimal( { 0x0, 0x0, 0x3B9ACA00, 0x0 } )       18446744073709551616000000000
Decimal( { 0x0, 0x0, 0x0, 0x3B9ACA00 } )                   ArgumentException
Decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x0 } )
                                               79228162514264337593543950335
Decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000 } )
                                              -79228162514264337593543950335
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x100000 } )             0.0000004294967295
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0000 } ) 0.0000000000000000004294967295
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1D0000 } )              ArgumentException
Decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0001 } )              ArgumentException
Decimal( { 0xF0000, 0xF0000, 0xF0000, 0xF0000 } )
                                                 18133887298.441562272235520
*/
// Example of the decimal( int[ ] ) constructor.
using System;

class DecimalCtorIArrDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring(
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( int[ ] bits )
    {
        // Format the constructor for display.
        string ctor = String.Format(
            "decimal( {{ 0x{0:X}", bits[ 0 ] );
        string valOrExc;

        for( int index = 1; index < bits.Length; index++ )
            ctor += String.Format( ", 0x{0:X}", bits[ index ] );
        ctor += " } )";

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal( bits );

            // Format the decimal value for display.
            valOrExc = decimalNum.ToString( );
        }
        catch( Exception ex )
        {
            // Save the exception type if an exception was thrown.
            valOrExc = GetExceptionType( ex );
        }

        // Display the constructor and decimal value or exception.
        int ctorLen = 76 - valOrExc.Length;

        // Display the data on one line if it will fit.
        if( ctorLen > ctor.Length )
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ),
                valOrExc );

        // Otherwise, display the data on two lines.
        else
        {
            Console.WriteLine( "{0}", ctor );
            Console.WriteLine( "{0,76}", valOrExc );
        }
    }

    public static void Main( )
    {
        Console.WriteLine(
            "This example of the decimal( int[ ] ) constructor " +
            "\ngenerates the following output.\n" );
        Console.WriteLine( "{0,-38}{1,38}", "Constructor",
            "Value or Exception" );
        Console.WriteLine( "{0,-38}{1,38}", "-----------",
            "------------------" );

        // Construct decimal objects from integer arrays.
        CreateDecimal( new int[ ] { 0, 0, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 0, 0, 0 } );
        CreateDecimal( new int[ ] { 1000000000, 0, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 1000000000, 0, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 1000000000, 0 } );
        CreateDecimal( new int[ ] { 0, 0, 0, 1000000000 } );
        CreateDecimal( new int[ ] { -1, -1, -1, 0 } );
        CreateDecimal( new int[ ]
            { -1, -1, -1, unchecked( (int)0x80000000 ) } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x100000 } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x1C0000 } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x1D0000 } );
        CreateDecimal( new int[ ] { -1, 0, 0, 0x1C0001 } );
        CreateDecimal( new int[ ]
            { 0xF0000, 0xF0000, 0xF0000, 0xF0000 } );
    }
}

/*
This example of the decimal( int[ ] ) constructor
generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
decimal( { 0x0, 0x0, 0x0, 0x0 } )                                          0
decimal( { 0x0, 0x0, 0x0 } )                               ArgumentException
decimal( { 0x0, 0x0, 0x0, 0x0, 0x0 } )                     ArgumentException
decimal( { 0x3B9ACA00, 0x0, 0x0, 0x0 } )                          1000000000
decimal( { 0x0, 0x3B9ACA00, 0x0, 0x0 } )                 4294967296000000000
decimal( { 0x0, 0x0, 0x3B9ACA00, 0x0 } )       18446744073709551616000000000
decimal( { 0x0, 0x0, 0x0, 0x3B9ACA00 } )                   ArgumentException
decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x0 } )
                                               79228162514264337593543950335
decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000 } )
                                              -79228162514264337593543950335
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x100000 } )             0.0000004294967295
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0000 } ) 0.0000000000000000004294967295
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1D0000 } )              ArgumentException
decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0001 } )              ArgumentException
decimal( { 0xF0000, 0xF0000, 0xF0000, 0xF0000 } )
                                                 18133887298.441562272235520
*/
// Example of the decimal(int[]) constructor.
open System

// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
    let exceptionType = ex.GetType() |> string
    exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)

// Create a decimal object and display its value.
let createDecimal (bits: int[]) =
    // Format the constructor for display.
    let mutable ctor = String.Format("decimal( {{ 0x{0:X}", bits[0])

    for i = 1 to bits.Length - 1 do
        ctor <- $"{ctor}, 0x{bits[i]:X}"
    ctor <- ctor + " } )"

    let valOrExc =
        try
            // Construct the decimal value.
            let decimalNum = new decimal(bits)

            // Format the decimal value for display.
            string decimalNum
        with ex ->
            // Save the exception type if an exception was thrown.
            getExceptionType ex

    // Display the constructor and decimal value or exception.
    let ctorLen = 76 - valOrExc.Length;

    // Display the data on one line if it will fit.
    if ctorLen > ctor.Length then
        printfn $"{ctor.PadRight ctorLen}{valOrExc}"

    // Otherwise, display the data on two lines.
    else
        printfn $"{ctor}"
        printfn $"{valOrExc,76}"

printfn
    """This example of the decimal(int[]) constructor
generates the following output.
"""
printfn "%-38s%38s" "Constructor" "Value or Exception"
printfn "%-38s%38s" "-----------" "------------------"

// Construct decimal objects from integer arrays.
createDecimal [| 0; 0; 0; 0 |]
createDecimal [| 0; 0; 0 |]
createDecimal [| 0; 0; 0; 0; 0 |]
createDecimal [| 1000000000; 0; 0; 0 |]
createDecimal [| 0; 1000000000; 0; 0 |]
createDecimal [| 0; 0; 1000000000; 0 |]
createDecimal [| 0; 0; 0; 1000000000 |]
createDecimal [| -1; -1; -1; 0 |]
createDecimal [| -1; -1; -1; 0x80000000 |]
createDecimal [| -1; 0; 0; 0x100000 |]
createDecimal [| -1; 0; 0; 0x1C0000 |]
createDecimal [| -1; 0; 0; 0x1D0000 |]
createDecimal [| -1; 0; 0; 0x1C0001 |]
createDecimal [| 0xF0000; 0xF0000; 0xF0000; 0xF0000 |]


// This example of the decimal(int[]) constructor
// generates the following output.
//
// Constructor                                               Value or Exception
// -----------                                               ------------------
// decimal( { 0x0, 0x0, 0x0, 0x0 } )                                          0
// decimal( { 0x0, 0x0, 0x0 } )                               ArgumentException
// decimal( { 0x0, 0x0, 0x0, 0x0, 0x0 } )                     ArgumentException
// decimal( { 0x3B9ACA00, 0x0, 0x0, 0x0 } )                          1000000000
// decimal( { 0x0, 0x3B9ACA00, 0x0, 0x0 } )                 4294967296000000000
// decimal( { 0x0, 0x0, 0x3B9ACA00, 0x0 } )       18446744073709551616000000000
// decimal( { 0x0, 0x0, 0x0, 0x3B9ACA00 } )                   ArgumentException
// decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x0 } )
//                                                79228162514264337593543950335
// decimal( { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0x80000000 } )
//                                               -79228162514264337593543950335
// decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x100000 } )             0.0000004294967295
// decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0000 } ) 0.0000000000000000004294967295
// decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1D0000 } )              ArgumentException
// decimal( { 0xFFFFFFFF, 0x0, 0x0, 0x1C0001 } )              ArgumentException
// decimal( { 0xF0000, 0xF0000, 0xF0000, 0xF0000 } )
//                                                  18133887298.441562272235520
' Example of the Decimal( Integer( ) ) constructor.
Module DecimalCtorIArrDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( ByVal bits( ) As Integer )

