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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
)
public static int ToInt32 (
	Decimal d
)
public static function ToInt32 (
	d : decimal
) : int

Parameters

d

The Decimal value to convert.

Return Value

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

Exception typeCondition

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 namespace System;
#define formatter "{0,17}{1,19}{2,19}"

// Get the exception type name; remove the namespace prefix.
String^ GetExceptionType( Exception^ ex )
{
   String^ exceptionType = ex->GetType()->ToString();
   return exceptionType->Substring( exceptionType->LastIndexOf( '.' ) + 1 );
}


// Convert the Decimal argument; catch exceptions that are thrown.
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 an unsigned int value.
   try
   {
      UInt32Value = Decimal::ToUInt32( argument );
   }
   catch ( Exception^ ex ) 
   {
      UInt32Value = GetExceptionType( ex );
   }

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

int 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", "unsigned int" );
   Console::WriteLine( formatter, "----------------", "-------------", "------------" );
   
   // Convert Decimal values and display the results.
   DecimalToU_Int32( Decimal::Parse(  "123" ) );
   DecimalToU_Int32( Decimal(123000,0,0,false,3) );
   DecimalToU_Int32( Decimal::Parse(  "123.999" ) );
   DecimalToU_Int32( Decimal::Parse(  "4294967295.999" ) );
   DecimalToU_Int32( Decimal::Parse(  "4294967296" ) );
   DecimalToU_Int32( Decimal::Parse(  "2147483647.999" ) );
   DecimalToU_Int32( Decimal::Parse(  "2147483648" ) );
   DecimalToU_Int32( Decimal::Parse(  "-0.999" ) );
   DecimalToU_Int32( Decimal::Parse(  "-1" ) );
   DecimalToU_Int32( Decimal::Parse(  "-2147483648.999" ) );
   DecimalToU_Int32( Decimal::Parse(  "-2147483649" ) );
}

/*
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       unsigned int
 ----------------      -------------       ------------
              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
*/

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

class DecimalToU_Int32Demo
{
    private static final String formatter = "{0,17}{1,19}{2,19}";
   
   // Get the exception type name; remove the namespace prefix.
    public static String GetExceptionType(System.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(System.Decimal argument) 
    {
        Object int32Value;
        Object uint32Value;
          
        // Convert the argument to an int value.
        try {
            int32Value = (System.Int32)System.Decimal.ToInt32(argument);
        }
        catch(System.Exception  ex) {
            int32Value = GetExceptionType(ex);
        }
          
        // Convert the argument to a uint value.
        try {
            uint32Value = System.Decimal.ToUInt32(argument);
        }
        catch(System.Exception  ex) {
            uint32Value = GetExceptionType(ex);
        }
        Console.WriteLine(formatter, argument, int32Value, uint32Value);
    }
   
    public static void main(String[] args1)
    {
        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(new System.Decimal(123));
        DecimalToU_Int32(new System.Decimal(123000, 0, 0, false, (ubyte)3));
        DecimalToU_Int32(new System.Decimal(123.999));
        DecimalToU_Int32(new System.Decimal(4294967295.999));
        DecimalToU_Int32(new System.Decimal(4294967296F));
        DecimalToU_Int32(new System.Decimal(2147483647.999));
        DecimalToU_Int32(new System.Decimal(2147483648F));
        DecimalToU_Int32(new System.Decimal(-0.999));
        DecimalToU_Int32(new System.Decimal(-1));
        DecimalToU_Int32(new System.Decimal(-2147483648.999));
        DecimalToU_Int32(new System.Decimal(-2147483649F));
   }
}

/*
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
       4294967000  OverflowException         4294967000
   2147483647.999         2147483647         2147483647
       2147484000  OverflowException         2147484000
           -0.999                  0                  0
               -1                 -1  OverflowException
  -2147483648.999        -2147483648  OverflowException
      -2147484000  OverflowException  OverflowException
*/

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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