Asp.Net MVC - Creating a treeview based on the node clicked

Question

I know how to render a unordered list with children when returning data from the database but I have a slightly different requirement.

My view has a top level of list items in the UL made up of dates. When the user clicks a date it needs to send that server side to run a query to render the possible children. It has to do this up to 4 levels deep.

My question is once you send the parameter server side how do you make sure that the previous nodes are in tact because by the time you are 4 levels deep you have lost the model that generated the top level.

Answer 1

I'm not sure that I understood the question. In order to check the state of the model you have to parametrize those states. For example level 1 contains item with certain id's, level 2 other ids. During the ajax requests the model state is send to server so it can render appropriate control.