"activex server returned an error" - invalid index.

[muthu123]

Dear friends,

The Following code is returns error in one of our systems in our concern and in all others are working fine.

 

(vlax-safearray->list (vlax-variant-value (vla-getAttributes Blk_name)))

 

yours,

Muthu.

[Lee Mac]

Perhaps the block does not have attributes, a few ways to check (in all examples 'bObj' is a VLA Block Reference Object.

 

( 1 )

(vlax-invoke bObj 'GetAttributes)

 

Will return nil if the block does not have attribs.

 

( 2 )

 

Check that the block has attributes first:

 

(eq :vlax-true (vla-get-HasAttributes bObj))

( 3 )

 

Check the upper bound of the first dimension of the safearray, a negative upper bound indicates an empty safearray.

 

(< 0
 (vlax-safearray-get-u-bound
   (vlax-variant-value (vla-getAttributes bObj)) 1
 )
)

 

Lee

[muthu123]

  Lee Mac said:

Perhaps the block does not have attributes, a few ways to check (in all examples 'bObj' is a VLA Block Reference Object.

 

( 1 )

(vlax-invoke bObj 'GetAttributes)

 

Will return nil if the block does not have attribs.

 

( 2 )

 

Check that the block has attributes first:

 

(eq :vlax-true (vla-get-HasAttributes bObj))

 

( 3 )

 

Check the upper bound of the first dimension of the safearray, a negative upper bound indicates an empty safearray.

 

(< 0
 (vlax-safearray-get-u-bound
   (vlax-variant-value (vla-getAttributes bObj)) 1
 )
)

 

Lee

 

 

Dear lee,

 

But the thing is the same drawing is working in all other systems.

I don't know how to solve this?. Is there any change in Acad settings?

 

Sincerly,

Muthu.