        ' Format and save the constructor.
        Dim ctor As String = String.Format( "Decimal( {{ &H{0:X}", bits( 0 ) )
        Dim valOrExc As String
        Dim index As Integer
        For index = 1 to bits.Length - 1
            ctor &= String.Format( ", &H{0:X}", bits( index ) )
        Next index
        ctor &= " } )"

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( bits )

            ' Format the Decimal value for display.
            valOrExc = decimalNum.ToString( )

        ' Save the exception type if an exception was thrown.
        Catch ex As Exception
            valOrExc =  GetExceptionType( ex ) 
        End Try

        ' Display the constructor and Decimal value or exception.
        Dim ctorLen As Integer = 76 - valOrExc.Length
        If ctorLen > ctor.Length Then

            ' Display the data on one line if it will fit.
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ), _
                valOrExc )

        ' Otherwise, display the data on two lines.
        Else
            Console.WriteLine( "{0}", ctor )
            Console.WriteLine( "{0,76}", valOrExc )
        End If
    End Sub
    
    Sub Main( )

        Console.WriteLine( "This example of the " & _
            "Decimal( Integer( ) ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-38}{1,38}", "Constructor", _
            "Value or Exception" )
        Console.WriteLine( "{0,-38}{1,38}", "-----------", _
            "------------------" )

        ' Construct Decimal objects from Integer arrays.
        CreateDecimal( New Integer( ) { 0, 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 1000000000, 0, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 1000000000, 0, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 1000000000, 0 } )
        CreateDecimal( New Integer( ) { 0, 0, 0, 1000000000 } )
        CreateDecimal( New Integer( ) { -1, -1, -1, 0 } )
        CreateDecimal( New Integer( ) { -1, -1, -1, &H80000000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H100000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H1C0000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H1D0000 } )
        CreateDecimal( New Integer( ) { -1, 0, 0, &H1C0001 } )
        CreateDecimal( New Integer( ) _
            { &HF0000, &HF0000, &HF0000, &HF0000 } )
    End Sub 
End Module 

' This example of the Decimal( Integer( ) ) constructor
' generates the following output.
' 
' Constructor                                               Value or Exception
' -----------                                               ------------------
' Decimal( { &H0, &H0, &H0, &H0 } )                                          0
' Decimal( { &H0, &H0, &H0 } )                               ArgumentException
' Decimal( { &H0, &H0, &H0, &H0, &H0 } )                     ArgumentException
' Decimal( { &H3B9ACA00, &H0, &H0, &H0 } )                          1000000000
' Decimal( { &H0, &H3B9ACA00, &H0, &H0 } )                 4294967296000000000
' Decimal( { &H0, &H0, &H3B9ACA00, &H0 } )       18446744073709551616000000000
' Decimal( { &H0, &H0, &H0, &H3B9ACA00 } )                   ArgumentException
' Decimal( { &HFFFFFFFF, &HFFFFFFFF, &HFFFFFFFF, &H0 } )
'                                                79228162514264337593543950335
' Decimal( { &HFFFFFFFF, &HFFFFFFFF, &HFFFFFFFF, &H80000000 } )
'                                               -79228162514264337593543950335
' Decimal( { &HFFFFFFFF, &H0, &H0, &H100000 } )             0.0000004294967295
' Decimal( { &HFFFFFFFF, &H0, &H0, &H1C0000 } ) 0.0000000000000000004294967295
' Decimal( { &HFFFFFFFF, &H0, &H0, &H1D0000 } )              ArgumentException
' Decimal( { &HFFFFFFFF, &H0, &H0, &H1C0001 } )              ArgumentException
' Decimal( { &HF0000, &HF0000, &HF0000, &HF0000 } )
'                                                  18133887298.441562272235520

Hinweise

Die binäre Darstellung einer Decimal Zahl besteht aus einem 1-Bit-Zeichen, einer 96-Bit-ganzzahligen Zahl und einem Skalierungsfaktor, der zum Dividieren der ganzzahligen Zahl verwendet wird, und geben Sie an, welcher Teil der Zahl eine Dezimalzahl ist. Der Skalierungsfaktor ist implizit die Zahl 10, die auf einen Exponenten von 0 bis 28 ausgelöst wird.

bits ist ein 32-Bit-Array mit 32-Bit-Ganzzahlen.

bits [0], [1] bits und bits [2] enthalten die niedrige, mittlere und hohe 32-Bit-Zahl der 96-Bit-Ganzzahl.

bits [3] enthält den Skalierungsfaktor und das Zeichen und besteht aus folgenden Teilen:

Bits 0 bis 15, das untere Wort, sind nicht verwendet und müssen null sein.

Bits 16 bis 23 müssen einen Exponenten zwischen 0 und 28 enthalten, der die Leistung von 10 angibt, um die ganze Zahl zu dividieren.

Bits 24 bis 30 sind nicht verwendet und müssen null sein.

Bit 31 enthält das Zeichen; 0 bedeutet positiv, und 1 bedeutet negativ.

Ein numerischer Wert hat möglicherweise mehrere mögliche binäre Darstellungen; alle sind gleich gültig und numerisch gleichwertig. Beachten Sie, dass die Bitdarstellung zwischen negativer und positiver Null unterscheidet. Diese Werte werden in allen Vorgängen gleich behandelt.

Siehe auch

Gilt für:

Decimal(Int64)

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 64-Bit-Ganzzahl mit Vorzeichen.

public:
 Decimal(long value);
public Decimal (long value);
new decimal : int64 -> decimal
Public Sub New (value As Long)

Parameter

value
Int64

Der als Decimal darzustellende Wert.

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Struktur mit einem Decimal Int64 Wert initialisiert.

// Example of the Decimal( __int64 ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( __int64 value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-35}{1,22}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( __int64 ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-35}{1,22}", "Constructor", "Value" );
   Console::WriteLine( "{0,-35}{1,22}", "-----------", "-----" );
   
   // Construct Decimal objects from __int64 values.
   CreateDecimal( Int64::MinValue, "Int64::MinValue" );
   CreateDecimal( Int64::MaxValue, "Int64::MaxValue" );
   CreateDecimal( 0, "0" );
   CreateDecimal( 999999999999999999, "999999999999999999" );
   CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
   CreateDecimal( 0xE000000000000000, "0xE000000000000000" );
}

/*
This example of the Decimal( __int64 ) constructor
generates the following output.

Constructor                                         Value
-----------                                         -----
Decimal( Int64::MinValue )           -9223372036854775808
Decimal( Int64::MaxValue )            9223372036854775807
Decimal( 0 )                                            0
Decimal( 999999999999999999 )          999999999999999999
Decimal( 0x2000000000000000 )         2305843009213693952
Decimal( 0xE000000000000000 )        -2305843009213693952
*/
// Example of the decimal( long ) constructor.
using System;

class DecimalCtorLDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( long value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-35}{1,22}", ctor, decimalNum );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( long ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-35}{1,22}", "Constructor", "Value" );
        Console.WriteLine( "{0,-35}{1,22}", "-----------", "-----" );

        // Construct decimal objects from long values.
        CreateDecimal( long.MinValue, "long.MinValue" );
        CreateDecimal( long.MaxValue, "long.MaxValue" );
        CreateDecimal( 0L, "0L" );
        CreateDecimal( 999999999999999999, "999999999999999999" );
        CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
        CreateDecimal( unchecked( (long)0xE000000000000000 ),
            "(long)0xE000000000000000" );
    }
}

/*
This example of the decimal( long ) constructor
generates the following output.

