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.

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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