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Jerry Kurata
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Jerry Kurata
asked on 05 Jan 2011, 07:12 PM
Hi,
I think I made an inadvertent change to my code and now I notice that the thumb/slider/wheel in the vertical scrollbar starts large and as the user scrolls changes length. Could someone tell me how to set this to a fixed size.
FWIW, this happened during a conversion to MVVM.
Thanks,
jerry
I think I made an inadvertent change to my code and now I notice that the thumb/slider/wheel in the vertical scrollbar starts large and as the user scrolls changes length. Could someone tell me how to set this to a fixed size.
FWIW, this happened during a conversion to MVVM.
Thanks,
jerry
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Jerry Kurata
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answered on 05 Jan 2011, 09:16 PM
A couple of observations.
1) If I set RowVirtualization to false the scrollbar thumb is small and works as expected. But, of course, performance is poor with a lot of rows.
2)The UIVirtualization demo of 50 millon rows show the correct behavior, thumb is small.
1) If I set RowVirtualization to false the scrollbar thumb is small and works as expected. But, of course, performance is poor with a lot of rows.
2)The UIVirtualization demo of 50 millon rows show the correct behavior, thumb is small.
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Jerry Kurata
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answered on 05 Jan 2011, 10:33 PM
I figured out the problem. I bind the RowHeight as RowHeight="{Binding CurrentRowHeight}". I forgot to initialize CurrentRowHeight under certain conditions, so it was set to 0. This caused the grid to get confused.