jqGrid可以在构建的时候通过height参数来设置表格初始高度，也可以在后续通过调用setGridHeight函数来动态设置表格高度。本文利用jqGrid的setGridHeight函数和window的resize事件实现jqGrid高度自适应，随窗口尺寸变动自动调整表格高度，DEMO如下。
<!DOCTYPE html><html><head><meta charset="UTF-8" /><title>jggrid 高度自适应</title><link rel="stylesheet" href="/twitter-bootstrap/3.3.7/css/bootstrap.min.css" /><link rel="stylesheet" href="/font-awesome/4.5.0/css/font-awesome.min.css" /><link rel="stylesheet" href="/jqgrid/4.6.0/css/ui.jqgrid.css" /><script src="/jquery/1.11.1/jquery.min.js"></script><script src="/jqgrid/4.6.0/js/jquery.jqGrid.min.js"></script><style>tr.ui-state-highlight td, tr.selected-row td{background: #dff0d8;}</style></head><body><div class="page-content container"><div class="page-body"> <!-- page-body --><div class="panel panel-default" id="panel-orders"><div class="panel-heading"><h3 class="panel-title">jqGrid高度自适应，随窗口尺寸变动自动调整高度</h3></div><table id="orders" class="table-bordered ly-jqgrid"></table></div></div></div><script type="text/javascript">var data = [], rowIds = [];function getBills() {var rowCount = 50;for (var i = 0; i < rowCount; i ++) {data.push({sid: i,bill_id: i,bill_detail: i,goods_id: i,unit_id: i,package_id: i,ref_detail: i,goods_no: i + 1,goods_name: '零件名称' + rowCount + i,car_type_name: '车型' + rowCount + i,package_name: '包装器具' + rowCount + i,unit: i%2==0 ? '件' : '箱',snp: 0.89,box_count: rowCount + i,total_count: rowCount + i,goods_count: rowCount + i,out_count: rowCount + i,bill_no: 'BN0000000' + i,})}$("#orders").jqGrid("clearGridData").jqGrid('setGridParam',{data: data || []}).trigger('reloadGrid');}function page_resize() {var _height = $(window).height();$(".page-feature .page-content").outerHeight(_height);$(".ly-jqgrid").each(function(i, e){var $this = $(e), jobj = $this, jobj_parents = jobj.parents(".ui-jqgrid"), _h = 0;_h = _height - jobj.offset().top - 10;// grid有效高度 = 总高度 - 表格高度起始位置 - 底部边距10_h = _h - (jobj_parents.find(".ui-jqgrid-pager").outerHeight() || 0) - (jobj_parents.find(".ui-jqgrid-ftable").outerHeight() || 0);if(_h > 0) {$this.jqGrid('setGridHeight', _h);}});}$(function() {$("#orders").jqGrid({colModel: [{label: "零件号", name: "goods_no", width: 60},{label: "零件名称", name: "goods_name", width: 180},{label: "车型", name: "car_type_name", width: 70},{label: "包装器具", name: "package_name", width: 70},{label: "单位", name: "unit", width: 60 },{label: "装箱率", name: "snp", width: 50, sorttype: "number"},{label: "箱数", name: "box_count", width: 40, sorttype: "number"},{label: "需求总数", name: "total_count", width: 70, sorttype: "number"},{label: "需求数量", name: "goods_count", width: 70,},{label: "出库数量", name: "out_count", width: 70, sorttype: "number"},{label: "订单号", name: "bill_no", width: 120},],datatype: 'local',rownumbers: true,height: 300,multiselect: true,});getBills();$(window).on("load",function(){page_resize();$(window).resize(function(){setTimeout("page_resize()", 10);});});});</script></body></html>
DEMO说明：
1）表格构建时指定了初始高度300；
2）响应window resize事件，利用jqGrid自带setGridHeight函数重置表格高度；
3）关于高度计算，DEMO所示只是其中一种case，仅供参考。
