How to Treeview node drag & drop to reorder node in same level

[Sudip_inn]

HI,


my code example.

private void Form1_Load(object sender, EventArgs e)
{
treeView1.AllowDrop = true;
treeView1.ExpandAll();
}

private void treeView1_ItemDrag(object sender, ItemDragEventArgs e)
{
DoDragDrop(e.Item, DragDropEffects.Move);
}

private void treeView1_DragEnter(object sender, DragEventArgs e)
{
e.Effect = DragDropEffects.Move;
}

private void treeView1_DragDrop(object sender, DragEventArgs e)
{
// Retrieve the client coordinates of the drop location.
Point targetPoint = treeView1.PointToClient(new Point(e.X, e.Y));

// Retrieve the node at the drop location.
TreeNode targetNode = treeView1.GetNodeAt(targetPoint).Parent;

// Retrieve the node that was dragged.
TreeNode draggedNode = (TreeNode)e.Data.GetData(typeof(TreeNode));

// Confirm that the node at the drop location is not
// the dragged node and that target node isn't null
// (for example if you drag outside the control)
if (!draggedNode.Equals(targetNode) && targetNode != null)
{
// Remove the node from its current
// location and add it to the node at the drop location.
draggedNode.Remove();
targetNode.Nodes.Add(draggedNode);

// Expand the node at the location
// to show the dropped node.
targetNode.Expand();
}
}

see the screen shot





1) a problem i faced that i am not being able to reorder any node in same level. as a example Root1 has 3 nodes but when i try to reorder means up/down of any node in same level that is not getting possible. so please share code which allow Node to reorder means up/down of any node in same level.

so please share code example for my above questions. thanks

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