Add a possibility to set minimum populate delay to the control. It would be useful if a property like MinimumPopulateDelay is available to be set which would cause the populating of items to be delayed. Such feature would be helpful for cases when making requests to web server etc.

Available in the R3 2016 Release.

Please check our help article for more information:
http://docs.telerik.com/devtools/wpf/controls/radautocompletebox/features/key-properties#setting-noresultscontent-noresultscontenttemplate-properties

As a developer I would like to be able to implement a custom highlighting logic of the items in the DropDown portion of the control so that I could implement a "best" matched item highlighting.

Add a possibility to set minimum populate delay to the control. It would be useful if a property like MinimumPopulateDelay is available to be set which would cause the populating of items to be delayed. Such feature would be helpful for cases when making requests to web server etc.

As a developer I would like to be able to implement a custom highlighting logic of the items in the DropDown portion of the control so that I could implement a "best" matched item highlighting.

Make it possible to override the functionality of keystrokes in the control. A useful case is when placing the control inside RadGridView's CellEditTemplate and wanting to leave cell editing mode by pressing the escape keyboard key.

Make it possible to display text e.g. "No result" when there are no filtered items. Here is an example of this http://i.stack.imgur.com/HVaxP.png

Available in the R3 2016 Release.

Please check our help article for more information:
http://docs.telerik.com/devtools/wpf/controls/radautocompletebox/features/key-properties#setting-noresultscontent-noresultscontenttemplate-properties

For example changing the highlighted index to be the first possible in SuggestAppend AutoCompleteMode.