Topic: Delete Block Table entity

[Matt__W]

• Doesn't account for anonymous Dynamic Block names
• Doesn't account for Blocks on Locked Layers
• Doesn't account for nested blocks

It doesn't do much, does it??  It's kinda like the free-loading-college-buddy of LSP routines. 

It just hangs around and smokes all your pot.

[cadman6735]

It doesn't do much, does it??  It's kinda like the free-loading-college-buddy of LSP routines

Cold man, Cold...    I was pleased with my accomplishment, thanks for shattering my ego...   just kidding

Very cool

Thanks for the feed back, this is what I need...

[cadman6735]

Hi Lee

Thanks for the code and advice.

Since you needn't try to delete the block definition until all the INSERTs have been deleted.

What's wrong with the way I am attmepting to do it?

Code: [Select]

(entdel ent)
(vl-catch-all-apply 'vla-delete (list (vlax-ename->vla-object (cdr (assoc 330 (entget entTblName))))))I first delete the INSERT then (attempt) to delete the block definition one at a time vs deleting all INSERTS then deleting all definitions.  I am going a sequence (entdel) then (vla-delete).
Why is one way better than another?

(I say attempt because it only deletes a block defintion with the exact name "seal" not all the block definisions in the sset.)

It should delete anything caught by the sset, right?

Thanks for all your help.

[ronjonp]

If you have a thousand blocks the table entry delete will not work until all the blocks are removed. It would most likely be faster to delete all the blocks first then only call the table delete once rather than 1000 times.

Make sense?

[cadman6735]

Hi Ron

Yes, this makes sense.

So if I have 10 blocks of the same definition.  my code will delete one block at a time, so on the first pass I have only deleted one instance of the block leaving 9 behind so it is attempting to delete a definition that can't be deleted because there are still 9 left, right?  But on deleting the last INSERT it should delete the definition right? but this wastes time and probably has a chance to error too.  (I am only guessing about the error part)

Am I on the right track?
Thanks

[ronjonp]

Exactamundo!