Custom Control with RadComboBox postback issue

[Ron]

Hi,

Im very new to this.. So please bear with my ignorance..
I have a Custom control that Contains a RadComboBox and a script(I didnt write the code)..
Only some of the Client Side properties of the Radcombobox have been exposed so far.. I want to
add an event on RadComboBox that will populate a Textbox (placed inside a UpdatePanel) when the SelectedIndex is changed..
I enabled autopostback on the radcontrol and added an event handling mechanism..

However, Whenever I try to click on a value in Radcombobox, I get an error in the WebResource_2.axd error..

Microsoft JScript runtime error: Object doesn't support property or method 'indexOf'

The following line is highlighted
if(Sys.Browser.agent===Sys.Browser.InternetExplorer){var y=j.indexOf("#");if(y!==d)j=j.substr(0,y);

Can someone please guide me on how do I resolve this error?


Here is the relevant code

...
public event EventHandler click;

 

        public void RaisePostBackEvent(string eventArgument)

        {

            click1(this, EventArgs.Empty);

        }

 

        public virtual void click1(object sender, EventArgs e) {

            if (click != null)

                click(this, e);

        }

 

        private readonly RadComboBox radCombo = new RadComboBox

                                           {

                                               EnableVirtualScrolling = true,

                                               EnableLoadOnDemand = true,

                                               MaxHeight = 300,

                                               Width = Unit.Percentage(100),

                                               ShowMoreResultsBox = true,

                                               ItemsPerRequest = 25,

                                               OnClientItemsRequesting = "comboSetContext",

                                               AutoPostBack = true

                                           };

 

        protected override void CreateChildControls()

        {

            radCombo.ID = ID + "_cb";

            radCombo.ExpandAnimation.Duration = 200;

            radCombo.CollapseAnimation.Duration = 200;

            radCombo.WebServiceSettings.Path = "/combo.ashx";

            radCombo.WebServiceSettings.UseHttpGet = true;

            radCombo.WebServiceSettings.Method = ComboHandler;

            radCombo.OnClientItemDataBound = "catComboItemDataBound";

            radCombo.ToolTip = ToolTip;

            if (string.IsNullOrEmpty(ComboHandler))

            {

                throw new Exception("Must specify a ComboHandler for CatComboBox " + ID);

            }

            Controls.Add(radCombo);

            Controls.Add(new ScriptBlock { Script = "$('#" + ClientID + "_cb_Input').keydown(comboEnterPressed);" });

        }

[Dimitar Terziev]

Hi,

I've inspected the code snippet provided, but it's insufficient to determine what is causing this error. In order to troubleshoot this problem I would need  a runnable sample which I could debug locally, so please open a support ticket and provide such sample.

All the best,
Dimitar Terziev
the Telerik team