[Solved] Multiple ComboBoxes in User Control

[Tommy Martin]

I am creating a user control that I am trying to use the Multiple Combobox with the ClientSide OnClientSelectedIndexChanging event.  When I use the control, something doesn't appear to be working write.  If I use the code a web form the javascript works fine.  Here is what I have...

var deptCombo = $find("cboDepartment");

var item = eventArgs.get_item();

alert(item.get_text());

deptCombo.set_text(

"Loading...");


Thanks in advance for your help.

Tommy

[Veselin Vasilev]

Hi Tommy Martin,

Welcome to Telerik Community!

You need to optain the reference to the combobox in the following way:

var deptCombo = $find("<%= cboDepartment.ClientID %>");

This will guarantee that the proper ID is passed to the find() method.

More information is avalable here:

• Client-Side Basics
• The difference between ID, ClientID and UniqueID

I hope this helps.

All the best,
Veskoni
the Telerik team

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[Simon Kingaby]

Also, depending how deep you are, you may not have access to the ("<%= cboDepartment.ClientID %>) function because the renamed control has been renamed again.  For example, if you put your RadComboBox inside a WebControl inside an ItemTemplate, the ClientID is lost in the final web page.



In this case, use a function like this to iterate through the Telerik.Web.UI.RadComboBox.ComboBoxes collection.  This collection is populated by Telerik whenever a RadComboBox is added to a page.










function

 GetGridCombo(id)

{



    if(Telerik.Web.UI.RadComboBox.ComboBoxes != null)

    {



        for(var i=0; i<Telerik.Web.UI.RadComboBox.ComboBoxes.length; i++)

        {



            var cbo = Telerik.Web.UI.RadComboBox.ComboBoxes[i];




            if(cbo._uniqueId.indexOf(id)>0)

            {



                return cbo;

            }
        }
    }



    return null;

}