.net中上一篇下一篇的实现

1：sql中新建存储过程(注意跟进自己的表修改表名和排序条件

  
    

   
     set
   
      ANSI_NULLS 
   
     ON
   
     

   
     set
   
      QUOTED_IDENTIFIER 
   
     ON
   
     

   
     go
   
     




   
     --
   
      =============================================
   
     
--
   
      Author: 小黑
   
     
--
   
      Create date: 2011-2-17
   
     
--
   
      Description: 根据ID获取上一页下一页的存储过程
   
     
--
   
      =============================================
   
     

   
     ALTER
   
      
   
     PROCEDURE
   
      
   
     [
   
     dbo
   
     ]
   
     .
   
     [
   
     proc_PrevorNextpro
   
     ]
   
     

   
     @proid
   
      
   
     int
   
     ,
   
     --
   
     表id
   
     

   
     @str
   
      
   
     nvarchar
   
     (
   
     20
   
     )
   
     --
   
     prev 则是上一件 next则是下一件
   
     

   
     AS
   
     

   
     BEGIN
   
     
 
   
     declare
   
      
   
     @rowid
   
      
   
     int
   
     
 
   
     select
   
      
   
     @rowid
   
     =
   
     rowid 
   
     from
   
     (
 
   
     select
   
      ROW_NUMBER() 
   
     over
   
      (
   
     order
   
      
   
     by
   
      createdate 
   
     desc
   
     ) 
   
     as
   
      rowid,
   
     *
   
      
   
     from
   
      shop_product
)
   
     as
   
      a 
   
     where
   
      a.id
   
     =
   
     @proid
   
     

   
     if
   
      
   
     @str
   
     =
   
     '
   
     prev
   
     '
   
     

   
     set
   
      
   
     @rowid
   
     =
   
     @rowid
   
     -
   
     1
   
     

   
     else
   
     

   
     set
   
      
   
     @rowid
   
     =
   
     @rowid
   
     +
   
     1
   
     


   
     select
   
      
   
     *
   
      
   
     from
   
     (
 
   
     select
   
      ROW_NUMBER() 
   
     over
   
      (
   
     order
   
      
   
     by
   
      createdate 
   
     desc
   
     ) 
   
     as
   
      rowid,
   
     *
   
      
   
     from
   
      shop_product
)
   
     as
   
      a 
   
     where
   
      a.rowid
   
     =
   
     @rowid
   
     

   
     END
  
    

2：DAL层表的DAO代码中新加

  
    

   
      
   
     ///
   
      
   
     <summary>
   
     
 
   
     ///
   
      根据商品ID获取上一件或者下一件商品
 
   
     ///
   
      
   
     </summary>
   
     
 
   
     ///
   
      
   
     <param name="proid">
   
     商品ID
   
     </param>
   
     
 
   
     ///
   
      
   
     <param name="str">
   
     上一件:prev,下一件:next
   
     </param>
   
     

   
     
 
   
     public
   
      xh.shop.Model.product GetPrevOrNextProModel(
   
     int
   
      proid, 
   
     string
   
      str)
 {

 
   
     string
   
      proc 
   
     =
   
      
   
     "
   
     proc_PrevorNextPro
   
     "
   
     ;
 Database db 
   
     =
   
      DatabaseFactory.CreateDatabase();
 DbCommand dbCommand 
   
     =
   
      db.GetStoredProcCommand(proc);
 db.AddInParameter(dbCommand, 
   
     "
   
     proid
   
     "
   
     , DbType.Int32, proid);
 db.AddInParameter(dbCommand, 
   
     "
   
     str
   
     "
   
     , DbType.String, str);
 xh.shop.Model.product model 
   
     =
   
      
   
     null
   
     ;
 
   
     using
   
      (IDataReader dataReader 
   
     =
   
      db.ExecuteReader(dbCommand))
 {
 
   
     if
   
      (dataReader.Read())
 {
 model 
   
     =
   
      ReaderBind(dataReader);
 }
 }
 
   
     return
   
      model;
 }
  
    

3：ui层中HTML代码

View Code

   
     

    
       
    
      <
    
      asp:HyperLink 
    
      ID
    
      ="hlprev"
    
       runat
    
      ="server"
    
      >
    
      
 
    
      <
    
      img 
    
      border
    
      ="0"
    
       height
    
      ="19"
    
       src
    
      ="images/ansh.gif"
    
       width
    
      ="47"
    
       
    
      />
    
      
 
    
      </
    
      asp:HyperLink
    
      >
    
      
 
    
      <
    
      asp:HyperLink 
    
      ID
    
      ="hlnext"
    
       runat
    
      ="server"
    
      >
    
      
 
    
      <
    
      img 
    
      border
    
      ="0"
    
       height
    
      ="19"
    
       src
    
      ="images/anx.gif"
    
       width
    
      ="47"
    
       
    
      />
    
      
 
    
      </
    
      asp:HyperLink
    
      >
    
       
   
     

图片名称自己修改

4:后台代码如下（model.id为自己目前商品的ID）

View Code

   
     

    
       
    
      //
    
      上一页
    
      

    
       Model.product m_prev 
    
      =
    
       
    
      new
    
       xh.shop.DAL.product().GetPrevOrNextProModel(model.id,
    
      "
    
      prev
    
      "
    
      );
 
    
      if
    
       (m_prev 
    
      !=
    
       
    
      null
    
      )
 {
 hlprev.NavigateUrl 
    
      =
    
       
    
      "
    
      pro.aspx?id=
    
      "
    
       
    
      +
    
       m_prev.id;
 }
 
    
      else
    
      
 {
 hlprev.Visible 
    
      =
    
       
    
      false
    
      ;
 }
 
    
      //
    
      下一页
    
      

    
       Model.product m_next 
    
      =
    
       
    
      new
    
       xh.shop.DAL.product().GetPrevOrNextProModel(model.id, 
    
      "
    
      next
    
      "
    
      );
 
    
      if
    
       (m_next 
    
      !=
    
       
    
      null
    
      )
 {
 hlnext.NavigateUrl 
    
      =
    
       
    
      "
    
      pro.aspx?id=
    
      "
    
       
    
      +
    
       m_next.id;
 }
 
    
      else
    
      
 {
 hlnext.Visible 
    
      =
    
       
    
      false
    
      ;
 }