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What is the difference between Variable block scope and Class block scope

Posted By:Hiren Soni       Posted Date: August 04, 2010    Points: 10    Category: Windows Form Controls    URL: http://www.dotnetspark.com  

difference between variable block scope and class block scope through the example

its better that i will explain you with an example


    public partial class Form1 : Form


       int i;

        public Form1()



            i = 10;

            // when we access i , it will be accessible, because it is in

            // class scope variable, it will be alive till the life of

            // object.


            int j = 10;

            // here j scope is within the block( between this { }) only

            // whenver block is completer it will not be acceccese outsite(see form1_load event).

            // it will not be more alive.




        private void Form1_Load(object sender, EventArgs e)


            i = 20;


            //j =20;

            // when we write statement j=20, it will give as error

            // because there is no variable named "j"







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