How can a component be added to an existing cluster programmatically?

[dtsantil]

I want to create clusters programmatically, meaning that I want to give the elements types and names (taken for example from a saved .llb file) and have the cluster generated. Also, I don't know how to add elements in an existing cluster, not of course by using the bundle function or manually in the front panel.

Thanks

[tst]

Clusters are fixed data structures - you're not supposed to modify them programmatically.

You might want to look into an array of variants (look in the advanced palette) or into flattening. A variant can hold several data types and you will just need to handle your different types by using something like a case structure or a polymorhic VI for the conversion. You can create a cluster which will hold the name string, type enum and data variant and build that into an array.

[Dynamik]

Hi dtsantl,

Like tst says, your best bet is probably the Variant.  NI hasn't yet unlocked the power to programmatically create diagram objects (... though I believe this capability has been lurking in LabVIEW for 5 or 6 years).  One can create "from scratch" a Variant that represents an arbitrarily complex cluster, but to convert the Variant to the cluster, the cluster typedef needs to be available already.

Cheers!

Message Edited by Dynamik on 03-01-2006 02:20 AM