Default Focus on AutoCompleteExtender textbox not working

Question

I am using the AutoCompleteExtender on a webpage I am creating and noticed that after I set the defaultfocus on my form to the textbox that the AutoCompleteExtender is targetting it stopped working. I can click off of the textbox and then reselect it and the AutoCompleteExtender starts working. If I remove the defaultfocus it works every time. Is this a bug in the AutoCompleteExtender?

Answer 1

i solved it by install the last version AjaxControlToolkit by (AjaxControlToolkit -Version 17.1.1) https://www.nuget.org/packages/AjaxControlToolkit/