private void RemoveUser_OnClick(object sender, RoutedEventArgs e)
{
if (UsersListView.SelectedItem is UserDataGetter userData)
{
try
{
workShiftList.RemoveEmployeeWholeRange(usersList.GetUser(userData.Username));
usersList.RemoveUser(userData.Username);
ShowUsers();
ShowWorkShift();
}
catch (UserDoesNotExistException exception)
{
MessageBox.Show(exception.Message, "Error",
MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}