Constructor                                         Value
-----------                                         -----
decimal( long.MinValue )             -9223372036854775808
decimal( long.MaxValue )              9223372036854775807
decimal( 0 )                                            0
decimal( 999999999999999999 )          999999999999999999
decimal( 0x2000000000000000 )         2305843009213693952
decimal( (long)0xE000000000000000 )  -2305843009213693952
*/
// Example of the decimal( int64 ) constructor.
open System

// Create a decimal object and display its value.
let createDecimal (value: int64) valToStr =
    let decimalNum = Decimal value

    // Format the constructor for display.
    let ctor = $"decimal( {valToStr} )"

    // Display the constructor and its value.
    printfn $"{ctor,-35}{decimalNum,22}"

printfn "This example of the decimal( int64 ) constructor\ngenerates the following output.\n"
printfn "%-35s%22s" "Constructor" "Value"
printfn "%-35s%22s" "-----------" "-----"

// Construct decimal objects from long values.
createDecimal Int64.MinValue "Int64.MinValue"
createDecimal Int64.MaxValue "Int64.MaxValue"
createDecimal 0L "0L"
createDecimal 999999999999999999L "999999999999999999L"
createDecimal 0x2000000000000000L "0x2000000000000000L"
createDecimal (int64 0xE000000000000000L) "int64 0xE000000000000000L"

// This example of the decimal( int64 ) constructor 
// generates the following output.
//
// Constructor                                         Value
// -----------                                         -----
// decimal( Int64.MinValue )            -9223372036854775808
// decimal( Int64.MaxValue )             9223372036854775807
// decimal( 0L )                                           0
// decimal( 999999999999999999L )         999999999999999999
// decimal( 0x2000000000000000L )        2305843009213693952
// decimal( int64 0xE000000000000000L )  -2305843009213693952
' Example of the Decimal( Long ) constructor.
Module DecimalCtorLDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Long, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-30}{1,22}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Long ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-30}{1,22}", "Constructor", "Value" )
        Console.WriteLine( "{0,-30}{1,22}", "-----------", "-----" )

        ' Construct Decimal objects from Long values.
        CreateDecimal( Long.MinValue, "Long.MinValue" )                
        CreateDecimal( Long.MaxValue, "Long.MaxValue" )                
        CreateDecimal( 0L, "0" )                
        CreateDecimal( 999999999999999999, "999999999999999999" )                
        CreateDecimal( &H2000000000000000, "&H2000000000000000" )                
        CreateDecimal( &HE000000000000000, "&HE000000000000000" )                
    End Sub 
End Module 

' This example of the Decimal( Long ) constructor
' generates the following output.
' 
' Constructor                                    Value
' -----------                                    -----
' Decimal( Long.MinValue )        -9223372036854775808
' Decimal( Long.MaxValue )         9223372036854775807
' Decimal( 0 )                                       0
' Decimal( 999999999999999999 )     999999999999999999
' Decimal( &H2000000000000000 )    2305843009213693952
' Decimal( &HE000000000000000 )   -2305843009213693952

Gilt für:

Decimal(ReadOnlySpan<Int32>)

Initialisiert eine neue Instanz eines Decimal dezimalen Werts, der in binär dargestellt wird und in der angegebenen Spanne enthalten ist.

public:
 Decimal(ReadOnlySpan<int> bits);
public Decimal (ReadOnlySpan<int> bits);
new decimal : ReadOnlySpan<int> -> decimal
Public Sub New (bits As ReadOnlySpan(Of Integer))

Parameter

bits
ReadOnlySpan<Int32>

Eine Spanne aus vier Int32-Werten, die eine Binärdarstellung eines Dezimalwerts enthält.

Ausnahmen

Die Länge von bits ist nicht 4, oder die Darstellung des Dezimalwerts in bits ist ungültig.

Gilt für:

Decimal(Single)

Initialisiert eine neue Instanz von Decimal mit dem Wert der angegebenen Gleitkommazahl mit einfacher Genauigkeit.

public:
 Decimal(float value);
public Decimal (float value);
new decimal : single -> decimal
Public Sub New (value As Single)

Parameter

value
Single

Der als Decimal darzustellende Wert.

Ausnahmen

value ist größer als MaxValue oder kleiner als MinValue.

- oder -

value ist NaN, PositiveInfinity oder NegativeInfinity.

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Decimal Struktur mit einem Single Wert initialisiert.

// Example of the Decimal( float ) constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( float value, String^ valToStr )
{
   
   // Format and display the constructor.
   Console::Write( "{0,-27}", String::Format( "Decimal( {0} )", valToStr ) );
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(value);
      
      // Display the value if it was created successfully.
      Console::WriteLine( "{0,31}", decimalNum );
   }
   catch ( Exception^ ex ) 
   {
      
      // Display the exception type if an exception was thrown.
      Console::WriteLine( "{0,31}", GetExceptionType( ex ) );
   }

}

int main()
{
   Console::WriteLine( "This example of the Decimal( float ) "
   "constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-27}{1,31}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-27}{1,31}", "-----------", "------------------" );
   
   // Construct Decimal objects from float values.
   CreateDecimal( 1.2345E+5, "1.2345E+5" );
   CreateDecimal( 1.234567E+15, "1.234567E+15" );
   CreateDecimal( 1.23456789E+25, "1.23456789E+25" );
   CreateDecimal( 1.23456789E+35, "1.23456789E+35" );
   CreateDecimal( 1.2345E-5, "1.2345E-5" );
   CreateDecimal( 1.234567E-15, "1.234567E-15" );
   CreateDecimal( 1.23456789E-25, "1.23456789E-25" );
   CreateDecimal( 1.23456789E-35, "1.23456789E-35" );
   CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" );
}

/*
This example of the Decimal( float ) constructor
generates the following output.

Constructor                             Value or Exception
-----------                             ------------------
Decimal( 1.2345E+5 )                                123450
Decimal( 1.234567E+15 )                   1234567000000000
Decimal( 1.23456789E+25 )       12345680000000000000000000
Decimal( 1.23456789E+35 )                OverflowException
Decimal( 1.2345E-5 )                           0.000012345
Decimal( 1.234567E-15 )            0.000000000000001234567
Decimal( 1.23456789E-25 )   0.0000000000000000000000001235
Decimal( 1.23456789E-35 )                                0
Decimal( 1.0 / 7.0 )                             0.1428571
*/
// Example of the decimal( float ) constructor.
using System;

class DecimalCtorSDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring(
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( float value, string valToStr )
    {
        // Format and display the constructor.
        Console.Write( "{0,-27}",
            String.Format( "decimal( {0} )", valToStr ) );

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal( value );

            // Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum );
        }
        catch( Exception ex )
        {
            // Display the exception type if an exception was thrown.
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) );
        }
    }

    public static void Main( )
    {

        Console.WriteLine( "This example of the decimal( float ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-27}{1,31}", "Constructor",
            "Value or Exception" );
        Console.WriteLine( "{0,-27}{1,31}", "-----------",
            "------------------" );

        // Construct decimal objects from float values.
        CreateDecimal( 1.2345E+5F, "1.2345E+5F" );
        CreateDecimal( 1.234567E+15F, "1.234567E+15F" );
        CreateDecimal( 1.23456789E+25F, "1.23456789E+25F" );
        CreateDecimal( 1.23456789E+35F, "1.23456789E+35F" );
        CreateDecimal( 1.2345E-5F, "1.2345E-5F" );
        CreateDecimal( 1.234567E-15F, "1.234567E-15F" );
        CreateDecimal( 1.23456789E-25F, "1.23456789E-25F" );
        CreateDecimal( 1.23456789E-35F, "1.23456789E-35F" );
        CreateDecimal( 1.0F / 7.0F, "1.0F / 7.0F" );
    }
}

/*
This example of the decimal( float ) constructor
generates the following output.

