Version

AjaxSubmitting Property

Gets sets name of javascript function which is called before submitting an UpdatePanel of tab.
Syntax
'Declaration
 
Public Property AjaxSubmitting As String
public string AjaxSubmitting {get; set;}
Remarks
That event is raised only when submit of UpdatePanel was triggered by tab change or mouse click on already selected tab.

That is event is not raised when UpdatePanel was submitted by a local element like button.

Action can be canceled. Second param in handler is instance of TabItemCancelEventArgs class, which provides information about TabItem.
Example
Me.WebTab1.ClientEvents.AjaxSubmitting = "WebTab1_AjaxSubmitting"
this.WebTab1.ClientEvents.AjaxSubmitting = "WebTab1_AjaxSubmitting";
// The client event AjaxSubmitting takes two parameters sender and e
        // sender  is the object which is raising the event
        // e is the TabItemCancelEventArgs

        function WebTab1_AjaxSubmitting(sender, e) {


            var tab = sender;

            //Gets the index of the tab raising the client event
            var tabIndex = e.get_tabIndex();
            //Gets the collection of tabs
            var tabs = tab.get_tabs();
            //Gets the text of the tab raising the event
            var tabText = tabs[tabIndex].get_text();

            //Assuming you have a label called labelOutput on the form
            var label = $get('labelOutput');

            if (tabIndex == 4) {
                
                //Cancels the client event
                e.set_cancel(true);
                label.innerHTML = "Ajax request cancelled!";

            }

            else
                label.innerHTML = "AjaxSubmitting for tab " + tabText + "...";


        }
Requirements

Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also