Decimal Explicit Conversion (Single to Decimal)
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Converts a single-precision floating-point number to a Decimal.
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public Shared Narrowing Operator CType ( _
value As Single _
) As Decimal
public static explicit operator decimal (
float value
)
Parameters
- value
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.
Exceptions
| Exception | Condition |
|---|---|
| OverflowException | value is less than MinValue or greater than MaxValue. -or- value is Single.NaN, Single.PositiveInfinity, or Single.NegativeInfinity. |
Examples
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.
Module Example
Const formatter As String = "{0,16:E7}{1,33}"
' Get the exception type name; remove the namespace prefix.
Function GetExceptionType(ByVal 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(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal argument As Single)
Dim decValue As Object
' Convert the Single argument to a Decimal value.
Try
decValue = Decimal.op_Explicit(argument)
Catch ex As Exception
decValue = GetExceptionType(ex)
End Try
' Display the Decimal.
outputBlock.Text &= String.Format(formatter, argument, decValue) & vbCrLf
End Sub
Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)
outputBlock.Text &= _
"This example of the explicit conversion from Single " & _
"to Decimal " & vbCrLf & "generates the following " & _
"output." & vbCrLf & vbCrLf
outputBlock.Text &= String.Format(formatter, "Single argument", _
"Decimal value") & vbCrLf
outputBlock.Text &= String.Format(formatter, "---------------", _
"-------------") & vbCrLf
' Convert Single values and display the results.
DecimalFromSingle(outputBlock, 1.2345E-30)
DecimalFromSingle(outputBlock, 1.2345E-26)
DecimalFromSingle(outputBlock, 1.23456E-22)
DecimalFromSingle(outputBlock, 0.00000000000123456)
DecimalFromSingle(outputBlock, 1.234567)
DecimalFromSingle(outputBlock, 1234567000000.0)
DecimalFromSingle(outputBlock, 1.2345678E+28)
DecimalFromSingle(outputBlock, 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
// Example of the explicit conversion from float to decimal.
using System;
class Example
{
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(System.Windows.Controls.TextBlock outputBlock, float argument)
{
object decValue;
// Convert the float argument to a decimal value.
try
{
decValue = (decimal)argument;
}
catch (Exception ex)
{
decValue = GetExceptionType(ex);
}
outputBlock.Text += String.Format(formatter, argument, decValue) + "\n";
}
public static void Demo(System.Windows.Controls.TextBlock outputBlock)
{
outputBlock.Text +=
"This example of the explicit conversion from float " +
"to decimal \ngenerates the following output.\n" + "\n";
outputBlock.Text += String.Format(formatter, "float argument",
"decimal value") + "\n";
outputBlock.Text += String.Format(formatter, "--------------",
"-------------") + "\n";
// Convert float values and display the results.
DecimalFromSingle(outputBlock, 1.2345E-30F);
DecimalFromSingle(outputBlock, 1.2345E-26F);
DecimalFromSingle(outputBlock, 1.23456E-22F);
DecimalFromSingle(outputBlock, 1.23456E-12F);
DecimalFromSingle(outputBlock, 1.234567F);
DecimalFromSingle(outputBlock, 1.234567E+12F);
DecimalFromSingle(outputBlock, 1.2345678E+28F);
DecimalFromSingle(outputBlock, 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
*/
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.