asp.net1.0 TreeView

var OnInit;
var OnNodeChecked;


<!-- 这是注释 -->
function initchecknode(TreeView1)
{
    //获得需要初始化选择状态的节点的字符串.
    var selectedNodes = document.getElementById("corpList").value;
    var arrayNodes = new Array();
    arrayNodes = selectedNodes.split(",");
    var AllRootNode=new Array();
    AllRootNode=document.getElementById(TreeView1).getChildren();
    
    //初始化选择的节点
    
    findAndCheckedNodes(AllRootNode, arrayNodes, 1);
}

function findAndCheckedNodes(NodeArray, nodeDatas, level)
{
    if(parseInt(NodeArray.length)==0)
    {
        return;
    }
    else
    {
        
        for(var i=0;i<parseInt(NodeArray.length);i++)
        {
            var cNode,nodeData,nodeCheckBox;
            cNode=NodeArray[i];
            ////如果该节点在nodeDatas里则初始化checked = true;
            nodeData = cNode.getAttribute("NodeData");

            nodeCheckBox = cNode.getAttribute("CheckBox");

            if (nodeCheckBox)
            for(var j=0;j<nodeDatas.length;j++)
            {
                if(nodeDatas[j] == nodeData)
                {
                    cNode.setAttribute("checked","true");
                    //alert(nodeData);
                    break;
                }
            }
            //如果有子节点,则继续递归
            if(parseInt(cNode.getChildren().length)!=0)
                findAndCheckedNodes(cNode.getChildren(), nodeDatas, level + 1);    
        }
    }
}

function tree_oncheck(tree)
{
    var node=tree.getTreeNode(tree.clickedNodeIndex);
    var Pchecked=tree.getTreeNode(tree.clickedNodeIndex).getAttribute("checked");
    
    //alert(Pchecked);
    setcheck(node,Pchecked);
    setParent(node,Pchecked);//如果是选择那么选择其父接点.

    //alert(OnInit);
    if (OnInit)
    {
        OnInit();
    }
    FindCheckedFromNode(tree, 1);
}

function FindCheckedFromNode(node, level) 
{
    var i = 0;
    var nodes = new Array();
    nodes = node.getChildren();
   
    for (i = 0; i < nodes.length; i++) 
    {
        var cNode;
        cNode=nodes[i];
        if (cNode.getAttribute("checked"))
            AddChecked(cNode);
        //else
        //    AddUnChecked(cNode);
        if (parseInt(cNode.getChildren().length) != 0 ) 
        {
            FindCheckedFromNode(cNode, level + 1);
        }
    }
}

function AddChecked(node) 
{
    if (OnNodeChecked)
        OnNodeChecked(node);
}

function setcheck(node,Pc)
{
    var i;
    var ChildNode=new Array();
    
    ChildNode=node.getChildren();

    if(parseInt(ChildNode.length)==0)
        return;
    else
    {
        for(i=0;i<ChildNode.length;i++)
        {
            var cNode;
            cNode=ChildNode[i];
            if(parseInt(cNode.getChildren().length)!=0)
                setcheck(cNode,Pc);
            cNode.setAttribute("checked",Pc);
        }
    }
}

function setParent(node,Pc)
{
    var parentNode = node.getParent();
    if(parentNode)
    {    
        var parentNodeFather = parentNode.getParent();
        if(parentNodeFather)
        {
            setParent(parentNode,Pc);
        }
        
        //parentNode.setAttribute("checked",Pc);
        
        if(Pc)
        {
            parentNode.setAttribute("checked",Pc);
        }
        else
        {
            checkBrother(parentNode,Pc,node.getAttribute("NodeData"))
        }
    }
}

function checkBrother(parentNode,Pc,nodeData)
{
    var childNodes = new Array();
    childNodes = parentNode.getChildren();
    if(childNodes.length >0)
    {
        var bChecked = true;
        for(var i=0;i<childNodes.length;i++)
        {
            if(childNodes[i].getAttribute("checked") == true &&  childNodes[i].getAttribute("NodeData") != nodeData)
            {
                //alert(i+childNodes[i].getAttribute("Text"));
                bChecked = false;
                break;
            }
        }
        if(bChecked)
        {
            parentNode.setAttribute("checked",Pc);
        }
        else
        {
            //所有父结点选择
            setParent(parentNode,!Pc)
        }
    }
    else
    {
        parentNode.setAttribute("checked",Pc);
    }
};

CS:

private void buildPrimaryTree()
        {
            TreeView1.Attributes.Clear();
            TreeView1.Attributes.Add("oncheck", "tree_oncheck(this)");
            TreeNode currNode = new TreeNode();
            currNode.Text = "全县市";
            currNode.Expanded = true;
            currNode.CheckBox = true;
            currNode.NodeData = "-1";
            TreeNode childNode;
            TreeView1.Nodes.Add(currNode);
            DataTable dtCountry = new Comm().GetEveryCounty();
            string strCorpList = "-1,";
            foreach (DataRow dr in dtCountry.Rows)
            {
                childNode = new TreeNode();
                childNode.Text = dr["corpName"].ToString().Trim();
                childNode.NodeData = dr["corpCode"].ToString().Trim();
                childNode.CheckBox = true;
                //childNode.Checked = true;
                currNode.Nodes.Add(childNode);
                strCorpList += dr["corpCode"].ToString().Trim() + ",";
            }
            this.corpList.Value = strCorpList;
        }

客户端：
function fnDoInit()
 {
  strCorpList = "";
  document.getElementById("corpList").value = strCorpList;
 } 
 function fnDoNodeChecked(cNode)
 { 
  var nodeData = cNode.getAttribute("NodeData");
  strCorpList += nodeData + "," ;
  //alert(strCorpList);
  document.getElementById("corpList").value = strCorpList;
 }
 var strCorpList = "";
 OnInit = fnDoInit;
 OnNodeChecked = fnDoNodeChecked;  
  </script>
</HEAD>
 <body onload=" BodyOnLoad();initchecknode('TreeView1')">

相关函数和操作：
var tnode = tree.getNodeFromIndex(tree.selectedNodeIndex);
var cNode = tree.getTreeNode(tree.clickedNodeIndex);
var nodeTarget = cNode.getAttribute("Target");
var nodeData = cNode.getAttribute("NodeData");
var nodeExpanded = cNode.getAttribute("Expanded");
var childNodes = cNode.getChildren();
使视图定位到选中的节点

var tree = document.getElementById("TreeView1");
            var tnode = tree.getNodeFromIndex(tree.selectedNodeIndex);
            var node = tnode.subtree.all.item("_tntext", 0);
            node.scrollIntoView(true);