Changeset 6626 for branches/GP.Grammar.Editor/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4

Timestamp:

08/03/11 11:48:16 (13 years ago)

Author:

mkommend

Message:

#1479: Corrected bug concerning the deletion of symbols in the grammar editor.

File:

• branches/GP.Grammar.Editor/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4/SymbolicExpressionGrammarEditorView.cs (modified) (1 diff)

branches/GP.Grammar.Editor/HeuristicLab.Encodings.SymbolicExpressionTreeEncoding.Views/3.4/SymbolicExpressionGrammarEditorView.cs

@@ -188 +188 @@
         Point mouse = symbolsTreeView.PointToClient(new Point(e.X, e.Y));
         TreeNode node = symbolsTreeView.GetNodeAt(mouse);
-        if (node != null) groupSymbol = node.Tag as GroupSymbol;
-        if (node != null && groupSymbol == null) groupSymbol = node.Parent.Tag as GroupSymbol;
+        if (node == null) return;
+        groupSymbol = node.Tag as GroupSymbol;
+        if (groupSymbol == null) return;
         var symbol = e.Data.GetData(HeuristicLab.Common.Constants.DragDropDataFormat);
         if (symbol == groupSymbol) return;