diff -r 3145aadca3d2 -r 0c551e8818e0 External/Aga.Controls/Tree/FixedRowHeightLayout.cs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/External/Aga.Controls/Tree/FixedRowHeightLayout.cs	Sun May 27 15:16:19 2012 +0000
@@ -0,0 +1,61 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Drawing;
+
+namespace Aga.Controls.Tree
+{
+	internal class FixedRowHeightLayout : IRowLayout
+	{
+		private TreeViewAdv _treeView;
+
+		public FixedRowHeightLayout(TreeViewAdv treeView, int rowHeight)
+		{
+			_treeView = treeView;
+			PreferredRowHeight = rowHeight;
+		}
+
+		private int _rowHeight;
+		public int PreferredRowHeight
+		{
+			get { return _rowHeight; }
+			set { _rowHeight = value; }
+		}
+
+		public Rectangle GetRowBounds(int rowNo)
+		{
+			return new Rectangle(0, rowNo * _rowHeight, 0, _rowHeight);
+		}
+
+		public int PageRowCount
+		{
+			get
+			{
+				return Math.Max((_treeView.DisplayRectangle.Height - _treeView.ColumnHeaderHeight) / _rowHeight, 0);
+			}
+		}
+
+		public int CurrentPageSize
+		{
+			get
+			{
+				return PageRowCount;
+			}
+		}
+
+		public int GetRowAt(Point point)
+		{
+			point = new Point(point.X, point.Y + (_treeView.FirstVisibleRow * _rowHeight) - _treeView.ColumnHeaderHeight);
+			return point.Y / _rowHeight;
+		}
+
+		public int GetFirstRow(int lastPageRow)
+		{
+			return Math.Max(0, lastPageRow - PageRowCount + 1);
+		}
+
+		public void ClearCache()
+		{
+		}
+	}
+}