Sandeep wrote: > This is better > > if Assigned (Datasource.DataSet.Connection) > then Result := Datasource.DataSet.Connection;
I don't believe Assigned chases down all possible nils derefs, just the last one. If it does, it's news to me and not documented anywhere I can see. It would indeed by a nice idiom, if it were true. You'd need to check the assembler produced to see if all the nil tests are done for you. TTFN, Paul. --------------------------------------------------------------------------- New Zealand Delphi Users group - Delphi List - [EMAIL PROTECTED] Website: http://www.delphi.org.nz To UnSub, send email to: [EMAIL PROTECTED] with body of "unsubscribe delphi" Web Archive at: http://www.mail-archive.com/delphi%40delphi.org.nz/