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Convert.ToDouble Method (UInt64)

Converts the value of the specified 64-bit unsigned integer to an equivalent double-precision floating-point number.

This API is not CLS-compliant. 

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

[CLSCompliantAttribute(false)]
public static double ToDouble(
	ulong value
)

Parameters

value
Type: System.UInt64
The 64-bit unsigned integer to convert.

Return Value

Type: System.Double
A double-precision floating-point number that is equivalent to value.

The following example converts each element in an array of UInt64 values to a Double value.


ulong[] numbers = { UInt64.MinValue, 121, 12345, UInt64.MaxValue };
double result;

foreach (ulong number in numbers)
{
   result = Convert.ToDouble(number);
   Console.WriteLine("Converted the UInt64 value {0} to {1}.",
                     number, result);
}   
// The example displays the following output:
//    Converted the UInt64 value 0 to 0.
//    Converted the UInt64 value 121 to 121.
//    Converted the UInt64 value 12345 to 12345.
//    Converted the UInt64 value 18446744073709551615 to 1.84467440737096E+19.


.NET Framework

Supported in: 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

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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