//add proposal private void buttonAddProposal_Click(object sender, EventArgs e) { var title = textBoxTitle.Text; var subject = textBoxSubject.Text; var abstrac = textBoxAbstract.Text; var fullpaper = textBoxFull.Text; var keywords = textBoxKeywords.Text; try { var ok = ctr.AddProposal(userId, confId, new ProposalDTO(0, title, subject, abstrac, fullpaper, keywords, 0)); if (ok != null) { MessageBox.Show("Proposal added successfully!"); this.Close(); } } catch (Exception ee) { MessageBox.Show(ee.Message); } }