Use (0, 0) as default for non-existing PreviousMeasure

9 years ago · 00fbc5cea7
1 changed files with 1 additions and 1 deletions
--- a/src/Avalonia.Layout/LayoutManager.cs
+++ b/src/Avalonia.Layout/LayoutManager.cs
@ -133,7 +133,7 @@ namespace Avalonia.Layout
            if (!control.IsMeasureValid)
            {
-                control.Measure(control.PreviousMeasure.Value);
+                control.Measure(control.PreviousMeasure ?? default(Size));
            }
            _toMeasure.Remove(control);