Asp net textbox value not updating on postback

Using the Client ID property of the control will ensure that you get the right ID even if the control is inside a masterpage, a webcontrol, a repeater or whatever might change the ID.

I'm assuming you have some event attached to a button.NET Ajax, but even looking around a lot I didn't find a clean and polished solution for what should be a common task. NET Ajax extender for such a simple task, but after a few hours of Google-ing, I found a few nice articles on Ben Rush's blog, which is a very valuable source of knowledge on the internals of ASP. The only thing you need to do to refresh from javascript is to register a Button (hidden via CSS) Click event as async trigger for an Update Panal and then call the following method from your javascript method: Yes, that easy. But in my page I also had to pass a value to the Update Panel, so the button was not enough.So I adapted a bit Ben's solution, and I add hidden text box, and update its value before calling the do Post Back method. NET VERSIONS: 2.0 Pains of the Postback Making Postback Simple and Painless By Dino Esposito The postback mechanism is an essential part of ASP. Simply put, it consists of posting form data to the same server page that generated the present page with which the user is working.After the page has been initialized and posted values have been taken into account, it s about time that some server-side events occur.

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