读取XML绑定TreeNode

 <asp:TreeView ID="treeview" OnClick="TreeViewCheckBox_Click()"  runat="server">
     </asp:TreeView>

treeview.ShowCheckBoxes = TreeNodeTypes.All;
        treeview.ShowLines = true;
        treeview.ExpandDepth = ;
        treeview.TreeNodeCheckChanged += new TreeNodeEventHandler(treeview_TreeNodeCheckChanged);
        if (!IsPostBack)
        {
            string url = "../../Xml/LayerConfig11.xml";
            url = Server.MapPath(url);
            XmlDocument xDoc = new XmlDocument();
            xDoc.Load(url);

            XmlNode fn = xDoc.DocumentElement;
            TreeNode tn = new TreeNode();
            tn.Text = fn.Attributes["Name"].Value;
            tn.ImageUrl = fn.Attributes["Icon"].Value;
            tn.SelectAction = TreeNodeSelectAction.None;
            treeview.Nodes.Add(tn);

            for (int i = ; i < treeview.Nodes.Count; i++)
            {
                if (treeview.Nodes[i].Checked)
                {
                    treeview.Nodes[i].Parent.Checked = true;
                }
            }
            XmlNodeList nodes = fn.ChildNodes;
            foreach (XmlNode item in nodes)
            {

                if (item.Attributes["No"].Value == "" || item.Attributes["No"].Value == "")
                {
                    TreeNode tn02 = new TreeNode();
                    tn02.Text = item.Attributes["Name"].Value;
                    tn02.ImageUrl = item.Attributes["Icon"].Value;
                    tn02.SelectAction = TreeNodeSelectAction.None;
                    tn.ChildNodes.Add(tn02);
                    AddNodes(tn02, item);
                }
            }
        }

 void treeview_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)
     {
         TreeNode tn = e.Node;
         bool IsChecked = tn.Checked;

         CheckTreeNodeParent(tn, IsChecked);

         CheckTreeNodeChildren(tn, IsChecked);
     }

treeview_TreeNodeCheckChanged事件

 /// <summary>
     /// 选中父类节点
     /// </summary>
     /// <param name="tn"></param>
     /// <param name="Checked"></param>
     private void CheckTreeNodeParent(TreeNode tn, bool Checked)
     {
         TreeNode ptn = tn.Parent;

         if (ptn != null)
         {
             if (Checked)
             {
                 ptn.Checked = Checked;
                 CheckTreeNodeParent(ptn, Checked);
             }
             else
             {
                 bool HasTreeNodeChecked = HasCheckedTreeNode(ptn);
                 if (!HasTreeNodeChecked)
                 {
                     ptn.Checked = Checked;
                     CheckTreeNodeParent(ptn, Checked);
                 }
             }
         }
     }

选中父类节点

  private bool HasCheckedTreeNode(TreeNode tn)
     {
         bool IsChecked = false;
         if (tn != null)
         {
             TreeNodeCollection tns = tn.ChildNodes;
             if (tns != null)
             {
                 for (int i = ; i < tns.Count; i++)
                 {
                     if (tns[i].Checked)
                     {
                         IsChecked = true;
                         break;
                     }
                     else
                     {
                         HasCheckedTreeNode(tns[i]);
                     }
                 }
             }
         }

         return IsChecked;
     }

判断子节点中是否还有选中的节点

 private void CheckTreeNodeChildren(TreeNode tn, bool Checked)
     {
         TreeNodeCollection tns = tn.ChildNodes;
         if (tns != null)
         {
             for (int i = ; i < tns.Count; i++)
             {
                 tns[i].Checked = Checked;

                 CheckTreeNodeChildren(tns[i], Checked);
             }
         }
     }

选中子节点

 /// <summary>
     /// 递归绑定节点
     /// </summary>
     /// <param name="tnode">父级节点</param>
     /// <param name="xnode">源节点</param>
     private void AddNodes(TreeNode tnode, XmlNode xnode)
     {
         if (xnode.HasChildNodes)
         {
             foreach (XmlNode child in xnode.ChildNodes)
             {
                 TreeNode tn03 = new TreeNode();
                 tn03.Text = child.Attributes["Name"].Value;
                 tn03.ImageUrl = child.Attributes["Icon"].Value;
                 tn03.SelectAction = TreeNodeSelectAction.None;
                 tnode.ChildNodes.Add(tn03);
                 if (child.HasChildNodes)
                 {
                     AddNodes(tn03, child);
                 }
                 else
                 {
                     continue;
                 }
             }
         }
     }

递归绑定节点