<select class="b-select" id="location-province" name="Province" default="@Model.Province">XXXXXX</select>

---

//根据条件，查到对应的省或市或区下拉框选项
function LoadListProvinceData(parentId, objTarget) {
if (ListProvinceData == null) {

LoadDivisionsList();
}

var html = defaultOption;
if (ListProvinceData != null) {

$.each(ListProvinceData, function (index, item) {
if (parentId == item.ParentId) {

html += '<option id="' + item.Id + '" value="' + item.Id + '">' + item.NodeName + '</option>';
}
});
}

//objTarget.html(html);
document.getElementById(objTarget).innerHTML = html;
}

给XXX赋值用下面的方法不兼容IE6\IE7\IE8\IE9

document.getElementById(objTarget).innerHTML = html;

---

更改为下面的赋值方法

//根据条件，查到对应的省或市或区下拉框选项
function LoadListProvinceData(parentId, objTarget) {
if (ListProvinceData == null) {

LoadDivisionsList();
}

document.getElementById(objTarget).length = 0;
document.getElementById(objTarget).options.add(new Option("请选择", ""));
if (ListProvinceData != null) {

$.each(ListProvinceData, function (index, item) {
if (parentId == item.ParentId) {
document.getElementById(objTarget).options.add(new Option(item.NodeName, item.Id));
}
});
}
}