DataSet客户端分页实现

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window.$ClientPageHelper=function(fromDs,toDs){
    var pageSize=toDs.get('pageSize');
    var elist=fromDs.getData();
    var entityCount=elist.entityCount;
    var pageCount=parseInt((entityCount-1)/pageSize)+1;
        var pageList=new dorado.EntityList();
    var datas=elist.toArray();
    for(var pi=0;pi<pageCount;pi++){
    var page=new dorado.EntityList.Page(pageList, pi+1);
        var start=pi*pageSize;
    var max=(pi+1)*pageSize;
    for(var no=start;no<max;no++){
         var e=datas[no];
         if(e){
        page.insert(e);
          }
    }
    pageList._pages.insert(page);
    }
        pageList.pageSize=pageSize;
        pageList.entityCount=entityCount;
        pageList.pageCount=pageCount;
        toDs.setData(pageList);
}

　　

posted @   ACaptain  阅读(516)  评论(0)  编辑  收藏  举报
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