private void RulesTreeView_DragDrop(object sender, DragEventArgs e)
{
Point targetPoint = RulesTreeView.PointToClient(new Point(e.X, e.Y));
TreeNode targetNode = RulesTreeView.GetNodeAt(targetPoint);
TreeNode draggedNode = (TreeNode)e.Data.GetData(typeof(TreeNode));
if (Tools.IsSubnodeOf(draggedNode, targetNode))
{
e.Effect = DragDropEffects.None;
return;
}
RulesTreeView.Nodes.Remove(draggedNode);
if (targetNode != null)
{
targetNode.Nodes.Insert(0, draggedNode);
}
else
{
RulesTreeView.Nodes.Add(draggedNode);
}
RulesTreeView.SelectedNode = draggedNode;
RestoreSelectedRule();
e.Effect = DragDropEffects.Move;
}
private void RulesTreeView_DragOver(object sender, DragEventArgs e)
{
Point targetPoint = RulesTreeView.PointToClient(new Point(e.X, e.Y));
TreeNode targetNode = RulesTreeView.GetNodeAt(targetPoint);
RulesTreeView.SelectedNode = targetNode;
TreeNode draggedNode = (TreeNode)e.Data.GetData(typeof(TreeNode));
if (Tools.IsSubnodeOf(draggedNode, targetNode))
{
e.Effect = DragDropEffects.None;
return;
}
e.Effect = DragDropEffects.Move;
}