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• Re: How do I call the click handler of a button on the server side?

  The new event is replacing the old one. I want to be able to conrol which one gets called. Let's say I click the button, do something in my new click event and then restore the old event. How do I do that?

  Posted to Web Forms (Forum) by Mark Barnes on 7/13/2009

• Page_IsValid is set to true if OnClientClick is set

  I wrote a UserControl that attaches a Javascript function to a parent form's submit button. The Javascript function ensures that the page is valid by calling Page_IsValid and then proceeds to execute some code. For the problematic pages, the Page_IsValid is set to true on first load. If I don't set the OnClientClick, Page_IsValid is correctly set to false on the first load. I can't figure out why Page_IsValid is behaving this way, since no events are being fired at all. Also, it only

  Posted to Web Forms (Forum) by Mark Barnes on 7/13/2009

• How do I call the click handler of a button on the server side?

  I am writing a UserControl that intercepts a submit button when dropped on a page does something to the fields on the page and then issues a click when its done. I am able to find the submit control on the page, but there doesn't seem to be a way to invoke the Click handler. I tried various methods including JavaScript, but they weren't reliable. The best one I've found is this piece of code: Type t = typeof(Button); object[] p = new object[1]; p[0] = EventArgs.Empty; MethodInfo m = t

  Posted to Web Forms (Forum) by Mark Barnes on 7/11/2009

• Re: How do I call the click handler of a button on the server side?

  Nice solution, but how do I restore the previous event. I will need to call it later. My desired solution is to avoid JavaScript as much as possible.

  Posted to Web Forms (Forum) by Mark Barnes on 7/11/2009

• Is it possible to have more than one ConfirmationButtonExtender per page?

  Is it possible to have more than one ConfirmationButtonExtender per page pointing to the same target control button? Let me also add that each ConfirmButtonExtender will supply its own OK and Cancel script. Any tips on what to look out for in doing this? Any gotchas?

  Posted to ASP.NET AJAX Discussion and Suggestions (Forum) by Mark Barnes on 7/10/2009

• Re: Perform serverside processing before showing ModalPopupExtender

  Through a lot of studying of JavaScript, trial and error and searching, I found the trick is__doPostBack. More specifically, the method Page.ClientScript.GetPostBackEventReferencewhich generates __doPostBack code for you. Using it along with hidden buttons that contained code on its onclick server-side event, allowed me to generate JS code from the serverside to do what I want. Thanks for your help.

  Posted to ASP.NET AJAX Control Toolkit (Forum) by Mark Barnes on 7/9/2009

• Re: Perform serverside processing before showing ModalPopupExtender

  Any ideas? I'm getting the sense that this will involve lots of complicated JavaScript and a deeper understanding of AJAX.

  Posted to ASP.NET AJAX Control Toolkit (Forum) by Mark Barnes on 7/7/2009

• OnClientClick overwrites generated OnClick JS code

  I have an interesting problem that I am trying to figure out. I am following some code examples and for the life of me I can't figure out why I am getting entirely different results even though they are using the same libraries. The code example specifies OnClientClick declaritively: <asp:Button ID="Button" runat="server" Text="Click Me" OnClientClick="disableSubmit();return false;" OnClick="Button_Click" /> View source gives me this: <

  Posted to Client Side Web Development (Forum) by Mark Barnes on 7/7/2009

• Re: How do I reference the ID of a control that exists in the parent page of a user control?

  Thanks a bunch. Duh. I forgot that the parent controls aren't instantiated yet when the accessor is called. That's why I was getting a null reference exception. For the benefit of all here's what to do: public partial class MyUserControl : System.Web.UI.UserControl { private string _targetControlID; public string TargetControlID { get { return _targetControlID; } set { _targetControlID = value; } } protected void Page_Load(object sender, EventArgs e) { ModalPopupExtender1.TargetControlID

  Posted to Custom Server Controls (Forum) by Mark Barnes on 7/6/2009

• Perform serverside processing before showing ModalPopupExtender

  I have a user control that contains a ModalPopupExtender and a ConfirmButtonExtender for OK and Cancel functionality. As soon as the user clicks the target control, I want to do some serverside processing and show the ModalPopupExtender with the results. Is there a way to catch the event where the user click the target control id. I want to do this in a way that doesn't destroy the OK and Cancel functionality I already have in place.

  Posted to ASP.NET AJAX Control Toolkit (Forum) by Mark Barnes on 7/6/2009