dataGridview 采用数据存储实现分页

 

 

一般的数据分页只能展示数据，当数据修改后，分页将不起作用；我现在采用数据存储来实现分页，缩短程序加载数据的时间，数据修改后，刷新，任然能实现数据分页

==================存储过程====================================

 

--查询预约所以数据并分页处理
CREATE PROCEDURE Pagination 
 
@PageSize   int = 10,          -- 页尺寸 
 
@PageIndex  int = 1          -- 页码 
 
AS 

declare @strSQL   varchar(5000)       -- 主语句 

set @strSQL ='select top ' +str(@PageSize) +' * from sickinfo  where id>(select isnull(max(id),0) from(select top '+ str((@PageIndex-1)*@PageSize) +' id from sickinfo  order by id  )as T)order by id '

if(@PageIndex =1)
begin
set @strSQL='select top '+str(@PageSize)+' * from sickinfo   order by id desc '
end
else
begin
 set @strSQL ='select top ' +str(@PageSize) +' * from sickinfo  where id<(select isnull (min(id),0) from(select top '+str((@PageIndex-1)*@PageSize) +' id from sickinfo  order by id desc )as T)order by id desc '
end
 
exec ( @strSQL)
GO
 

==========================================================

类文件

    //利用存储过程来查询出所有的记录并进行分页处理
       public DataSet ExecuteDataSetProc(string strSQL,int pagesize ,int pageindex)
       {
           CheckConnection();

           DataSet ds1 = new DataSet();

           try
           {
               cmd = new SqlCommand(strSQL, con);
               cmd.CommandType = CommandType.StoredProcedure;
               SqlParameter[] para ={ new SqlParameter("@PageSize", SqlDbType.Int),
                                      new SqlParameter("@PageIndex", SqlDbType.Int) };

               para[0].Value = pagesize;
               para[1].Value = pageindex;
               cmd.Parameters.AddRange(para);
               SqlDataAdapter dap = new SqlDataAdapter();

               dap.SelectCommand = cmd;
               dap.Fill(ds1, "sickinfo");

           }
           catch (Exception e)
           {
               e.Message.ToString();
           }

           finally
           {
               con.Close();
           }
           return ds1;

       }

 

窗体上调用

 public void BindData()
        {
                   this.dataGridView1.DataSource = db.ExecuteDataSetProc("Pagination",PageSize, NowPage).Tables["sickinfo"];
        }