Constructor                             Value or Exception
-----------                             ------------------
decimal( 1.2345E+5F )                               123450
decimal( 1.234567E+15F )                  1234567000000000
decimal( 1.23456789E+25F )      12345680000000000000000000
decimal( 1.23456789E+35F )               OverflowException
decimal( 1.2345E-5F )                          0.000012345
decimal( 1.234567E-15F )           0.000000000000001234567
decimal( 1.23456789E-25F )  0.0000000000000000000000001235
decimal( 1.23456789E-35F )                               0
decimal( 1.0F / 7.0F )                           0.1428571
*/
// Example of the decimal( float ) constructor.
open System

// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
    let exceptionType = ex.GetType() |> string
    exceptionType.Substring(exceptionType.LastIndexOf '.'  + 1)

// Create a decimal object and display its value.
let createDecimal (value: float32) valToStr =
    // Format and display the constructor.
    printf "%-27s" $"decimal( {valToStr} )"

    try
        // Construct the decimal value.
        let decimalNum = Decimal value

        // Display the value if it was created successfully.
        printfn $"{decimalNum,31}"
    with ex ->
        // Display the exception type if an exception was thrown.
        printfn $"{getExceptionType ex,31}"


printfn "This example of the decimal( float ) constructor \ngenerates the following output.\n"
printfn $"""{"Constructor",-27}{"Value or Exception",31}"""
printfn $"""{"-----------",-27}{"------------------",31}"""

// Construct decimal objects from float values.
createDecimal 1.2345E+5f "1.2345E+5F"
createDecimal 1.234567E+15f "1.234567E+15F"
createDecimal 1.23456789E+25f "1.23456789E+25F"
createDecimal 1.23456789E+35f "1.23456789E+35F"
createDecimal 1.2345E-5f "1.2345E-5F"
createDecimal 1.234567E-15f "1.234567E-15F"
createDecimal 1.23456789E-25f "1.23456789E-25F"
createDecimal 1.23456789E-35f "1.23456789E-35F"
createDecimal (1f / 7f) "1.0F / 7.0F"


// This example of the decimal( float ) constructor
// generates the following output.

// Constructor                             Value or Exception
// -----------                             ------------------
// decimal( 1.2345E+5F )                               123450
// decimal( 1.234567E+15F )                  1234567000000000
// decimal( 1.23456789E+25F )      12345680000000000000000000
// decimal( 1.23456789E+35F )               OverflowException
// decimal( 1.2345E-5F )                          0.000012345
// decimal( 1.234567E-15F )           0.000000000000001234567
// decimal( 1.23456789E-25F )  0.0000000000000000000000001235
// decimal( 1.23456789E-35F )                               0
// decimal( 1.0F / 7.0F )                           0.1428571
' Example of the Decimal( Single ) constructor.
Module DecimalCtorSDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As Single, valToStr As String )

        ' Format and display the constructor.
        Console.Write( "{0,-27}", _
            String.Format( "Decimal( {0} )", valToStr ) )

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( value )

            ' Display the value if it was created successfully.
            Console.WriteLine( "{0,31}", decimalNum )

        ' Display the exception type if an exception was thrown.
        Catch ex As Exception
            Console.WriteLine( "{0,31}", GetExceptionType( ex ) )
        End Try
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Single ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-27}{1,31}", "Constructor", "Value or Exception" )
        Console.WriteLine( "{0,-27}{1,31}", "-----------", "------------------" )

        ' Construct Decimal objects from Single values.
        CreateDecimal( 1.2345E+5, "1.2345E+5" )                
        CreateDecimal( 1.234567E+15, "1.234567E+15" )                
        CreateDecimal( 1.23456789E+25, "1.23456789E+25" )                
        CreateDecimal( 1.23456789E+35, "1.23456789E+35" )                
        CreateDecimal( 1.2345E-5, "1.2345E-5" )                
        CreateDecimal( 1.234567E-15, "1.234567E-15" )                
        CreateDecimal( 1.23456789E-25, "1.23456789E-25" )                
        CreateDecimal( 1.23456789E-35, "1.23456789E-35" )                
        CreateDecimal( 1.0 / 7.0, "1.0 / 7.0" )                
    End Sub 
End Module 

' This example of the Decimal( Single ) constructor
' generates the following output.
' 
' Constructor                             Value or Exception
' -----------                             ------------------
' Decimal( 1.2345E+5 )                                123450
' Decimal( 1.234567E+15 )                   1234567000000000
' Decimal( 1.23456789E+25 )       12345680000000000000000000
' Decimal( 1.23456789E+35 )                OverflowException
' Decimal( 1.2345E-5 )                           0.000012345
' Decimal( 1.234567E-15 )            0.000000000000001234567
' Decimal( 1.23456789E-25 )   0.0000000000000000000000001235
' Decimal( 1.23456789E-35 )                                0
' Decimal( 1.0 / 7.0 )                             0.1428571

Hinweise

Dieser Konstruktor rundet auf 7 signifikante Ziffern ab, indem er auf das Nächste rundet value . Dies geschieht auch dann, wenn die Zahl mehr als 7 Ziffern aufweist und die weniger signifikanten Ziffern null sind.

Gilt für:

Decimal(UInt32)

Wichtig

Diese API ist nicht CLS-kompatibel.

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 32-Bit-Ganzzahl ohne Vorzeichen.

public:
 Decimal(System::UInt32 value);
[System.CLSCompliant(false)]
public Decimal (uint value);
[<System.CLSCompliant(false)>]
new decimal : uint32 -> decimal
Public Sub New (value As UInteger)

Parameter

value
UInt32

Der als Decimal darzustellende Wert.

Attribute

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Decimal Struktur mit einem UInt32 Wert initialisiert.

// Example of the Decimal( unsigned int ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( unsigned int value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-30}{1,16}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( unsigned "
   "int ) constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-30}{1,16}", "Constructor", "Value" );
   Console::WriteLine( "{0,-30}{1,16}", "-----------", "-----" );
   
   // Construct Decimal objects from unsigned int values.
   CreateDecimal( UInt32::MinValue, "UInt32::MinValue" );
   CreateDecimal( UInt32::MaxValue, "UInt32::MaxValue" );
   CreateDecimal( Int32::MaxValue, "Int32::MaxValue" );
   CreateDecimal( 999999999, "999999999" );
   CreateDecimal( 0x40000000, "0x40000000" );
   CreateDecimal( 0xC0000000, "0xC0000000" );
}

/*
This example of the Decimal( unsigned int ) constructor
generates the following output.

Constructor                              Value
-----------                              -----
Decimal( UInt32::MinValue )                  0
Decimal( UInt32::MaxValue )         4294967295
Decimal( Int32::MaxValue )          2147483647
Decimal( 999999999 )                 999999999
Decimal( 0x40000000 )               1073741824
Decimal( 0xC0000000 )               3221225472
*/
// Example of the decimal( uint ) constructor.
using System;

class DecimalCtorUIDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( uint value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,16}", ctor, decimalNum );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( uint ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-33}{1,16}", "Constructor", "Value" );
        Console.WriteLine( "{0,-33}{1,16}", "-----------", "-----" );

        // Construct decimal objects from uint values.
        CreateDecimal( uint.MinValue, "uint.MinValue" );
        CreateDecimal( uint.MaxValue, "uint.MaxValue" );
        CreateDecimal( (uint)int.MaxValue, "(uint)int.MaxValue" );
        CreateDecimal( 999999999U, "999999999U" );
        CreateDecimal( 0x40000000U, "0x40000000U" );
        CreateDecimal( 0xC0000000, "0xC0000000" );
    }
}

/*
This example of the decimal( uint ) constructor
generates the following output.

