Javascript 生成无限下拉列表


//公司二维数组数据源
Office = [
["Dept", "ParentDept"],
["业务部", "0"],
["技术部", "0"],
["市场部", "0"],
["www.yongfa365.com", "业务部"],
["业务部小杨", "业务部"],
["业务部小菜", "业务部"],
["技术部老柳", "技术部"],
["技术部老杨", "技术部"],
["技术部老菜", "技术部"],
["市场部柳先生", "市场部"],
["市场部杨先生", "市场部"],
["市场部菜鸟", "市场部"]
]
//省市三维数组数据源
City3 = [
["Dept", "ParentId", "Id"],
["北京", "0", "010"],
["山西", "0", "0359"],
["朝阳区", "010", "001"],
["海淀区", "010", "002"],
["豆各庄", "001", "101"],
["十里堡", "001", "102"],
["中关村", "002", "201"],
["上地", "002", "202"],
["运城地区", "0359", "301"],
["太原市", "0359", "302"],
["永济市", "301", "311"],
["小区", "302", "312"]
];
//FillSelectTree(“nowhaha”, City3, “0″, “311″, -1)
//Select控件ID,数据源,父级值,选中值,第几级(用来产生分隔符)
function FillSelectTree(SelectId, ArrObj, ParentValue, SelectedValue, NowI) {
    StrObj = eval(document.getElementById(SelectId));
    NowI++;
    //判断它是二级数据源,还是三级
    if (ArrObj[0].length == 2)
    { ArrNum = 0; }
    else
    { ArrNum = 2; }
    //生成所有Option
    for (var i = 0; i < ArrObj.length; i++) {
        if (ArrObj[i][1] == ParentValue) {
            StrObj.options[StrObj.length] = new Option(String(“  ”, NowI) + ArrObj[i][0], ArrObj[i][ArrNum]);
            //选中默认值
            if (ArrObj[i][ArrNum] == SelectedValue) {
                StrObj.options[StrObj.length - 1].selected = true;
            }
            //遍历
            FillSelectTree(SelectId, ArrObj, ArrObj[i][ArrNum], SelectedValue, NowI);
        }
    }
}
//复制字符串多少次
function String(str, nowi) {
    strtemp = “”;
    for (var i = 0; i < nowi; i++) {
        strtemp += str;
    }
    return strtemp;
}

完整的网页代码如下:


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