I have an AutoComplete control in multi windows, when trying to open the suggestion view, the app hands. 

When in single window, no issues. 

PlatformView cannot be null here occurs in RadBorderHandler.MapBackgroundColor() when calling DisconnectHandlers() on views containing RadAutoComplete controls during the Unloaded event.

- a way to close this result popup by the Escape key,

- A way to move with the keyboards up and down arrows from the input part to the result popup

when setting IsEnabled to false, the control is still enabled. It should be disabled. Works fine on Android and WinUI. 

When I use an autocomplete, I type "John" which comes up with "John Doe" high lighted in the input box, if i hit tab i get a tab in the input box. I want to have an option to select item from the drop-down using the keyboard keys.