winform最简单的控件绑定

private void BindTreeView()
 2         {
 3             treeView1.Nodes.AddRange(GetChildNodes(dt, 0));
 4         }
 5 
 6         private TreeNode[] GetChildNodes(DataTable dt, int pId)
 7         {
 8             var nodes = new List<TreeNode>();
 9             var rows = dt.AsEnumerable().Where(s => Convert.ToInt32(s["pId"]) == pId);
10             foreach(var row in rows)
11             {
12                 var node = new TreeNode();
13                 node.Text = row["Name"].ToString();
14                 node.Tag = row["Tag"].ToString();
15                 node.Nodes.AddRange(GetChildNodes(dt, Convert.ToInt32(row["Tag"])));
16                 nodes.Add(node);
17             }
18             return nodes.ToArray();
19         }