Constructor                                 Value
-----------                                 -----
decimal( uint.MinValue )                        0
decimal( uint.MaxValue )               4294967295
decimal( (uint)int.MaxValue )          2147483647
decimal( 999999999U )                   999999999
decimal( 0x40000000U )                 1073741824
decimal( 0xC0000000 )                  3221225472
*/
// Example of the decimal( uint ) constructor.
open System

// Create a decimal object and display its value.
let createDecimal (value: uint) valToStr =
    let decimalNum = Decimal value

    // Format the constructor for display.
    let ctor = $"decimal( {valToStr} )"

    // Display the constructor and its value.
    printfn $"{ctor,-33}{decimalNum,16}"

printfn "This example of the decimal( uint ) constructor \ngenerates the following output.\n"
printfn "%-33s%16s" "Constructor" "Value"
printfn "%-33s%16s" "-----------" "-----" 

// Construct decimal objects from uint values.
createDecimal UInt32.MinValue "UInt32.MinValue"
createDecimal UInt32.MaxValue "UInt32.MaxValue"
createDecimal (uint Int32.MaxValue) "uint Int32.MaxValue"
createDecimal 999999999u "999999999u"
createDecimal 0x40000000u "0x40000000u"
createDecimal 0xC0000000u "0xC0000000u"


// This example of the decimal( uint ) constructor 
// generates the following output.
//
// Constructor                                 Value
// -----------                                 -----
// decimal( UInt32.MinValue )                      0
// decimal( UInt32.MaxValue )             4294967295
// decimal( uint Int32.MaxValue )         2147483647
// decimal( 999999999u )                   999999999
// decimal( 0x40000000u )                 1073741824
// decimal( 0xC0000000u )                 3221225472
' Example of the Decimal( UInt32 ) constructor.
Module DecimalCtorUIDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As UInt32, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,16}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( UInt32 ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-33}{1,16}", "Constructor", "Value" )
        Console.WriteLine( "{0,-33}{1,16}", "-----------", "-----" )

        ' Construct Decimal objects from UInt32 values.
        ' UInt32.MinValue and UInt32.MaxValue are not defined in VB.
        CreateDecimal( Convert.ToUInt32( 0 ), """UInt32.MinValue""" )
        CreateDecimal( Convert.ToUInt32( 4294967295 ), _
            """UInt32.MaxValue""" )
        CreateDecimal( Convert.ToUInt32( Integer.MaxValue ), _
            "Integer.MaxValue" )              
        CreateDecimal( Convert.ToUInt32( 999999999 ), "999999999" ) 
        CreateDecimal( Convert.ToUInt32( &H40000000 ), "&H40000000" ) 
        CreateDecimal( Convert.ToUInt32( &HC0000000L ), "&HC0000000" )
    End Sub 
End Module 

' This example of the Decimal( UInt32 ) constructor
' generates the following output.
' 
' Constructor                                 Value
' -----------                                 -----
' Decimal( "UInt32.MinValue" )                    0
' Decimal( "UInt32.MaxValue" )           4294967295
' Decimal( Integer.MaxValue )            2147483647
' Decimal( 999999999 )                    999999999
' Decimal( &H40000000 )                  1073741824
' Decimal( &HC0000000 )                  3221225472

Gilt für:

Decimal(UInt64)

Wichtig

Diese API ist nicht CLS-kompatibel.

Initialisiert eine neue Instanz von Decimal mit dem Wert einer angegebenen 64-Bit-Ganzzahl ohne Vorzeichen.

public:
 Decimal(System::UInt64 value);
[System.CLSCompliant(false)]
public Decimal (ulong value);
[<System.CLSCompliant(false)>]
new decimal : uint64 -> decimal
Public Sub New (value As ULong)

Parameter

value
UInt64

Der als Decimal darzustellende Wert.

Attribute

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Decimal Struktur mit einem UInt64 Wert initialisiert.

// Example of the Decimal( unsigned __int64 ) constructor.
using namespace System;

// Create a Decimal object and display its value.
void CreateDecimal( unsigned __int64 value, String^ valToStr )
{
   Decimal decimalNum = Decimal(value);
   
   // Format the constructor for display.
   String^ ctor = String::Format( "Decimal( {0} )", valToStr );
   
   // Display the constructor and its value.
   Console::WriteLine( "{0,-33}{1,22}", ctor, decimalNum );
}

int main()
{
   Console::WriteLine( "This example of the Decimal( unsigned "
   "__int64 ) constructor \ngenerates the following output.\n" );
   Console::WriteLine( "{0,-33}{1,22}", "Constructor", "Value" );
   Console::WriteLine( "{0,-33}{1,22}", "-----------", "-----" );
   
   // Construct Decimal objects from unsigned __int64 values.
   CreateDecimal( UInt64::MinValue, "UInt64::MinValue" );
   CreateDecimal( UInt64::MaxValue, "UInt64::MaxValue" );
   CreateDecimal( Int64::MaxValue, "Int64::MaxValue" );
   CreateDecimal( 999999999999999999, "999999999999999999" );
   CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
   CreateDecimal( 0xE000000000000000, "0xE000000000000000" );
}

/*
This example of the Decimal( unsigned __int64 ) constructor
generates the following output.

Constructor                                       Value
-----------                                       -----
Decimal( UInt64::MinValue )                           0
Decimal( UInt64::MaxValue )        18446744073709551615
Decimal( Int64::MaxValue )          9223372036854775807
Decimal( 999999999999999999 )        999999999999999999
Decimal( 0x2000000000000000 )       2305843009213693952
Decimal( 0xE000000000000000 )      16140901064495857664
*/
// Example of the decimal( ulong ) constructor.
using System;

class DecimalCtorLDemo
{
    // Create a decimal object and display its value.
    public static void CreateDecimal( ulong value, string valToStr )
    {
        decimal decimalNum = new decimal( value );

        // Format the constructor for display.
        string ctor = String.Format( "decimal( {0} )", valToStr );

        // Display the constructor and its value.
        Console.WriteLine( "{0,-35}{1,22}", ctor, decimalNum );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the decimal( ulong ) " +
            "constructor \ngenerates the following output.\n" );
        Console.WriteLine( "{0,-35}{1,22}", "Constructor", "Value" );
        Console.WriteLine( "{0,-35}{1,22}", "-----------", "-----" );

        // Construct decimal objects from ulong values.
        CreateDecimal( ulong.MinValue, "ulong.MinValue" );
        CreateDecimal( ulong.MaxValue, "ulong.MaxValue" );
        CreateDecimal( long.MaxValue, "long.MaxValue" );
        CreateDecimal( 999999999999999999, "999999999999999999" );
        CreateDecimal( 0x2000000000000000, "0x2000000000000000" );
        CreateDecimal( 0xE000000000000000, "0xE000000000000000" );
    }
}

/*
This example of the decimal( ulong ) constructor
generates the following output.

