Extjs:添加查看全部按钮

    var grid =new Ext.grid.GridPanel({
renderTo:'tsllb',
title:'产品成本列表',
selModel:csm,
height:350,
columns:[
csm,
{header: "编码", dataIndex: "bm", sortable: true,hidden:true},
{header: "产品", dataIndex: "cp", sortable: true},
{header: "成本", dataIndex: "cb", sortable: true,align:'left'}
],
store:store,
tbar:new Ext.PagingToolbar({
id:'bbar',
emptyMsg:"没有数据",
displayInfo:true,
displayMsg:"显示从{0}条数据到{1}条数据,共{2}条数据",
store:store,
pageSize:50
}),
bbar:[{
pressed: true,
enableToggle:true,
text: '查看全部',
toggleHandler: function(btn, pressed){
search(10000);
}
}]
});
    var search = function(pageSize){
store.load({
params:{start:0,limit:pageSize,param:param}});
Ext.getCmp("bbar").pageSize=pageSize;
}
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