Wednesday, March 21, 2012

Ajax TabPanel Flickers in .NET 3.5

Hello everyone,

We recently started using VS2008 and the new Ajax Control Toolkit to build a prototype UI, and we have noticed that the TabPanel control flickers when there is a postback on the page. The TabPanel is within an UpdatePanel, and the flicker is occurring any time a postback occurs. Has anyone else seen or heard of this behavior? I know that this version is still in beta, and hopefully the release will resolve this. Any thoughts?

The tabs will "flicker" since they are being re-rendered after a postback, if you don't want this behavior add the UpdatePanel inside the TabPanel, then the tabs themselves won't be re-rendered, just the content.

-Damien


Hi Damien,

Thanks for the response. That's an interesting suggestion, and I will give it a try. However, the tabs did not flicker in the previous version of the toolkit, they only do it for the version released with .NET 3.5 Beta 2, so I'm wondering if this is the expected behavior...


Hello,

Putting the UpdatePanel inside each tab seems to work great, thanks!

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