Jon Paris article 'Old Stuff, New Ways: Avoiding Record Locks'

I'm trying to use the technique described in this article: http://www.itjungle.com/fhg/fhg030315-story01.html

I'm running into a compile error where I'm reading the file into the data-structure.

Here's the pertinent code (file and filed names simplified, no, this is not my official naming convention!):


dcl-f InputFile usage(*update:*output) keyed;

dcl-f DisplayFile workstn indds(dsInd);

dcl-ds dsInput likrec(InputRecord:*all) dim(2);

dcl-ds dsDisplay likerec(Screen:*all);

chain(N) dsDisplay.InputField InputFile dsInput(1);
IF %Found(InputFile);
eval-corr dsDisplay = dsFile(1);
ENDIF;


On the CHAIN statement, I'm getting compile error RNF7595 - 'The result data structure DSINPUT does not include a subfield in position 1 for record format INPUTRECORD.'

I've looked and looked, compared my code to the example code in the article, and can't see the problem. What am I missing?

Thanks

Bob Cagle
IT Manager
Lynk, Inc.