private void UsersGrid_CellEditEnded(object sender, Microsoft.Toolkit.Uwp.UI.Controls.DataGridCellEditEndedEventArgs e) { if (users[UsersGrid.SelectedIndex].Role != "Student") { users[UsersGrid.SelectedIndex].Group = ""; } DataAccessClass.ChangeUserData(users[UsersGrid.SelectedIndex].Id, users[UsersGrid.SelectedIndex].Login, users[UsersGrid.SelectedIndex].Password, users[UsersGrid.SelectedIndex].Role, users[UsersGrid.SelectedIndex].Group); }