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    <p> I have modified the TreeNode.Arrange() method for indented tree arrangement.<br> Now it looks like this: </p> <pre><code>public void Arrange(Graphics gr, ref float xmin, ref float ymin) { // See how big this node is. SizeF my_size = Data.GetSize(gr, MyFont); // Recursively arrange our children, // allowing room for this node. float y = ymin + my_size.Height; float biggest_xmin = xmin + my_size.Width; float subtree_xmin = xmin + my_size.Width + Hoffset; foreach(TreeNode&lt;T&gt; child in Children) { // Arrange this child's subtree. float child_xmin = subtree_xmin; child.Arrange(gr, ref child_xmin, ref y); // See if this increases the biggest ymin value. if(biggest_xmin &lt; child_xmin) biggest_xmin = child_xmin; // Allow room before the next sibling. y += Voffset; } // Remove the spacing after the last child. if(Children.Count &gt; 0) y -= Voffset; // See if this node is wider than the subtree under it. float subtree_height = y - ymin; if(my_size.Height &gt; subtree_height) { y = ymin + (my_size.Height - subtree_height) / 2; foreach(TreeNode&lt;T&gt; child in Children) { // Arrange this child's subtree. child.Arrange(gr, ref subtree_xmin, ref y); y += Voffset; } subtree_height = my_size.Height; } // Set this node's center position. Center = new PointF(xmin + my_size.Width / 2, ymin + my_size.Height / 2); ymin += subtree_height; xmin = biggest_xmin; } </code></pre> <p>Note, that the DrawSubtreLinks() method have also been modified:</p> <pre><code>private void DrawSubtreeLinks(Graphics gr) { foreach(TreeNode&lt;T&gt; child in Children) { PointF p = new PointF(Center.X, child.Center.Y); gr.DrawLine(MyPen, Center, p); gr.DrawLine(MyPen, p, child.Center); child.DrawSubtreeLinks(gr); } } </code></pre>
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    1. POHow to make owner-drawn TreeNode class arrange items like in indented tree?
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    1. COThis answer is correct, tested, and will receive a bounty in 5 hours (due to SO awarding time restrictions).
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    2. COBTW: here is answer from original TreeNode author http://blog.csharphelper.com/2011/10/25/make-a-generic-treenode-class-that-can-draw-trees-oriented-vertically-or-horizontally-in-c.aspx?results=1
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