TimeSpan.CompareTo Método
Definição
Importante
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Sobrecargas
| CompareTo(Object) |
Compara esta instância a um objeto especificado e retorna um inteiro que indica se essa instância é mais curta, igual ou mais longa que o objeto especificado. |
| CompareTo(TimeSpan) |
Compara esta instância com um objeto TimeSpan especificado e retorna um inteiro que indica se esta instância é menor que, igual a ou maior que o objeto TimeSpan. |
Comentários
As duas sobrecargas do CompareTo método retornam um número assinado que indica o valor relativo dessa instância e o value argumento , conforme mostrado na tabela a seguir.
| Valor | Descrição |
|---|---|
| Menor que zero | Esta instância é menor do que value. |
| Zero | Essa instância é igual a value. |
| Maior que zero | Esta instância é maior que value. |
CompareTo(Object)
Compara esta instância a um objeto especificado e retorna um inteiro que indica se essa instância é mais curta, igual ou mais longa que o objeto especificado.
public:
virtual int CompareTo(System::Object ^ value);public int CompareTo (object? value);public int CompareTo (object value);abstract member CompareTo : obj -> int
override this.CompareTo : obj -> intPublic Function CompareTo (value As Object) As IntegerParâmetros
- value
- Object
Um objeto a ser comparado ou null.
Retornos
Um dos valores a seguir.
| Valor | Descrição |
|---|---|
| -1 | Esta instância é menor do que value.
|
| 0 | Esta instância é igual a value.
|
| 1 | Esta instância é maior que value ou value é null.
|
Implementações
Exceções
value não é um TimeSpan.
Exemplos
O exemplo a seguir compara várias TimeSpan estruturas e outros objetos a uma estrutura de referência TimeSpan usando o CompareTo método .
// Example of the TimeSpan::CompareTo( Object* ) and
// TimeSpan::Equals( Object* ) methods.
using namespace System;
// Compare the TimeSpan to the Object parameters,
// and display the Object parameters with the results.
void CompTimeSpanToObject( TimeSpan Left, Object^ Right, String^ RightText )
{
Console::WriteLine( "{0,-33}{1}", String::Concat( "Object: ", RightText ), Right );
Console::WriteLine( "{0,-33}{1}", "Left.Equals( Object )", Left.Equals( Right ) );
Console::Write( "{0,-33}", "Left.CompareTo( Object )" );
// Catch the exception if CompareTo( ) throws one.
try
{
Console::WriteLine( "{0}\n", Left.CompareTo( Right ) );
}
catch ( Exception^ ex )
{
Console::WriteLine( "Error: {0}\n", ex->Message );
}
}
int main()
{
TimeSpan Left = TimeSpan(0,5,0);
Console::WriteLine( "This example of the TimeSpan::Equals( Object* ) "
"and \nTimeSpan::CompareTo( Object* ) methods generates "
"the \nfollowing output by creating several different "
"TimeSpan \nobjects and comparing them with a "
"5-minute TimeSpan.\n" );
Console::WriteLine( "{0,-33}{1}\n", "Left: TimeSpan( 0, 5, 0 )", Left );
// Create objects to compare with a 5-minute TimeSpan.
CompTimeSpanToObject( Left, TimeSpan(0,0,300), "TimeSpan( 0, 0, 300 )" );
CompTimeSpanToObject( Left, TimeSpan(0,5,1), "TimeSpan( 0, 5, 1 )" );
CompTimeSpanToObject( Left, TimeSpan(0,5,-1), "TimeSpan( 0, 5, -1 )" );
CompTimeSpanToObject( Left, TimeSpan(3000000000), "TimeSpan( 3000000000 )" );
CompTimeSpanToObject( Left, 3000000000L, "__int64 3000000000L" );
CompTimeSpanToObject( Left, "00:05:00", "String \"00:05:00\"" );
}
/*
This example of the TimeSpan::Equals( Object* ) and
TimeSpan::CompareTo( Object* ) methods generates the
following output by creating several different TimeSpan
objects and comparing them with a 5-minute TimeSpan.
Left: TimeSpan( 0, 5, 0 ) 00:05:00
Object: TimeSpan( 0, 0, 300 ) 00:05:00
Left.Equals( Object ) True
Left.CompareTo( Object ) 0
Object: TimeSpan( 0, 5, 1 ) 00:05:01
Left.Equals( Object ) False
Left.CompareTo( Object ) -1
Object: TimeSpan( 0, 5, -1 ) 00:04:59
Left.Equals( Object ) False
Left.CompareTo( Object ) 1
Object: TimeSpan( 3000000000 ) 00:05:00
Left.Equals( Object ) True
Left.CompareTo( Object ) 0
Object: __int64 3000000000L 3000000000
Left.Equals( Object ) False
Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
Object: String "00:05:00" 00:05:00
Left.Equals( Object ) False
Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
*/
// Example of the TimeSpan.CompareTo( Object ) and
// TimeSpan.Equals( Object ) methods.
