Creating Simple Cascading DropDownList In ASP.NET Core MVC With New Tag Helpers

Topic

1. Database part
2. Creating application
3. Installing Package for Entity framework core From NuGet
4. Adding Connection string and Setting up DbContext
5. Adding Category, SubCategory, MainProduct Model in Models Folder
6. Adding DbSet for Category, SubCategory, and MainProduct Model in DatabaseContext class
7. Adding Controller [DemoController]
8. Getting Data from Database using Entity framework core.
9. Adding View [index.cshtml]
10. Binding Category Dropdownlist using new Tag helper
11. Adding SubCategory and Product Dropdownlist to index.cshtml View
12. Adding SubCategory and GetProducts Action Method to Demo Controller
13. Adding Jquery reference on View and Default items in drop-down list
14. Binding SubCategory and Product drop-down list with jquery Ajax
15. Adding Index Action method for handling post request and getting selected values
16. Saving and Run Application

Read Entire Article on below link :- http://www.c-sharpcorner.com/article/creating-simple-cascading-dropdownlist-in-asp-net-core-mvc-with-new-tag-helpers/