Topic: Vla-AddAttribute in Block Inser (IAcadBlockReference)

[Marc'Antonio Alessi]

Is it possible with ActiveX add attributes (IAcadAttributeReference) to a Block (IAcadBlockReference) like vla-AddAttribute do with IAcadAttribute and IAcadBlock?

[roy_043]

You probably know the answer already:

You cannot directly create an attribute reference

[Marc'Antonio Alessi]

You probably know the answer already:

You cannot directly create an attribute reference

Thanks again, I was hoping someone had invented a few tricks... 
The only option is to re-insert the block with vla-insertblock after adding with vla-AddAttribute the IAcadAttribute to the IAcadBlock...

[MP]

The only option is to re-insert the block with vla-insertblock after adding with vla-AddAttribute the IAcadAttribute to the IAcadBlock...

Not entirely true if you step outside the confines of activex. If you walk a block instance's linked list ... gathering the dxf data as you go for the insert, attributes ... add any new desired ATTRIB's dxf data, cap it with a proper SEQEND def, then entmake each entry (after stripping any -1, -2, 5 or 330 entries). Subtitle: you don't have to add the ATTDEFs to the block definition. Yes/Note: the new block instance will not match the block definition. I was using this technique about 20 years ago and it still works -- I  had ATTRIB-less block defs -- adding constant attributes on the fly -- per instance -- as need dictated.

[Marc'Antonio Alessi]

The only option is to re-insert the block with vla-insertblock after adding with vla-AddAttribute the IAcadAttribute to the IAcadBlock...

Not entirely true if you step outside the confines of activex. If you walk a block instance's linked list ... gathering the dxf data as you go for the insert, attributes ... add any new desired ATTRIB's dxf data, cap it with a proper SEQEND def, then entmake each entry (after stripping any -1, -2, 5 or 330 entries). Subtitle: you don't have to add the ATTDEFs to the block definition. Yes/Note: the new block instance will not match the block definition. I was using this technique about 20 years ago and it still works -- I  had ATTRIB-less block defs -- adding constant attributes on the fly -- per instance -- as need dictated.

Thanks for the trick, I am looking for a solution for AttSync in Odbx doc see: https://www.theswamp.org/index.php?topic=52255.msg572281#msg572281
Actually I am able to Sync (insertpoint, style, alignment ect...) all attribs but not add the missing ones...

[Lee Mac]

The only option is to re-insert the block with vla-insertblock after adding with vla-AddAttribute the IAcadAttribute to the IAcadBlock...

Not entirely true if you step outside the confines of activex. If you walk a block instance's linked list ... gathering the dxf data as you go for the insert, attributes ... add any new desired ATTRIB's dxf data, cap it with a proper SEQEND def, then entmake each entry (after stripping any -1, -2, 5 or 330 entries). Subtitle: you don't have to add the ATTDEFs to the block definition. Yes/Note: the new block instance will not match the block definition. I was using this technique about 20 years ago and it still works -- I  had ATTRIB-less block defs -- adding constant attributes on the fly -- per instance -- as need dictated.

Thanks for the trick, I am looking for a solution for AttSync in Odbx doc see: https://www.theswamp.org/index.php?topic=52255.msg572281#msg572281
Actually I am able to Sync (insertpoint, style, alignment ect...) all attribs but not add the missing ones...

Wouldn't it be easier to delete & re-insert the block reference, configuring the properties & attribute values to match the original?

[MP]

I am looking for a solution for AttSync in Odbx doc see: https://www.theswamp.org/index.php?topic=52255.msg572281#msg572281 ...

Had I known that I wouldn't have polluted the thread; sorry.

[Marc'Antonio Alessi]

I am looking for a solution for AttSync in Odbx doc see: https://www.theswamp.org/index.php?topic=52255.msg572281#msg572281 ...

Had I known that I wouldn't have polluted the thread; sorry.

I do not understand very well (idiomatic phrase), however, thanks to all.