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Guard for null reference

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This commit is contained in:
John Lewin 2017-07-13 15:35:05 -07:00
parent 21fe181589
commit 1e1cf68070
1 changed files with 1 additions and 1 deletions
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2
PartPreviewWindow/PrinterTabPage.cs
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@ -115,7 +115,7 @@ namespace MatterHackers.MatterControl.PartPreviewWindow
viewControls3D.ResetView += (sender, e) =>
{
if (gcode2DWidget.Visible)
if (gcode2DWidget?.Visible == true)
{
gcode2DWidget.CenterPartInView();
}