Constructor                                         Value
-----------                                         -----
decimal( ulong.MinValue )                               0
decimal( ulong.MaxValue )            18446744073709551615
decimal( long.MaxValue )              9223372036854775807
decimal( 999999999999999999 )          999999999999999999
decimal( 0x2000000000000000 )         2305843009213693952
decimal( 0xE000000000000000 )        16140901064495857664
*/
// Example of the decimal( uint64 ) constructor.
open System

// Create a decimal object and display its value.
let createDecimal (value: uint64) valToStr =
    let decimalNum = Decimal value

    // Format the constructor for display.
    let ctor = $"decimal( {valToStr} )"

    // Display the constructor and its value.
    printfn $"{ctor,-35}{decimalNum,22}"

printfn "This example of the decimal( uint64 ) constructor \ngenerates the following output.\n"
printfn "%-35s%22s" "Constructor" "Value"
printfn "%-35s%22s" "-----------" "-----"

// Construct decimal objects from ulong values.
createDecimal UInt64.MinValue "UInt64.MinValue"
createDecimal UInt64.MaxValue "UInt64.MaxValue"
createDecimal (uint64 Int64.MaxValue) "int64 Int64.MaxValue"
createDecimal 999999999999999999uL "999999999999999999uL"
createDecimal 0x2000000000000000uL "0x2000000000000000uL"
createDecimal 0xE000000000000000uL "0xE000000000000000uL"


// This example of the decimal( uint64 ) constructor 
// generates the following output.
//
// Constructor                                         Value
// -----------                                         -----
// decimal( UInt64.MinValue )                              0
// decimal( UInt64.MaxValue )           18446744073709551615
// decimal( int64 Int64.MaxValue )       9223372036854775807
// decimal( 999999999999999999uL )        999999999999999999
// decimal( 0x2000000000000000uL )       2305843009213693952
// decimal( 0xE000000000000000uL )      16140901064495857664
' Example of the Decimal( UInt64 ) constructor.
Module DecimalCtorULDemo

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( value As UInt64, valToStr As String )

        Dim decimalNum As New Decimal( value )

        ' Format the constructor for display.
        Dim ctor As String = _
            String.Format( "Decimal( {0} )", valToStr )

        ' Display the constructor and its value.
        Console.WriteLine( "{0,-33}{1,22}", ctor, decimalNum )
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( UInt64 ) constructor " & _
            vbCrLf & "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-33}{1,22}", "Constructor", "Value" )
        Console.WriteLine( "{0,-33}{1,22}", "-----------", "-----" )

        ' Construct Decimal objects from UInt64 values.
        ' UInt64.MinValue and UInt64.MaxValue are not defined in VB.
        CreateDecimal( Convert.ToUInt64( 0 ), """UInt64.MinValue""" )
        CreateDecimal( Convert.ToUInt64( 18446744073709551615D ), _
            """UInt64.MaxValue""" )
        CreateDecimal( Convert.ToUInt64( Long.MaxValue ), _
            "Long.MaxValue" )              
        CreateDecimal( Convert.ToUInt64( 999999999999999999 ), _
            "999999999999999999" )                
        CreateDecimal( Convert.ToUInt64( &H2000000000000000 ), _
            "&H2000000000000000" )                
        CreateDecimal( Convert.ToUInt64( 16140901064495857664.0 ), _
            "16140901064495857664.0" )                
    End Sub 
End Module 

' This example of the Decimal( UInt64 ) constructor
' generates the following output.
' 
' Constructor                                       Value
' -----------                                       -----
' Decimal( "UInt64.MinValue" )                          0
' Decimal( "UInt64.MaxValue" )       18446744073709551615
' Decimal( Long.MaxValue )            9223372036854775807
' Decimal( 999999999999999999 )        999999999999999999
' Decimal( &H2000000000000000 )       2305843009213693952
' Decimal( 16140901064495857664.0 )  16140901064495857664

Gilt für:

Decimal(Int32, Int32, Int32, Boolean, Byte)

Initialisiert einen neue Instanz von Decimal mit Parametern, die die Bestandteile der Instanz angeben.

public:
 Decimal(int lo, int mid, int hi, bool isNegative, System::Byte scale);
public Decimal (int lo, int mid, int hi, bool isNegative, byte scale);
new decimal : int * int * int * bool * byte -> decimal
Public Sub New (lo As Integer, mid As Integer, hi As Integer, isNegative As Boolean, scale As Byte)

Parameter

lo
Int32

Die unteren 32 Bit einer 96-Bit-Ganzzahl.

mid
Int32

Die mittleren 32 Bit einer 96-Bit-Ganzzahl.

hi
Int32

Die oberen 32 Bit einer 96-Bit-Ganzzahl.

isNegative
Boolean

true, um eine negative Zahl anzugeben; false, um eine positive Zahl anzugeben.

scale
Byte

Eine Zehnerpotenz mit einem Exponenten zwischen 0 (null) und 28.

Ausnahmen

scale ist größer als 28.

Beispiele

Im folgenden Codebeispiel werden mehrere Decimal Zahlen mithilfe der Konstruktorüberladung erstellt, die eine Decimal Struktur mit drei Int32 Wertwörtern, einem Boolean Zeichen und einem Byte Skalierungsfaktor initialisiert.

// Example of the Decimal( int, int, int, bool, unsigned char ) 
// constructor.
using namespace System;

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Create a Decimal object and display its value.
void CreateDecimal( int low, int mid, int high, bool isNeg, unsigned char scale )
{
   
   // Format the constructor for display.
   array<Object^>^boxedParams = gcnew array<Object^>(5);
   boxedParams[ 0 ] = low;
   boxedParams[ 1 ] = mid;
   boxedParams[ 2 ] = high;
   boxedParams[ 3 ] = isNeg;
   boxedParams[ 4 ] = scale;
   String^ ctor = String::Format( "Decimal( {0}, {1}, {2}, {3}, {4} )", boxedParams );
   String^ valOrExc;
   try
   {
      
      // Construct the Decimal value.
      Decimal decimalNum = Decimal(low,mid,high,isNeg,scale);
      
      // Format and save the Decimal value.
      valOrExc = decimalNum.ToString();
   }
   catch ( Exception^ ex ) 
   {
      
      // Save the exception type if an exception was thrown.
      valOrExc = GetExceptionType( ex );
   }

   
   // Display the constructor and Decimal value or exception.
   int ctorLen = 76 - valOrExc->Length;
   
   // Display the data on one line if it will fit.
   if ( ctorLen > ctor->Length )
      Console::WriteLine( "{0}{1}", ctor->PadRight( ctorLen ), valOrExc );
   // Otherwise, display the data on two lines.
   else
   {
      Console::WriteLine( "{0}", ctor );
      Console::WriteLine( "{0,76}", valOrExc );
   }
}

int main()
{
   Console::WriteLine( "This example of the Decimal( int, int, "
   "int, bool, unsigned char ) \nconstructor "
   "generates the following output.\n" );
   Console::WriteLine( "{0,-38}{1,38}", "Constructor", "Value or Exception" );
   Console::WriteLine( "{0,-38}{1,38}", "-----------", "------------------" );
   
   // Construct Decimal objects from double values.
   CreateDecimal( 0, 0, 0, false, 0 );
   CreateDecimal( 0, 0, 0, false, 27 );
   CreateDecimal( 0, 0, 0, true, 0 );
   CreateDecimal( 1000000000, 0, 0, false, 0 );
   CreateDecimal( 0, 1000000000, 0, false, 0 );
   CreateDecimal( 0, 0, 1000000000, false, 0 );
   CreateDecimal( 1000000000, 1000000000, 1000000000, false, 0 );
   CreateDecimal(  -1, -1, -1, false, 0 );
   CreateDecimal(  -1, -1, -1, true, 0 );
   CreateDecimal(  -1, -1, -1, false, 15 );
   CreateDecimal(  -1, -1, -1, false, 28 );
   CreateDecimal(  -1, -1, -1, false, 29 );
   CreateDecimal( Int32::MaxValue, 0, 0, false, 18 );
   CreateDecimal( Int32::MaxValue, 0, 0, false, 28 );
   CreateDecimal( Int32::MaxValue, 0, 0, true, 28 );
}

