Missing data type connection for references to cluster variables with typedef dependence

[JensM]

Hi everybody,

within the attached vi you'll find an example DataTypeRefExample showing a maintenance intensive direct solution as well as a workaround which no longer should be necessary within future Labview versions.

Best regards,

Michael Theumert

[Ben]

At first read I thought you were posting the "holy grail" of LabVIEW.

Make the control on your sub-VI a type def as well. You will have to maintain the typedef manually but it should work.

Ben

[JensM]

Sorry, I just forgot to include some files. Attached to this message you'll find an updated version of the sample vi's as zip archive.

Within this archive you'll also find a closer description in text format.

Message Edited by JensM on 07-09-2007 03:03 PM

[JensM]

sorry, I now seem to be some sort of confused. just mixed to threads. just forget my last post.

[JensM]

Hi Ben,

thanks for your quick answer. The solution that you've describe above is in my opinion very inconvenient to maintain,
because in case of changing the main vi's control type-def you'll thereby always have to change the sub-vi type-def
as well.

What I want is to only have to change the cluster type-def.

Best regards,

Michael Theumert

[Ben]

Make the control used to pass in the reference to the sub-VI a typedef in additionl to the cluster, and use that typedef in all of the sub-VI's.

Ben