该功能还存在很多BUG,仅供参考
Ext.net.ResourceMgr.load([{ url: _HOST + "Js/OverwriteExtjs/LockingHeaderGroupView.js"}]);
//rows为Record.data的数组view = new Ext.ux.grid.LockingHeaderGroupView({ grows: [rows] }); colModel = new Ext.ux.grid.LockingHeaderColumnModel(columns);