private void UserManager_Load(object sender, System.EventArgs e) { TreeNode node = new TreeNode(); node.Text = "技术中心"; IList deps = DepartmentData.LoadDepartments(); foreach (object o in deps) { hbm.Department dep = (hbm.Department)o; TreeNode node1 = new TreeNode(); node1.Text = dep.DepartmentName; node.Nodes.Add(node1); } treeView1.Nodes.Add(node); treeView1.ExpandAll(); }