fix(controls): Add ViewportSize bindings to ListView ScrollBars#1689
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pomianowski merged 1 commit intolepoco:mainfrom Apr 23, 2026
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Bind the horizontal and vertical ScrollBar
ViewportSizeto the control template'sViewportWidthandViewportHeightso the scrollbar thumb size correctly reflects the visible viewport. Changes applied tosrc/Wpf.Ui/Controls/ListView/ListView.xamlby addingTemplateBindingforViewportSizeon both ScrollBar elements.Pull request type
Please check the type of change your PR introduces:
What is the current behavior?
Currently, the scrollbar thumbs on a
ListViewwith aGridVieware always minimum size, even when the list isn't very long. This is because theViewportSizetemplate binding isn't set on the scrollbar elements in the control template.Issue Number: N/A
What is the new behavior?
This PR sets the ViewportHeight and ViewportWidth template bindings on the vertical and horizontal scrollbars in the
GridViewScrollViewerTemplatecontrol template.Other information
Before:
After:
