Fix null reference exception for Tasks.WhenAll.

5 years ago · 9c5b3ab4d8
1 changed files with 1 additions and 1 deletions
--- a/src/Avalonia.Visuals/Animation/Transitions/Rotate3DTransition.cs
+++ b/src/Avalonia.Visuals/Animation/Transitions/Rotate3DTransition.cs
@ -39,7 +39,7 @@ public class Rotate3DTransition: PageSlide
            return;
        }
-        var tasks = new Task[2];
+        var tasks = new Task[from != null && to != null ? 2 : 1];
        var parent = GetVisualParent(from, to);
        var (rotateProperty, center) = Orientation switch
        {