>Hi all,
>
>I need to verify a DataRow has valid values and thus I am checking my PK which is a Guid.
>
>I am doing this:
>

>if ((Guid)dr["Track_Id"] != null || (Guid)dr["Track_Id"] != Guid.Empty)
>{
>
>}
>

>
>I am getting a message "Unreachable expression code detected" on the last portion of the check.

Second expression would only be evaluated if (Guid)dr["Track_Id"] evaluated to null . I guess you intended &&......