I have a GridView in a ListView contained in a ScrollViewer element.
I understand WPF draws only the visible data at runtime, for example on scrolling grids only th
Avoid setting the ScrollbarVisibility property to "Auto", that can degrade performance. Instead set it to "Visible", "Disabled", or "Hidden" (in your case probably "Visible").
"Auto"
"Visible"
"Disabled"
"Hidden"