Implement jQuery AutoComplete DropDown (ComboBox) in ASP.Net MVC

Here Mudassar Ahmed Khan has explained with an example, how to implement jQuery AutoComplete DropDown (ComboBox) in ASP.Net MVC 5 Razor. The jQuery AutoComplete plugin is actually applied to a TextBox but it can be made to work as a DropDown (ComboBox) by populating the AutoComplete results on TextBox focus as well as when User types in some Text. The data for the jQuery AutoComplete DropDown (ComboBox) will be populated from database using Entity Framework in ASP.Net MVC Razor.