Ajax Performance

Again another post at the Ajax forum. There was a developer who ran into a performance issue with MS Ajax. He had an Updatepanel with a dropdownlist in it which contains 14,000 items. Personally it think that an dropdownlist with 14,000 items isn’t a very good situation and should be avoided when possible. First the developer told me that he couldn’t avoid this situation, because his design matches the business requirements. Finally he choose another solution to workaround this problem.


The problem he had wasn’t there when he did the exact same thing without an UpdatePanel. So this shows us that MS Ajax has his problems with the UpdatePanel. Developers can manipulate the process of partial rendering with the PageRequestManager. Take a look at it to see what kind of scenarios you can handle with the PageRequestManager.


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