using System;
class TSCompToEqualsObjDemo
{
// Compare the TimeSpan to the Object parameters,
// and display the Object parameters with the results.
static void CompTimeSpanToObject( TimeSpan Left, object Right,
string RightText )
{
Console.WriteLine( "{0,-33}{1}", "Object: " + RightText,
Right );
Console.WriteLine( "{0,-33}{1}", "Left.Equals( Object )",
Left.Equals( Right ) );
Console.Write( "{0,-33}", "Left.CompareTo( Object )" );
// Catch the exception if CompareTo( ) throws one.
try
{
Console.WriteLine( "{0}\n", Left.CompareTo( Right ) );
}
catch( Exception ex )
{
Console.WriteLine( "Error: {0}\n", ex.Message );
}
}
static void Main( )
{
TimeSpan Left = new TimeSpan( 0, 5, 0 );
Console.WriteLine(
"This example of the TimeSpan.Equals( Object ) " +
"and \nTimeSpan.CompareTo( Object ) methods generates " +
"the \nfollowing output by creating several different " +
"TimeSpan \nobjects and comparing them with a " +
"5-minute TimeSpan.\n" );
Console.WriteLine( "{0,-33}{1}\n",
"Left: TimeSpan( 0, 5, 0 )", Left );
// Create objects to compare with a 5-minute TimeSpan.
CompTimeSpanToObject( Left, new TimeSpan( 0, 0, 300 ),
"TimeSpan( 0, 0, 300 )" );
CompTimeSpanToObject( Left, new TimeSpan( 0, 5, 1 ),
"TimeSpan( 0, 5, 1 )" );
CompTimeSpanToObject( Left, new TimeSpan( 0, 5, -1 ),
"TimeSpan( 0, 5, -1 )" );
CompTimeSpanToObject( Left, new TimeSpan( 3000000000 ),
"TimeSpan( 3000000000 )" );
CompTimeSpanToObject( Left, 3000000000L,
"long 3000000000L" );
CompTimeSpanToObject( Left, "00:05:00",
"string \"00:05:00\"" );
}
}
/*
This example of the TimeSpan.Equals( Object ) and
TimeSpan.CompareTo( Object ) methods generates the
following output by creating several different TimeSpan
objects and comparing them with a 5-minute TimeSpan.
Left: TimeSpan( 0, 5, 0 ) 00:05:00
Object: TimeSpan( 0, 0, 300 ) 00:05:00
Left.Equals( Object ) True
Left.CompareTo( Object ) 0
Object: TimeSpan( 0, 5, 1 ) 00:05:01
Left.Equals( Object ) False
Left.CompareTo( Object ) -1
Object: TimeSpan( 0, 5, -1 ) 00:04:59
Left.Equals( Object ) False
Left.CompareTo( Object ) 1
Object: TimeSpan( 3000000000 ) 00:05:00
Left.Equals( Object ) True
Left.CompareTo( Object ) 0
Object: long 3000000000L 3000000000
Left.Equals( Object ) False
Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
Object: string "00:05:00" 00:05:00
Left.Equals( Object ) False
Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
*/
// Example of the TimeSpan.CompareTo( Object ) and
// TimeSpan.Equals( Object ) methods.
open System
// Compare the TimeSpan to the Object parameters,
// and display the Object parameters with the results.
let compTimeSpanToObject (left: TimeSpan) (right: obj) rightText =
printfn $"""{"Object: " + rightText,-33}{right}"""
printfn $"""{"Left.Equals( Object )",-33}{left.Equals right}"""
printf "%-33s" "Left.CompareTo( Object )"
// Catch the exception if CompareTo( ) throws one.
try
printfn $"{left.CompareTo right}\n"
with ex ->
printfn $"Error: {ex.Message}\n"
let left = TimeSpan(0, 5, 0)
printfn "This example of the TimeSpan.Equals( Object ) and \nTimeSpan.CompareTo( Object ) methods generates the \nfollowing output by creating several different TimeSpan \nobjects and comparing them with a 5-minute TimeSpan.\n"
printfn $"""{"Left: TimeSpan( 0, 5, 0 )",-33}{left}\n"""
// Create objects to compare with a 5-minute TimeSpan.
compTimeSpanToObject left (TimeSpan(0, 0, 300))
"TimeSpan( 0, 0, 300 )"
compTimeSpanToObject left (TimeSpan(0, 5, 1))
"TimeSpan( 0, 5, 1 )"
compTimeSpanToObject left (TimeSpan(0, 5, -1))
"TimeSpan( 0, 5, -1 )"
compTimeSpanToObject left (TimeSpan 3000000000L )
"TimeSpan( 3000000000 )"
compTimeSpanToObject left 3000000000L "long 3000000000L"
compTimeSpanToObject left "00:05:00" "string \"00:05:00\""
(*
This example of the TimeSpan.Equals( Object ) and
TimeSpan.CompareTo( Object ) methods generates the
following output by creating several different TimeSpan
objects and comparing them with a 5-minute TimeSpan.
