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Convert.ToInt16 Method (Object)

Converts the value of the specified object to a 16-bit signed integer.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)
public static short ToInt16(
	Object value
)

Parameters

value
Type: System.Object
An object that implements the IConvertible interface, or null.

Return Value

Type: System.Int16
A 16-bit signed integer that is equivalent to value, or zero if value is null.
ExceptionCondition
FormatException

value is not in an appropriate format for an Int16 type.

InvalidCastException

value does not implement the IConvertible interface.

-or-

The conversion is not supported.

OverflowException

value represents a number that is less than Int16.MinValue or greater than Int16.MaxValue.

If value is not null, this method wraps a call to the IConvertible.ToInt16 implementation of the underlying type of value.

The following example attempts to convert each element in an object array to a 16-bit signed integer.


object[] values= { true, -12, 163, 935, 'x', new DateTime(2009, 5, 12),
                   "104", "103.0", "-1", "1.00e2", "One", 1.00e2};
short result;

foreach (object value in values)
{
   try {
      result = Convert.ToInt16(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 Int16 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 an Int16 exists for the {0} value {1}.",
                        value.GetType().Name, value);
   }
}                           
// The example displays the following output:
//    Converted the Boolean value True to the Int16 value 1.
//    Converted the Int32 value -12 to the Int16 value -12.
//    Converted the Int32 value 163 to the Int16 value 163.
//    Converted the Int32 value 935 to the Int16 value 935.
//    Converted the Char value x to the Int16 value 120.
//    No conversion to an Int16 exists for the DateTime value 5/12/2009 12:00:00 AM.
//    Converted the String value 104 to the Int16 value 104.
//    The String value 103.0 is not in a recognizable format.
//    Converted the String value -1 to the Int16 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 Int16 value 100.


.NET Framework

Supported in: 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

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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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