protected void TvClass_Created() { DataTable dataTable = DocumentAction.FilterDocumentClass(this.FilterField); TreeNode treeNode = new TreeNode(); treeNode.Text = "会议分类"; treeNode.NavigateUrl = ""; treeNode.Target = "TemplateList"; this.TVClass.Nodes.Add(treeNode); foreach (DataRow dataRow in dataTable.Rows) { TreeNode treeNode2 = new TreeNode(); treeNode2.Text = dataRow["ClassName"].ToString(); treeNode2.NavigateUrl = "TemplateList.aspx?cid=" + dataRow["ClassID"].ToString(); treeNode2.Target = "TemplateList"; treeNode.Nodes.Add(treeNode2); } }