.net用TreeView实现CheckBoxes全选 反选 子节选中 传值

要实现用treeview绑定数据库以及checkbox联级选中获取值  看到好多都是js和jQuery的。

个人对jQuery不是很熟悉   所以用代码.cs代码写的。

<table width="700" border="0" cellspacing="0" cellpadding="0">
            <tr>
                <td width="300" valign="top" style="text-align: left">
                    <br />
                    <asp:TreeView ID="TreeView1" runat="server" Height="168px" ImageSet="Simple" 
            Width="147px" ShowCheckBoxes="All" ShowLines="True" OnTreeNodeCheckChanged="TreeView1_TreeNodeCheckChanged">
            <ParentNodeStyle Font-Bold="False" />
            <HoverNodeStyle Font-Underline="True" ForeColor="#5555DD" />
            <SelectedNodeStyle Font-Underline="True" ForeColor="#5555DD" 
                HorizontalPadding="0px" VerticalPadding="0px" />
            <NodeStyle Font-Names="Tahoma" Font-Size="10pt" ForeColor="Black" 
                HorizontalPadding="0px" NodeSpacing="0px" VerticalPadding="0px" />
        </asp:TreeView>
                </td>
                <td valign="top">
                    <asp:Button ID="Button1" runat="server" Text="获得值" OnClick="Button1_Click"/>
                    <asp:Label ID="Label1" runat="server" Text=""></asp:Label>
                </td>
            </tr>
        </table>

 protected void Page_Load(object sender, EventArgs e)
        {
            TreeView1.EnableClientScript = true;
            TreeView1.Attributes.Add("onclick", "postBackByObject(event)");

            if (!IsPostBack)
            {

                DataSet ds = new TaxiRadarBasicInfo.BLL.TaxiCityCode().GetRegionAllList();
                TreeView treeview = new TreeView();

                foreach (DataRow row in ds.Tables[0].Rows)
                {
                    TreeNode trP = new TreeNode();
                    trP.Text = row["CityName"].ToString();
                    trP.Value = row["CityCode"].ToString();
                    //TreeCAdd(trP, row["CityCode"].ToString());
                    trP.Expanded = false;
                    TreeView1.Nodes.Add(trP);
                    TreeCAdd(trP);
                }
            }
        }

        public void TreeCAdd(TreeNode trP)
        {
            string CityCode = trP.Value;
            DataSet ds = new TaxiRadarBasicInfo.BLL.TaxiCityCode().GetCarRegionByTerminalSN(CityCode);

            foreach (DataRow row in ds.Tables[0].Rows)
            {
                TreeNode trC = new TreeNode();
                trC.Text = row["Brand"].ToString();
                trC.Value = row["TerminalSN"].ToString();
                trP.ChildNodes.Add(trC);
            }
        }

        protected void TreeView1_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)
        {
            RecursiveCheckCheckBox(e.Node, e.Node.Checked, true);
            TreeNode current = e.Node;
            while (!current.Checked && current.Parent != null && !IsChildNodesChecked(current.Parent))
            {
                current.Parent.Checked = false;
                current = current.Parent;
            }
            if (e.Node.Checked)
            {
                RecursiveCheckCheckBox(e.Node, e.Node.Checked, false);
            }
        }


        private bool IsChildNodesChecked(TreeNode n)
        {
            bool result = false;
            if (n.ChildNodes.Count == 0)
            {
                result = n.Checked;
            }
            foreach (TreeNode t in n.ChildNodes)
            {
                if (result |= t.Checked)
                {
                    break;
                }
            }
            return result;
        }


        private void RecursiveCheckCheckBox(TreeNode n, bool isChecked, bool topDown)
        {
            if (topDown)
            {
                foreach (TreeNode l in n.ChildNodes)
                {
                    l.Checked = isChecked;
                    if (l.ChildNodes.Count != 0)
                    {
                        RecursiveCheckCheckBox(l, isChecked, topDown);
                    }
                }
            }
            else
            {
                n.Checked = isChecked;
                if (n.Parent != null)
                {
                    RecursiveCheckCheckBox(n.Parent, isChecked, false);
                }
            }
        }

 protected void Button1_Click(object sender, EventArgs e)
        {
            string powerstr = "#";

            powerstr = powerstr + getCheckedNodeValue(TreeView1.Nodes);

            Label1.Text = powerstr;
        }


        public string getCheckedNodeValue(TreeNodeCollection aNodes)
        {
            string powerstr = "";

            for (int i = 0; i < aNodes.Count; i++)
            {

                if (aNodes[i].Checked == true)
                {
                    powerstr = powerstr + aNodes[i].Value + "#";
                }

                if (aNodes[i].ChildNodes.Count > 0)
                {
                    powerstr = powerstr + getCheckedNodeValue(aNodes[i].ChildNodes);
                }
            }

            return powerstr;
        }

dataset后面是自己写的方法 从数据库里绑定的。

因为要做这个功能，结合了前辈写的代码贴一下。