Hi Albert,
I made a simple scenario to replicate the problem, I created a web user control and a page to load it. I put ScriptManager in the page and a treeview and an ajaxmanager in user control and a button to remove a node from tree. when I press the button the tree becomes inactive. I could not figure out what is the problem.
Here is the code for page(webform5.aspx):
and here is the code behind of the page(webform5.aspx.cs):
and here is the user control html (webform4.ascx):
and here is the code behind of the control(webform4.ascx.cs):
Best Regards
Amir