This is my code: string SQL = "SELECT email FROM members WHERE subscribe=true"; string myConnString = Application["ConnectionString"].ToString();

        OleDbConnection myConnection = new OleDbConnection(myConnString);
        OleDbCommand myCommand = new OleDbCommand(SQL, myConnection);
        myConnection.Open();
        OleDbDataAdapter MyAdapter = new OleDbDataAdapter(myCommand);
        DataSet ds = new DataSet();
        MyAdapter.Fill(ds);

        MailsListBox.DataSource = ds;
        MailsListBox.DataBind();

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

        myConnection.Close();

And so it looks:

As you see, the GridView shows the dataset just fine, and the ListBox fails it. What happened? How can I fix it?

Thank you very much.