Extjs更替grid

Extjs更换grid

很基础的东西，在运行的时候更换grid的内容(grid结构，store的记录等)

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//延时5秒(function(){alert("pop out defer 5 seconds");changeGrid(grid);}).defer(5000);var changeGrid = function(grid){var index = new Ext.grid.RowNumberer();      var newColumnModel = new Ext.grid.ColumnModel([index, {                  header : "test once",                  width : 230,                  dataIndex : "test1",                  sortable : true              }, {                  header : "lalal twice",                  width : 230,                  dataIndex : "test2",                  sortable : true              }]);var newStore = new Ext.data.ArrayStore({        fields: [           {name: 'test1'},           {name: 'test2'}        ]    });   // manually load local datanewStore.loadData([['魏超','哈哈哈'],['啊','这是测试啊'],['fasf ','唉，无聊的测试']]);        //重新加载store和columnModelgrid.reconfigure(newStore,newColumnModel);//grid.getTopToolbar().bind(newStore); }