Left: TimeSpan( 0, 5, 0 ) 00:05:00
Object: TimeSpan( 0, 0, 300 ) 00:05:00
Left.Equals( Object ) True
Left.CompareTo( Object ) 0
Object: TimeSpan( 0, 5, 1 ) 00:05:01
Left.Equals( Object ) False
Left.CompareTo( Object ) -1
Object: TimeSpan( 0, 5, -1 ) 00:04:59
Left.Equals( Object ) False
Left.CompareTo( Object ) 1
Object: TimeSpan( 3000000000 ) 00:05:00
Left.Equals( Object ) True
Left.CompareTo( Object ) 0
Object: long 3000000000L 3000000000
Left.Equals( Object ) False
Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
Object: string "00:05:00" 00:05:00
Left.Equals( Object ) False
Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
*)
' Example of the TimeSpan.CompareTo( Object ) and
' TimeSpan.Equals( Object ) methods.
Module TSCompToEqualsObjDemo
' Compare the TimeSpan to the Object parameters,
' and display the Object parameters with the results.
Sub CompTimeSpanToObject( Left as TimeSpan, Right as Object, _
RightText as String )
Console.WriteLine( "{0,-33}{1}", "Object: " & RightText, _
Right )
Console.WriteLine( "{0,-33}{1}", "Left.Equals( Object )", _
Left.Equals( Right ) )
Console.Write( "{0,-33}", "Left.CompareTo( Object )" )
' Catch the exception if CompareTo( ) throws one.
Try
Console.WriteLine( "{0}" & vbCrLf, _
Left.CompareTo( Right ) )
Catch ex As Exception
Console.WriteLine( "Error: {0}" & vbCrLf, ex.Message )
End Try
End Sub
Sub Main( )
Dim Left as new TimeSpan( 0, 5, 0 )
Console.WriteLine( _
"This example of the TimeSpan.Equals( Object ) " & _
"and " & vbCrLf & "TimeSpan.CompareTo( Object ) " & _
"methods generates the " & vbCrLf & _
"following output by creating several " & _
"different TimeSpan " & vbCrLf & "objects and " & _
"comparing them with a 5-minute TimeSpan." & vbCrLf )
Console.WriteLine( "{0,-33}{1}" & vbCrLf, _
"Left: TimeSpan( 0, 5, 0 )", Left )
' Create objects to compare with a 5-minute TimeSpan.
CompTimeSpanToObject( Left, new TimeSpan( 0, 0, 300 ), _
"TimeSpan( 0, 0, 300 )" )
CompTimeSpanToObject( Left, new TimeSpan( 0, 5, 1 ), _
"TimeSpan( 0, 5, 1 )" )
CompTimeSpanToObject( Left, new TimeSpan( 0, 5, -1 ), _
"TimeSpan( 0, 5, -1 )" )
CompTimeSpanToObject( Left, new TimeSpan( 3000000000 ), _
"TimeSpan( 3000000000 )" )
CompTimeSpanToObject( Left, 3000000000L, "Long 3000000000L" )
CompTimeSpanToObject( Left, "00:05:00", _
"String ""00:05:00""" )
End Sub
End Module
' This example of the TimeSpan.Equals( Object ) and
' TimeSpan.CompareTo( Object ) methods generates the
' following output by creating several different TimeSpan
' objects and comparing them with a 5-minute TimeSpan.
'
' Left: TimeSpan( 0, 5, 0 ) 00:05:00
'
' Object: TimeSpan( 0, 0, 300 ) 00:05:00
' Left.Equals( Object ) True
' Left.CompareTo( Object ) 0
'
' Object: TimeSpan( 0, 5, 1 ) 00:05:01
' Left.Equals( Object ) False
' Left.CompareTo( Object ) -1
'
' Object: TimeSpan( 0, 5, -1 ) 00:04:59
' Left.Equals( Object ) False
' Left.CompareTo( Object ) 1
'
' Object: TimeSpan( 3000000000 ) 00:05:00
' Left.Equals( Object ) True
' Left.CompareTo( Object ) 0
'
' Object: Long 3000000000L 3000000000
' Left.Equals( Object ) False
' Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
'
' Object: String "00:05:00" 00:05:00
' Left.Equals( Object ) False
' Left.CompareTo( Object ) Error: Object must be of type TimeSpan.
Comentários
Qualquer instância de TimeSpan, independentemente de seu valor, é considerada maior que null.
