Which control caused the postback?

Question

I have two buttons:

<asp:Button ID="Button1" runat="server" Text="Button" /> <asp:Button ID="Button2" runat="server" Text="Button" /> 

How can I determine on pageLoad which one of this two caused the postback? Is there a short solution as I know there are only two controls that can cause this postback?

Answer 1

You can use this method to get the control that caused the postback:

/// <summary> /// Retrieves the control that caused the postback. /// </summary> /// <param name="page"></param> /// <returns></returns> private Control GetControlThatCausedPostBack(Page page) {     //initialize a control and set it to null     Control ctrl = null;      //get the event target name and find the control     string ctrlName = page.Request.Params.Get("__EVENTTARGET");     if (!String.IsNullOrEmpty(ctrlName))         ctrl = page.FindControl(ctrlName);      //return the control to the calling method     return ctrl; }