Index of a Button in an array

Hi.
I have an array of buttons that I fire MouseClick event for them in Form1_Load method.
In Button_MouseClick method, How Can I understand What is the index of button that is pressed?(pressed button is one of aforementioned array members)
Can I change signature of Button_MouseClick event and add an int parameter to end of it as index?
Thanks :-)

Notice that the Button_MouseClick event has both a sender and eventarg.  The sender IS the button, so you can just examine the properties of the button, such as the Name to figure out which button was pressed.  If you have an array, then map the button name to the array index in a hashtable
private void button1_Click(object sender, EventArgs e)
{
  MessageBox.Show((sender as Button).Name);
}

Hi,

You can use
<asp:LinkButton runat="server" ID="btn" CommandName="1"
                                                                                OnCommand="btn_Command" CausesValidation="false">

CommandName="1" where 1 is the index of the button and OnCommand="btn_Command" is the event method to call when any button from the array is clicked. You can further read about CommandName and OnCommand properties of link button

Dont forget to mark my answer as accepted if it helped you