Index: src/Common/SharpMap.UI/Tools/Zooming/ZoomHistoryTool.cs
===================================================================
diff -u -r8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9 -r5fc71a385897af92ccb092f2f969b5709afab85a
--- src/Common/SharpMap.UI/Tools/Zooming/ZoomHistoryTool.cs	(.../ZoomHistoryTool.cs)	(revision 8f6ae890fed8e8eae3a32f9c0498a10f82e0ddf9)
+++ src/Common/SharpMap.UI/Tools/Zooming/ZoomHistoryTool.cs	(.../ZoomHistoryTool.cs)	(revision 5fc71a385897af92ccb092f2f969b5709afab85a)
@@ -7,9 +7,9 @@
     /// </summary>
     public class ZoomHistoryTool : ZoomTool
     {
-        private ZoomState currentZoomState;
         private readonly Stack<ZoomState> undoStack = new Stack<ZoomState>();
         private readonly Stack<ZoomState> redoStack = new Stack<ZoomState>();
+        private ZoomState currentZoomState;
         private bool isZoomChangeTriggeredByNavigation;
 
         public ZoomHistoryTool()
@@ -18,6 +18,28 @@
         }
 
         /// <summary>
+        /// Number of undo zoom steps that is available
+        /// </summary>
+        public int UndoCount
+        {
+            get
+            {
+                return (undoStack.Count);
+            }
+        }
+
+        /// <summary>
+        /// Number of redo zoom steps that is available
+        /// </summary>
+        public int RedoCount
+        {
+            get
+            {
+                return (redoStack.Count);
+            }
+        }
+
+        /// <summary>
         /// Undo last zoom and update redo-stack
         /// </summary>
         public void PreviousZoomState()
@@ -60,22 +82,6 @@
         }
 
         /// <summary>
-        /// Number of undo zoom steps that is available
-        /// </summary>
-        public int UndoCount
-        {
-            get { return (undoStack.Count); }
-        }
-
-        /// <summary>
-        /// Number of redo zoom steps that is available
-        /// </summary>
-        public int RedoCount
-        {
-            get { return (redoStack.Count); }
-        }
-
-        /// <summary>
         /// Used to store current ZoomState if it changes
         /// </summary>
         /// <param name="map"></param>