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-rw-r--r--src/GraphicObjects/GenericStack.cs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/GraphicObjects/GenericStack.cs b/src/GraphicObjects/GenericStack.cs
index c6260c6b..f50a4427 100644
--- a/src/GraphicObjects/GenericStack.cs
+++ b/src/GraphicObjects/GenericStack.cs
@@ -100,6 +100,8 @@ namespace go
public override void RegisterForLayouting (int layoutType)
{
+ if (Parent == null)
+ return;
base.RegisterForLayouting (layoutType);
if ((layoutType & (int)LayoutingType.PositionChildren) > 0)