Don't estimate negative top/left for viewport.

Fixes #11272.
3 years ago · 2f50504ff3
1 changed files with 1 additions and 2 deletions
--- a/src/Avalonia.Controls/VirtualizingStackPanel.cs
+++ b/src/Avalonia.Controls/VirtualizingStackPanel.cs
@ -493,8 +493,7 @@ namespace Avalonia.Controls
                c = c?.GetVisualParent();
            }

-
-            return viewport;
+            return viewport.Intersect(new Rect(0, 0, double.PositiveInfinity, double.PositiveInfinity));
        }

        private void RealizeElements(