jquery + json 动态创建复杂表格table

function SetSubTable() {
var obj = jQuery.parseJSON($("#SubJsonStrValue").val());
window.ALLPARAMTERS = obj;
var row_str = "";
var span_num = 1
for (var i = 0; i < obj.length; i++) {
if (obj[i].ParamNames.length > 0) {
row_str += '<tr><td rowspan="' + obj[i].ParamNames.length + '"><input type="checkbox" name="_'+obj[i].Id+'" />' + obj[i].Name + '</td>';
for (var j = 0; j < obj[i].ParamNames.length; j++) {
if (j != 0) {
row_str += "<tr>";
}
row_str += '<td><input type="checkbox" name="p_'+obj[i].ParamNames[j].Id+'_'+obj[i].Id+'" />' + obj[i].ParamNames[j].Name + '</td><td>';
for (var k = 0; k < obj[i].ParamNames[j].ListItems.length; k++) {
row_str += obj[i].ParamNames[j].ListItems[k].Name+"|";
}
row_str = row_str.substring(0, row_str.length - 2);
row_str += "</td><td>";
if (obj[i].ParamNames[j].CanMultiSelecte) {
row_str += "多选";
} else {
row_str += "单选";
}
row_str += "</td></tr>";
}
}
}
$("#sub_table_header").after(row_str);
}