js吧。。给你代码。我实现了的。。没什么问题。记得在Page_load时间写
this.TreeView1.Attributes.Add("onclick", "CheckEvent()");


JScript code
//获取元素指定tagName的父元素
function public_GetParentByTagName(element, tagName)
{
var parent = element.parentNode;
var upperTagName = tagName.toUpperCase();
//如果这个元素还不是想要的tag就继续上溯
while (parent && (parent.tagName.toUpperCase() != upperTagName))
{
parent = parent.parentNode ? parent.parentNode : parent.parentElement;
}
return parent;
}

//设置节点的父节点Cheched——该节点可访问，则他的父节点也必能访问
function setParentChecked(objNode)
{
var objParentDiv = public_GetParentByTagName(objNode,"div");
if(objParentDiv==null || objParentDiv == "undefined")
{
return;
}
var objID = objParentDiv.getAttribute("ID");
objID = objID.substring(0,objID.indexOf("Nodes"));
objID = objID+"CheckBox";
var objParentCheckBox = document.getElementById(objID);
if(objParentCheckBox==null || objParentCheckBox == "undefined")
{
return;
}
if(objParentCheckBox.tagName!="INPUT" && objParentCheckBox.type == "checkbox")
return;
objParentCheckBox.checked = true;
setParentChecked(objParentCheckBox);
}

//设置节点的子节点uncheched——该节点不可访问，则他的子节点也不能访问
function setChildUnChecked(divID)
{
var objchild = divID.children;
var count = objchild.length;
for(var i=0;i
{
var tempObj = objchild[i];
if(tempObj.tagName=="INPUT" && tempObj.type == "checkbox")
{
tempObj.checked = false;
}
setChildUnChecked(tempObj);
}
}

//设置节点的子节点cheched——该节点可以访问，则他的子节点也都能访问
function setChildChecked(divID)
{
var objchild = divID.children;
var count = objchild.length;
for(var i=0;i
{
var tempObj = objchild[i];
if(tempObj.tagName=="INPUT" && tempObj.type == "checkbox")
{
tempObj.checked = true;
}
setChildChecked(tempObj);
}
}

//触发事件
function CheckEvent()
{

var objNode = event.srcElement;

if(objNode.tagName!="INPUT" || objNode.type!="checkbox")
return;

if(objNode.checked==true)
{
setParentChecked(objNode);
var objID = objNode.getAttribute("ID");
var objID = objID.substring(0,objID.indexOf("CheckBox"));
var objParentDiv = document.getElementById(objID+"Nodes");
if(objParentDiv==null || objParentDiv == "undefined")
{
return;
}
setChildChecked(objParentDiv);
}
else
{
var objID = objNode.getAttribute("ID");
var objID = objID.substring(0,objID.indexOf("CheckBox"));
var objParentDiv = document.getElementById(objID+"Nodes");
if(objParentDiv==null || objParentDiv == "undefined")
{
return;
}
setChildUnChecked(objParentDiv);
}
}



记得给分

本文转自
http://topic.csdn.net/u/20080104/01/c1b18a8d-1cf2-4ce1-b959-5b201d8b2dc9.html