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Decimal.ToInt32 Method

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

Namespace:  System
Assemblies:   mscorlib (in mscorlib.dll)
  System.Runtime (in System.Runtime.dll)

public static int ToInt32(
	decimal d
)

Parameters

d
Type: System.Decimal

The decimal number 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 example uses the ToInt32 method to convert decimal numbers to Int32 values.

using System;

class Example
{
   public static void Main( )
   {
      decimal[] values = { 123m, new decimal(123000, 0, 0, false, 3), 
                           123.999m, 4294967295.999m, 4294967296m,
                           4294967296m, 2147483647.999m, 2147483648m, 
                           -0.999m, -1m, -2147483648.999m, -2147483649m };

      foreach (var value in values) {
         try {
            int number = Decimal.ToInt32(value);
            Console.WriteLine("{0} --> {1}", value, number);       
         }
         catch (OverflowException e)
         {
             Console.WriteLine("{0}: {1}", e.GetType().Name, value);
         }   
      }
   }
}
// The example displays the following output: 
//      123 --> 123 
//      123.000 --> 123 
//      123.999 --> 123 
//      OverflowException: 4294967295.999 
//      OverflowException: 4294967296 
//      OverflowException: 4294967296 
//      2147483647.999 --> 2147483647 
//      OverflowException: 2147483648 
//      -0.999 --> 0 
//      -1 --> -1 
//      -2147483648.999 --> -2147483648 
//      OverflowException: -2147483649

.NET Framework

Supported in: 4.6, 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

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

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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