private void AddUser(object o)
{
// add the order to the matching share
DataBaseHelper.AddUserToDB(new User(this.FirstName, this.LastName));
foreach (var user in DataBaseHelper.GetUsersFromDB())
{
if (!this.Users.Any((u) => { return(u.Equals(user)); }))
{
this.Users.Add(user);
}
}
}
