C# GridView DataList存储过程分页（效率高）

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protected void bindlist()
    {
        SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["Netconntiong"].ConnectionString);
        SqlCommand command = new SqlCommand();
        //获取数据库连接字符串,生成新的数据库连接对象.
        SqlCommand myCommand = new SqlCommand("Tech_SearchListzgbfwTion", myConnection);
        //标记数据库访问对象的命令类型为存储过程.
        myCommand.CommandType = CommandType.StoredProcedure;
        int pageindex = 0;
        if (Request.QueryString["selectis"] == "1")
        {
            key = Server.HtmlDecode(Request.QueryString["keys"]);
        }
        else
        {
            key = "";
        }
        //string strWhere = "";
        if (AspNetPager1.CurrentPageIndex < 1)
        {
            pageindex = 1;
        }
        else
        {
            pageindex = AspNetPager1.CurrentPageIndex;
        }
        SqlParameter[] parameters ={
             new SqlParameter("@tblname",SqlDbType.VarChar,255),
             new SqlParameter("@strGetFields",SqlDbType.VarChar,1000),
             new SqlParameter("@fldName",SqlDbType.VarChar,255),
             new SqlParameter("@pagesize",SqlDbType.Int,4),
             new SqlParameter("@pageindex",SqlDbType.Int,4),
             new SqlParameter("@doCount",SqlDbType.Bit),
             new SqlParameter("@ordertype",SqlDbType.Bit),
             new SqlParameter("@strwhere",SqlDbType.VarChar,2000),
        new SqlParameter("@key",SqlDbType.VarChar,2000)};
        parameters[0].Value = "expertadd";//数据表
        parameters[1].Value = "id,title,Company,Content,tel,date";
        parameters[2].Value = "date";
        parameters[3].Value = AspNetPager1.PageSize;//多少条为一页
        parameters[4].Value = pageindex;//索引页
        parameters[5].Value = 0;//这里写死０就行了
        parameters[6].Value = 1;//这里的１是降序，０为升序
        parameters[7].Value = "and classid=1 and onhot=1";//查询条件组合
        parameters[8].Value = key;//查询条件组合

        foreach (SqlParameter p in parameters)
        {
            myCommand.Parameters.Add(p);
        }

        SqlDataAdapter sda = new SqlDataAdapter(myCommand);
        DataSet ds = new DataSet();
        sda.Fill(ds);
        //动态设置用户自定义文本内容
        AspNetPager1.RecordCount = int.Parse(ds.Tables[1].Rows[0][0].ToString());
        AspNetPager1.CustomInfoText = "共" + AspNetPager1.RecordCount.ToString() + "条,";
        AspNetPager1.CustomInfoText += "总页数" + AspNetPager1.PageCount.ToString() + "页,";
        AspNetPager1.CustomInfoText += "第" + AspNetPager1.CurrentPageIndex.ToString() + "页";
        if (Convert.ToInt32(AspNetPager1.RecordCount.ToString()) == 0)
        {
            Literal2.Visible = true;
            Panel1.Visible = false;
        }
        DataList1.DataSource = ds.Tables[0].DefaultView;
        DataList1.DataBind();

    }

 

 

 

存储过程

CREATE PROCEDURE Tech_ListBtechPageTion
@tblName nvarchar(1000),
@strGetFields nvarchar(1000) = "*", -- 需要返回的列
@fldName varchar(255)='', -- 排序的字段名
@PageSize int = 10, -- 页尺寸
@PageIndex int = 1, -- 页码
@doCount bit = 0, -- 返回, 非0 值则返回记录总数
@OrderType bit = 0, -- 设置排序类型, 非0 值则降序
@strWhere varchar(1500) = '', -- 查询条件(注意: 不要加where)
@key varchar(1000)
AS
declare @strSQL varchar(5000) -- 主语句
declare @strTmp varchar(110) -- 临时变量
declare @strOrder varchar(400) -- 排序类型
if @key!=''
begin
 set @key='   and SpName like ''%'+@key+'%'' '
end
if @doCount != 0
begin
   if @strWhere !=''
    set @strSQL = 'select count(*) as Total from [' + @tblName + '] where 1=1 '+ @strWhere +  @key
   else
    set @strSQL = 'select count(*) as Total from [' + @tblName + ']'
end --以上代码的意思是如果@doCount传递过来的不是，就执行总数统计。以下的所有代码都是@doCount为的情况：
else
begin
   if @OrderType != 0--降序
   begin
    set @strTmp = '<(select min'
    set @strOrder = ' order by [' + @fldName +'] desc'--如果@OrderType不是0，就执行降序，这句很重要！
   end
   else
   begin
    set @strTmp = '>(select max'
    set @strOrder = ' order by [' + @fldName +'] asc'
   end
   if @PageIndex = 1
   begin
    if @strWhere != ''
     set @strSQL = 'select top ' + str(@PageSize) +' ' + @strGetFields + ' from [' + @tblName + '] where 1=1

' + @strWhere + @key + ' ' + @strOrder
    else
     set @strSQL = 'select top ' + str(@PageSize) +' ' + @strGetFields + ' from [' + @tblName + '] ' +

@strOrder--如果是第一页就执行以上代码，这样会加快执行速度
   end
   else
   begin--以下代码赋予了@strSQL以真正执行的SQL代码
    set @strSQL = 'select top ' + str(@PageSize) + ' ' + @strGetFields + ' from ['   + @tblName + '] where ['

+ @fldName + ']' + @strTmp + '(['+ @fldName + ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' [' +

@fldName + '] from [' + @tblName + ']' + @strOrder + ') as tblTmp)' + @strOrder
    if @strWhere != ''
     set @strSQL = 'select top ' + str(@PageSize) +' '+@strGetFields+ ' from [' + @tblName + '] where [' +

@fldName + ']' + @strTmp + '([' + @fldName + ']) from (select top ' + str((@PageIndex-1)*@PageSize) + ' [' +

@fldName + '] from [' + @tblName + '] where 1=1 ' + @strWhere + @key + ' ' + @strOrder + ') as tblTmp) and

1=1 ' + @strWhere + @key + ' ' + @strOrder
   end
   if @strWhere !=''            --得到记录的总行数
    set @strSQL =@strSQL+ '; select count(*) as Total from [' + @tblName + '] where 1=1 '+ @strWhere + @key
   else
    set @strSQL =@strSQL+ '; select count(*) as Total from [' + @tblName + ']'
end
exec (@strSQL)
RETURN
GO
 

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