Export (0) Print
Expand All
This topic has not yet been rated - Rate this topic

Convert.ToSByte Method (Object)

Converts the value of the specified object to an 8-bit signed integer.

This API is not CLS-compliant. 

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
[CLSCompliantAttribute(false)]
public static sbyte ToSByte(
	Object value
)

Parameters

value
Type: System.Object

An object that implements the IConvertible interface, or null.

Return Value

Type: System.SByte
An 8-bit signed integer that is equivalent to value, or zero if value is null.
ExceptionCondition
FormatException

value is not in an appropriate format.

InvalidCastException

value does not implement the IConvertible interface.

-or-

The conversion is not supported.

OverflowException

value represents a number that is less than SByte.MinValue or greater than SByte.MaxValue.

The return value is the result of invoking the IConvertible.ToSByte method of the underlying type of value.

The following example attempts to convert each element in an object array to a signed byte.

object[] values = { true, -12, 163, 935, 'x', "104", "103.0", "-1",
                    "1.00e2", "One", 1.00e2};
sbyte result;

foreach (object value 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 (OverflowException) {
      Console.WriteLine("The {0} value {1} is outside the range of the SByte type.",
                        value.GetType().Name, value);
   }
   catch (FormatException) {
      Console.WriteLine("The {0} value {1} is not in a recognizable format.",
                        value.GetType().Name, value);
   }
   catch (InvalidCastException) {
      Console.WriteLine("No conversion to a Byte exists for the {0} value {1}.",
                        value.GetType().Name, value);

   }
}                           
// 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: 4.5.1, 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.

Did you find this helpful?
(1500 characters remaining)
Thank you for your feedback
Show:
© 2014 Microsoft. All rights reserved.