private void btnSearch_Click(object sender, EventArgs e) { var repo = new ClientRepository(); var repoVisit = new VisitRepository(); var client = repo.GetClientByDocument(txtIDSearch.Text.Trim(), int.Parse(cbDocTypeSearch.SelectedValue.ToString())); var visits = repoVisit.GetVisitByID(client.ClientID); var obs = string.Empty; foreach (Visit r in visits) { obs = obs + " - " + r.Observations; } txtSearchObservations.Text = obs; }