页面：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Equips.aspx.cs" Inherits="ResourceManagement.Web.Equips" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>xxxx</title>
</head>
<body>
<form id="form1" runat="server">
<asp:TreeView ID="TreeView2" runat="server"
onselectednodechanged="TreeView2_SelectedNodeChanged" ShowLines="True" SelectedNodeStyle-CssClass="div1">
</asp:TreeView>
<div runat="server" id="div1" style="display:none">
<asp:Label ID="Label33" runat="server" Text="类型："></asp:Label>
<asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>
</div>
</form>
</body>
</html>
代码：
//加载Treeview
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
string sql17 = "select distinct eq_type from equipment";
DataTable dt17 = db.getTable(sql17);
for (int i17 = 0; i17 < dt17.Rows.Count; i17++)
{
if (dt17.Rows[i17][0].ToString() != "xxx")
{
node8 = new TreeNode(dt17.Rows[i17][0].ToString());
node8.SelectAction = TreeNodeSelectAction.Expand;//此处点击文本展开
this.TreeView2.Nodes.Add(node8);
string sql18 = "select eq_name from equipment where eq_type = '" + dt17.Rows[i17][0].ToString() + "' and eq_bool ='0' ";
DataTable dt18 = db.getTable(sql18);
for (int i18 = 0; i18 < dt18.Rows.Count; i18++)
{
node9 = new TreeNode(dt18.Rows[i18][0].ToString());
node8.ChildNodes.Add(node9);
}
}
}
}
}
//弹出层：
protected void TreeView2_SelectedNodeChanged(object sender, EventArgs e)
{
//判断是否最后一个节点
if (TreeView2.SelectedNode.ChildNodes.Count == 0)
{
//判断是否有父节点
if (TreeView2.SelectedNode.Parent != null)
{
this.div1.Attributes.Add("style", "height: 51px; width: auto; top: " + 300 + "px; left: " +200 + "px; position: absolute; display:inline");//显示
}else
{
this.div1.Attributes.Add("style", "display:none");
//隐藏
}
}
}
帮我看看有什么问题
学习，学习，再学习..........
