Gridview updatepanel not updating
This process is coordinated by the Script Manager server control and the client Page Request Manager class.
When partial-page updates are enabled, controls can asynchronously post to the server.
Microsoft is conducting an online survey to understand your opinion of the Msdn Web site.
If you choose to participate, the online survey will be presented to you when you leave the Msdn Web site.
The following illustration shows a page that is loaded for the first time, and a subsequent asynchronous postback that refreshes the content of an Update Panel control.
The Update Panel control requires a Script Manager control in the Web page.
Coordinating between server and client to update only specified parts of a Web page usually requires in-depth knowledge of ECMAScript (Java Script).
This is referred to as performing a partial-page update.
A Web page that contains a Script Manager control and one or more Update Panel controls can automatically participate in partial-page updates, without custom client script.
When the specified event of the trigger control is raised (for example, a button's Click event), the update panel is refreshed.
The following example shows how to specify a trigger for an Update Panel control.