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Convert.ToUInt64 Method (SByte)

Converts the value of the specified 8-bit signed integer to the equivalent 64-bit unsigned integer.

This API is not CLS-compliant. 

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

[CLSCompliantAttribute(false)]
public static ulong ToUInt64(
	sbyte value
)

Parameters

value
Type: System.SByte

The 8-bit signed integer to convert.

Return Value

Type: System.UInt64
A 64-bit unsigned integer that is equivalent to value.

ExceptionCondition
OverflowException

value is less than zero.

The following example attempts to convert each element in a signed byte array to an unsigned long integer.

sbyte[] numbers = { SByte.MinValue, -1, 0, 10, SByte.MaxValue };
ulong result;

foreach (sbyte number in numbers)
{
   try {
      result = Convert.ToUInt64(number);
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.",
                        number.GetType().Name, number,
                        result.GetType().Name, result);
   }
   catch (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the UInt64 type.",
                        number.GetType().Name, number);
   }   
}
// The example displays the following output: 
//    The SByte value -128 is outside the range of the UInt64 type. 
//    The SByte value -1 is outside the range of the UInt64 type. 
//    Converted the SByte value 0 to the UInt64 value 0. 
//    Converted the SByte value 10 to the UInt64 value 10. 
//    Converted the SByte value 127 to the UInt64 value 127.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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