= Operator
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here. ArchiveDisclaimer

= Operator (C# Reference)

The assignment operator (=) stores the value of its right-hand operand in the storage location, property, or indexer denoted by its left-hand operand and returns the value as its result. The operands must be of the same type (or the right-hand operand must be implicitly convertible to the type of the left-hand operand).

The assignment operator cannot be overloaded. However, you can define implicit conversion operators for a type, which enable you to use the assignment operator with those types. For more information, see Using Conversion Operators (C# Programming Guide).

class Assignment
    static void Main()
        double x;
        int i;
        i = 5; // int to int assignment
        x = i; // implicit conversion from int to double
        i = (int)x; // needs cast
        Console.WriteLine("i is {0}, x is {1}", i, x);
        object obj = i;
        Console.WriteLine("boxed value = {0}, type is {1}",
                  obj, obj.GetType());
        i = (int)obj;
        Console.WriteLine("unboxed: {0}", i);
i is 5, x is 5
boxed value = 5, type is System.Int32
unboxed: 5
© 2016 Microsoft