.net环境下用C#语言如何操纵treeview这样的控件？

Question

哪位可以给一段全面操作treeview的代码看看，谢谢啦！

Answer 1

//给你段代码,下午无聊写的,不太正规
//功能是从文本文件中读取通话记录然后添加到Treeview按号码分组  StreamReader callReader = new FileInfo(call).OpenText();            string callline = null;            while ((callline = callReader.ReadLine()) != null)
            {
                string receiveorsend = callline.Split(' ')[0];                TreeNode rsnodeexist = null;                foreach (TreeNode rsnode in callroot.Nodes)
                {
                    if (rsnode.Text == receiveorsend)
                    {
                        rsnodeexist = rsnode;
                        break;
                    }
                }                if (rsnodeexist == null)
                {
                    rsnodeexist = new TreeNode();
                    rsnodeexist.Text = receiveorsend;                    callroot.Nodes.Add(rsnodeexist);
                }                string phonenumber = callline.Split(' ')[1];                TreeNode pnnodeexist = null;                foreach (TreeNode pnnode in rsnodeexist.Nodes)
                {
                    if (pnnode.Text == phonenumber)
                    {
                        pnnodeexist = pnnode;
                        break;
                    }
                }
                if (pnnodeexist == null)
                {
                    pnnodeexist = new TreeNode();
                    pnnodeexist.Text = phonenumber;                    rsnodeexist.Nodes.Add(pnnodeexist);
                }
                TreeNode rs = new TreeNode();
                rs.Text = callline.Replace(receiveorsend, "");                pnnodeexist.Nodes.Add(rs);
            }            callReader.Close();