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Written By:-Isha Malhotra
Email:-malhotra.isha3388@gmail.com
Add Click Event in Button
At Runtime
In my last article I discussed how to create control at
runtime. Now I am discussing that if we want to make any event on any control
then how we generate. To understand the concept of event you must have the
knowledge of Delegate
For Example:-
In my Last Artical I create simple program of two number sum
where I created control at run time. I am continuing with same example in which
now I am creating event for button click and performing sum operation on that
controls which we generated at runtime.
In this article I also explain how to access the runtime
generated control.
To add event in the button I have to use the delegate
EventHandler and add it in the click event and pass the reference of method to
the EventHandler which will fire when we click on the button.
Create following method (you can say it event for button
click)
protected void btn_Click(object sender, EventArgs
e)
{
}
Now we have to pass the reference of this method to that
button which we create at runtime. We have to add this reference to the event
handler.
Button btn_Sub = new
Button();
btn_Sub.ID = "bSum";
btn_Sub.Text = "Sum";
btn_Sub.Click += new EventHandler(btn_Click);
