Index: src/DeltaShell/DeltaShell.Plugins.SharpMapGis.Gui/Forms/MapLegendView/WmsMapLayerGroupNodePresenter.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -r5fc71a385897af92ccb092f2f969b5709afab85a
--- src/DeltaShell/DeltaShell.Plugins.SharpMapGis.Gui/Forms/MapLegendView/WmsMapLayerGroupNodePresenter.cs	(.../WmsMapLayerGroupNodePresenter.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/DeltaShell/DeltaShell.Plugins.SharpMapGis.Gui/Forms/MapLegendView/WmsMapLayerGroupNodePresenter.cs	(.../WmsMapLayerGroupNodePresenter.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
@@ -9,7 +9,7 @@
 {
     public class WmsMapLayerGroupTreeViewNodePresenter : TreeViewNodePresenterBaseForPluginGui<WmsLayer>
     {
-        private IGisGuiService gisGuiService;
+        private readonly IGisGuiService gisGuiService;
 
         public WmsMapLayerGroupTreeViewNodePresenter(GuiPlugin guiPlugin, IGisGuiService gisGuiService) : base(guiPlugin)
         {
@@ -18,7 +18,7 @@
 
         public override bool CanRenameNode(ITreeNode node)
         {
-            ILayer layer = (ILayer)node.Tag;
+            ILayer layer = (ILayer) node.Tag;
             return !layer.NameIsReadOnly;
         }
 
@@ -30,11 +30,6 @@
             }
         }
 
-        protected override bool CanRemove(WmsLayer nodeData)
-        {
-            return true;
-        }
-
         public override void UpdateNode(ITreeNode parentNode, ITreeNode node, WmsLayer layer)
         {
             node.Text = layer.RootLayer.Name;
@@ -50,7 +45,7 @@
 
         public override void OnNodeChecked(ITreeNode node)
         {
-            ILayer layer = (ILayer)node.Tag;
+            ILayer layer = (ILayer) node.Tag;
             layer.Visible = node.Checked;
             gisGuiService.RefreshMapView(layer.Map);
         }
@@ -59,5 +54,10 @@
         {
             return DragOperations.Move;
         }
+
+        protected override bool CanRemove(WmsLayer nodeData)
+        {
+            return true;
+        }
     }
 }
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