Unable to hide a command with combo-box

Question

Hi,

I have a command with a combo-box in my unmanaged package. This command is located in the Tools menu. I try to control the visibility of this combo-box in the QueryStatus method of the package:

void
 Update_ComboCommand(const
 CommandHandler& handler, OLECMD* prgCmds, OLECMDTEXT* pCmdText){<br />
    if
(m_EnabledCombo) prgCmds->cmdf = OLECMDF_ENABLED | OLECMDF_SUPPORTED; else
 prgCmds->cmdf = OLECMDF_INVISIBLE | OLECMDF_SUPPORTED;<br />
}

In addition, the combo-box should be invisible if my package is not loaded. So I declare it this way:

#define DIS_DEF         DEFAULTDISABLED | DEFAULTINVISIBLE | DYNAMICVISIBILITY


 


COMBOS_BEGIN


    // Combo Box ID,                    Group ID,                            Priority,    Fill Command ID,                        Width,    Type,        Flags,     Button Text,       Menu Text,                ToolTip Text, Command Name;


    guidVsPackage2CmdSet:cmdidCombo,    guidVsPackage2CmdSet:MyMenuGroup,    0x114,        cmdidComboFill,                            75,        IndexCombo, DIS_DEF, "Package 2 Combo", "Package 2 ComboBox";   


COMBOS_END

In practice in VS2010 when the combo-box should be invisible it is displayed as disabled, including when the package is not loaded. However, if I register my package for VS2005, the combo-box works as expected.

I tried to change the flags of the combo-box to DEFAULTINVISIBLE | DYNAMICVISIBILITY and change the command handler this way:

void
 Update_ComboCommand(const
 CommandHandler& handler, OLECMD* prgCmds, OLECMDTEXT* pCmdText){
    if
(m_EnabledCombo) prgCmds->cmdf = OLECMDF_ENABLED | OLECMDF_SUPPORTED; else
 prgCmds->cmdf = OLECMDF_INVISIBLE | OLECMDF_SUPPORTED | OLECMDF_ENABLED;
}

but this did not yield expected results, too.

What do I do incorrectly? Or is this a bug? This problem is reproduced with a simple example which is a modified wizard's template. The command handler is called. So I don't understand this behavior.

Any help will be appreciated.
Thanks,
Roman

Answer 1

Hi Roman,

I checked with the developer on the new WPF command bars feature. It should indeed be possible to control visibility of combo boxes on menus through QueryStatus. It looks like a bug in VS 2010 Beta 2. No promises, but we'll investigate a fix for the VS 2010 Release Candidate.

Thanks for the report!

- Paul Harrington.

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Visual Studio Platform and Ecosystem