请教一个treeview无刷新遍历以及获取选中值

Question

问题如题
多谢指教

Answer 1

有复选框，所以会有选中问题
最好是用js遍历，或者用ajax也可以
但是要无刷新

Answer 2

function CheckOn(obj)
{
    var div1 = WebForm_GetParentByTagName(obj,'DIV');
    if(div1 != null)
    {
        var checkBoxs = div1.getElementsByTagName('INPUT'); 
        var parentCheckBoxID = div1.id.replace('Nodes','CheckBox');
        
        var parentCheckBox = document.getElementById(parentCheckBoxID);
        
        var i = 0;
        var count = 0;
        for(i=0;i<checkBoxs.length;i++) 
        {
            if(checkBoxs[i].type=='checkbox')
            {
                if(checkBoxs[i].checked==false)
                {           
                    count++;
                    //break;
                }
            }
            else
            {
                alert("The node is not a checkbox!");
                return;
            }
        }
        if(parentCheckBox!=null)
        {
            if(count == checkBoxs.length)
            {
                parentCheckBox.checked = false;
                parentCheckBox.disabled= false;
                
                CheckOn(parentCheckBox);
            }
            else if(count > 0)
            {
                parentCheckBox.checked = true;
                parentCheckBox.disabled = true;
                
                CheckOn(parentCheckBox);
            }
            else
            {
                parentCheckBox.checked = true;
                parentCheckBox.disabled= false;
                
                CheckOn(parentCheckBox);
            } 
        }     
    }
}function OnTreeNodeChecked() 
{ 
    var ele = event.srcElement;
    if(ele.type=='checkbox') 
    { 
        var childrenDivID = ele.id.replace('CheckBox','Nodes');
        var div = document.getElementById(childrenDivID);         if(div != null)
        {
            var checkBoxs = div.getElementsByTagName('INPUT'); 
            for(var i=0;i<checkBoxs.length;i++) 
            { 
                if(checkBoxs[i].type=='checkbox') 
                checkBoxs[i].checked=ele.checked; 
            }
        }
        CheckOn(ele);
   }
   
}<asp:TreeView ID="tv" runat="server" ShowCheckBoxes="All"  ShowLines="True">
tv.Attributes.Add("OnClick", "OnTreeNodeChecked()");

Answer 3

    private void AddDirectories(TreeNode node)
        {
            //node.Expand();
            node.Nodes.Clear();
            listView1.Items.Clear();
            string strPath = node.FullPath; 
            try
            {
                strPath = strPath.Remove(0, 5);
                finalpath = strPath + "\\";
            }
            catch
            {
                if (strPath == "我的电脑")
                {
                    Get_Drivers();
                    finalpath = "";
                    toolStripTextBox1.Text = strPath;
                    return;
                }
                strPath = strPath.Remove(0, 4);
            }
            DirectoryInfo dirinfo;
            DirectoryInfo[] dirinfos;
            FileInfo[] files;
            try
            {
                dirinfo = new DirectoryInfo(strPath);//获得当前目录
                dirinfos = dirinfo.GetDirectories();//返回当前目录子目录
                files = dirinfo.GetFiles();
            }
            catch
            {
                try
                {
                    strPath = Environment.GetFolderPath(Environment.SpecialFolder.Personal) + "\\" + strPath;
                    dirinfo = new DirectoryInfo(strPath);
                    dirinfos = dirinfo.GetDirectories();
                    files = dirinfo.GetFiles();
                    finalpath = strPath +"\\";
                }
                catch
                {
                    return;
                }
            }
            foreach (DirectoryInfo dir in dirinfos)
            {
                TreeNode tnDir = new TreeNode(dir.Name, 2, 3);
                node.Nodes.Add(tnDir);
                ListViewItem listTd = new ListViewItem(dir.Name, 2);
                listView1.Items.Add(listTd);
            }
            foreach (FileInfo file in files)
            {
                ListViewItem listTd = new ListViewItem(file.Name, 3);
                listView1.Items.Add(listTd);
            }
            toolStripTextBox1.Text = finalpath.Remove(finalpath.Length-1,1);
        }选中值是这个吧
  listview.selectitems[0].text

Answer 4

我要的是遍历Treeview获取复选框被选中节点的 value值对楼上写的不是很明白

Answer 5

结点的选中属性里调JAVASCRIPT方法，javaScript里写ajax机制