datalist 控件绑定数据不显示，数据库里面不为空

Question

这个是DataOperate类public class DataOperate
{
    SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["conStr"]);
    public DataOperate()
    {
    }
    public bool DataCom(string sqlstr)
    {
        con.Open();
        SqlCommand sqlcomm = new SqlCommand(sqlstr, con);
        try
        {
            sqlcomm.ExecuteNonQuery();
            return true;
        }
        catch
        {
            return false;
        }
        finally
        {
            con.Close();
        }
    }
    public bool gvBind(GridView gv, string sqlstr)
    {
        con.Open();
        SqlDataAdapter sqldataadapter = new SqlDataAdapter(sqlstr, con);
        DataSet mydataset = new DataSet();
        sqldataadapter.Fill(mydataset);
        gv.DataSource = mydataset;
        try
        {
            gv.DataBind();
            return true;
        }
        catch
        {
            return false;
        }
        finally
        {
            con.Close();
        }
    }
    public bool dataBind(DataList dl, string sqlstr)
    {
        con.Open();
        SqlDataAdapter myadapter = new SqlDataAdapter(sqlstr, con);
        DataSet mydataset = new DataSet();
        myadapter.Fill(mydataset);
        dl.DataSource = mydataset;
        try
        {
            dl.DataBind();
            return true;
        }
        catch
        {
            return false;
        }
        finally
        {
            con.Close();
        }
    }
}

Answer 1

  this.dl.DataSource = ps; 换成  this.dl.DataSource = ds.Tables["title"].DefaultView;试试