ASP.Net Core MVC: Populate one DropDownList based on another DropDownList selected value using jQuery AJAX

Here Mudassar Khan has explained with an example, how to populate one DropDownList based on another DropDownList selected value using jQuery AJAX in ASP.Net Core MVC. This article will illustrate a dependent Country, State and City DropDownLists which will be populated from database by making use of Entity Framework in ASP.Net Core MVC.