Static Classes in .Net

• Static classes and class members are used to create data and functions that can be accessed without creating an instance of the class.
• To separate data and behavior that is independent of any object identity
• Static classes can be used when there is no data or behavior in the class which depends on object identity.
• Can be use for storing single-ton instances, global data.
• A static constructor is used to initialize any static data. This is called only once
• A static constructor is used to perform a specific action that needs performed once only.
• A static constructor is called automatically before the first instance is created or any static members are referenced.
• Static Classes are Sealed and only contains Static Members
• Static Classes Cannot be instantiated
• Static Classes can be use for Helper Methods.

static class MyStaticClass
{
    public static string GetName() { return "Name"; }
    public static string GetAddress() { return "Address"; }
    //...
}