两个客户端操作TreeView节点CheckBox的小例子

下面是修改后详细代码:

<script language="javascript">

            //初始化选中节点
            function initchecknode()
            {
                //获得需要初始化选择状态的节点的字符串.
                var selectedNodes = document.all.checkedNodes.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);
            }

            //根据已选择的节点的字符串初始化选择的节点
            function findAndCheckedNodes(NodeArray,nodeDatas)
            {
                //alert(NodeArray.length);
                 if(parseInt(NodeArray.length)==0)
                 {
                    return;
                }
                else
                {
                    for(var i=0;i<parseInt(NodeArray.length);i++)
                    {
                        var cNode,nodeData;
                        cNode=NodeArray[i];
                        ////如果该节点在nodeDatas里则初始化checked = true;
                        nodeData = cNode.getAttribute("NodeData");
                        for(var j=0;j<nodeDatas.length;j++)
                        {
                            if(nodeDatas[j] == nodeData)
                            {
                                cNode.setAttribute("checked","true");
                                break;
                            }
                        }
                        //如果有子节点,则继续递归
                        if(parseInt(cNode.getChildren().length)!=0)
                        findAndCheckedNodes(cNode.getChildren(),nodeDatas);    
                    }
                }
            }
            
            //节点的oncheck事件
            function tree_oncheck(tree)
            {
                var node=tree.getTreeNode(tree.clickedNodeIndex);
                var Pchecked=tree.getTreeNode(tree.clickedNodeIndex).getAttribute("checked");
                setcheck(node,Pchecked);
                document.all.checkedNodes.value="";
                document.all.unchecked.value="";
                FindCheckedFromNode(TreeView1);
            }
            //设置子节点选中
            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);
                    }
                }
            }
            //获取所有节点状态
            function FindCheckedFromNode(node) 
            {
                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);
                    }
                }
            }
            //添加选中节点
            function AddChecked(node) 
            {
                document.all.checkedNodes.value += node.getAttribute("NodeData");
                document.all.checkedNodes.value += ',';
            }
            //添加未选中节点
            function AddUnChecked(node)
            {
                document.all.unchecked.value += node.getAttribute("NodeData");
                document.all.unchecked.value += ',';
            }
            
        </script>