http://www.meizz.com/Web/Web.asp
这个页的底部有段梅花雪树的示例代码,为了让数据填充,我修改如下:<script language="JavaScript">
var tree;
function ShowTree(x,y,z,id)
{
tree = new MzTreeView("tree");
tree.setIconPath("jsimg/");
tree.nodes[""+x+"_"+y+""] = "text:"+z+"; data:id="+id+"";
tree.setURL("page_right.php");
tree.setTarget("CNTFRAME");
document.write(tree.toString()); //Òà¿ÉÓÃ obj.innerHTML = tree.toString();
}
ShowTree(0,5,"tree","0");
</script>
然后从数据库中读数据(PHP代码),对查询出的所有记录进行一次遍历,在遍历中这样写:
$n=strlen($arr[0]); //取出来的ID
if ($n==2) //取出来的ID长度如果为2,一级目录,设node.id为5
{
$a=5;
}
else if ($n==4) //取出来的ID长度如果为4,二级
{
$a=substr($arr[0],0,2);//取出来的ID长度如果为6,三级
}
else if ($n==6)
{
$a=substr($arr[0],0,4);
}
?>
<script language="JavaScript">ShowTree(<?echo $a?>,<?echo $arr[0]?>,"<?echo $arr[1]?>",<?echo $arr[0]?>)</script>
<?现在的问题是二级目录显示不出来,三级当然也不能显示了,ShowTree()这个函数被传递的参数千真万确都是正确的,循环的过程也是正确的,每循环一次,ShowTree()函数都会被赋予下面的值:
ShowTree(0,5,"tree","0");
ShowTree(5,10,"tree","0");
ShowTree(5,20,"tree","0");
......
ShowTree(10,1010,"tree","0");
......但是输出到页面上就只有根节点了,请问是怎么回事?
这个页的底部有段梅花雪树的示例代码,为了让数据填充,我修改如下:<script language="JavaScript">
var tree;
function ShowTree(x,y,z,id)
{
tree = new MzTreeView("tree");
tree.setIconPath("jsimg/");
tree.nodes[""+x+"_"+y+""] = "text:"+z+"; data:id="+id+"";
tree.setURL("page_right.php");
tree.setTarget("CNTFRAME");
document.write(tree.toString()); //Òà¿ÉÓÃ obj.innerHTML = tree.toString();
}
ShowTree(0,5,"tree","0");
</script>
然后从数据库中读数据(PHP代码),对查询出的所有记录进行一次遍历,在遍历中这样写:
$n=strlen($arr[0]); //取出来的ID
if ($n==2) //取出来的ID长度如果为2,一级目录,设node.id为5
{
$a=5;
}
else if ($n==4) //取出来的ID长度如果为4,二级
{
$a=substr($arr[0],0,2);//取出来的ID长度如果为6,三级
}
else if ($n==6)
{
$a=substr($arr[0],0,4);
}
?>
<script language="JavaScript">ShowTree(<?echo $a?>,<?echo $arr[0]?>,"<?echo $arr[1]?>",<?echo $arr[0]?>)</script>
<?现在的问题是二级目录显示不出来,三级当然也不能显示了,ShowTree()这个函数被传递的参数千真万确都是正确的,循环的过程也是正确的,每循环一次,ShowTree()函数都会被赋予下面的值:
ShowTree(0,5,"tree","0");
ShowTree(5,10,"tree","0");
ShowTree(5,20,"tree","0");
......
ShowTree(10,1010,"tree","0");
......但是输出到页面上就只有根节点了,请问是怎么回事?
现在下面的代码可以输出树的二级目录:
<script language="JavaScript">
var tree = new MzTreeView("tree");
tree.setIconPath("jsimg/");
function ShowTree()
{
tree.nodes["0_55"] = "text:111";
tree.nodes["55_1001"] = "text:111; data:id=100";
tree.setURL("default.htm");
tree.setTarget("MzMain");
document.write(tree.toString());
}
ShowTree();
</script>下面的就不能输出二级的,只能输出一级的:
<script language="JavaScript">
var tree;
function ShowTree(x,y,z,id)
{
tree = new MzTreeView("tree");
tree.setIconPath("jsimg/");
tree.nodes[""+x+"_"+y+""] = "text:"+z+"; data:id="+id+"";
tree.setURL("page_right.php");
tree.setTarget("CNTFRAME");
document.write(tree.toString()); //Òà¿ÉÓÃ obj.innerHTML = tree.toString();
}
ShowTree(0,55,"tree","0");
ShowTree(55,1001,"tree","0");
</script>现在问题简单吧?和PHP或.net一点关系都没有了