读取XML绑定TreeNode

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

treeview.ShowCheckBoxes = TreeNodeTypes.All;
        treeview.ShowLines = true;
        treeview.ExpandDepth = 1;
        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 = 0; 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 == "06" || item.Attributes["No"].Value == "00")
                {
                    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);
                }
            }
        }

1 void treeview_TreeNodeCheckChanged(object sender, TreeNodeEventArgs e)
2     {
3         TreeNode tn = e.Node;
4         bool IsChecked = tn.Checked;
5 
6         CheckTreeNodeParent(tn, IsChecked);
7 
8         CheckTreeNodeChildren(tn, IsChecked);
9     }

treeview_TreeNodeCheckChanged事件

 1 /// <summary>
 2     /// 选中父类节点
 3     /// </summary>
 4     /// <param name="tn"></param>
 5     /// <param name="Checked"></param>
 6     private void CheckTreeNodeParent(TreeNode tn, bool Checked)
 7     {
 8         TreeNode ptn = tn.Parent;
 9 
10         if (ptn != null)
11         {
12             if (Checked)
13             {
14                 ptn.Checked = Checked;
15                 CheckTreeNodeParent(ptn, Checked);
16             }
17             else
18             {
19                 bool HasTreeNodeChecked = HasCheckedTreeNode(ptn);
20                 if (!HasTreeNodeChecked)
21                 {
22                     ptn.Checked = Checked;
23                     CheckTreeNodeParent(ptn, Checked);
24                 }
25             }
26         }
27     }

选中父类节点

 1  private bool HasCheckedTreeNode(TreeNode tn)
 2     {
 3         bool IsChecked = false;
 4         if (tn != null)
 5         {
 6             TreeNodeCollection tns = tn.ChildNodes;
 7             if (tns != null)
 8             {
 9                 for (int i = 0; i < tns.Count; i++)
10                 {
11                     if (tns[i].Checked)
12                     {
13                         IsChecked = true;
14                         break;
15                     }
16                     else
17                     {
18                         HasCheckedTreeNode(tns[i]);
19                     }
20                 }
21             }
22         }
23 
24         return IsChecked;
25     }

判断子节点中是否还有选中的节点

 1 private void CheckTreeNodeChildren(TreeNode tn, bool Checked)
 2     {
 3         TreeNodeCollection tns = tn.ChildNodes;
 4         if (tns != null)
 5         {
 6             for (int i = 0; i < tns.Count; i++)
 7             {
 8                 tns[i].Checked = Checked;
 9 
10                 CheckTreeNodeChildren(tns[i], Checked);
11             }
12         }
13     }

选中子节点

 1 /// <summary>
 2     /// 递归绑定节点
 3     /// </summary>
 4     /// <param name="tnode">父级节点</param>
 5     /// <param name="xnode">源节点</param>
 6     private void AddNodes(TreeNode tnode, XmlNode xnode)
 7     {
 8         if (xnode.HasChildNodes)
 9         {
10             foreach (XmlNode child in xnode.ChildNodes)
11             {
12                 TreeNode tn03 = new TreeNode();
13                 tn03.Text = child.Attributes["Name"].Value;
14                 tn03.ImageUrl = child.Attributes["Icon"].Value;
15                 tn03.SelectAction = TreeNodeSelectAction.None;
16                 tnode.ChildNodes.Add(tn03);
17                 if (child.HasChildNodes)
18                 {
19                     AddNodes(tn03, child);
20                 }
21                 else
22                 {
23                     continue;
24                 }
25             }
26         }
27     }

递归绑定节点

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