I'm working on list box "<SELECT>" using .net MVC but I faced problem from many days
Subcategory successfully fetch but Main category Repeat with every subcategory
in <optgroup>
"Query perform by ADO.Net Entity Framework"
List<tblSubcategory> list = (from x in context.tblSubcategories where (x.Isactive == true) orderby x.CategoryId descending select x).ToList();
return list;