FilteringMode="StartsWith" with fixed item

[Dandan]

Hi,

I have comboBox with checkBoxes items.  I use  FilteringMode="StartsWith" for searching. I want that when the user use "startWith", then he will get list of "startWith" items, but with another item "choose all" that always appears (with any search).
Can I do it (item that appear always, with any search)?

Thanks!

[Robert Owens]

In my opinion you will need to override the control template and put the "always visible" checkbox above the ItemsPresenter. Then inherit from RadComboBox and handle the events from the checkbox in order to check/uncheck all items.

~Robert