//проверяет существование пользователя на сервере
static public bool Exist()
{
try
{
AccountClient server = new AccountClient();
return server.Exist(GetUserEmail(), GetUserPass());
}
catch (SqlException ex)
{
throw new Exception(ex.ToString());
}
}
public override bool ValidateUser(string email, string password)
{
AccountClient accountClient = new AccountClient();
return accountClient.Exist(email, password);
}