function initGrid() {        localGrid = jQuery("#tbList");        localGrid.jqGrid({            data: localData,            datatype: "local",            gridview: true,            height: 300,            width: '90%',            rowList: [5,10],            colNames: innerColumns,            autowidth: true,            hoverrows: false,            multiselect: false,            colModel: [             { name: 'Id', index: 'Id', width: 100, hidden: true },             { name: 'Status', index: 'Status', width: 100 },            { name: 'GroupName', index: 'GroupName', width: 200 },            { name: 'LetterNumber', index: 'LetterNumber', width: 80, align: "center" },            { name: 'ApplyUnitName', index: 'ApplyUnitName', width: 80, align: "center" },            { name: 'StayDays', index: 'StayDays', width: 80, align: "center" },            { name: 'LeaderName', index: 'LeaderName', width: 80, align: "center" }                        ],            emptyrecords: "没有任何数据",            pager: "#pager",            viewrecords: true,            rownumbers: true,            loadonce: true,            grouping: true,            rowNum:5,            groupingView : {                  groupField: ['Status']            },            ondblClickRow: function (id) {                //editInfo(id);            },            caption: "团组信息"                    }).navGrid('#pager', { edit: false, add: false, del: false, searchtext: "搜索" }, {}, {}, {}, { search: true, sopt: ['cn', 'eq', 'ge', 'gt', 'le', 'lt'] });    }

  加载时只显示5条数据， 就是通过 rowNum:5 这一属性实现的，当然此时你最好也将 rowList 的最少值设为 5   我这里是rowList :[5,10]