To resolve this , you can set the Update Panel1's Update Mode to "Always". But trying to add other update panels makes things work erracticaly. Lets take this simple animation which is targeted at Update Panel2 If Update Panel 1 updaes it will fire the On Updating animation for Update Panel 2 even though the panels updatemode is declared as conditional.Or do the Fad In work manually just like what I have done in the sample below. I think the Update Panel Animation Extender is still full of bugs and not usable in many cases. This causes panel 2 to fade out and disappear and it never comes back because the On Updated event is never fired. If you have two update seperate panels and only want an animation on one you cannot.Either both events need to fire or neither event needs to fire. It came out when you use more than one Update Panel, using Update Mode as Conditional and Update Panel Animation Extender itself.Update Panel Animation Extender will animate On Updating for ALL Update Panels in a page even one of it Conditional and no need updating.
The animations to be played are declaratively specified using XML.
I already fix this issue on my own by making decision which Update Panel should play On Updating animation on client side. Please check Update Panel Animation Extender - On Updating Will Always Play and more details. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question.
This can be beneficial to other community members reading the thread. I have two updatepanels, and two Update Panel Animation Extender on my site.
AJAX can help to develop web applications and retrieve small amounts of data from a web server. Step 6 : Go to Toolbox and drag Update Panel Animation Extender Control.
Update Panel Animation Extender set the target controls to the respective Labels and Buttons.