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Editorial Team
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Asked: 2026-05-27T02:38:05+00:00

I am adding a ScrollViewer around my TreeView for 2 reasons: i want more

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I am adding a ScrollViewer around my TreeView for 2 reasons:

  1. i want more control over the way my TreeView scroll bar looks

  2. i want more control over my TreeView scroll bars position, because i want to synchronize a few tree views.

it seems that as soon as i add a ScrollView around TreeView, i lose the ability to scroll it using mouse scroller.

I guess my question is 2 part. Do i gain anything by adding my own ScrollView, and is this behavior by design?

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1 Answer

  1. Editorial Team

    I don’t think either of your requirements precludes using the ScrollViewer that is within the TreeView template. You might need to re-template the TreeView to achieve your goals.

    This also sheds light on why your scrolling doesn’t work as expected. You’ve effectively got a ScrollViewer around a ScrollViewer. What you would need to do for that to work is either remove the ScrollViewer from the TreeView template, or disable it:

    <TreeView ScrollViewer.VerticalScrollBarVisibility="Disabled" ...>

    That said, I do think the better option in your case may be to re-template/re-style the TreeView itself.

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