public void Button2_Click(object sender, EventArgs e) { AdminDataManager ADMgr = new AdminDataManager(); string name = "?"; int total_days = 0; bool doit = true; try { name = this.TextBox4.Text.ToString(); total_days = Int32.Parse(this.TextBox5.Text); if (name == "" || total_days < 1) { doit = false; } } catch (Exception) { doit = false; } if (doit) { ADMgr.createItinerary(name, total_days); DataTable dt = ADMgr.getItinerary(); GridView2.DataSource = dt; GridView2.DataBind(); } else { this.TextBox15.Text = "Error Encountered. Please try again."; } }