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<html>
<head>
<title>改进过的一个联动控件，使用更加简单方便</title>
<meta name="Generator" content="EditPlus">
<meta name="Author" content="iuhxq,qq:4111852,http://www.svnhost.cn">
<meta name="Keywords" content="联动">
<meta name="Description" content="改进过的一个联动控件，使用更加简单方便">
</head>
<body>
<table>
<tr>
<td>1</td>
<td>2</td>
<td>3</td>
</tr>
<tr>
<td><span id="select1"></span></td>
<td><input type="button" value="设置值" onclick="liandong.SetValue(1,3,7,13,16,18);"></td>
<td><input type="button" value="取值" onclick="alert(liandong.GetValue());"></td>
</tr>
<tr>
<td>4</td>
<td>5</td>
<td>6</td>
</tr>
</table>
<script language="JavaScript">
<!--
function LianDong(arr, sel, value)
{
sel = document.getElementById(sel);
this.sub = function (i,pid)
{
while(sel.childNodes.length-1>=i)
{
sel.removeChild(sel.childNodes[sel.childNodes.length-1]);
}
var tmp;
var created = false;
for ( var j = 0; j < arr.length; j++)
{
if (arr[j][1] == pid)
{
if (created==false)
{
created = true;
tmp = document.createElement("select");
tmp.setAttribute("id", "liandong_" + i);
//tmp.setAttribute("multiple", "multiple");
tmp.options[tmp.length] = new Option("请选择", "-1");
tmp.onchange = function()
{
p(parseInt(tmp.getAttribute("id").replace("liandong_",""))+1,tmp.value);
};
sel.appendChild(tmp);
}
tmp.options[tmp.options.length] = new Option(arr[j][2], arr[j][0]);
}
}
}
var p = this.sub;
this.SetValue = function()
{
for (var i=0; i<arguments.length; i++)
{
sel.childNodes[i].value = arguments[i];
this.sub(i+1, arguments[i]);
}
}
this.GetValue = function()
{
var value = "";
for (var i=0; i<sel.childNodes.length; i++)
{
var obj = sel.childNodes[i];
for (var j=0; j<obj.options.length; j++)
{
if (obj.options[j].selected)
{
value += obj.options[j].value + ",";
break;
}
}
}
return value;
}
this.sub(0,0);
}
//利用ASP，ASP.NET，PHP等语言输出下边数据和liandong定义即可
var array=new Array();
//array[索引] = new Array("当前ID", "父ID", "名称");
array[0] = new Array("1", "0", "1");
array[1] = new Array("2", "0", "2");
array[2] = new Array("3", "1", "1，3");
array[3] = new Array("4", "1", "1，4");
array[4] = new Array("5", "2", "2，5");
array[5] = new Array("6", "2", "2，6");
array[6] = new Array("7", "3", "3，7");
array[7] = new Array("8", "3", "3，8");
array[8] = new Array("9", "3", "3，9");
array[9] = new Array("10", "1", "1，10");
array[10] = new Array("11", "1", "1，11");
array[11] = new Array("12", "2", "2，12");
array[12] = new Array("13", "7", "7，13");
array[13] = new Array("15", "7", "7，14");
array[14] = new Array("16", "13", "13，16");
array[15] = new Array("17", "13", "13，17");
array[16] = new Array("18", "16", "16，18");
array[17] = new Array("19", "10", "10，19");
//var liandong = new LianDong(数据, 显示容器的ID)，该定义最好放在window.onload里运行。
var liandong = new LianDong(array, "select1")
//-->
</script>
</body>
</html>
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