关于EsayUI中datagrid重复提交后台查询数据的问题

<table id="XXXX"  style="width:100%;height:100%;" class="easyui-datagrid">

$("#XXXX").datagrid({
        rownumbers: true,
        nowrap: false,

        fitColumns: true,
        fit: true,
        cache: false,
        singleSelect: false,
        onBeforeSelect: function () {
            return false;
        },
        url: "../Handler/XXXX.ashx",
       
        queryParams: { },
        pagination: true,
        pageNumber: 1,
        pageSize: 20,
        pageList: [10, 20, 30, 50],
        toolbar: "#infostoolbar",
        columns: [[
            //{ field: "ID", checkbox: true },

        ]],
        onLoadSuccess: function (data) {

            $.parser.parse($(".datagrid-view"));
            $(‘#XXXX‘).datagrid(‘fixRowHeight‘);

        },
        checkOnSelect: false,
        selectOnCheck: true
    });