Lock a SubVI on a BD

[paul_cardinale]

We can lock front panel objects.  But I would like to lock a particular SubVI on a block diagram so it's not deletable.  Is that possible?

[RavensFan]

I've never seen a way to do that.

[thols]

How about this:

Or you could place a decoration box on top of it:

Unfortunately, things on the BD cannot be grouped, so the decoration will not follow the sub-VI.

Perhaps this is something for the idea exchange.

[paul_cardinale]

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@thols wrote:

How about this:

Or you could place a decoration box on top of it:

Unfortunately, things on the BD cannot be grouped, so the decoration will not follow the sub-VI.

Perhaps this is something for the idea exchange.

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That "Do not delete!" is like having a button like this:

[Kyle97330]

Just out of curiosity, what's the use case here?

The only thing I can think is that you're creating a template VI of some kind which then need to be modified, and you want to prevent anyone who modifies the template from removing some vital subVI.  Is it something like that?

[RTSLVU]

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That "Do not delete!" is like having a button like this:

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LOL The infamous "Don't Press" button... (I still remember that one from the 1970's "Super Friends" Saturday morning cartoon)

😛

I think a note on the block diagram explaining what the VI is for and why it should not be removed  should be enough.

[thols]

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@RTSLVU wrote:

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That "Do not delete!" is like having a button like this:

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LOL The infamous "Don't Press" button... (I still remember that one from the 1970's "Super Friends" Saturday morning cartoon)

😛

I think a note on the block diagram explaining what the VI is for and why it should not be removed  should be enough.

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I assume that you have already been in a situation where this happened, where someone wondered why a VI was even there, and decided to delete it. A comment connected to the VI that may be tempting to delete should be enough, yes, and of course there is better explanation text than "do not delete". To emphasize you could color the comment red perhaps, or perhaps: