UInt32.MaxValue フィールド

定義

UInt32 の最大有効値を表します。Represents the largest possible value of UInt32. このフィールドは定数です。This field is constant.

public: System::UInt32 MaxValue = 4294967295;
public const uint MaxValue = 4294967295;
val mutable MaxValue : uint32
Public Const MaxValue As UInteger  = 4294967295

フィールド値

次の例では、MinValue フィールドと MaxValue フィールドを使用して、型変換を実行する前に Int64 値が UInt32 型の範囲内にあることを確認します。The following example uses the MinValue and MaxValue fields to verify that an Int64 value is within the range of the UInt32 type before it performs a type conversion. この検証により、実行時に OverflowException が発生しません。This verification prevents an OverflowException at run time.

long longValue = long.MaxValue / 2;
uint integerValue; 

if (longValue <= uint.MaxValue && 
    longValue >= uint.MinValue)
{    
   integerValue = (uint) longValue;
   Console.WriteLine("Converted long integer value to {0:n0}.", 
                     integerValue);
}   
else
{
   uint rangeLimit;
   string relationship;
   
   if (longValue > uint.MaxValue)
   {
      rangeLimit = uint.MaxValue;
      relationship = "greater";
   }   
   else
   {
      rangeLimit = uint.MinValue;
      relationship = "less";
   }       

   Console.WriteLine("Conversion failure: {0:n0} is {1} than {2:n0}",  
                     longValue, 
                     relationship, 
                     rangeLimit);
}       
Dim longValue As Long = Long.MaxValue \ 2
Dim integerValue As UInteger 

If longValue <= UInteger.MaxValue AndAlso _
   longValue >= UInteger.MinValue Then
   integerValue = CUInt(longValue)
   Console.WriteLine("Converted long integer value to {0:n0}.", _
                     integerValue)
Else
   Dim rangeLimit As UInteger
   Dim relationship As String
   
   If longValue > UInteger.MaxValue Then
      rangeLimit = UInteger.MaxValue
      relationship = "greater"
   Else
      rangeLimit = UInteger.MinValue
      relationship = "less"
   End If       

   Console.WriteLine("Conversion failure: {0:n0} is {1} than {2:n0}.", _ 
                     longValue, _
                     relationship, _
                     rangeLimit)
End If       

注釈

この定数の値は4294967295です。つまり、16進数の0xFFFFFFFF です。The value of this constant is 4,294,967,295; that is, hexadecimal 0xFFFFFFFF.

適用対象

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