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Visual Studio 2008

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

## Syntax

```public static decimal operator +(
decimal d1,
decimal d2
)
```

#### Parameters

d1
Type: System.Decimal

A Decimal.

d2
Type: System.Decimal

A Decimal.

#### Return Value

Type: System.Decimal
The Decimal result of adding d1 and d2.

## Exceptions

ExceptionCondition
OverflowException

The return value is less than MinValue or greater than MaxValue.

## Examples

The following code example creates several pairs of Decimal values and calculates their sums with the Addition operator.

```// Example of the decimal addition and subtraction operators.
using System;

{
const string dataFmt = "   {0,-18}{1,31}" ;

// Display decimal parameters and their sum and difference.
static void ShowDecimalSumDiff( decimal Left, decimal Right )
{
Console.WriteLine( );
Console.WriteLine( dataFmt, "decimal Left", Left );
Console.WriteLine( dataFmt, "decimal Right", Right );
Console.WriteLine( dataFmt, "Left + Right",
Left + Right );
Console.WriteLine( dataFmt, "Left - Right",
Left - Right );
}

static void Main( )
{
Console.WriteLine( "This example of the decimal " +
"addition and subtraction operators \ngenerates the " +
"following output. It displays the sum and \n" +
"difference of several pairs of decimal objects."  );

// Create pairs of decimal objects.
ShowDecimalSumDiff(
new decimal( 1230000000, 0, 0, false, 7 ),
0.0012300M );
ShowDecimalSumDiff( 123.456789M, 0.006789M );
ShowDecimalSumDiff( 12345678900000000M,
0.00000000123456789M );
ShowDecimalSumDiff( 123456789.0123456789M,
123456789.1123456789M );
}
}

/*
This example of the decimal addition and subtraction operators
generates the following output. It displays the sum and
difference of several pairs of decimal objects.

decimal Left                          123.0000000
decimal Right                           0.0012300
Left + Right                          123.0012300
Left - Right                          122.9987700

decimal Left                           123.456789
decimal Right                            0.006789
Left + Right                           123.463578
Left - Right                           123.450000

decimal Left                    12345678900000000
decimal Right                 0.00000000123456789
Left + Right       12345678900000000.000000001235
Left - Right       12345678899999999.999999998765

decimal Left                 123456789.0123456789
decimal Right                123456789.1123456789
Left + Right                 246913578.1246913578
Left - Right                        -0.1000000000
*/
```

## Platforms

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.

## Version Information

#### .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