X-Git-Url: https://mograsim.net/gitweb/?a=blobdiff_plain;f=plugins%2Fnet.mograsim.plugin.core%2Fsrc%2Fnet%2Fmograsim%2Fplugin%2Ftables%2Fmi%2FActiveInstructionPreviewContentProvider.java;h=7078f9a1b20317adda54dfc1a7c5c8c776e5dd3b;hb=648fc6e69e09fe4467cb6bac47934be1a7dcf0d6;hp=d3a14ec70d9921e397bda7d2846d197368402072;hpb=96dd446ab936b4db82d0bd94f90e20442a4d86af;p=Mograsim.git

diff --git a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
index d3a14ec7..7078f9a1 100644
--- a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
+++ b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/tables/mi/ActiveInstructionPreviewContentProvider.java
@@ -56,6 +56,7 @@ public class ActiveInstructionPreviewContentProvider implements InstructionTable
 	@Override
 	public void updateElement(int index)
 	{
-		viewer.replace(activeRow, index);
+		if (activeRow != null && !viewer.getControl().isDisposed())
+			viewer.replace(activeRow, index);
 	}
 }