How can I use AutoPostBack inside UpdatePanel

Question

I have two DropDownLists inside an UpdatePanel.

The values shown inside the second are dependent of the selectedValue on the first, so, I need AutoPostBack=true.

But, whenever the selected value in the first DropDownList is changed causes the UpdatePanel reload.

How can this be solved?

PS.: The UpdatePanel's UpdateMode property is set to Conditional.

Thanks.

Unless I am misunderstanding, what you are describing sounds like correct behavior. AutoPostBack is true and the selected value changes, the UpdatePanel intercepts that postback and does it asynchronously. What's the problem? — Rex M
What were the rules that you add in Page_Init? Thanks! Regards! — Mesk

Speck Speck · Accepted Answer · 2010-09-24T02:44:46

0

votes

Resolved by adding the Page_Init to execute some rules only at the first charge.