Comments on: SPLimitedWebPartManager Memory Leak?

By: ArianaSype

ArianaSype — Wed, 13 May 2009 12:18:32 +0000

Wow! Thank you very much! I always wanted to write in my site something like that

By: JessicaRich

JessicaRich — Sun, 10 May 2009 17:20:29 +0000

Thanks for posting, definitely going to subscribe! See you on my reader.

By: Incanna

Incanna — Fri, 08 May 2009 05:37:35 +0000

ehh. interesting..

By: admin

admin — Wed, 24 Oct 2007 12:38:43 +0000

The difference is that the web part manager is not using your w instance, it creates its own instance on the following line:

SPWeb web = this.Site.OpenWeb();

In your example you actually have 2 instances of SPWeb, you have your instance “w”, and then there is an instance encapsulated in the web part manager “web”. The web part manager should dispose of the “web” instance, not your “w” instance.

By: Shai

Shai — Wed, 24 Oct 2007 11:07:59 +0000

Hi,
I fail to understand why you feel that disposing of the web part manager should also dispose its owner web?

for instance, if you have code like this:
spweb w = …..
SPLimitedWebPartManager mgr = w.OpenFile(“…”).GetLimitedWebPartManager(…);
mgr.AddWebPart(…);
mgr.Dispose();

w.Title += ” Done!”;
w.Update();
w.Dispose();

See, I continue to work on the web object after disposing of the limited web part manager… It would be a bug if my w.TItle update will fail… no?

By: Peter {faa780ce-0f0a-4c28-81d2-3667b71287fd}

Peter {faa780ce-0f0a-4c28-81d2-3667b71287fd} — Fri, 28 Sep 2007 19:15:20 +0000

Yes, this is exactly what I saw. It didn’t surprise me at all when I got my “outofmemoryexception”; I already had a healthy fear of SharePoint.

By: Jason Fant

Jason Fant — Fri, 08 Jun 2007 05:40:06 +0000

Interestingly enough, Tom Sallese and I attended a session at TechEd today covering the WSS object model. One of the things that the speaker covered as a little known “gotcha” was exactly what you are talking about. It appears that we are going to have to be really careful when playing with the SharePoint’s object model. Good looking out B.