Question

Can't get asp:LinkButton OnClick event to fire using jQuery BlockUI

Asked by: markerasmus

I can't get the asp:LinkButton OnClick event handler to fire when using BlockUI.  A normal asp:Button is working.

Using UseSubmitBehavior=false works for a normal asp:button, but doesnt seem to work for asp:LinkButton. The jQuery handler just loops and the code-behind .cs onclick event handler for the asp:linkbutton never fires.

Any ideas?

Sys.Application.add_init(function() {
	$.blockUI.defaults.css = {}; 
	$addHandler($get('Save'), 'click', function() {
		$.blockUI({ message: null, bindEvents: false });
		$('.blockMsg').addClass('progress');
	}); 
	$addHandler($get('lbRefresh'), 'click', function() {
	$.blockUI({ message: null, bindEvents: false });
		$('.blockMsg').addClass('progress');
	});
	
	var prm = Sys.WebForms.PageRequestManager.getInstance(); 
	prm.add_endRequest(function(args, sender) {
		$.unblockUI();
		$('#ConfirmSave').hide(); 
		$.blockUI({ message: $('#ConfirmSave') }); 
		$('#CloseConfirm').click(function(evt) {
			evt.preventDefault(); 
			$.unblockUI({
				onUnblock: function() {
					$('#ConfirmSave').remove();
				}
			});
		});
	});
}); 
var preload = document.createElement('img');
preload.src = 'images/progress-indicator.gif';
delete preload;

                                  
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Asked On
2009-11-08 at 08:50:23ID24881704
Tags

jQuery

,

BlockUI

,

ASP.net

,

LinkButton

Topics

Jquery

,

Programming for ASP.NET

Participating Experts
1
Points
500
Comments
4

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Answers

 

by: markerasmusPosted on 2009-11-08 at 08:54:26ID: 25770976

Here is the test code for the event handlers.  The Save_Click event handler is for the normal asp:Button, and Refresh_Cick event handler is for the asp:LinkButton.

protected void Save_Click(object sender, EventArgs e)
    {
        // Save the customer to your data store here.
        System.Threading.Thread.Sleep(2000); 
        // Display the confirmation.
        ConfirmSave.Visible = true; 
        // Customize the confirmation.
        //CustomerName.Text = Name.Text;
    } 
    protected void Refresh_Click(object sender, EventArgs e)
       {
           // Save the customer to your data store here.
           System.Threading.Thread.Sleep(2000); 
           // Display the confirmation.
           ConfirmSave.Visible = true; 
           // Customize the confirmation.
           //CustomerName.Text = Name.Text;
       }

                                              
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by: amit_gPosted on 2009-11-08 at 11:39:16ID: 25771566

Try adding  eval(this.href); to the event handler

        $addHandler($get('lbRefresh'), 'click', function() {
                $.blockUI({ message: null, bindEvents: false });
                $('.blockMsg').addClass('progress');
                eval(this.href);
        });

 

by: markerasmusPosted on 2009-11-08 at 11:56:31ID: 25771628

Excellent, that worked!  Can you please explain what this is doing?

 

by: amit_gPosted on 2009-11-08 at 12:49:56ID: 25771812

For the link button, the post back happens by a javascript handler that is given in href. The addHandler seems to be adding the onclick event that cancels the default action. eval adds that back. There might be a better way of doing it.

20120131-EE-VQP-002

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