Display list of Xrefs in a Field via LISP

[crohloff.72988]

I just read an article in AUGIWORLD about combining AutoLisp & Fields. Does anyone know of a way to use a field to show the x-refs attached to a dwg?

Thanks,
Chris

[rkmcswain]

No, but this is one thing that the old RTEXT can still do.

Example: $(xrefs,3)

See the ET help file (\Express\acet.chm) for more details.

[T.Willey]

I don't know about fields, but I do know how to get a list of xrefs.

(defun XrefList (Doc / Lst)

(vlax-for Blk (vla-get-Blocks Doc)
 (if (equal (vla-get-IsXref Blk) :vlax-true)
  (setq Lst (cons (vla-get-Name Blk) Lst))
 )
)
Lst
)

Called like (for current drawing)

(XrefList (vla-get-ActiveDocument (vlax-get-Acad-Object)))

Must have loaded

(vl-load-com)

into the drawing at least once before you can use this.

[rkmcswain]

I bet he was inquiring about using a FIELD because he wants a string that updates automatically. Although RTEXT has it's other limitations, it does update automatically, compared to having to run the lisp code each time.

[crohloff.72988]

Correct. In the meantime will have to look into RTEXT. Thanks for the help.

[T.Willey]

You could use reactors then once the text in the drawing, to update it. Just another idea.

[crohloff.72988]

I can't figure out why this isn't working:

MTEXT. Insert field. Add Diesel Expression (or something like that). I type $(xrefs,2). Ok.

The result is $(XREFS)??

I tried saving the dwg. I closed & reopened the dwg. I had one x-ref already in the dwg, but I added a couple more just in case, but the field doesn't show the x-refs.

Can anyone tell what I'm doing wrong?

Thanks a lot.

[rkmcswain]

Can anyone tell what I'm doing wrong?

Thanks a lot.

Please re-read my original reply.

$(xrefs,2) is not a DIESEL string and it doesn't work in a FIELD.

That is special syntax that only RTEXT recognizes.

See the ET help file (\Express\acet.chm) for more details.

[crohloff.72988]

Thanks RK. What was throwing me off is that in ET Help it does refer to $(xrefs) as a DIESEL function. However, for another function, $(getprop), it says it is supported only in RText objects. Apparently the same is true for $(xrefs).

[Hammer.John.J]

there seems to be a limit on the number of characters rtext will dislplay... so be aware not all of your xrefs may display, i ended deleting this part of our tag because of that