SharePoint 2010 introduces a new Ajax option has been added to many webparts to enable auto refresh of webpart without refreshing the entire web page.
In SharePoint 2010, web parts have a new section in their tool panes - Ajax Options- The key option is the Enable Asynchronous Automatic Refresh.
- Checking this will enable the Auto Refresh feature on the webpart.
- The Auto Refreshing Interval is the time interval in which webpart will get refreshed automatically.
- Then click the ok button in webpart properties .
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