How to update querystring in C#?

Question

Somewhere in the url there is a &sortBy=6 . How do I update this to &sortBy=4 or &sortBy=2 on a button click? Do I need to write custom string functions to creat

Answer 1

You can do it clientside with some javascript to build the query string and redirect the page using windows.open.

Otherwise you can use Response.Redirect or Server.Transfer on the server-side.