Guard against possible infinity.

Guard against possible infinity if exiting measure early.
samueldjack · Dec 2, 2015 · e63d891 · e63d891
1 parent 261b9a2
commit e63d891
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/VirtualCollection/VirtualCollection/VirtualizingWrapPanel.cs b/VirtualCollection/VirtualCollection/VirtualizingWrapPanel.cs
@@ -78,7 +78,8 @@ protected override Size MeasureOverride(Size availableSize)
         {
             if (_itemsControl == null)
             {
-                return availableSize;
+                return new Size(double.IsInfinity(availableSize.Width) ? 0 : availableSize.Width,
+                    double.IsInfinity(availableSize.Height) ? 0 : availableSize.Height);
             }
 
             _isInMeasure = true;