AJAX :: SliderExtender Behavior Can Only Be Capture After A Postback?

Dec 3, 2010

I'm using SliderExtender in content of a Master Page.

It has a JavaScript function that is called in both $(document).ready and Sys.WebForms.PageRequestManager.getInstance() .add_endRequest() .

When I initial the page, the function is not active, it says " $find('BehaviorID') " is null, while other JavaScript function (without behaviourID) works smoothly.

But when I do a postback on the page. The slider function turns to available.

It seems the page didn't generate properly, miss a slider tag with class = "...BehaviorID..."

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