ScrollIntoView and BringIntoView do not work

[Paul]

Hello,

I'm attempting to scroll the selected item into view.  The item is not null.  I have tried the following methods:

mainGrid.ScrollIntoView(mainGrid.SelectedItem);

mainGrid.BringIndexIntoView(mainGrid.Items.IndexOf(mainGrid.SelectedItem));

Dispatcher.BeginInvoke(new Action(() => 
    mainGrid.ScrollIntoView(mainGrid.SelectedItem)));

Dispatcher.BeginInvoke(new Action(() => 
    mainGrid.BringIndexIntoView(mainGrid.Items.IndexOf(mainGrid.SelectedItem))));

All of the above methods simply scroll my grid a few pixels only and then stop.  All four behave the same way.  If I call all four together, it scrolls (a couple pixels * 4).  Any ideas?

[Maya]

Hi Paul,

I have tested the scenario you described and everything works as expected. I am sending you the sample project I used for reproducing the case. Please take a look at it and let me know in case of any misunderstandings.
 

Kind regards,
Maya
the Telerik team

[Paul]

Hello,

Thank you for the response.  Yours works because you do not have a details template.  Add the following XAML to your grid, and set the RowDetailsVisibilityMode to Visible:

<telerik:RadGridView.RowDetailsTemplate>
    <DataTemplate>
        <TextBlock Text="WW"/>
    </DataTemplate>
</telerik:RadGridView.RowDetailsTemplate>

Now run your application and you'll have the same results as me.

[Maya]

Hello Paul,

This behavior is sort of an expected one as once the RowDetails are opened, the calculation of the exact place for scrolling to cannot be calculated correctly. We do make efforts in improving this, but so far no appropriate solution is available. The basic reason is that the RowDetails may be of different height for the different rows, thus making it hard to show the selected item in the visible area.
What can be done is to disable the virtualization (EnableRowVirtualization="False"). However, it may lead to degraded performance in case of big amount of data. The other solution would be not to use RowDetails.

Greetings,
Maya
the Telerik team

[Paul]

I will turn off EnableRowVirtualization.  The feature is required so we'll have to deal with any performance issues.  Thanks for the help.