/*
This example of the Decimal( int, int, int, bool, unsigned char )
constructor generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
Decimal( 0, 0, 0, False, 0 )                                               0
Decimal( 0, 0, 0, False, 27 )                                              0
Decimal( 0, 0, 0, True, 0 )                                                0
Decimal( 1000000000, 0, 0, False, 0 )                             1000000000
Decimal( 0, 1000000000, 0, False, 0 )                    4294967296000000000
Decimal( 0, 0, 1000000000, False, 0 )          18446744073709551616000000000
Decimal( 1000000000, 1000000000, 1000000000, False, 0 )
                                               18446744078004518913000000000
Decimal( -1, -1, -1, False, 0 )                79228162514264337593543950335
Decimal( -1, -1, -1, True, 0 )                -79228162514264337593543950335
Decimal( -1, -1, -1, False, 15 )              79228162514264.337593543950335
Decimal( -1, -1, -1, False, 28 )              7.9228162514264337593543950335
Decimal( -1, -1, -1, False, 29 )                 ArgumentOutOfRangeException
Decimal( 2147483647, 0, 0, False, 18 )                  0.000000002147483647
Decimal( 2147483647, 0, 0, False, 28 )        0.0000000000000000002147483647
Decimal( 2147483647, 0, 0, True, 28 )        -0.0000000000000000002147483647
*/
// Example of the decimal( int, int, int, bool, byte ) constructor.
using System;

class DecimalCtorIIIBByDemo
{
    // Get the exception type name; remove the namespace prefix.
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring(
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Create a decimal object and display its value.
    public static void CreateDecimal( int low, int mid, int high,
        bool isNeg, byte scale )
    {
        // Format the constructor for display.
        string ctor = String.Format(
            "decimal( {0}, {1}, {2}, {3}, {4} )",
            low, mid, high, isNeg, scale );
        string valOrExc;

        try
        {
            // Construct the decimal value.
            decimal decimalNum = new decimal(
                low, mid, high, isNeg, scale );

            // Format and save the decimal value.
            valOrExc = decimalNum.ToString( );
        }
        catch( Exception ex )
        {
            // Save the exception type if an exception was thrown.
            valOrExc = GetExceptionType( ex );
        }

        // Display the constructor and decimal value or exception.
        int ctorLen = 76 - valOrExc.Length;

        // Display the data on one line if it will fit.
        if ( ctorLen > ctor.Length )
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ),
                valOrExc );

        // Otherwise, display the data on two lines.
        else
        {
            Console.WriteLine( "{0}", ctor );
            Console.WriteLine( "{0,76}", valOrExc );
        }
    }

    public static void Main( )
    {

        Console.WriteLine( "This example of the decimal( int, int, " +
            "int, bool, byte ) \nconstructor " +
            "generates the following output.\n" );
        Console.WriteLine( "{0,-38}{1,38}", "Constructor",
            "Value or Exception" );
        Console.WriteLine( "{0,-38}{1,38}", "-----------",
            "------------------" );

        // Construct decimal objects from the component fields.
        CreateDecimal( 0, 0, 0, false, 0 );
        CreateDecimal( 0, 0, 0, false, 27 );
        CreateDecimal( 0, 0, 0, true, 0 );
        CreateDecimal( 1000000000, 0, 0, false, 0 );
        CreateDecimal( 0, 1000000000, 0, false, 0 );
        CreateDecimal( 0, 0, 1000000000, false, 0 );
        CreateDecimal( 1000000000, 1000000000, 1000000000, false, 0 );
        CreateDecimal( -1, -1, -1, false, 0 );
        CreateDecimal( -1, -1, -1, true, 0 );
        CreateDecimal( -1, -1, -1, false, 15 );
        CreateDecimal( -1, -1, -1, false, 28 );
        CreateDecimal( -1, -1, -1, false, 29 );
        CreateDecimal( int.MaxValue, 0, 0, false, 18 );
        CreateDecimal( int.MaxValue, 0, 0, false, 28 );
        CreateDecimal( int.MaxValue, 0, 0, true, 28 );
    }
}

/*
This example of the decimal( int, int, int, bool, byte )
constructor generates the following output.

Constructor                                               Value or Exception
-----------                                               ------------------
decimal( 0, 0, 0, False, 0 )                                               0
decimal( 0, 0, 0, False, 27 )                                              0
decimal( 0, 0, 0, True, 0 )                                                0
decimal( 1000000000, 0, 0, False, 0 )                             1000000000
decimal( 0, 1000000000, 0, False, 0 )                    4294967296000000000
decimal( 0, 0, 1000000000, False, 0 )          18446744073709551616000000000
decimal( 1000000000, 1000000000, 1000000000, False, 0 )
                                               18446744078004518913000000000
decimal( -1, -1, -1, False, 0 )                79228162514264337593543950335
decimal( -1, -1, -1, True, 0 )                -79228162514264337593543950335
decimal( -1, -1, -1, False, 15 )              79228162514264.337593543950335
decimal( -1, -1, -1, False, 28 )              7.9228162514264337593543950335
decimal( -1, -1, -1, False, 29 )                 ArgumentOutOfRangeException
decimal( 2147483647, 0, 0, False, 18 )                  0.000000002147483647
decimal( 2147483647, 0, 0, False, 28 )        0.0000000000000000002147483647
decimal( 2147483647, 0, 0, True, 28 )        -0.0000000000000000002147483647
*/
// Example of the decimal( int, int, int, bool, byte ) constructor.
open System

// Get the exception type name; remove the namespace prefix.
let getExceptionType (ex: exn) =
    let exceptionType = ex.GetType() |> string
    exceptionType.Substring(exceptionType.LastIndexOf '.' + 1)

// Create a decimal object and display its value.
let createDecimal low mid high (isNeg: bool) (scale: byte) =
    // Format the constructor for display.
    let ctor =
        $"decimal( %i{low}, %i{mid}, %i{high}, {isNeg}, {scale} )"

    let valOrExc =
        try
            // Construct the decimal value.
            let decimalNum = new decimal(low, mid, high, isNeg, scale)

            // Format and save the decimal value.
            decimalNum |> string
        with ex ->
            // Save the exception type if an exception was thrown.
            getExceptionType ex

    // Display the constructor and decimal value or exception.
    let ctorLen = 76 - valOrExc.Length

    // Display the data on one line if it will fit.
    if ctorLen > ctor.Length then
        printfn $"{ctor.PadRight ctorLen}{valOrExc}"

    // Otherwise, display the data on two lines.
    else
        printfn $"{ctor}"
        printfn $"{valOrExc,76}"

printfn 
    """This example of the decimal(int, int, int, bool, byte) 
constructor generates the following output.
"""
printfn "%-38s%38s" "Constructor" "Value or Exception"
printfn "%-38s%38s" "-----------" "------------------"

// Construct decimal objects from the component fields.
createDecimal 0 0 0 false 0uy
createDecimal 0 0 0 false 27uy
createDecimal 0 0 0 true 0uy
createDecimal 1000000000 0 0 false 0uy
createDecimal 0 1000000000 0 false 0uy
createDecimal 0 0 1000000000 false 0uy
createDecimal 1000000000 1000000000 1000000000 false 0uy
createDecimal -1 -1 -1 false 0uy
createDecimal -1 -1 -1 true 0uy
createDecimal -1 -1 -1 false 15uy
createDecimal -1 -1 -1 false 28uy
createDecimal -1 -1 -1 false 29uy
createDecimal Int32.MaxValue 0 0 false 18uy
createDecimal Int32.MaxValue 0 0 false 28uy
createDecimal Int32.MaxValue 0 0 true 28uy


