public void BeginEdit()
{
ViewMode = ViewMode.Editing;
Editable.Name = Details.Name;
Editable.Street = Details.Street;
Editable.HouseNumber = Details.HouseNumber;
Editable.City = Details.City;
Editable.ZipCode = Details.ZipCode;
Editable.Country = Details.Country;
//Editable.CreditCard = Details.CreditCard;
ErrorMessage = null;
}