ldj/view/ShowNewsCate.aspx.cs

using System;
using System.Data;
using System.Web.UI;
using System.Web.UI.WebControls;
using DeiNiu.Utils;
using DeiNiu.wms.Logical;

public partial class ShowNewsCate : Page
{
    private string cateId;
    private string upId;
    protected void Page_Load(object sender, EventArgs e)
    {

        cateId = Request.QueryString["cateId"];
        upId = Request.QueryString["upId"];
        if (!IsPostBack)
             bindData();
    }

    private void InitializeComponent()
    {

    }


   void bindData()
   {
       LPublicNews logic = new LPublicNews();
       DataView dv = logic.QueryTopCatagory().DefaultView;
       dv.RowFilter = "ID='" + upId+"'";
       RepeaterTop.DataSource = dv;
       RepeaterTop.DataBind();

       RepeaterMarquee.DataSource = logic.QueryMarqueen().DefaultView;
       RepeaterMarquee.DataBind();
        
   }

    protected void RepeaterTop_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            Repeater rpColumnNews = (Repeater)e.Item.FindControl("RepeaterSecond");
            //找到分类Repeater关联的数据项
            DataRowView rowv = (DataRowView)e.Item.DataItem;
            //提取分类ID
            string authID = Convert.ToString(rowv["ID"]);
            //里面的Repeater
             LPublicNews logic = new LPublicNews();
            DataView dv = logic.QueryPublicInfomation().DefaultView;
           // dv.RowFilter = "auth_uplevel='" + authID + "' and auth_marqueen=0 ";
            dv.RowFilter = "ID='" + cateId + "'";
            rpColumnNews.DataSource = dv;
            rpColumnNews.DataBind();

            
        }
    }

    protected void RepeaterSecond_ItemDataBound(object sender, System.Web.UI.WebControls.RepeaterItemEventArgs e)
    {
        if (e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
        {
            Repeater rpColumnNews = (Repeater)e.Item.FindControl("RepeaterThird");
            //找到分类Repeater关联的数据项
            DataRowView rowv = (DataRowView)e.Item.DataItem;
            //提取分类ID
            string authID = Convert.ToString(rowv["ID"]);
            //里面的Repeater
            LPublicNews logic = new LPublicNews();
            DataView dv = logic.QueryNews(Convert.ToInt32(authID)).DefaultView;
            dv =  GetTopDataViewRows(dv,10);
            rpColumnNews.DataSource = dv;
            rpColumnNews.DataBind();


        }
    }

    public string FormatShowContent(string titlecontent, int titlelength)
    {
        if (titlecontent.Length > titlelength)
        {
            return titlecontent.Substring(0, titlelength);
        }
        else
        {
            for (int i = 0; i < titlelength - titlecontent.Length;i++ )
                titlecontent += "&nbsp;";

            return titlecontent;
            
        }
        
    }

   private  DataView GetTopDataViewRows(DataView dv, int n)
    {
        DataTable dt = dv.Table.Clone();

        for (int i = 0; i < n - 1; i++)
        {
            if (i >= dv.Count)
            {
                break;
            }
            dt.ImportRow(dv[i].Row);
        }
        return new DataView(dt, dv.RowFilter, dv.Sort, dv.RowStateFilter);
    }
   
   
}