O value parâmetro deve ser uma instância de TimeSpan ou null; caso contrário, uma exceção é gerada.
Confira também
Aplica-se a
CompareTo(TimeSpan)
public:
virtual int CompareTo(TimeSpan value);public int CompareTo (TimeSpan value);abstract member CompareTo : TimeSpan -> int
override this.CompareTo : TimeSpan -> intPublic Function CompareTo (value As TimeSpan) As IntegerParâmetros
- value
- TimeSpan
Um objeto a ser comparado com a instância.
Retornos
Um número assinado que indica os valores relativos dessa instância e de value.
| Valor | Descrição |
|---|---|
| Um inteiro negativo | Esta instância é menor do que value.
|
| Zero | Esta instância é igual a value.
|
| Um inteiro positivo | Esta instância é maior que value.
|
Implementações
Exemplos
O exemplo a seguir demonstra versões genéricas e não genéricas do CompareTo método para vários tipos de valor e referência.
// This example demonstrates the two versions of the
// CompareTo method for several base types.
// The general version takes a parameter of type Object, while the specific
// version takes a type-specific parameter, such as Boolean, Int32, or Double.
using namespace System;
void Show( String^ caption, Object^ var1, Object^ var2, int resultGeneric, int resultNonGeneric )
{
String^ relation;
Console::Write( caption );
if ( resultGeneric == resultNonGeneric )
{
if ( resultGeneric < 0 )
relation = "less than";
else
if ( resultGeneric > 0 )
relation = "greater than";
else
relation = "equal to";
Console::WriteLine( "{0} is {1} {2}", var1, relation, var2 );
}
// The following condition will never occur because the generic and non-generic
// CompareTo methods are equivalent.
else
{
Console::WriteLine( "Generic CompareTo = {0}; non-generic CompareTo = {1}", resultGeneric, resultNonGeneric );
}
}
int main()
{
String^ nl = Environment::NewLine;
String^ msg = "{0}The following is the result of using the generic and non-generic{0}"
"versions of the CompareTo method for several base types:{0}";
Object^ obj; // An Object used to insure CompareTo(Object) is called.
DateTime now = DateTime::Now;
// Time span = 11 days, 22 hours, 33 minutes, 44 seconds
TimeSpan tsX = TimeSpan(11,22,33,44);
// Version = 1.2.333.4
Version^ versX = gcnew Version( "1.2.333.4" );
// Guid = CA761232-ED42-11CE-BACD-00AA0057B223
Guid guidX = Guid( "{CA761232-ED42-11CE-BACD-00AA0057B223}");
Boolean a1 = true,a2 = true;
Byte b1 = 1,b2 = 1;
Int16 c1 = -2,c2 = 2;
Int32 d1 = 3,d2 = 3;
Int64 e1 = 4,e2 = -4;
Decimal f1 = Decimal(-5.5), f2 = Decimal(5.5);
Single g1 = 6.6f,g2 = 6.6f;
Double h1 = 7.7,h2 = -7.7;
Char i1 = 'A',i2 = 'A';
String^ j1 = "abc", ^j2 = "abc";
DateTime k1 = now,k2 = now;
TimeSpan l1 = tsX,l2 = tsX;
Version^ m1 = versX, ^m2 = gcnew Version( "2.0" );
Guid n1 = guidX,n2 = guidX;
// The following types are not CLS-compliant.
SByte w1 = 8,w2 = 8;
UInt16 x1 = 9,x2 = 9;
UInt32 y1 = 10,y2 = 10;
UInt64 z1 = 11,z2 = 11;
//
Console::WriteLine( msg, nl );
try
{
Show( "Boolean: ", a1, a2, a1.CompareTo( a2 ), a1.CompareTo( a2 ) );
Show( "Byte: ", b1, b2, b1.CompareTo( b2 ), b1.CompareTo( b2 ) );
Show( "Int16: ", c1, c2, c1.CompareTo( c2 ), c1.CompareTo( c2 ) );
Show( "Int32: ", d1, d2, d1.CompareTo( d2 ), d1.CompareTo( d2 ) );
Show( "Int64: ", e1, e2, e1.CompareTo( e2 ), e1.CompareTo( e2 ) );
Show( "Decimal: ", f1, f2, f1.CompareTo( f2 ), f1.CompareTo( f2 ) );
Show( "Single: ", g1, g2, g1.CompareTo( g2 ), g1.CompareTo( g2 ) );
Show( "Double: ", h1, h2, h1.CompareTo( h2 ), h1.CompareTo( h2 ) );
Show( "Char: ", i1, i2, i1.CompareTo( i2 ), i1.CompareTo( i2 ) );
// Use an anonymous object to hide the String object.
