[Solved] Stealth scrolling

[Stefan]

Is there a way to use stealth paging/scrolling with RIA services and Telerik GridView and Listboxes? Or are there plans to support stealth paging?

[Rossen Hristov]

Hi Stefan,

What do you mean by stealth scrolling?

Are you referring to something like this or this? Or do you mean deferred scrolling?

Regards,
Ross
the Telerik team

[Stefan]

Stealth paging refers to the concept of retrieving data in background just before it is needed. You start by loading DataGrid with only one or two pages worth of data, just enough to cover the screen and some more. Now when user starts scrolling, and nears the end of available rows to show, we fetch additional data and add it to the data collection. User continues scrolling, without ever realizing that data was fetched in the background.
http://weblogs.asp.net/manishdalal/archive/2008/10/09/stealth-paging-datagrid.aspx

ComponentOne has an example of this technique:
http://demo.componentone.com/Silverlight/ControlExplorer/#DataGrid/Stealth%20Paging

You see this technique more and more in smartphones and tablets. When using a touch enabled device stealth paging is a lot easier for the user then paging with a datapager. I was wondering if the Telerik controls support this feature.

[Vlad]

Hi,

 Indeed you can do this using our virtual collection. For more info you can check these links:

http://demos.telerik.com/silverlight/#DataVirtualization/FirstLook

http://blogs.telerik.com/vladimirenchev/posts/10-12-09/server_sorting_and_filtering_with_wcf_ria_services_and_telerik_data_virtualization_for_silverlight.aspx

http://www.telerik.com/help/silverlight/using-data-virtualization.html

Greetings,
Vlad
the Telerik team