columns:[[{field:‘itemid‘,title:‘Item ID‘,rowspan:2,width:80,sortable:true},{field:‘productid‘,title:‘Product ID‘,rowspan:2,width:80,sortable:true},{title:‘Item Details‘,colspan:4}],[{field:‘listprice‘,title:‘List Price‘,width:80,align:‘right‘,sortable:true},{field:‘unitcost‘,title:‘Unit Cost‘,width:80,align:‘right‘,sortable:true},{field:‘attr1‘,title:‘Attribute‘,width:100},{field:‘status‘,title:‘Status‘,width:60}]]
原文：http://www.cnblogs.com/iwsx/p/7162021.html