//Fyller i TB's med en användare man valt att uppdatera ur Listan
private void listBoxUsers_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
tbUserID.IsEnabled = true;
tbUsername.IsEnabled = true;
tbBoss.IsEnabled = true;
var logic = new LogicHandler();
var selected = listBoxUsers.SelectedValue.ToString();
var u = logic.getInfoOnSelectedUser();
var val = logic.checkIfDigits(selected);
foreach (var user in u.Where(user => val.Equals(user.UID)))
{
tbFirstName.Text = user.FirstName;
tbLastNamne.Text = user.LastName;
tbEmail.Text = user.Email;
tbPassword.Text = user.PW;
tbUsername.Text = user.Username;
tbSsn.Text = user.SSN;
tbBoss.Text = user.BID.ToString();
tbUserID.Text = user.UID.ToString();
}
}