ToInt32 Method

Decimal.ToInt32 Method (Decimal)

 

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 number to convert.

Return Value

Type: System.Int32

A 32-bit signed integer equivalent to the value of d.

Exception Condition
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.

You can also convert a Decimal value to a 32-bit integer by using the Explicit(Decimal to Int32) assignment operator. Because the operator performs a narrowing conversion, you must use a casting operator in C# or a conversion function in Visual Basic.

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

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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