Decimal Explicit Conversion (Decimal to SByte)
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Converts a Decimal to an 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
Public Shared Narrowing Operator CType ( _
value As Decimal _
) As SByte
public static explicit operator sbyte (
decimal value
)
Parameters
- value
Type: System.Decimal
A Decimal to convert.
Return Value
Type: System.SByte
An 8-bit signed integer that represents the converted Decimal.
Exceptions
| Exception | Condition |
|---|---|
| OverflowException | value is less than SByte.MinValue or greater than SByte.MaxValue. |
Remarks
This operator supports the explicit conversion of a Decimal to a SByte. 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 Byte and an SByte value by using C# and Visual Basic. To perform a conversion that is independent of language, you can call the ToSByte method or the Convert.ToSByte(Decimal) method.
Examples
The following code example converts Decimal numbers to SByte values using the explicit Decimal to SByte conversion.
' Example of the explicit conversions from Decimal to Byte and
' Decimal to SByte.
'
' Option Strict must be on, or compiler will attempt to perform explicit
' conversions without an explicit conversion method call.
Option Strict On
Module Example
Const formatter As String = "{0,16}{1,19}{2,19}"
' Convert the decimal argument; catch exceptions that are thrown.
Public 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 = CByte(argument)
Catch ex As Exception
sByteValue = ex.GetType().Name
End Try
' Convert the argument to a byte value.
Try
byteValue = CType(argument, Byte)
Catch ex As Exception
byteValue = ex.GetType().Name
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(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
' The example displays the following output:
' Decimal argument SByte/Exception Byte/Exception
' ---------------- --------------- --------------
' 78 78 78
' 78.000 78 78
' 78.999 79 79
' 255.999 OverflowException OverflowException
' 256 OverflowException OverflowException
' 127.999 128 128
' 128 128 128
' -0.999 OverflowException OverflowException
' -1 OverflowException OverflowException
' -128.999 OverflowException OverflowException
' -129 OverflowException OverflowException
// Example of the explicit conversions from decimal to byte and
// decimal to sbyte.
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 = (sbyte)argument;
}
catch (Exception ex)
{
SByteValue = GetExceptionType(ex);
}
// Convert the argument to a byte value.
try
{
ByteValue = (byte)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 explicit conversions from decimal " +
"to sbyte \nand decimal to byte generates the following " +
"output. It displays \nseveral 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 explicit conversions from decimal to sbyte
and decimal to byte 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.