I want to create an input field DropDownList with autocomplete from SQL database (in ASP.NET). I have found a tutorial on this website but I can't install the AJAX toolkit on VS 2022.

DropDownList with TextBox (Allow user to Type) in ASP.Net using C# and VB.Net

How can I complete this task? Do I need AJAX toolkit to continue or can I do this with JavaScript or other methods?