Inheritance: System.Windows.Forms.Form
        private void session_chooser_Click(object sender, EventArgs e)
        {
            if (this.box.SelectedItem != null)
            {
                Session session = (Session)this.box.SelectedItem;

                //open new form
                HistoryView view = new HistoryView(session.data);
                view.ShowDialog(this);
            }
        }
        private void session_chooser_Click(object sender, EventArgs e)
        {
            if (this.box.SelectedItem != null)
            {
                Session session = (Session)this.box.SelectedItem;

                //open new form
                HistoryView view = new HistoryView(session.data);
                view.ShowDialog(this);
            }
        }