static functions

[sangeetha jagannathan]

Hello friends,
I have a doubt abt the static functions. Static function can access only static variables. Is this true? if so, then every program in c# contains public static void Main(), which access all kind of variables, objects and methods. How does this work? plz explain


Thanks in advance
Sangeetha

[enggwaqas]

Hello friends,
I have a doubt abt the static functions. Static function can access only static variables. Is this true? if so, then every program in c# contains public static void Main(), which access all kind of variables, objects and methods. How does this work? plz explain


Thanks in advance
Sangeetha

Static function can access static variables and variables that are local to that function but static function can not access "member" variables. The reason is Static method can be called without instatiating a class object. e.g.

class Program
    {
        private int _iNumber;
        static int _iStaticNumber;
 
        static void Func()
        {
            _iStaticNumber = 0; //can access this bcoz it's static
            _iNumber = 0; //ERROR: this variable isn't accesible in static method
 
            int iLocalNumber;
            iLocalNumber = 3; //can access this
        }
    }

In the same Static Main method works. Which ever class Main method belongs to since it is static it is called without instatiating an object and it creates a local variable of your class. e.g.

static void Main()
        {
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
            Application.Run(new frmMain()); //create local object of frmMain class
        }

For more information: http://www.google.com.pk/search?hl=en&q=static+c%23&btnG=Search&meta=