obj = j2;
Show( "String: ", j1, j2, j1->CompareTo( j2 ), j1->CompareTo( obj ) );
Show( "DateTime:", k1, k2, k1.CompareTo( k2 ), k1.CompareTo( k2 ) );
Show( "TimeSpan: ", l1, l2, l1.CompareTo( l2 ), l1.CompareTo( l2 ) );
// Use an anonymous object to hide the Version object.
obj = m2;
Show( "Version: ", m1, m2, m1->CompareTo( m2 ), m1->CompareTo( obj ) );
Show( "Guid: ", n1, n2, n1.CompareTo( n2 ), n1.CompareTo( n2 ) );
//
Console::WriteLine( "{0}The following types are not CLS-compliant:", nl );
Show( "SByte: ", w1, w2, w1.CompareTo( w2 ), w1.CompareTo( w2 ) );
Show( "UInt16: ", x1, x2, x1.CompareTo( x2 ), x1.CompareTo( x2 ) );
Show( "UInt32: ", y1, y2, y1.CompareTo( y2 ), y1.CompareTo( y2 ) );
Show( "UInt64: ", z1, z2, z1.CompareTo( z2 ), z1.CompareTo( z2 ) );
}
catch ( Exception^ e )
{
Console::WriteLine( e );
}
}
// This example displays the following output:
//
// The following is the result of using the generic and non-generic versions of the
// CompareTo method for several base types:
//
// Boolean: True is equal to True
// Byte: 1 is equal to 1
// Int16: -2 is less than 2
// Int32: 3 is equal to 3
// Int64: 4 is greater than -4
// Decimal: -5.5 is less than 5.5
// Single: 6.6 is equal to 6.6
// Double: 7.7 is greater than -7.7
// Char: A is equal to A
// String: abc is equal to abc
// DateTime: 12/1/2003 5:37:46 PM is equal to 12/1/2003 5:37:46 PM
// TimeSpan: 11.22:33:44 is equal to 11.22:33:44
// Version: 1.2.333.4 is less than 2.0
// Guid: ca761232-ed42-11ce-bacd-00aa0057b223 is equal to ca761232-ed42-11ce-bacd-00
// aa0057b223
//
// The following types are not CLS-compliant:
// SByte: 8 is equal to 8
// UInt16: 9 is equal to 9
// UInt32: 10 is equal to 10
// UInt64: 11 is equal to 11
// This example demonstrates the generic and non-generic versions of the
// CompareTo method for several base types.
// The non-generic version takes a parameter of type Object, while the generic
// version takes a type-specific parameter, such as Boolean, Int32, or Double.
using System;
class Sample
{
public static void Main()
{
string nl = Environment.NewLine;
string msg = "{0}The following is the result of using the generic and non-generic{0}" +
"versions of the CompareTo method for several base types:{0}";
DateTime now = DateTime.Now;
// Time span = 11 days, 22 hours, 33 minutes, 44 seconds
TimeSpan tsX = new TimeSpan(11, 22, 33, 44);
// Version = 1.2.333.4
Version versX = new Version("1.2.333.4");
// Guid = CA761232-ED42-11CE-BACD-00AA0057B223
Guid guidX = new Guid("{CA761232-ED42-11CE-BACD-00AA0057B223}");
Boolean a1 = true, a2 = true;
Byte b1 = 1, b2 = 1;
Int16 c1 = -2, c2 = 2;
Int32 d1 = 3, d2 = 3;
Int64 e1 = 4, e2 = -4;
Decimal f1 = -5.5m, f2 = 5.5m;
Single g1 = 6.6f, g2 = 6.6f;
Double h1 = 7.7d, h2 = -7.7d;
Char i1 = 'A', i2 = 'A';
String j1 = "abc", j2 = "abc";
DateTime k1 = now, k2 = now;
TimeSpan l1 = tsX, l2 = tsX;
Version m1 = versX, m2 = new Version("2.0");
Guid n1 = guidX, n2 = guidX;
// The following types are not CLS-compliant.
SByte w1 = 8, w2 = 8;
UInt16 x1 = 9, x2 = 9;
UInt32 y1 = 10, y2 = 10;
UInt64 z1 = 11, z2 = 11;
//
Console.WriteLine(msg, nl);
try
{
// The second and third Show method call parameters are automatically boxed because
// the second and third Show method declaration arguments expect type Object.
