GridView绑定数据源 绑定DataReader

 <asp:GridView ID="GridView1" runat="server"></asp:GridView>

            SqlConnection sqlCon = new SqlConnection();
            sqlCon.ConnectionString = "Data Source=.;DataBase=Bu;UID=sa;PWD=密码;";   //连接字符串
            SqlCommand cmd = new SqlCommand("select  * from tableA",sqlCon);    //sql语句或存储过程
            sqlCon.Open();
            SqlDataReader dr = cmd.ExecuteReader();

GridView1.DataSource = dr;
GridView1.DataBind();