通用的分頁類（不執行sql,直接綁定數據）

數據分頁一直以來是比較頭疼的問題，不少的分頁控件也隨之產生。但是我用過的幾個控件，本身都要執行SQL，對存儲過程支持不好，爲了方便，特別寫了個通用分頁類,利用PagedDataSource來實現DataGrid，DataList，Repeater的分頁。完成上一頁，下一頁，
最後一頁，最前一頁，總頁數，當前頁數，跳轉這些基本的功能。

 

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace aspnetpager
{
 ///
 ///  netpager-本類提供datagrid,datalist,repeater的通用分頁---jierry 04-7-19
 ///
 public class netpager: System.Web.UI.Page
 {
  private System.Web.UI.WebControls.DataGrid datagrid=null;
  private System.Web.UI.WebControls.DataList datalist=null;
        private System.Web.UI.WebControls.Repeater repeater=null;
  private System.Web.UI.WebControls.HyperLink lnknext;
  private System.Web.UI.WebControls.HyperLink lnkprev;
  private System.Web.UI.WebControls.HyperLink lnkfist;
  private System.Web.UI.WebControls.HyperLink lnklast;
  private System.Web.UI.WebControls.HyperLink lnkjump;
  private System.Web.UI.WebControls.Label pagenum;
        private System.Web.UI.WebControls.Label pagecount;
  private System.Web.UI.WebControls.DropDownList list;
  
  
  public netpager()
  {
   //
   // TODO: 在此處添加構造函數邏輯
   //
  }

  public System.Web.UI.WebControls.DataGrid Datagrid
  {
   get
   {
    return this.datagrid;
   }
   set
   {
    this.datagrid=value;
   }
  }

  public System.Web.UI.WebControls.DataList Datalist
  {
   get
   {
    return this.datalist;
   }
   set
   {
    this.datalist=value;
   }
  }

  public System.Web.UI.WebControls.Repeater Repeater
  {
   get
   {
    return this.repeater;
   }
   set
   {
    this.repeater=value;
   }
  }

  
  public System.Web.UI.WebControls.HyperLink Lnkprev
  {
   get
   {
    return this.lnkprev;
   }
   set
   {
    this.lnkprev=value;
   }
  }

  public System.Web.UI.WebControls.HyperLink Lnknext
  {
   get
   {
    return this.lnknext;
   }
   set
   {
    this.lnknext=value;
   }
  }

  public System.Web.UI.WebControls.HyperLink Lnkfist
  {
   get
   {
    return this.lnkfist;
   }
   set
   {
    this.lnkfist=value;
   }
  }

  public System.Web.UI.WebControls.HyperLink Lnklast
  {
   get
   {
    return this.lnklast;
   }
   set
   {
    this.lnklast=value;
   }
  }

  public System.Web.UI.WebControls.HyperLink Lnkjump
  {
   get
   {
    return this.lnkjump;
   }
   set
   {
    this.lnkjump=value;
   }
  }

  public System.Web.UI.WebControls.Label Pagenum
  {
   get
   {
    return this.pagenum;
   }
   set
   {
    this.pagenum=value;
   }
  }

  public System.Web.UI.WebControls.Label Pagecount
  {
   get
   {
    return this.pagecount;
   }
   set
   {
    this.pagecount=value;
   }
  }

  public System.Web.UI.WebControls.DropDownList List
  {
   get
   {
    return this.list;
   }
   set
   {
    this.list=value;
   }
  }

  public void datapage(DataSet ds,int pagenum)
  {
   PagedDataSource objPds = new PagedDataSource();
   objPds.AllowPaging =true;
   //每頁顯示數目
   objPds.PageSize =pagenum;
   //指定數據源
   objPds.DataSource = ds.Tables[0].DefaultView;
   int CurPage;
   //綁定dropdownlist數據
   for(int i=1;i<=objPds.PageCount;i++)
   {
    this.list.Items.Add(i.ToString());
   }
   this.list.Items.Insert(0,new ListItem("頁數",""));
   //確定當前頁數
   if (System.Web.HttpContext.Current.Request.Params["Page"] != null)
   {
    CurPage=Convert.ToInt32(System.Web.HttpContext.Current.Request.Params["Page"]);
    
   }
   else
   {
    CurPage=1;
   }

   objPds.CurrentPageIndex = CurPage-1;
   //顯示當前頁數
   this.pagenum.Text="頁數:"+CurPage.ToString();
   //顯示總共頁數
   this.pagecount.Text="共有"+objPds.PageCount+"頁";

      //下一頁
   if (!objPds.IsLastPage)
   {
    lnknext.NavigateUrl=System.Web.HttpContext.Current.Request.CurrentExecutionFilePath+"?Page=" + Convert.ToString(CurPage+1);
   }
   //上一頁
   if(!objPds.IsFirstPage)
   {
    lnkprev.NavigateUrl=System.Web.HttpContext.Current.Request.CurrentExecutionFilePath+"?Page="+Convert.ToString(CurPage-1);
   }
   //第一頁
   if(CurPage!=1)
   {
    lnkfist.NavigateUrl=System.Web.HttpContext.Current.Request.CurrentExecutionFilePath+"?Page="+Convert.ToString(1);
   }
   //最後一頁
   if(CurPage!=objPds.PageCount)
   {
    lnklast.NavigateUrl=System.Web.HttpContext.Current.Request.CurrentExecutionFilePath+"?Page="+Convert.ToString(objPds.PageCount);
   }
   //綁定datagrid
   if(this.datagrid!=null)
   {
    datagrid.DataSource=objPds;
    datagrid.DataBind();
   }
   //綁定datalist
   if(this.datalist!=null)
   {
    datalist.DataSource=objPds;
    datalist.DataBind();
   }
   //綁定repeater
   if(this.repeater!=null)
   {
    repeater.DataSource=objPds;
    repeater.DataBind();
   }
   
  }

        //dropdownlist選擇改變
  public void select()
  {
   this.lnkjump.NavigateUrl=System.Web.HttpContext.Current.Request.CurrentExecutionFilePath+"?Page="+Convert.ToString(this.list.SelectedItem.Value);
  }
   

 

 }
}

 

使用方法:
1.在引用裏添加aspnetpager.dll的引用
2.using aspnetpager;
3.private netpager pager;
4.
page_load()
if(!IsPostBack)
   {
    pager=new netpager();
    pager.Datagrid=this.DataGrid1;
    pager.Datalist=this.DataList1;
    pager.Repeater=this.Repeater1;
    pager.Lnknext=this.HyperLink1;
    pager.Lnkprev=this.lnkprev;
    pager.Lnklast=this.lnklast;
    pager.Lnkfist=this.lnkfist;
    pager.Pagenum=this.Label1;
    pager.Pagecount=this.Label2;
    pager.List=this.DropDownList1;
   
    DataSet ds=new DataSet();
    ds.ReadXml(Server.MapPath("test.xml"));
    pager.datapage(ds,5);
   }
   
5.private void DropDownList1_SelectedIndexChanged(object sender, System.EventArgs e)
  {
      pager=new netpager();
   pager.List=this.DropDownList1;
   pager.Lnkjump=this.HyperLink3;
   pager.select();
           
  }