Question

I have a hierarchical structure and when the user press on Add a child, I reopen the same page with [Add, ParentID] parameters.

The problem is, after pressing Add, a postback is made and the reading for the querystring is made again because the querystring is still the same and I catch & process it in the page_load.

Note: I can’t use IsPostBack because the calling is from the same page, so it’ always true.

Any help!

Answer 1

Make sure you only process the query string when the page has not been posted back, by using the IsPostBack property of Page:

if(!IsPostBack)
{
  //Process query string
}