selection set of all instances of a specific dynamic block by name in my model space

[mohandis2]

I tried many posts here but did not find what I want

I want to built a selection set of all instances of a specific dynamic block by name in my model space.

Can anyone help?

Thanks.

[Ed__Jobe]

Post what you've tried and why it's not working. FYI, for dynamic blocks, you can't use the Name property. You have to use the EffectiveName property.

[mohandis2]

After some searches I made, I found that there is a bug filtering dynamic blocks by EffectiveName,

I made a selection set of all blocks, than run a loop deleting from that set all blocks that do not match my target block EffectiveName,

Thanks

[Ed__Jobe]

What bug are you talking about?

[mohandis2]

https://forums.autodesk.com/t5/vba/acadselectionset-select-ignoring-my-dynamic-blocks/m-p/8596908

[Ed__Jobe · Accepted solution]

OK, that is not a bug or error. It's just how you have to search for db's. The Name property is likely to be "*U##". So you have to iterate a selection set of blocks and examine their EffectiveName property, which is what I mentioned in my first post.