GridView Perfomance in Canvas

[Sergey]

Hello. I have big problem with gridView perfomance. I have my MDI container like - Grid->ScrollViewer -> Canvas. I add ContentControls to the canvas. ContenControls has next structure: Grid -> Grid -> RadBusyIndicator -> GridView. All grids has Height="*". I read next article - http://www.telerik.com/help/silverlight/gridview-troubleshooting-performance.html and I have question. Can ScrollViewer slow my GridView?

[Vlad]

Hi,

 Both Canvas and ScrollViewer will measure child UI elements with infinity height. In case of ItemsControls like ListBox, DataGrid, ListView, RadGridView, etc. this will force creation of all UI containers for all data items - no UI virtualization at all. 

Regards,
Vlad
the Telerik team

[Sergey]

Does It mean that EnableColumnVirtualization = 'false' and EnableColumnVirtualization = 'true' will have the same result?

 

[Vlad]

Hello,

 Indeed these properties will not have any effect when UI virtual component is measured with infinity  height/width. 

Regards,
Vlad
the Telerik team

[Sergey]

Thanks, but I have big difference in perfomance when I set true or false. But my gridView is in ScrollView->Canvas->ContentControl. Does it mean that virtualization is working?