asp.net 2.0 权限树的控制_Asp.Net开发技巧

时间：2010-09-15 来源：缘分星空

做权限的时候,主要实现如下功能
    1、该节点可以访问，则他的父节点也必能访问；
　　2、该节点可以访问，则他的子节点也都能访问；
　　3、该节点不可访问，则他的子节点也不能访问。
    使用带CheckBox的数型结构能得到很好的用户体验,可是编程的难度也是有点增加,如果全部有服务端来完成,那点下刷下,肯定不行,只能使用javascript,javascript调试的时候郁闷的很,一个字类,还有郁闷的递归,麻烦
我以前是使用以下该方法
<script language="javascript">
<!--
        //初始化节点
        initchecknode(document.all("tvItemClientID").value,document.all("checked").value)

            //初始化选中节点
            function initchecknode(tree,tvvalue)
            {
                //获得需要初始化选择状态的节点的字符串.
                var selectedNodes = tvvalue;
                var arrayNodes = new Array();
                arrayNodes = selectedNodes.split(",");
                var AllRootNode=new Array();
                AllRootNode=document.getElementById(tree).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);
                    }
                }
            }
//-->
//oncheck事件
function tree_oncheck(tree)
{
var i;
var node=tree.getTreeNode(tree.clickedNodeIndex);
var Pchecked=tree.getTreeNode(tree.clickedNodeIndex).getAttribute("checked");
setcheck(node,Pchecked);
setParent(node,Pchecked);
//window.alert(Pchecked);
document.all.checked.value = "";
if (tree.getChildren().length > 0)
{
    for (i=0;i<=tree.getChildren().length-1;i++)
    {
        if (tree.getChildren()[i].getAttribute("Checked"))
        {
             AddChecked(tree.getChildren()[i]);
        }
        FindCheckedFromNode(tree.getChildren()[i]);
    }
}
}
//设置子节点选中

//设置子节点选中/取消;

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