ComVisible Warning CA1405

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ComVisible Warning CA1405
Visual Studio Code Analysis shows ComVisible 'Warning CA1405' 
Marcus from London




Posts: 25
Joined: 2015-04-12
Hi Guys,

I question more out of curiosity than anything.

I have my project assembly flagged as COM-Visible.

Meanwhile I ran VS Code Analysis and it displayed 'Warning CA1405' for each Advance Pane in my project with the following message:

'adxWordPane01' is marked ComVisible(true) but has the following ComVisible(false) types in its object hierarchy: 'ADXForm'
Express C:\Files\Projects\Express\Express\adxWordPane01.vb

So 2 questions if I may:

1. Is it indeed correct to have the project marked as COM-Visible?

2. If it is correct to mark the project as COM-Visible, should I heed this warning or ignore it?
If I should heed it, what's the appropriate course of action?


As an aside, I can find the following in AssemblyInfo.vb:


<Assembly: AssemblyVersion("1.4.4.0")>
<Assembly: ComVisible(True)>


But I can't locate any other instances of "ComVisible" in the solution.

P.S. The project has been running fine without any problems, so I was curious as to whether this 'really' was a legitimate issue or if VS Code Analysis was just being pedantic.

with thanks - Marcus
Posted 27 Apr, 2017 01:28:25 Top
Andrei Smolin


Add-in Express team


Posts: 14094
Joined: 2006-05-11
Hello Marcus,

1. Correct.
2. Ignore it.

Marcus from London writes:
But I can't locate any other instances of "ComVisible" in the solution.


This ComVisible instance is applied on the assembly level; no ComVisible instances are required (unless you need to mark some type or member as non-visible to COM).

Marcus from London writes:
VS Code Analysis was just being pedantic


I think so.

Regards from Belarus (GMT+3),

Andrei Smolin
Add-in Express Team Leader
Posted 27 Apr, 2017 04:25:45 Top
Marcus from London




Posts: 25
Joined: 2015-04-12
Thanks Andrei, that's just wanted I wanted to hear.

Cheers - Marcus
Posted 27 Apr, 2017 06:46:58 Top
Andrei Smolin


Add-in Express team


Posts: 14094
Joined: 2006-05-11
You are welcome!

Regards from Belarus (GMT+3),

Andrei Smolin
Add-in Express Team Leader
Posted 27 Apr, 2017 07:00:20 Top