AJAX Call (like RadTooltip) & Real Submit event.

[Eim]

Hi,
 I need to catch the submit event in order to show a user lock layer to avoid multiple user click.
 I tried different way, submit direct event, and in the last (in the hope was the right way) this:

In page.cs :
 protected override void OnLoad(EventArgs e) {
            base.OnLoad(e);
            ScriptManager.RegisterOnSubmitStatement(Page, Page.GetType(), "myPostbackHandler", "myPostbackHandler()");
        }
In page.aspx :
<script language="javascript" type="text/javascript">
        function myPostbackHandler() {
            ... code to show a layer, etc...
        }

In every way I did,  when an ajax call occurs like  mouse over a rad:tooltip control,  
the function myPostbackHandler or submit event is always call.

Is there a way to distinct these DIFFERENT (ajax call, real submit) action on client side  ?

Thanks a lot. 

[Tsvetina]

Hello,

I just answered your question in the support ticket you opened. I am also posting it here. If you have any further questions, please place them in the ticket, so that we avoid duplicate posts.

Here is how you can make it work. I did not notice differences with the behavior of this approach in different RadControls versions, so it should work for you too.
1) Attach the onsubmit event, as you suggested - through the ScriptManager
2) Inside it, set a minimal timeout, so that the request can be processed
3) Check if it is an ajax request through the get_isInAsyncPostBack() property of the PageRequestManager
4) If not, show the div
5) (optional) You could use a RadAjaxLoadingPanel and show it explicitly over the desired element in the page

For your convenience I am attaching a sample project demonstrating this approach (I did not add the Skins dll to keep the archive as small as possible but runnable at the same time). 


Regards,
Tsvetina
the Telerik team