ASP.NET Popup - Load Content On Demand (coming soon in v2010 vol 2)

ASP.NET Team Blog
06 October 2010

Check out this great new feature of the ASP.NET Popup control in DXperience v2010 volume 2 release.

Load Popup Content On Demand

The ASP.NET popup Control, ASPxPopupControl, will give you the capability to load the content of popup windows on demand.

To see it in action, check out this animated gif that shows the Popup control’s content being updated:



Using the postponed load of popup window contents, you can enhance the response time of your web page on its initial load.

You can also update the content of popup windows programmatically, on demand.


Several content loading modes will be available to you through the following settings of the LoadContentViaCallback property:

  • None - The content is always (initially) rendered inside popup windows (the default behavior)
  • OnPageLoad - Loading of popup window contents starts immediately after the entire page has been loaded
  • OnFirstShow - Loading of popup window contents starts when a popup window is invoked for the first time


Are you looking forward to the Popup control’s ‘Load Content on Demand’ feature? Drop me a line below, thanks.

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