Re: Disposing of non-components in a component

The docs are exactly right; the Dispose( ... ) in the .designer file does
just that; your solution (moving the code) is perfectly ok and I have never
encountered any situation where the designer tried to modify anything but InitializeComponent( ... )
--Daniel

-----Original Message-----
From: Discussion of development on the .NET platform using any managed language [mailto:[email protected]] On Behalf Of Mark Hurd
Sent: den 30 januari 2008 08:31
To: [email protected]
Subject: [DOTNET-CLR] Disposing of non-components in a component

This is related to the "Consuming your own events" thread.

I have created a component in VS2008 (could have been 2005) that has
one component added using the designer surface, but another
IDisposable property manually added in my code.

I want to (must) call the property's Dispose when disposing happens,
but the boilerplate Dispose(Boolean) in the .designer file doesn't
cater for user-defined disposal. (A perfect case for a Partial
method.)

(If my property was an IComponent I could manually add it to the
components collection, and I could create a wrapper that is just for
that purpose, I suppose.)

The simple solution (ignoring the .designer file) is to handle the
Disposed event and do the extra disposal there.

What I actually did was rip the Dispose(Boolean) from the .designer
file and put in my source and extended it to dispose my property.

I did a fairly extensive search to see if this issue was discussed in
the help files or on the web and the only reference(*) I found just
says "This implementation (of Dispose(Boolean) can be overridden to
provide custom cleanup code.", but it doesn't say how to.

(*) ms-help://MS.MSDNQTR.v90.en/dv_fxmclicc/html/58444076-a9d2-4c91-b3f6-0e180dc0695d.htm

Any definitive resources or just opinions welcome.

Regards,
Mark Hurd, B.Sc.(Ma.)(Hons.)

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