= 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).

Remarks

The assignment operator cannot be overloaded.

Example

// cs_operator_assignment.cs
using System;
class MainClass
{
    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);
    }
}

Output

i is 5, x is 5
boxed value = 5, type is System.Int32
unboxed: 5

See Also

Reference

C# Operators

Concepts

C# Programming Guide

Other Resources

C# Reference