// This example of the decimal(int, int, int, bool, byte)
// constructor generates the following output.
//
// Constructor                                               Value or Exception
// -----------                                               ------------------
// decimal( 0, 0, 0, False, 0 )                                               0
// decimal( 0, 0, 0, False, 27 )                                              0
// decimal( 0, 0, 0, True, 0 )                                                0
// decimal( 1000000000, 0, 0, False, 0 )                             1000000000
// decimal( 0, 1000000000, 0, False, 0 )                    4294967296000000000
// decimal( 0, 0, 1000000000, False, 0 )          18446744073709551616000000000
// decimal( 1000000000, 1000000000, 1000000000, False, 0 )
//                                                18446744078004518913000000000
// decimal( -1, -1, -1, False, 0 )                79228162514264337593543950335
// decimal( -1, -1, -1, True, 0 )                -79228162514264337593543950335
// decimal( -1, -1, -1, False, 15 )              79228162514264.337593543950335
// decimal( -1, -1, -1, False, 28 )              7.9228162514264337593543950335
// decimal( -1, -1, -1, False, 29 )                 ArgumentOutOfRangeException
// decimal( 2147483647, 0, 0, False, 18 )                  0.000000002147483647
// decimal( 2147483647, 0, 0, False, 28 )        0.0000000000000000002147483647
// decimal( 2147483647, 0, 0, True, 28 )        -0.0000000000000000002147483647
' Example of the Decimal( Integer, Integer, Integer, Boolean, Byte ) 
' constructor.
Module DecimalCtorIIIBByDemo

    ' Get the exception type name; remove the namespace prefix.
    Function GetExceptionType( ex As Exception ) As String

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function

    ' Create a Decimal object and display its value.
    Sub CreateDecimal( low As Integer, mid As Integer, _
        high As Integer, isNeg As Boolean, scale as Byte )

        ' Format the constructor for display.
        Dim ctor As String = String.Format( _
            "Decimal( {0}, {1}, {2}, {3}, {4} )", _
            low, mid, high, isNeg, scale )
        Dim valOrExc As String

        ' Construct the Decimal value.
        Try
            Dim decimalNum As New Decimal( _
                low, mid, high, isNeg, scale )

            ' Format and save the Decimal value.
            valOrExc = decimalNum.ToString( )

        ' Save the exception type if an exception was thrown.
        Catch ex As Exception
            valOrExc =  GetExceptionType( ex ) 
        End Try

        ' Display the constructor and Decimal value or exception.
        Dim ctorLen = 76 - valOrExc.Length
        If ctorLen > ctor.Length Then

            ' Display the data on one line if it will fit.
            Console.WriteLine( "{0}{1}", ctor.PadRight( ctorLen ), _
                valOrExc )

        ' Otherwise, display the data on two lines.
        Else
            Console.WriteLine( "{0}", ctor )
            Console.WriteLine( "{0,76}", valOrExc )
        End If
    End Sub
    
    Sub Main( )

        Console.WriteLine( _
            "This example of the Decimal( Integer, Integer, " & _
            "Integer, Boolean, Byte ) " & vbCrLf & "constructor " & _
            "generates the following output." & vbCrLf )
        Console.WriteLine( "{0,-38}{1,38}", "Constructor", _
            "Value or Exception" )
        Console.WriteLine( "{0,-38}{1,38}", "-----------", _
            "------------------" )

        ' Construct Decimal objects from the component fields.
        CreateDecimal( 0, 0, 0, False, 0 )                
        CreateDecimal( 0, 0, 0, False, 27 )                
        CreateDecimal( 0, 0, 0, True, 0 )                
        CreateDecimal( 1000000000, 0, 0, False, 0 )                
        CreateDecimal( 0, 1000000000, 0, False, 0 )                
        CreateDecimal( 0, 0, 1000000000, False, 0 )                
        CreateDecimal( 1000000000, 1000000000, 1000000000, False, 0 )
        CreateDecimal( -1, -1, -1, False, 0 )                
        CreateDecimal( -1, -1, -1, True, 0 )                
        CreateDecimal( -1, -1, -1, False, 15 )                
        CreateDecimal( -1, -1, -1, False, 28 )                
        CreateDecimal( -1, -1, -1, False, 29 )                
        CreateDecimal( Integer.MaxValue, 0, 0, False, 18 )                
        CreateDecimal( Integer.MaxValue, 0, 0, False, 28 )                
        CreateDecimal( Integer.MaxValue, 0, 0, True, 28 )                
    End Sub 
End Module 

' This example of the Decimal( Integer, Integer, Integer, Boolean, Byte )
' constructor generates the following output.
' 
' Constructor                                               Value or Exception
' -----------                                               ------------------
' Decimal( 0, 0, 0, False, 0 )                                               0
' Decimal( 0, 0, 0, False, 27 )                                              0
' Decimal( 0, 0, 0, True, 0 )                                                0
' Decimal( 1000000000, 0, 0, False, 0 )                             1000000000
' Decimal( 0, 1000000000, 0, False, 0 )                    4294967296000000000
' Decimal( 0, 0, 1000000000, False, 0 )          18446744073709551616000000000
' Decimal( 1000000000, 1000000000, 1000000000, False, 0 )
'                                                18446744078004518913000000000
' Decimal( -1, -1, -1, False, 0 )                79228162514264337593543950335
' Decimal( -1, -1, -1, True, 0 )                -79228162514264337593543950335
' Decimal( -1, -1, -1, False, 15 )              79228162514264.337593543950335
' Decimal( -1, -1, -1, False, 28 )              7.9228162514264337593543950335
' Decimal( -1, -1, -1, False, 29 )                 ArgumentOutOfRangeException
' Decimal( 2147483647, 0, 0, False, 18 )                  0.000000002147483647
' Decimal( 2147483647, 0, 0, False, 28 )        0.0000000000000000002147483647
' Decimal( 2147483647, 0, 0, True, 28 )        -0.0000000000000000002147483647

Im folgenden Beispiel wird die GetBits Methode zum Abrufen der Komponententeile eines Arrays verwendet. Anschließend wird dieses Array im Aufruf des Decimal(Int32, Int32, Int32, Boolean, Byte) Konstruktors verwendet, um einen neuen Decimal Wert instanziieren zu können.

using System;

public class Example
{
   public static void Main()
   {
      Decimal[] values = { 1234.96m, -1234.96m };
      foreach (var value in values) {
         int[] parts = Decimal.GetBits(value);
         bool sign = (parts[3] & 0x80000000) != 0;

         byte scale = (byte) ((parts[3] >> 16) & 0x7F);
         Decimal newValue = new Decimal(parts[0], parts[1], parts[2], sign, scale);
         Console.WriteLine("{0} --> {1}", value, newValue);
      }
   }
}
// The example displays the following output:
//       1234.96 --> 1234.96
//       -1234.96 --> -1234.96
open System

let values = [ 1234.96m; -1234.96m ]
for value in values do
    let parts = Decimal.GetBits value
    let sign = (parts[3] &&& 0x80000000) <> 0

    let scale = (parts[3] >>> 16) &&& 0x7F |> byte
    let newValue = Decimal(parts[0], parts[1], parts[2], sign, scale)
    printfn $"{value} --> {newValue}"

// The example displays the following output:
//       1234.96 --> 1234.96
//       -1234.96 --> -1234.96
Module Example
   Public Sub Main()
      Dim values() As Decimal = { 1234.96d, -1234.96d }
      For Each value In values
         Dim parts() = Decimal.GetBits(value)
         Dim sign As Boolean = (parts(3) And &h80000000) <> 0
         Dim scale As Byte = CByte((parts(3) >> 16) And &H7F)
   
         Dim newValue As New Decimal(parts(0), parts(1), parts(2), sign, scale)    
         Console.WriteLine("{0} --> {1}", value, newValue)
      Next   
   End Sub
End Module
' The example displays the following output:
'    1234.96 --> 1234.96
'    -1234.96 --> -1234.96

Hinweise

Die binäre Darstellung einer Decimal Zahl besteht aus einem 1-Bit-Zeichen, einer 96-Bit-ganzzahligen Zahl und einem Skalierungsfaktor, der zum Dividieren der ganzzahligen Zahl verwendet wird, und geben Sie an, welcher Teil der Zahl eine Dezimalzahl ist. Der Skalierungsfaktor ist implizit die Zahl 10, die auf ein Exponent von 0 bis 28 erhöht wird.

Gilt für: