public override bool IsValid()
{
if (string.IsNullOrEmpty(Number))
{
throw new DocumentInvalidNumberException();
}
var now = DateTime.Now;
if (Issue.CompareTo(now) > 0)
{
throw new DocumentIssueDateException();
}
if (Expire.CompareTo(now) < 0)
{
throw new DocumentExpiredException();
}
return(true);
}
public int CompareTo(object iOther)
{
if (iOther is RoyalGazette)
{
Int32 retval = 0;
RoyalGazette value2 = (RoyalGazette)iOther;
retval = Volume.CompareTo(value2.Volume);
if (retval == 0)
{
retval = Issue.CompareTo(value2.Issue);
if (retval == 0)
{
retval = PageInfo.CompareTo(value2.PageInfo);
}
}
return(retval);
}
throw new InvalidCastException("Not a RoyalGazette");
}