Show("Boolean: ", a1, a2, a1.CompareTo(a2), a1.CompareTo((Object)a2));
Show("Byte: ", b1, b2, b1.CompareTo(b2), b1.CompareTo((Object)b2));
Show("Int16: ", c1, c2, c1.CompareTo(c2), c1.CompareTo((Object)c2));
Show("Int32: ", d1, d2, d1.CompareTo(d2), d1.CompareTo((Object)d2));
Show("Int64: ", e1, e2, e1.CompareTo(e2), e1.CompareTo((Object)e2));
Show("Decimal: ", f1, f2, f1.CompareTo(f2), f1.CompareTo((Object)f2));
Show("Single: ", g1, g2, g1.CompareTo(g2), g1.CompareTo((Object)g2));
Show("Double: ", h1, h2, h1.CompareTo(h2), h1.CompareTo((Object)h2));
Show("Char: ", i1, i2, i1.CompareTo(i2), i1.CompareTo((Object)i2));
Show("String: ", j1, j2, j1.CompareTo(j2), j1.CompareTo((Object)j2));
Show("DateTime: ", k1, k2, k1.CompareTo(k2), k1.CompareTo((Object)k2));
Show("TimeSpan: ", l1, l2, l1.CompareTo(l2), l1.CompareTo((Object)l2));
Show("Version: ", m1, m2, m1.CompareTo(m2), m1.CompareTo((Object)m2));
Show("Guid: ", n1, n2, n1.CompareTo(n2), n1.CompareTo((Object)n2));
//
Console.WriteLine("{0}The following types are not CLS-compliant:", nl);
Show("SByte: ", w1, w2, w1.CompareTo(w2), w1.CompareTo((Object)w2));
Show("UInt16: ", x1, x2, x1.CompareTo(x2), x1.CompareTo((Object)x2));
Show("UInt32: ", y1, y2, y1.CompareTo(y2), y1.CompareTo((Object)y2));
Show("UInt64: ", z1, z2, z1.CompareTo(z2), z1.CompareTo((Object)z2));
}
catch (Exception e)
{
Console.WriteLine(e);
}
}
public static void Show(string caption, Object var1, Object var2,
int resultGeneric, int resultNonGeneric)
{
string relation;
Console.Write(caption);
if (resultGeneric == resultNonGeneric)
{
if (resultGeneric < 0) relation = "less than";
else if (resultGeneric > 0) relation = "greater than";
else relation = "equal to";
Console.WriteLine("{0} is {1} {2}", var1, relation, var2);
}
// The following condition will never occur because the generic and non-generic
// CompareTo methods are equivalent.
else
{
Console.WriteLine("Generic CompareTo = {0}; non-generic CompareTo = {1}",
resultGeneric, resultNonGeneric);
}
}
}
/*
This example produces the following results:
The following is the result of using the generic and non-generic versions of the
CompareTo method for several base types:
Boolean: True is equal to True
Byte: 1 is equal to 1
Int16: -2 is less than 2
Int32: 3 is equal to 3
Int64: 4 is greater than -4
Decimal: -5.5 is less than 5.5
Single: 6.6 is equal to 6.6
Double: 7.7 is greater than -7.7
Char: A is equal to A
String: abc is equal to abc
DateTime: 12/1/2003 5:37:46 PM is equal to 12/1/2003 5:37:46 PM
TimeSpan: 11.22:33:44 is equal to 11.22:33:44
Version: 1.2.333.4 is less than 2.0
Guid: ca761232-ed42-11ce-bacd-00aa0057b223 is equal to ca761232-ed42-11ce-bacd-00
aa0057b223
The following types are not CLS-compliant:
SByte: 8 is equal to 8
UInt16: 9 is equal to 9
UInt32: 10 is equal to 10
UInt64: 11 is equal to 11
*/
// This example demonstrates the generic and non-generic versions of the
// CompareTo method for several base types.
// The non-generic version takes a parameter of type Object, while the generic
// version takes a type-specific parameter, such as Boolean, Int32, or Double.
open System
let show caption (var1: obj) (var2: obj) resultGeneric resultNonGeneric =
printf "%s" caption
if resultGeneric = resultNonGeneric then
let relation =
if resultGeneric < 0 then "less than"
elif resultGeneric > 0 then "greater than"
else "equal to"
printfn $"{var1} is {relation} {var2}"
// The following condition will never occur because the generic and non-generic
// CompareTo methods are equivalent.
else
printfn $"Generic CompareTo = {resultGeneric} non-generic CompareTo = {resultNonGeneric}"
let now = DateTime.Now
// Time span = 11 days, 22 hours, 33 minutes, 44 seconds
let tsX = TimeSpan(11, 22, 33, 44)
// Version = 1.2.333.4
let versX = Version "1.2.333.4"
// Guid = CA761232-ED42-11CE-BACD-00AA0057B223
let guidX = Guid "{CA761232-ED42-11CE-BACD-00AA0057B223}"
let a1, a2 = true, true
let b1, b2 = 1uy, 1uy
let c1, c2 = -2s, 2s
let d1, d2 = 3, 3
let e1, e2 = 4L, -4L
let f1, f2 = -5.5m, 5.5m
let g1, g2 = 6.6f, 6.6f
let h1, h2 = 7.7, -7.7
let i1, i2 = 'A', 'A'
let j1, j2 = "abc", "abc"
let k1, k2 = now, now
let l1, l2 = tsX, tsX
let m1, m2 = versX, Version "2.0"
let n1, n2 = guidX, guidX
// The following types are not CLS-compliant.
