• Article

Decimal.ToSByte Method

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Converts the value of the specified Decimal to the equivalent 8-bit signed integer.

This API is not CLS-compliant. The CLS-compliant alternative is ToInt16(Decimal).

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

Syntax

'Declaration
<CLSCompliantAttribute(False)> _
Public Shared Function ToSByte ( _
    value As Decimal _
) As SByte

[CLSCompliantAttribute(false)]
public static sbyte ToSByte(
    decimal value
)

Parameters

Return Value

Type: System.SByte
An 8-bit signed integer equivalent to value.

Exceptions

Exception Condition
OverflowException

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

Examples

The following code example converts Decimal numbers to SByte values using the ToSByte method.

' Example of the Decimal.ToSByte and Decimal.ToByte methods.

Module Example

   Dim formatter As String = "{0,16}{1,19}{2,19}"

   ' 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 Decimal argument; catch exceptions that are thrown.
   Sub DecimalToS_Byte(ByVal outputBlock As System.Windows.Controls.TextBlock, ByVal argument As Decimal)

      Dim SByteValue As Object
      Dim ByteValue As Object

      ' Convert the argument to an SByte value.
      Try
         SByteValue = Decimal.ToSByte(argument)
      Catch ex As Exception
         SByteValue = GetExceptionType(ex)
      End Try

      ' Convert the argument to a Byte value.
      Try
         ByteValue = Decimal.ToByte(argument)
      Catch ex As Exception
         ByteValue = GetExceptionType(ex)
      End Try

      outputBlock.Text &= String.Format(formatter, argument, _
          SByteValue, ByteValue) & vbCrLf
   End Sub

   Public Sub Demo(ByVal outputBlock As System.Windows.Controls.TextBlock)

      outputBlock.Text &= String.Format("This example of the " & vbCrLf & _
          "  Decimal.ToSByte( Decimal ) and " & vbCrLf & _
          "  Decimal.ToByte( Decimal ) " & vbCrLf & "methods " & _
          "generates the following output. It " & vbCrLf & _
          "displays several converted Decimal values." & vbCrLf) & vbCrLf
      outputBlock.Text &= String.Format(formatter, "Decimal argument", _
          "SByte/exception", "Byte/exception") & vbCrLf
      outputBlock.Text &= String.Format(formatter, "----------------", _
          "---------------", "--------------") & vbCrLf

      ' Convert Decimal values and display the results.
      DecimalToS_Byte(outputBlock, 78D)
      DecimalToS_Byte(outputBlock, New Decimal(78000, 0, 0, False, 3))
      DecimalToS_Byte(outputBlock, 78.999D)
      DecimalToS_Byte(outputBlock, 255.999D)
      DecimalToS_Byte(outputBlock, 256D)
      DecimalToS_Byte(outputBlock, 127.999D)
      DecimalToS_Byte(outputBlock, 128D)
      DecimalToS_Byte(outputBlock, -0.999D)
      DecimalToS_Byte(outputBlock, -1D)
      DecimalToS_Byte(outputBlock, -128.999D)
      DecimalToS_Byte(outputBlock, -129D)
   End Sub
End Module

' This example of the
'   Decimal.ToSByte( Decimal ) and
'   Decimal.ToByte( Decimal )
' methods generates the following output. It
' displays several converted Decimal values.
' 
' Decimal argument    SByte/exception     Byte/exception
' ----------------    ---------------     --------------
'               78                 78                 78
'           78.000                 78                 78
'           78.999                 78                 78
'          255.999  OverflowException                255
'              256  OverflowException  OverflowException
'          127.999                127                127
'              128  OverflowException                128
'           -0.999                  0                  0
'               -1                 -1  OverflowException
'         -128.999               -128  OverflowException
'             -129  OverflowException  OverflowException

// Example of the decimal.ToSByte and decimal.ToByte methods.
using System;

class Example
{
   const string formatter = "{0,16}{1,19}{2,19}";

   // 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 decimal argument; catch exceptions that are thrown.
   public static void DecimalToS_Byte(System.Windows.Controls.TextBlock outputBlock, decimal argument)
   {
      object SByteValue;
      object ByteValue;

      // Convert the argument to an sbyte value.
      try
      {
         SByteValue = decimal.ToSByte(argument);
      }
      catch (Exception ex)
      {
         SByteValue = GetExceptionType(ex);
      }

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

      outputBlock.Text += String.Format(formatter, argument,
          SByteValue, ByteValue) + "\n";
   }

   public static void Demo(System.Windows.Controls.TextBlock outputBlock)
   {
      outputBlock.Text += String.Format("This example of the \n" +
          "  decimal.ToSByte( decimal ) and \n" +
          "  decimal.ToByte( decimal ) \nmethods " +
          "generates the following output. It \ndisplays " +
          "several converted decimal values.\n") + "\n";
      outputBlock.Text += String.Format(formatter, "decimal argument",
          "sbyte/exception", "byte/exception") + "\n";
      outputBlock.Text += String.Format(formatter, "----------------",
          "---------------", "--------------") + "\n";

      // Convert decimal values and display the results.
      DecimalToS_Byte(outputBlock, 78M);
      DecimalToS_Byte(outputBlock, new decimal(78000, 0, 0, false, 3));
      DecimalToS_Byte(outputBlock, 78.999M);
      DecimalToS_Byte(outputBlock, 255.999M);
      DecimalToS_Byte(outputBlock, 256M);
      DecimalToS_Byte(outputBlock, 127.999M);
      DecimalToS_Byte(outputBlock, 128M);
      DecimalToS_Byte(outputBlock, -0.999M);
      DecimalToS_Byte(outputBlock, -1M);
      DecimalToS_Byte(outputBlock, -128.999M);
      DecimalToS_Byte(outputBlock, -129M);
   }
}

/*
This example of the
  decimal.ToSByte( decimal ) and
  decimal.ToByte( decimal )
methods generates the following output. It
displays several converted decimal values.

decimal argument    sbyte/exception     byte/exception
----------------    ---------------     --------------
              78                 78                 78
          78.000                 78                 78
          78.999                 78                 78
         255.999  OverflowException                255
             256  OverflowException  OverflowException
         127.999                127                127
             128  OverflowException                128
          -0.999                  0                  0
              -1                 -1  OverflowException
        -128.999               -128  OverflowException
            -129  OverflowException  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.