[测试]Gridview绑定SqlDataReader+IList和SqlDataAdapter+DataSet的效率

1，SqlDataAdapter+DataSet

     protected   void  Page_Load( object  sender, EventArgs e)
    {
        Stopwatch sp  =   new  Stopwatch();

        sp.Start();
         for  ( int  i  =   0 ; i  <   10000 ; i ++ )
        {
            Band_DataSet();
        }
        sp.Stop();
        Response.Write(sp.ElapsedMilliseconds.ToString()  +   " <br> " );
    }

     private   void  Band_DataSet()
    {

        SqlConnection conn  =   new  SqlConnection();
        conn.ConnectionString  =   "" ;
        conn.Open();
        SqlCommand cmd  =   new  SqlCommand();
        cmd.CommandText  =   " select * FROM province " ;
        cmd.CommandType  =  CommandType.Text;
        cmd.Connection  =  conn;

        SqlDataAdapter da  =   new  SqlDataAdapter();
        da.SelectCommand  =  cmd;
        DataSet ds  =   new  DataSet();
        da.Fill(ds);
        conn.Close();

        GridView1.DataSource  =  ds.Tables[ 0 ].DefaultView;
        GridView1.DataBind();
    }

 

结果，测试了4组：
Band_DataSet():单位MS
10712
10595
11018
10500
去掉第一组，平均为：10704

2，SqlDataReader+IList<T>

     protected   void  Page_Load( object  sender, EventArgs e)
    {
        Stopwatch sp  =   new  Stopwatch();

        sp.Start();
         for  ( int  i  =   0 ; i  <   10000 ; i ++ )
        {
            Band_DataReader();
        }
        sp.Stop();
        Response.Write(sp.ElapsedMilliseconds.ToString()  +   " <br> " );
    }

     private   void  Band_DataReader()
    {
        IList < Province >  province  =   new  List < Province > ();

        SqlConnection conn  =   new  SqlConnection();
        conn.ConnectionString  =   " server=.;database=mytest;uid=myid;pwd=myid; " ;
        conn.Open();
        SqlCommand cmd  =   new  SqlCommand();
        cmd.CommandText  =   " select * FROM province " ;
        cmd.CommandType  =  CommandType.Text;
        cmd.Connection  =  conn;

        SqlDataReader dr  =  cmd.ExecuteReader(CommandBehavior.CloseConnection);

         while  (dr.Read())
        {
            Province p  =   new  Province(dr[ 1 ].ToString(), dr[ 2 ].ToString());
            province.Add(p);
        }
        dr.Close();
        conn.Close();

        GridView1.DataSource  =  province;
        GridView1.DataBind();
    }

 

Model类：

public   class  Province
{
     public  Province()
    {
         //
         //  TODO: 在此处添加构造函数逻辑
         //
    }

     public  Province( string  _provinceID,  string  _provinceName)
    {
        provinceID  =  _provinceID;
        provinceName  =  _provinceName;
    }

     private   string  provinceID;
     private   string  provinceName;

     public   string  ProvinceID
    {
         get  {  return   this .provinceID; }
         set  {  this .provinceID  =  value; }
    }

     public   string  ProvinceName
    {
         get  {  return   this .provinceName; }
         set  {  this .provinceName  =  value; }
    }
}

同样测试4组：
Band_DataReader()：单位：ms
7238
7222
7231
7141
去掉第一组，平均：7198

可见，datareader的效率高，后者只有前者的67%的时间。

ps:个人单纯的测试，可能有考虑不周的地方。