private void TreeViewAccounting_DragDrop(object sender, DragEventArgs e)
{
// Retrieve the client coordinates of the drop location.
Point targetPoint = TreeViewAccounting.PointToClient(new Point(e.X, e.Y));
// Retrieve the node at the drop location.
TreeNode targetNode = TreeViewAccounting.GetNodeAt(targetPoint);
// 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)
{
Data.Map.MoveNode((NodeAddress)draggedNode.Tag, (NodeAddress)targetNode.Tag);
SetUpTree(Data.Map);
TreeViewAccounting.ResetGraphics();
}
}
