Ext.onReady(function(){
var store = Ext.create(‘Ext.data.Store‘,{
fields : [‘name‘, ‘seniority‘, ‘department‘],
groupField : ‘department‘,
data:{‘employees‘:[{"name":"Michael", "seniority":7, "department":"Sales"}]},
proxy : {
type:‘memory‘,
reader : {
type : ‘json‘,
root : ‘employees‘
}
}
});
var columns = [{text:‘Name‘, dataIndex:‘name‘,locked:true},
{text:‘Seniority‘, dataIndex:‘seniority‘}];
var grid = Ext.create(‘Ext.grid.Panel‘,{
title : ‘Employees‘,
enableLocking : true,
columns : [],
features:[{
ftype : ‘grouping‘
}],
width : 200,
resizable : true,
store : Ext.create(‘Ext.data.Store‘,{
fields : []
}),
height : 275
});
var tab = Ext.create(‘Ext.tab.Panel‘,{
width : 400,
height : 400,
renderTo : document.body,
items : []
});
var button = Ext.widget(‘button‘,{
renderTo : Ext.getBody(),
text : ‘rec‘,
handler : function(){
tab.add(grid);
grid.reconfigure(store, columns);
}
});
});
-----------------------------------------------------------------------------------
handler里面如果reconfigure放在add的前面就会出现el找不到的错误。
Extjs 4 tabpanel动态加载reconfigure的grid
原文：http://angelgirl.blog.51cto.com/1695763/1658376