关于EXT中PagingMemoryProxy求助

ma130889 2012-07-05 01:16:35

首先贴个源代码：
var columns = [
{ header: "学科类别", dataIndex: "lb", sortable: true },
{ header: "课程编号", dataIndex: "kcbh", sortable: true },
{ header: "课程名称", dataIndex: "kcmc", sortable: true },
{ header: "学时", dataIndex: "xs", sortable: true },
{ header: "学分", dataIndex: "xf", sortable: true },
{ header: "开课学期", dataIndex: "kkxq", sortable: true,renderer:function(v){return "<font color='red'>"+v+"</font>"} }
];
var reader = new Ext.data.JsonReader({}, [
{ name: 'lb' },
{ name: 'kcbh' },
{ name: 'kcmc' },
{ name: 'xs' },
{ name: 'xf' },
{ name: 'kkxq' },
{ name: 'kkxy' },
{ name: 'khfs' },
{ name: 'bz' }
]);
var vstore=new Ext.data.JsonStore({
data:data1 ,
fields: ["zydm", "zymc", "kclb", "xkzdfs"]
});

var store = new Ext.data.GroupingStore({
reader: reader,
proxy: new Ext.data.PagingMemoryProxy(data),
groupField: 'lb',
sortInfo: { field: 'kcbh', direction: "ASC" }
});
var grid1=new Ext.grid.GridPanel({
title:"研究生专业培养方案 ",
store: vstore,
loadmask:true,
clicksToEdit: 1,
width: 600,
renderTo: document.body,
columns: [
{header: "专业代码", dataIndex: "zydm", sortable: true,width:150 },
{ header: "专业名称", dataIndex: "zymc", sortable: true, width:150},
{ header: "课程类别", dataIndex: "kclb", sortable: true, width:150},
{ header: "选课最低分数", dataIndex: "xkzdfs",
sortable: true,
renderer: function (v) { return "<font color='red'>" + v + "</font>" },width:145
}
]});

var grid = new Ext.grid.GridPanel({
autoHeight: true,
store: store,
layout: 'fit',
autoHeight: true,
loadmask: true,
bbar:new Ext.PagingToolbar({
pagesize:5,
store:store,
displayInfo:true,
displayMsg:'显示第{0}条到{1}条记录,一共{2}条',
empty:"没有记录"
}),
columns: columns,
view: new Ext.grid.GroupingView(),
renderTo: document.body
});
store.load({ params: { start: 0, limit: 5} });
});

在store中使用了PagingMemoryProxy进行静态分页，但是页面表格的显示没有进行分页，但是只显示了我所设定的PAGESIZE:5页的数据，是不是PagingMemoryProxy不支持JSON的数据分页，去解决

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