Js代码：当treeview中的父节点选中时其所有子节点自动勾选。取消父节点勾选时，子节点勾选取消。

 

<script language='javascript' type='text/javascript'>

    function OnTreeNodeChecked()

    {

        var childcount=0;

        var child=new Array

        var ele = event.srcElement;

        if(ele.type=='checkbox')

        {

            var childrenDivID = ele.id.replace('CheckBox','Nodes');

            var div = document.getElementByIdx(childrenDivID);

            if(div==null)return;

            var divchilfren=div.getElementsByTagName_r('div');

            for(var i=0;i<divchilfren.length;i++)

            {

                if(divchilfren[i].id.length>0)

                {  

                    child[childcount]=divchilfren[i].id

                    childcount++;

                }

            }

 

            var checkBoxs = div.getElementsByTagName_r('INPUT');

            for(var i=0;i<checkBoxs.length;i++)

            {

                if(checkBoxs[i].type=='checkbox')

                {

                    var checkbool=true;

                   

                    for(var j=0;j<child.length;j++)

                    {       

                        var childreninput = document.getElementByIdx(child[j]).getElementsByTagName_r('INPUT');

                        for(var n=0;n<childreninput.length;n++)

                        {

                            if(childreninput[n]==checkBoxs[i])

                            {               

                                checkbool=false;

                                continue;

                            }               

                        }

                       

                       if(document.getElementByIdx(child[j].replace('Nodes','CheckBox'))==checkBoxs[i])

                        {

                            checkbool=false;

                        }           

                    }

                   

                   

                    if(checkbool)

                    {

                        checkBoxs[i].checked=ele.checked;

                    }

                }

            }

        }

    }

    </script>

 

页面：chNode = new TreeNode();

                chNode.ShowCheckBox = true;

设置显示checkbox,,，