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Alberto
955
Performance when loading up and scrolling
posted

Hi,

We've got a XamDatagrid with row-level virtualization turned on, and performance is still quite bad with just 205 rows.

It takes quite a while to load up, and the vertical scrolling is very sluggish.

By using JetBrains dotTrace profiles, we can see that scrolling is spending too much time on below methods:

- CommandHelpers.CanExecuteCommandSource - This is a WPF framework method. Just in case I've removed a RoutedCommand we had, and it's still showing up as a "hot spot".

- DataPresenterBase.OnPreviewMouseLeftButtonDown - This is an Infragistics method.

Any idea on what's slowing down the vertical scroll?

Thanks.