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 Shared Function ToInt32 (
	d As Decimal
) As Integer


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

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 Narrowing(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.

Module Example
   Public Sub Main()
      Dim values() As Decimal = { 123d, New Decimal(123000, 0, 0, false, 3), 
                                  123.999d, 4294967295.999d, 4294967296d,
                                  4294967296d, 2147483647.999d, 2147483648d, 
                                  -0.999d, -1d, -2147483648.999d, -2147483649d }

      For Each value In values
            Dim number As Integer = Decimal.ToInt32(value)
            Console.WriteLine("{0} --> {1}", value, number)       
         Catch e As OverflowException
             Console.WriteLine("{0}: {1}", e.GetType().Name, value)
         End Try   
   End Sub
End Module
' 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 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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