string myvar;
            string strSql="select title,content from bulletin order by id desc";
        
            myvar=ConfigurationSettings.AppSettings["connstring"];
            SqlConnection objConnection=new SqlConnection(myvar);
            //SqlCommand myComm=new SqlCommand(strSql,objConnection);
            //myComm.Connection.Open();
            SqlDataAdapter objDataAdapter=new SqlDataAdapter(strSql,objConnection);
            DataSet objDataSet=new DataSet();
            objDataAdapter.Fill(objDataSet,"bulletin");
            DataView objDataView=new DataView(objDataSet.Tables["bulletin"]);
            DataGrid1.DataSource=objDataView;
            DataGrid1.DataBind();