绑定Ligerui中的ligerComboBox二级联动

$.ajax({
url: "HRHandler.ashx",
data: "bz=getDepartData",
cache: false,
type: "post",
contentType: "application/x-www-form-urlencoded; charset=UTF-8",
success: function (data) {
if (data != null) {
//生成类型 下拉必须是jason字符串
var selectdata = eval(data);
t34.setData(selectdata);

//for (var i = 0; i < selectdata.length; i++) {
//    $("#TextBox34").append("<option value='" + selectdata[i].id + "'>" + selectdata[i].text + "</option>");
//}
}
},
error: function () {
f_alert('fail', 'error')
}
});
//当选择部门的时候加载二级班组，构成联动
$("#TextBox34").change(function() {
var departId = "";
$("#TextBox34").ligerComboBox({ width: boxwidth ,
onSelected: function (newvalue)
{
departId = newvalue;

$.ajax({
url: "HRHandler.ashx",
data: "bz=getGroupData&departId=" + departId,
cache: false,
type: "post",
contentType: "application/x-www-form-urlencoded; charset=UTF-8",
success: function (data) {
var a = "[ {'id':' ','text':' '}]";
t35.setData(eval(a));

var selectdata = eval(data);
t35.setData(selectdata);
},
error: function () {
}
})
}
});
});

//联动加载部门数据到dropdownlist
case "getDepartData":
DataTable dt = EDU.DBUtility.DbHelperSQL.GetDataTable("select departed_I,departName_N from DepartmentEng");
//StringBuilder st = new StringBuilder();
//foreach (DataRow dr in dt.Rows)
//{
//    st.Append("<option value=\"" + dr["departed_I"].ToString() + "\">" + dr["departName_N"].ToString() + "</option>\n");
//}

string griddata = EDU.COMMON.PublicMethod.GetSelectJson(dt);
griddata = griddata.Replace("departName_N", "text");
griddata = griddata.Replace("departed_I", "id");

context.Response.Write(griddata);
break;

//联动加载部门下的班组数据到dropdownlist
case "getGroupData":
DataTable dtGroup = EDU.DBUtility.DbHelperSQL.GetDataTable("select G.group_I,G.groupName_N from [GroupsEng] G left join [DepartmentEng] D on G.departid_I=D.departed_I where D.departed_I=" + context.Request.Params["departId"]);
//StringBuilder stGroup = new StringBuilder();
//foreach (DataRow dr in dtGroup.Rows)
//{
//    stGroup.Append("<option value=\"" + dr["group_I"].ToString() + "\">" + dr["groupName_N"].ToString() + "</option>\n");
//}
//context.Response.Write(stGroup.ToString());

string griddataG = EDU.COMMON.PublicMethod.GetSelectJson(dtGroup);
griddataG = griddataG.Replace("groupName_N", "text");
griddataG = griddataG.Replace("group_I", "id");

context.Response.Write(griddataG);
break;