easyui下拉框代码块

下拉框设置
function inCombobox(id, url, valuefield,textfield) {
$.ajaxSettings.async = false;
$.ajax({
type: "post",
url: url,
data: {},
dataType: "json",
success: function (data) {
//var obj = JSON.parse(data);
var value = "";
//加载下拉框复选框
$('#' + id).combobox({
data: data.data.DT,
method: 'post',
panelHeight: 200,//设置为固定高度，combobox出现竖直滚动条
valueField: valuefield,
textField: textfield,
});
},
error: function () {
alert("系统异常，请稍后重试！");
}
});
$.ajaxSettings.async = true;
}
$('#tano').combobox({
onChange: function (newValue, oldValue) {
SeachData_4043();
}
});