enabling disabled menu item

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dengerous@mail.ru - 07 Nov 2005 21:39 GMT

first, I set command control to be disabled , then at some point I want
to enable it.
so here's what I tried in QueryStatus method:

if EnabledFlag then
statusOption = vsCommandStatusSupported
else
statusOption = vsCommandStatusEnabled + vsCommandStatusSupported
end if

But, unfortunately, the item stays disabled all the time. Any ideas?

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Mikhail Arkhipov (Microsoft) - 08 Nov 2005 04:41 GMT

On 11/7/05 13:39, in article
1131399586.714090.217230@f14g2000cwb.googlegroups.com, "dengerous@mail.ru"

> first, I set command control to be disabled , then at some point I want
> to enable it.
[quoted text clipped - 7 lines]
>
> But, unfortunately, the item stays disabled all the time. Any ideas?

I am not sure about managed code, but in C++ it is important not only to set
correct flags, but also to return S_OK and not OLE_E_UNKNOWNGROUP.

Thanks
Mikhail Arkhipov (Microsoft)
-- This post is provided 'AS IS' with no warranties and confers no rights

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Carlos J. Quintero [VB MVP] - 08 Nov 2005 12:14 GMT

> first, I set command control to be disabled ,

How?

> then at some point I want to enable it.
> so here's what I tried in QueryStatus method:
[quoted text clipped - 6 lines]
>
> But, unfortunately, the item stays disabled all the time. Any ideas?

Basically you should avoid that EnabledFlag, or at least update it
somewhere. I mean, you will want your command enabled or disabled depending
on some condition (for example, if a code window is active, but not if a
designer window is active). VS.NET will call your QueryStatus method
whenever it needs, so your code should look like this:

if ( MyFunctionToCheckCodeWindow(applicationObject.ActiveWindow) )
statusOption = vsCommandStatusEnabled + vsCommandStatusSupported
else
statusOption = vsCommandStatusSupported
end if

You see, no need for EnabledFlags...

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Best regards,

Carlos J. Quintero

MZ-Tools: Productivity add-ins for Visual Studio .NET, VB6, VB5 and VBA
You can code, design and document much faster.
Free resources for add-in developers:
http://www.mztools.com

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dengerous@mail.ru - 08 Nov 2005 18:07 GMT

Thank you , Carlos. But the problem is not in the flag. The flag is
switched fine. The problem is once statusOption of command was set to
vsCommandStatusSupported , changing it to vsCommandStatusEnabled +
vsCommandStatusSupported makes no effect at all.
You can try your code, it just doesn't work.

Reply to this Message

Carlos J. Quintero [VB MVP] - 10 Nov 2005 09:32 GMT

It should work the next time that QueryStatus is called by the IDE. It works
for me using VS 2005 Release Candidate.

Signature

> Thank you , Carlos. But the problem is not in the flag. The flag is
> switched fine. The problem is once statusOption of command was set to
> vsCommandStatusSupported , changing it to vsCommandStatusEnabled +
> vsCommandStatusSupported makes no effect at all.
> You can try your code, it just doesn't work.

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enabling disabled menu item

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