Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Does implementing a ICallbackEventHandler gain any performance with respect to ViewState over an UpdatePanel or is it very much the same?
The background is this – I have a MS chart server control on the page and will want to refresh data after a page load. Will an ICallbackEventHandler make it any faster than an UpdatePanel?
Yes, my experience is that ICallbackEventHandler will give better performance than an UpdatePanel. The viewstate will still be posted back as part of the request, but you don’t get any updated viewstate returned as part of the response, nor do you have any of the overhead on the clientside of all the Javascript associated with an UpdatePanel. If you have some relatively simple Javascript code to handle the results of your callback, I’d definitely suggest going down that route.