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Convert.ToSByte Method (Single)

Converts the value of the specified single-precision floating-point number to an equivalent 8-bit signed integer.

This API is not CLS-compliant. 

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

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

Parameters

value
Type: System.Single

The single-precision floating-point number to convert.

Return Value

Type: System.SByte
value, rounded to the nearest 8-bit signed integer. If value is halfway between two whole numbers, the even number is returned; that is, 4.5 is converted to 4, and 5.5 is converted to 6.

ExceptionCondition
OverflowException

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

The following example attempts to convert each element in an array of Single values to a signed byte.

Dim values() As Object = { True, -12, 163, 935, "x"c, "104", "103.0", "-1", _
                           "1.00e2", "One", 1.00e2}
Dim result As SByte 
For Each value As Object In values
   Try
      result = Convert.ToSByte(value)
      Console.WriteLine("Converted the {0} value {1} to the {2} value {3}.", _
                        value.GetType().Name, value, _
                        result.GetType().Name, result)
   Catch e As OverflowException
      Console.WriteLine("The {0} value {1} is outside the range of the SByte type.", _
                        value.GetType().Name, value)
   Catch e As FormatException
      Console.WriteLine("The {0} value {1} is not in a recognizable format.", _
                        value.GetType().Name, value)
   Catch e As InvalidCastException
      Console.WriteLine("No conversion to a Byte exists for the {0} value {1}.", _
                        value.GetType().Name, value)

   End Try 
Next                            
' The example displays the following output: 
'    Converted the Boolean value True to the SByte value 1. 
'    Converted the Int32 value -12 to the SByte value -12. 
'    The Int32 value 163 is outside the range of the SByte type. 
'    The Int32 value 935 is outside the range of the SByte type. 
'    Converted the Char value x to the SByte value 120. 
'    Converted the String value 104 to the SByte value 104. 
'    The String value 103.0 is not in a recognizable format. 
'    Converted the String value -1 to the SByte value -1. 
'    The String value 1.00e2 is not in a recognizable format. 
'    The String value One is not in a recognizable format. 
'    Converted the Double value 100 to the SByte value 100.

.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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