%= Operator (C# Reference)

The modulus assignment operator.

Remarks

An expression using the %= assignment operator, such as

x %= y

is equivalent to

x = x % y

except that x is only evaluated once. The % operator is predefined for numeric types to compute the remainder after division.

The %= operator cannot be overloaded directly, but user-defined types can overload the % operator (see operator (C# Reference)).

Example

class Test2
{
    static void Main()
    {
        int a = 5;
        a %= 3;
        Console.WriteLine(a);
    }
}
// Output: 2

See Also

Reference

C# Operators

Concepts

C# Programming Guide

Other Resources

C# Reference