Decimal Narrowing Conversion (Decimal to UInt64)
Defines an explicit conversion of a Decimal to a 64-bit unsigned integer.
This API is not CLS-compliant.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- value
-
Type:
System.Decimal
The value to convert.
| Exception | Condition |
|---|---|
| OverflowException | value is negative or greater than UInt64.MaxValue. |
This operator supports the explicit conversion of a Decimal to a UInt64. The syntax for such explicit conversions is language-dependent, and individual language compilers can provide different implementations and return different results. The example illustrates the different return values when you explicitly convert a Decimal value to a UInt64 value by using C# and Visual Basic. To perform a conversion that is independent of language, you can call the ToUInt64 or the Convert.ToUInt64(Decimal) method.
The following example converts Decimal numbers to UInt64 values by using the explicit Decimal to UInt64 conversion.
' Example of the explicit conversions from Decimal to Long and ' Decimal to ULong. Module DecimalToU_Int64Demo Const formatter As String = "{0,25}{1,22}{2,22}" ' Convert the decimal argument catch exceptions that are thrown. Public Sub DecimalToU_Int64(argument As Decimal) Dim Int64Value As Object Dim UInt64Value As Object ' Convert the argument to a long value. Try Int64Value = CLng(argument) Catch ex As Exception Int64Value = ex.GetType().Name End Try ' Convert the argument to a ulong value. Try UInt64Value = CULng(argument) Catch ex As Exception UInt64Value = ex.GetType().Name End Try Console.WriteLine(formatter, argument, _ Int64Value, UInt64Value) End Sub Public Sub Main( ) Console.WriteLine( formatter, "Decimal argument", _ "Long/Exception", "ULong/Exception" ) Console.WriteLine( formatter, "----------------", _ "--------------", "---------------" ) ' Convert decimal values and display the results. DecimalToU_Int64(123d) DecimalToU_Int64(New Decimal(123000, 0, 0, False, 3)) DecimalToU_Int64(123.999d) DecimalToU_Int64(18446744073709551615.999d) DecimalToU_Int64(18446744073709551616d) DecimalToU_Int64(9223372036854775807.999d) DecimalToU_Int64(9223372036854775808d) DecimalToU_Int64(-0.999d) DecimalToU_Int64(-1d) DecimalToU_Int64(-9223372036854775808.999d) DecimalToU_Int64(-9223372036854775809d) End Sub End Module ' The example displays the following output to the console: ' Decimal argument Long/Exception ULong/Exception ' ---------------- -------------- --------------- ' 123 123 123 ' 123.000 123 123 ' 123.999 124 124 ' 18446744073709551615.999 OverflowException OverflowException ' 18446744073709551616 OverflowException OverflowException ' 9223372036854775807.999 OverflowException 9223372036854775808 ' 9223372036854775808 OverflowException 9223372036854775808 ' -0.999 -1 OverflowException ' -1 -1 OverflowException ' -9223372036854775808.999 OverflowException OverflowException ' -9223372036854775809 OverflowException OverflowException
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