How to add button with arrow to AutoCompleteBox for showing dropdownlist?

[Kamil]

I would like to have a button with arrow image inside AutoCompleteBox (this control will be created in code behind), so after pressing it the dropdownlist with current text matching items would show up (if no text is present, then the first X number of items). I have the control already made in Winforms (using your Winforms components, attachment shows the winform's control look), so I was wondering if the same can be made in ASP.NET?

 

(btw: if you want to see the code of my Winform's control then you can see in this thread: https://www.telerik.com/forums/click-event-not-firing-for-autocompletesuggesthelper-popup-of-raddropdownlist )

[Doncho]

Hi Kamil,

I am afraid that the required behavior goes beyond the default features of the AutoCompleteBox. Yet you can try to achieve something similar with custom implementation.

I would suggest you refer to the following forum post that may give you an idea of how to show the AutoCompleteSuggestions when before any text is added to the control - Need a control that will load on demand on click and allow multi select.

You may also find it useful to check out the Show all records when focusing the input element of RadAutoCompleteBox KB article

I hope this will help you achieve the desired.

Kind regards,
Doncho
Progress Telerik