private void cbxProfesionales_SelectedIndexChanged(object sender, EventArgs e) { if (cbxProfesionales.SelectedIndex != -1) { int id = ((KeyValuePair <int, String>)cbxProfesionales.SelectedItem).Key; try { dgvDiasAtencion.DataSource = tn.getAtencionProfesional(id); dgvDiasAtencion.Refresh(); dgvDiasAtencion.Columns["Key"].HeaderText = "Dias"; dgvDiasAtencion.Columns["Value"].HeaderText = "Turnos"; } catch (Exception ex) { MessageBox.Show("Error: " + ex.ToString()); } } }