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Decimal Explicit Conversion (Single to Decimal)

Defines an explicit conversion of a single-precision floating-point number to a Decimal.

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

public static explicit operator decimal (
	float value
)

Parameters

value
Type: System.Single

The single-precision floating-point number to convert.

Return Value

Type: System.Decimal
The converted single-precision floating point number.

ExceptionCondition
OverflowException

value is less than Decimal.MinValue or greater than Decimal.MaxValue.

-or-

value is Single.NaN, Single.PositiveInfinity, or Single.NegativeInfinity.

The following example converts Single values to Decimal numbers by using the Single to Decimal conversion. This conversion requires the op_Explicit operator in Visual Basic.

// Example of the explicit conversion from float to decimal. 
using System;

class DecimalFromSingleDemo
{
    const string formatter = "{0,16:E7}{1,33}";

    // Get the exception type name; remove the namespace prefix. 
    public static string GetExceptionType( Exception ex )
    {
        string exceptionType = ex.GetType( ).ToString( );
        return exceptionType.Substring( 
            exceptionType.LastIndexOf( '.' ) + 1 );
    }

    // Convert the float argument; catch exceptions that are thrown. 
    public static void DecimalFromSingle( float argument )
    {
        object decValue;

        // Convert the float argument to a decimal value. 
        try
        {
            decValue = (decimal)argument;
        }
        catch( Exception ex )
        {
            decValue = GetExceptionType( ex );
        }

        Console.WriteLine( formatter, argument, decValue );
    }

    public static void Main( )
    {
        Console.WriteLine( 
            "This example of the explicit conversion from float " +
            "to decimal \ngenerates the following output.\n" );
        Console.WriteLine( formatter, "float argument", 
            "decimal value" );
        Console.WriteLine( formatter, "--------------", 
            "-------------" );

        // Convert float values and display the results.
        DecimalFromSingle( 1.2345E-30F );
        DecimalFromSingle( 1.2345E-26F );
        DecimalFromSingle( 1.23456E-22F );
        DecimalFromSingle( 1.23456E-12F );
        DecimalFromSingle( 1.234567F );
        DecimalFromSingle( 1.234567E+12F );
        DecimalFromSingle( 1.2345678E+28F );
        DecimalFromSingle( 1.2345678E+30F );
    }
}

/*
This example of the explicit conversion from float to decimal
generates the following output.

  float argument                    decimal value
  --------------                    -------------
  1.2345000E-030                                0
  1.2345000E-026   0.0000000000000000000000000123
  1.2345600E-022    0.000000000000000000000123456
  1.2345600E-012              0.00000000000123456
  1.2345671E+000                         1.234567
  1.2345670E+012                    1234567000000
  1.2345678E+028    12345680000000000000000000000
  1.2345678E+030                OverflowException
*/

.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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