1  private void BindTreeView(string groupid)
 2         {
 3             TreeNode tn = new TreeNode("小组成员");
 4             TreeNode tns = new TreeNode("学员信息");
 5             GroupList = BLL.Info_GroupsBLL.GetAllInfo_Group(groupid);
 6             treeView1.Nodes.Clear();
 7 
 8             if (GroupList.Count > 0)
 9             {
10                 for (int i = 0; i < GroupList.Count; i++)
11                 {
12                     tns.Name = GroupList[i].StudentNo.ToString();
13                     tns.Text = "角色：" + GroupList[i].StudentRole.Trim() + " 姓名：" + GroupList[i].SsName.Trim();
14                     tn.Nodes.Add(tns);
15                 }
16                 treeView1.Nodes.Add(tn);
17             }
18         }

1  private void treeView1_DoubleClick(object sender, EventArgs e)
2         {
3             if (treeView1.SelectedNode != null && treeView1.SelectedNode.Name.ToString() != "")
4             {
5                 _AnswerPerson = treeView1.SelectedNode.Name;
6                 MessageBox.Show("当前作答人：" + _AnswerPerson, "提示信息", MessageBoxButtons.OKCancel);
7             }
8         }