let w1, w2 = 8y, 8y
let x1, x2 = 9us, 9us
let y1, y2 = 10u, 10u
let z1, z2 = 11uL, 11uL
printfn "\nThe following is the result of using the generic and non-generic\nversions of the CompareTo method for several base types:\n"
try
// The second and third show function call parameters are automatically boxed because
// the second and third show function declaration arguments expect type Object.
show "Boolean: " a1 a2 (a1.CompareTo a2) (a1.CompareTo (a2 :> obj))
show "Byte: " b1 b2 (b1.CompareTo b2) (b1.CompareTo (b2 :> obj))
show "Int16: " c1 c2 (c1.CompareTo c2) (c1.CompareTo (c2 :> obj))
show "Int32: " d1 d2 (d1.CompareTo d2) (d1.CompareTo (d2 :> obj))
show "Int64: " e1 e2 (e1.CompareTo e2) (e1.CompareTo (e2 :> obj))
show "Decimal: " f1 f2 (f1.CompareTo f2) (f1.CompareTo (f2 :> obj))
show "Single: " g1 g2 (g1.CompareTo g2) (g1.CompareTo (g2 :> obj))
show "Double: " h1 h2 (h1.CompareTo h2) (h1.CompareTo (h2 :> obj))
show "Char: " i1 i2 (i1.CompareTo i2) (i1.CompareTo (i2 :> obj))
show "String: " j1 j2 (j1.CompareTo j2) (j1.CompareTo (j2 :> obj))
show "DateTime: " k1 k2 (k1.CompareTo k2) (k1.CompareTo (k2 :> obj))
show "TimeSpan: " l1 l2 (l1.CompareTo l2) (l1.CompareTo (l2 :> obj))
show "Version: " m1 m2 (m1.CompareTo m2) (m1.CompareTo (m2 :> obj))
show "Guid: " n1 n2 (n1.CompareTo n2) (n1.CompareTo (n2 :> obj))
printfn "\nThe following types are not CLS-compliant:"
show "SByte: " w1 w2 (w1.CompareTo w2) (w1.CompareTo (w2 :> obj))
show "UInt16: " x1 x2 (x1.CompareTo x2) (x1.CompareTo (x2 :> obj))
show "UInt32: " y1 y2 (y1.CompareTo y2) (y1.CompareTo (y2 :> obj))
show "UInt64: " z1 z2 (z1.CompareTo z2) (z1.CompareTo (z2 :> obj))
with e -> printfn $"{e}"
// This example produces the following results:
// The following is the result of using the generic and non-generic versions of the
// CompareTo method for several base types:
// Boolean: True is equal to True
// Byte: 1 is equal to 1
// Int16: -2 is less than 2
// Int32: 3 is equal to 3
// Int64: 4 is greater than -4
// Decimal: -5.5 is less than 5.5
// Single: 6.6 is equal to 6.6
// Double: 7.7 is greater than -7.7
// Char: A is equal to A
// String: abc is equal to abc
// DateTime: 12/1/2003 5:37:46 PM is equal to 12/1/2003 5:37:46 PM
// TimeSpan: 11.22:33:44 is equal to 11.22:33:44
// Version: 1.2.333.4 is less than 2.0
// Guid: ca761232-ed42-11ce-bacd-00aa0057b223 is equal to ca761232-ed42-11ce-bacd-00
// aa0057b223
// The following types are not CLS-compliant:
// SByte: 8 is equal to 8
// UInt16: 9 is equal to 9
// UInt32: 10 is equal to 10
// UInt64: 11 is equal to 11
' This example demonstrates the generic and non-generic versions of the
' CompareTo method for several base types.
' The non-generic version takes a parameter of type Object, while the generic
' version takes a type-specific parameter, such as Boolean, Int32, or Double.
Class Sample
Public Shared Sub Main()
Dim nl As String = Environment.NewLine
Dim msg As String = _
"{0}The following is the result of using the generic and non-generic{0}" & _
"versions of the CompareTo method for several base types:{0}"
Dim now As DateTime = DateTime.Now
' Time span = 11 days, 22 hours, 33 minutes, 44 seconds
Dim tsX As New TimeSpan(11, 22, 33, 44)
' Version = 1.2.333.4
Dim versX As New Version("1.2.333.4")
' Guid = CA761232-ED42-11CE-BACD-00AA0057B223
Dim guidX As New Guid("{CA761232-ED42-11CE-BACD-00AA0057B223}")
Dim a1 As [Boolean] = True, a2 As [Boolean] = True
Dim b1 As [Byte] = 1, b2 As [Byte] = 1
Dim c1 As Int16 = -2, c2 As Int16 = 2
Dim d1 As Int32 = 3, d2 As Int32 = 3
Dim e1 As Int64 = 4, e2 As Int64 = -4
Dim f1 As [Decimal] = -5.5D, f2 As [Decimal] = 5.5D
Dim g1 As [Single] = 6.6F, g2 As [Single] = 6.6F
Dim h1 As [Double] = 7.7, h2 As [Double] = -7.7
Dim i1 As [Char] = "A"c, i2 As [Char] = "A"c
Dim j1 As String = "abc", j2 As String = "abc"
Dim k1 As DateTime = now, k2 As DateTime = now
Dim l1 As TimeSpan = tsX, l2 As TimeSpan = tsX
Dim m1 As Version = versX, m2 As New Version("2.0")
Dim n1 As Guid = guidX, n2 As Guid = guidX
' The following types are not CLS-compliant.
