[Solved] $find() issue on radComboBox in asp.net Repeater

[Dan Padmore]

Hi,

I'm having trouble getting a reference to a RadComboBox client-side, the combo box is contained within an ASP.NET repeater control.

I'm using the Telerik $find() method to get a reference to the control in JavaScript.

Below is an example of the code i'm using.

 - All elements with an ID ending with "cmbFunction" are selected and stored in the variable "functionComboboxes", this works fine.

 - Next, for each found element a reference to the RadComboBox is gotten, this fails (I get a null reference).

 

This technique works when the RadComboBox is not contained within an ASP.NET repeater control.

Does anyone have an idea what the proper way is, to do what i'm trying?

 

$(document).ready( function() {
    var functionComboboxes = $("* [id$='cmbFunction']");
    functionComboboxes.each(function() {
        var comboBoxId = $(this).attr('id');
        var comboBox = $find(comboBoxId);
        FilterIdentification(comboBox);
    });
});

[Alex Gyoshev]

Hello Dan,

Most probably the client-side obejcts of the RadComboBox have not been initialized at the moment at which you call the $find. This will happen if the $(document).ready event (DOMContentLoaded) is triggered before the Sys.Application.load event.

Please try the following snippet:
Sys.Application.add_load( function() {
    $("[id$='cmbFunction']").each(function() {
           var comboBoxId = $(this).attr('id');
           var comboBox = $find(comboBoxId);
           FilterIdentification(comboBox);
    });
}); 

Also, the universal selector (*) is rather redundant and may slow the finding of the elements - thus, I removed it.

Best wishes,
Alex
the Telerik team

Instantly find answers to your questions on the new Telerik Support Portal.
Check out the tips for optimizing your support resource searches.

[Dan Padmore]

Alex,

Thank you, your solution works!

[vicky]

Hi Alex,

I am using following statement to get RadCobobox instance on client side

var combo = $find('<%= radcbCoursePopup.ClientID%>');  

But some times I am getting instance value  null. I am not using Telerik functions.

Can you suggest different solution for getting the comobox instance without using telrik helper functions.

Manish