當combobox選擇了某一項之後，直接觸發動作返回資料集

//選擇專業重新整理採購包列表.datagrid({ loadFilter: pagerFilter })
$('#ddlDiscipline').combobox({
    onSelect: function (row) {
        if (row != null) {
            $.ajax({
                contentType: "application/x-www-form-urlencoded; charset=UTF-8",
                url: "../../Controller/Interface/POtoPriceLib.ashx?Action=Refresh"
 
,
                type: "get",
                data: {
                    "DisciplineName": encodeURIComponent(row.專業名稱),
                    "PurchaseNumber": encodeURIComponent($('#PurchaseNumber').textbox('getValue'))
                },
                dataType: "json",
                success: function
 
 (data) {
                    $("#dg").datagrid("options").pageNumber = 1;
                    $("#dg").datagrid("loadData", data);
                }
            });

        }
    }
});