And I have a button that's completely apart from all these.When I click the buton I can get all the validation messages summarized in the validationsummary.In the browser, the client Page Request Manager class performs Document Object Model (DOM) manipulation to replace existing HTML with updated markup. NET Web Parts is an integrated set of controls for creating Web sites that enable end users to modify the content, appearance, and behavior of Web pages directly from a browser.You can use Web Parts controls inside A class in the Microsoft Ajax Library that coordinates partial-page rendering in the browser.But, The problem may come when we want to update the controls which are outside of Update Panel and we need to update the same while updating then control inside updatepanel. Now, our requirement is to update the Label2 while we are updating Label1 by Clicking Button1. Lable1 present inside the update Panle and Label2 is in the outside of update Panel.I'm almost sure that this is a bug in Visual Studio as I've witnessed many things like this.When the image Button is clicked, on the server side, I change the class of my Div. I assume this is because the div is outside of the Inside Update Panel. If you are updating the class server-side, then the answer is yes.
So, In case we have multiple control that we need to update we can use the control name to retrieve the value form the Controldata Items.Hope this gives you a good idea that what needs to do to update controls which is outside of updatepanel during partial page rendering. When working in the markup editor in Visual Studio, you may notice (from Intelli Sense) that there are two child elements of an Update Panel control.The Page Request Manager class asynchronously exchanges information with the server, and exposes events and methods for custom client script development. This thing is quite simple when we are trying to update any control which is inside the updatepanel itself. We have one Button say Button1, which is also inside the Update Panel.Writing code that coordinates between server and client to update only specified parts of a Web page usually requires in-depth knowledge of ECMAScript (Java Script).However, by using the control, you can enable a Web page to participate in partial-page updates without writing any client script.Validators of the controls on the first panel are in a seperate div, which is not contained in either of the panels.The second update panel has only one control to validate so I've put its validator to the same panel.If you want, you can add custom client script to enhance the client user experience.When you use an server control and the client Page Request Manager class.