void Idal.AddHost(Host host)
{
if (!isValidEmail(host.MailAddress))
{
throw new InvalidDataException("Dal: can't add the host because the email address is invalid");
}
DataSource.hosts.Add(host.Copy <Host>());
}
public Host getHost(long key)//return host by Guest Request Key.
{
Host host = getListHosts().FirstOrDefault(h => h.HostKey == key);
if (host == null)
{
throw new Exception("מספר תעודת זהות לא נכון");
}
else
{
return(host.Copy());
}
}
public void addHost(Host host)
{
Host tempHost = getListHosts().FirstOrDefault(host1 => host1.HostKey == host.HostKey);
if (tempHost != null)
{
throw new Exception("יש כבר מארח עם אותו תעודת זהות");
}
else
{
DS.DataSource.HostList.Add(host.Copy());
}
}
void Idal.UpdateHost(Host host)
{
var result = from item in DataSource.hosts
where item.HostKey.CompareTo(host.HostKey) == 0
select item;
if (result.Count() == 0)
{
throw new KeyNotFoundException("Dal: Can't update the host because it doesn't exist");
}
DataSource.hosts.Remove(result.Single());
DataSource.hosts.Add(host.Copy <Host>());
}
