Export (0) Print
Expand All

Decimal.ToInt32 Method

Converts the value of the specified Decimal to the equivalent 32-bit signed integer.

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

public static int ToInt32(
	decimal d
)

Parameters

d
Type: System.Decimal

The Decimal value to convert.

Return Value

Type: System.Int32
A 32-bit signed integer equivalent to the value of d.

ExceptionCondition
OverflowException

d is less than Int32.MinValue or greater than Int32.MaxValue.

The return value is the integral part of the decimal value; fractional digits are truncated.

The following code example converts Decimal numbers to Int32 values using the ToInt32 method.

// Example of the decimal.ToInt32 and decimal.ToUInt32 methods. 
using System;

class DecimalToU_Int32Demo
{
    const string formatter = "{0,17}{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 DecimalToU_Int32( decimal argument )
    {
        object Int32Value;
        object UInt32Value;

        // Convert the argument to an int value. 
        try
        {
            Int32Value = decimal.ToInt32( argument );
        }
        catch( Exception ex )
        {
            Int32Value = GetExceptionType( ex );
        }

        // Convert the argument to a uint value. 
        try
        {
            UInt32Value = decimal.ToUInt32( argument );
        }
        catch( Exception ex )
        {
            UInt32Value = GetExceptionType( ex );
        }

        Console.WriteLine( formatter, argument, 
            Int32Value, UInt32Value );
    }

    public static void Main( )
    {
        Console.WriteLine( "This example of the \n" +
            "  decimal.ToInt32( decimal ) and \n" +
            "  decimal.ToUInt32( decimal ) \nmethods " +
            "generates the following output. It \ndisplays " +
            "several converted decimal values.\n" );
        Console.WriteLine( formatter, "decimal argument", 
            "int/exception", "uint/exception" );
        Console.WriteLine( formatter, "----------------", 
            "-------------", "--------------" );

        // Convert decimal values and display the results.
        DecimalToU_Int32( 123M );
        DecimalToU_Int32( new decimal( 123000, 0, 0, false, 3 ) );
        DecimalToU_Int32( 123.999M );
        DecimalToU_Int32( 4294967295.999M );
        DecimalToU_Int32( 4294967296M );
        DecimalToU_Int32( 2147483647.999M );
        DecimalToU_Int32( 2147483648M );
        DecimalToU_Int32( - 0.999M );
        DecimalToU_Int32( - 1M );
        DecimalToU_Int32( - 2147483648.999M );
        DecimalToU_Int32( - 2147483649M );
    }
}

/*
This example of the
  decimal.ToInt32( decimal ) and
  decimal.ToUInt32( decimal )
methods generates the following output. It
displays several converted decimal values.

 decimal argument      int/exception     uint/exception
 ----------------      -------------     --------------
              123                123                123
          123.000                123                123
          123.999                123                123
   4294967295.999  OverflowException         4294967295
       4294967296  OverflowException  OverflowException
   2147483647.999         2147483647         2147483647
       2147483648  OverflowException         2147483648
           -0.999                  0                  0
               -1                 -1  OverflowException
  -2147483648.999        -2147483648  OverflowException
      -2147483649  OverflowException  OverflowException
*/

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Community Additions

ADD
Show:
© 2014 Microsoft