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Decimal.Explicit Operator

Converts a single-precision floating-point number to a Decimal.

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

Public Shared Narrowing Operator CType ( _
	value As Single _
) As Decimal
Dim input As Single 
Dim output As Decimal 

output = CType(input, Decimal)


Type: System.Single

A single-precision floating-point number.

Return Value

Type: System.Decimal
A Decimal that represents the converted single-precision floating point number.


value is less than MinValue or greater than MaxValue.


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

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

' Example of the explicit conversion from Single to Decimal. 
Imports System
Imports Microsoft.VisualBasic

Module DecimalFromSingleDemo

    Const formatter As String = "{0,16:E7}{1,33}" 

    ' Get the exception type name; remove the namespace prefix. 
    Function GetExceptionType( ex As Exception ) As String 

        Dim exceptionType   As String = ex.GetType( ).ToString( )
        Return exceptionType.Substring( _
            exceptionType.LastIndexOf( "."c ) + 1 )
    End Function 

    ' Convert the Single argument; catch exceptions that are thrown. 
    Sub DecimalFromSingle( argument As Single )

        Dim decValue    As Object

        ' Convert the Single argument to a Decimal value. 
            decValue = Decimal.op_Explicit( argument )
        Catch ex As Exception
            decValue = GetExceptionType( ex )
        End Try 

        ' Display the Decimal.
        Console.WriteLine( formatter, argument, decValue )
    End Sub  

    Sub Main( )

        Console.WriteLine( _
            "This example of the explicit conversion from Single " & _
            "to Decimal " & vbCrLf & "generates the following " & _
            "output." & vbCrLf )
        Console.WriteLine( formatter, "Single argument", _
            "Decimal value" )
        Console.WriteLine( formatter, "---------------", _
            "-------------" )

        ' Convert Single values and display the results.
        DecimalFromSingle( 1.2345E-30 )
        DecimalFromSingle( 1.2345E-26 )
        DecimalFromSingle( 1.23456E-22 )
        DecimalFromSingle( 1.23456E-12 )
        DecimalFromSingle( 1.234567 )
        DecimalFromSingle( 1.234567E+12 )
        DecimalFromSingle( 1.2345678E+28 ) 
        DecimalFromSingle( 1.2345678E+30 )
    End Sub  
End Module 

' This example of the explicit conversion from Single to Decimal 
' generates the following output. 
'  Single 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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0