Code is not working,pls have a look

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C#

public partial class _Default : System.Web.UI.Page
    {
        public delegate void mydelegate();
        public event mydelegate myevent;
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {

            myevent += new mydelegate(method1);
            myevent += new mydelegate(method2);
            myevent += new mydelegate(method3);
            myevent += new mydelegate(method4);
        }

        public void method1()
        {

            Response.Write("Method1");
            throw new Exception();

        }
        public void method2()
        {

            Response.Write("Method2");

        }
        public void method3()
        {

            Response.Write("Method3");

        }
        public void method4()
        {

            Response.Write("Method4");

        }

my above code is not working i.e. on button click method1,2,3,4 are not getting called.
Thanks in Advance.

Posted 28-May-14 4:39am

Rakesh Agarwal1984

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OriginalGriff · Accepted Answer · 2014-05-28T04:46:00

Well no - they won't. You aren't calling them at all - you are just adding them to the list of methods to call when you do action the delegate. In fact, each time you press the button, you add four more methods to the list, so if you did call the delegate itself, after the first press it would call each one once, after the second press it would call each one twice, and so on.

Try this:

C#

protected void Page_Load(object sender, EventArgs e)
{
    myevent += new mydelegate(method1);
    myevent += new mydelegate(method2);
    myevent += new mydelegate(method3);
    myevent += new mydelegate(method4);
}
protected void Button1_Click(object sender, EventArgs e)
{

    if (myevent != null)
    {
        myevent();
    }
}