//设置记录总数
public function set RecordCount(count:int):void
{
mRecordCount= count;
if(count >0)
{
SetState();
}
}
private function SetState():void
{
if(mRecordCount%mPageSize > 0)
{
mPageCount = mRecordCount/mPageSize+1;
}
else
{
mPageCount = mRecordCount/mPageSize;
}
var pages:Array = new Array();
for(var i:int =1;i<=mPageCount;i++)
{
pages.push( {label:i.toString(), data:i-1});
}
c_select.dataProvider= pages;
c_select.selectedIndex= mPageIndex;
if(mPageCount>1)
{
c_select.enabled=true;
c_l.enabled=true;
c_le.enabled=true;
c_r.enabled=true;
c_re.enabled=true;
if(mPageIndex==0)
{
c_l.enabled=false;
c_le.enabled=false;
}
if(mPageIndex == mPageCount-1)
{
c_r.enabled=false;
c_re.enabled=false;
}
}
else
{
c_select.enabled=false;
c_l.enabled=false;
c_le.enabled=false;
c_r.enabled=false;
c_re.enabled=false;
}
pageinfo.text="Records:" + mRecordCount+"/" + mPageCount+"pages";
}
//获取记录总数
public function get RecordCount():int
{
return mRecordCount;
}
//打开分页控件
public function Open():void{
mPageIndex =0;
OnPageChange();
}
//刷新当前页面
public function Refresh():void
{
OnPageChange();
}
private function OnPageChange():void
{
var e:PageChangeEvent = new PageChangeEvent(mPageIndex,
mPageSize);
dispatchEvent(e);
}
]]>
</mx:Script>
<mx:Label x="200" y="10" width="175" fontSize="12" id="pageinfo"/>
</mx:Canvas>
用例页面代码：
<?xml version="1.0" encoding="utf-8"?>
<mx:Application initialize="oninit()" xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" xmlns:ns1="Units.*" xmlns:ns2="*">
<mx:Script>
<![CDATA[
import mx.controls.Alert;
import flash.events.Event;
import Units.*;
private var datas:Array = new Array();
function oninit():void
{
for(var i:int=0;i<1110;i++)
{
datas.push({UserName:"Henry"+i,Notes:"GuangZhou" +i})
}
pagebar1.RecordCount =datas.length;
pagebar1.Open();
}
function pagechange(e:PageChangeEvent):void
{
datalist.dataProvider = e.Filter(datas)
}
]]>
</mx:Script>
<mx:DataGrid width="100%" id="datalist">
<mx:columns>
<mx:DataGridColumn headerText="UserName" dataField="UserName"/>
<mx:DataGridColumn headerText="Notes" dataField="Notes"/>
</mx:columns>
</mx:DataGrid>
<ns2:PageBar id="pagebar1" PageChange="pagechange(event)">
</ns2:PageBar>
</mx:Application>