' SByte, UInt16, UInt32, UInt64
Console.WriteLine(msg, nl)
Try
' The second and third Show method call parameters are automatically boxed because
' the second and third Show method declaration arguments expect type Object.
Show("Boolean: ", a1, a2, a1.CompareTo(a2), a1.CompareTo(CObj(a2)))
Show("Byte: ", b1, b2, b1.CompareTo(b2), b1.CompareTo(CObj(b2)))
Show("Int16: ", c1, c2, c1.CompareTo(c2), c1.CompareTo(CObj(c2)))
Show("Int32: ", d1, d2, d1.CompareTo(d2), d1.CompareTo(CObj(d2)))
Show("Int64: ", e1, e2, e1.CompareTo(e2), e1.CompareTo(CObj(e2)))
Show("Decimal: ", f1, f2, f1.CompareTo(f2), f1.CompareTo(CObj(f2)))
Show("Single: ", g1, g2, g1.CompareTo(g2), g1.CompareTo(CObj(g2)))
Show("Double: ", h1, h2, h1.CompareTo(h2), h1.CompareTo(CObj(h2)))
Show("Char: ", i1, i2, i1.CompareTo(i2), i1.CompareTo(CObj(i2)))
Show("String: ", j1, j2, j1.CompareTo(j2), j1.CompareTo(CObj(j2)))
Show("DateTime: ", k1, k2, k1.CompareTo(k2), k1.CompareTo(CObj(k2)))
Show("TimeSpan: ", l1, l2, l1.CompareTo(l2), l1.CompareTo(CObj(l2)))
Show("Version: ", m1, m2, m1.CompareTo(m2), m1.CompareTo(CObj(m2)))
Show("Guid: ", n1, n2, n1.CompareTo(n2), n1.CompareTo(CObj(n2)))
'
Console.WriteLine("{0}The following types are not CLS-compliant:", nl)
Console.WriteLine("SByte, UInt16, UInt32, UInt64")
Catch e As Exception
Console.WriteLine(e)
End Try
End Sub
Public Shared Sub Show(caption As String, var1 As [Object], var2 As [Object], _
resultGeneric As Integer, resultNonGeneric As Integer)
Dim relation As String
Console.Write(caption)
If resultGeneric = resultNonGeneric Then
If resultGeneric < 0 Then
relation = "less than"
ElseIf resultGeneric > 0 Then
relation = "greater than"
Else
relation = "equal to"
End If
Console.WriteLine("{0} is {1} {2}", var1, relation, var2)
' The following condition will never occur because the generic and non-generic
' CompareTo methods are equivalent.
Else
Console.WriteLine("Generic CompareTo = {0}; non-generic CompareTo = {1}", _
resultGeneric, resultNonGeneric)
End If
End Sub
End Class
'
'This example produces the following results:
'
'The following is the result of using the generic and non-generic versions of the
'CompareTo method for several base types:
'
'Boolean: True is equal to True
'Byte: 1 is equal to 1
'Int16: -2 is less than 2
'Int32: 3 is equal to 3
'Int64: 4 is greater than -4
'Decimal: -5.5 is less than 5.5
'Single: 6.6 is equal to 6.6
'Double: 7.7 is greater than -7.7
'Char: A is equal to A
'String: abc is equal to abc
'DateTime: 12/1/2003 5:37:46 PM is equal to 12/1/2003 5:37:46 PM
'TimeSpan: 11.22:33:44 is equal to 11.22:33:44
'Version: 1.2.333.4 is less than 2.0
'Guid: ca761232-ed42-11ce-bacd-00aa0057b223 is equal to ca761232-ed42-11ce-bacd-00
'aa0057b223
'
'The following types are not CLS-compliant:
'SByte, UInt16, UInt32, UInt64
'
Comentários
Esse método implementa a System.IComparable<T> interface e executa um pouco melhor do que o TimeSpan.CompareTo método porque não precisa converter o value parâmetro em um objeto .
Aplica-se a
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