After RadComboBoxs DropDown (PopUp) is open moving the focus with Shift+Tab skips the Combo, Tab does not skip it Available in R2 2015 Release (v.2015.2.623.40)
Enable the ComboBox to open its DropDown in up as well as down direction
The same issue can be observe when placing the control inside ToolBar.
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.
Properties like AutomationProperties.Name are not read if the RadComboBox is editable.
In this case, the control is bound to a collection of strings. The collection contains equal string values. ("h1","h2","h1"). When the first item is selected and afterward we select the last one, will not trigger the SelectionChanged event. This behavior could be improved.
When you start navigating through the ribbon via the keytips or the arrow keys, and you get to a RadRibbonComboBox, this opens its drop down which contains RadRibbonComboBoxItems.
In this case the keyboard navigation (using the arrows) of the RadRibbonComboBox doesn't work. This happens because the ribbon navigation implementation interfere with the combobox navigation.
The RadListBox has an attached property for mvvm binding of SelectedItems - https://docs.telerik.com/devtools/wpf/controls/radlistbox/features/selecteditemssource.
Please support SelectedItemsSource for RadComboxBox too.
Available in LIB Version 2016.3.1010, it will be also available in the 2016 R3 SP1.
When you click on the TextBox of an editable RadComboBox all the text should be selected, but it is not, even when SelectAllTextEvent="All" is set. The text is blinking as selected for half a second and then deselects.
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.
If there are plenty items in RadComboBox and you double click an item to select it sometimes the wrong item is selected because of the animation.