MouseDown and MouseMove are not handled by RadComboBox dropdown when in XBAP, so if the RadComboBox is in Window, it can be resized while the dropdown is opened.

Allow the developers to style the TextBox area of a editable RadComboBox - add icons, change the string, format the text etc.

The combobox lists in Windows 10 settings (see attached pictures) have an interesting behavior which could be integrated by Telerik combox controls. The behavior is as following: when the listbox is opened, it appears above the combobox control with the selected item highlighted. And the placement of the listbox can change if the first item is selected (displayed down direction) or the last item is selected (display up direction).

It's difficult to explain that with simple words, so I suggest to see attached pictures to understand my request.

When the app is in full screen OOB mode the placement of the drop down portion of the ComboBox control is incorrect.

The control should allow customizations in its filtering functionality, for example, the developers should be able let RadComboBox match "Á" when the user types "A".

When the ComboBox is non editable.

After making a selection in the control and changing the theme two times in a row an InvalidOperationException is thrown about the animation.

When IsEditable is set to true the SelectedItem is not updated if you delete the SelectedItem's text to match another existing item.