button click on radmenu

[DANA]

Hi,

I'm using the radmenu control , according to this example:

 

http://demos.telerik.com/aspnet-ajax/menu/examples/overview/defaultvb.aspx 

On on of my pages (lets say its Stores.ascx, as in the example), I added a few textboxes and I want to save all the data to my database, on button click.

I have 2 question:

1. How can I avoid a post back on my default.aspx page , every time I select a menu item?

2. Why, on button click, there's no postback, and a session I store turning empty?

 

10x