Asp .net RadDatePicker in CompositeControl

[Marek]

I have problem with RadDatePicker inside composite control. My composite control looks like this:
...
        protected override void CreateChildControls()
        {
            this.Controls.Clear();
            this.Calendar = new RadDatePicker
            {
              ID = "Calendar",
                Width = new Unit(100, UnitType.Percentage)

            };
            this.Controls.Add(this.Calendar);
        }

        protected override void Render(HtmlTextWriter writer)
        {
            this.AddAttributesToRender(writer);
            writer.RenderBeginTag(HtmlTextWriterTag.Div);
            this.Calendar.RenderControl(writer);
            writer.RenderEndTag();
        }
...
When I launch the project, the callendar appers on the page. The problem is that firebug logs error, and after click on the calendar's button nothing happens. The error:

TypeError: a is undefined

...alizer._serverTypeFieldName&&f!==0){d[f++]=d[0];d[0]=e}else d[f++]=e}if(i)d.sort... Teleri...cacbc31

[Maria Ilieva]

Hi,

Could you please try to add another script control in your custom composite control and verify if the same error appears? Also please try to firstly add the RadDatePicker control to the control collection and then set its properties.

Kind regards,
Maria Ilieva
the Telerik team