We all know that a static variable will be shared by entire class instead of objects. What about Generic Types?? Suppose, from a generic type, if 2 constructed types created, will they maintain different copy or same copy?? They will maintain their own copy.

class A<T>
{
    static int M;
    public static void addnum()
    {
        M++;
        Console.WriteLine(M);
    }
}
class C
{
    public static void Main()
    {
        A<int> a = new A<int>();
        A<int>.addnum();
        A<int> a2 = new A<int>();
        A<int>.addnum();
        A<string> a3 = new A<string>();
        A<string>.addnum();
        Console.ReadKey();
    }
}

Don't be confused... Constructed Types are classes only, where as Generic Types are like templates. Static variable will be maintained in class level. So, constructed types will maintain their own copy.

Published under: Microsoft .NET Tips ·  ·  ·  ·