asp.net How to get the id of the button user clicked

asp.net How to get the id of the button user clicked

up vote1down votefavorite	I have a small problem. I am developing an online seat reservation system which allow users to click and select seats. I am using buttons for seats. I am writing a method for the button click event for all buttons. I need to know how to identify the id of the button, user clicked. thanks in advance. asp.net share|edit|flag asked Jul 10 '13 at 14:45 LIH 316
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When you use a button clicked event, the signature of the method that'll handle the event goes like this: private void foo (object sender, EventArgs e) sender in this case is the button that was clicked. Just cast it to Button again and there you have. Like this: Button button = (Button)sender; int buttonId = button.ID; You an have all your buttons pointing their Click event to the same method like this. share|edit|flag answered Jul 10 '13 at 14:47 Renan 5,0953829

1   Thanks. It worked –  LIH Jul 10 '13 at 15:02 add comment

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The first parameter of your event handler (object source or sometimes object sender) is a reference to the button that was clicked. All you need to do is cast it and then you can retrieve the id value, e.g.: void Button_Click(object sender, EventArgs e) { Button button = sender as Button; if (button != null) { //get the id here } }