.NET 3.5 - System.Reflection.Assembly does not release object (DLL
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From: Family Tree Mike on 5 Apr 2010 11:59 "Wolfixx" wrote: > Hello, > > Does anyone of you know how I can force vb.net to remove the handle of a > local DLL which I used beforehand with Reflection. > > Here is a fragment of the code. > I have a base class and a derived class. This app only knows the base class > and creates an Instance of the derived class by using Reflection which works > fine. The only problem I have is that the local DLL file is blocked (I can't > delete it) as long as I don't close the Application > > Dim GetCustomModule as BaseClass > Dim dll As Assembly = > Assembly.LoadFrom("c:\tools\DerivedCass.dll") > For Each assemblytype As System.Type In dll.GetExportedTypes > If assemblytype.ToString = "tools" Then > GetCustomModule = > DirectCast(Activator.CreateInstance(assemblytype), BaseClass) > End If > Next > .... > do something with the Class and then get rid of it > .... > > dll = Nothing > 'now the file c:\tools\DerivedCass.dll is still locked and I can't delete > it. > > Forcing Garbage Collector to run doesn't help at all. I can see through > Sysinternals\ProcessExplorer that AppName.vshost.exe has still a handle on > that file. > > Thanks for any help > Wolfgang > > > . > Armin Zingler responded to your post in the VB.Net group several days ago. From his post: Look at the big "Note" in the middle: http://msdn.microsoft.com/en-us/library/2bh4z9hs.aspx I've no experience with it but maybe you find something in the neighbour topics (about assemblies and application domains).
From: Wolfixx on 9 Apr 2010 00:23 > Armin Zingler responded to your post in the VB.Net group several days ago. > From his post: > > Look at the big "Note" in the middle: > http://msdn.microsoft.com/en-us/library/2bh4z9hs.aspx > > I've no experience with it but maybe you find something > in the neighbour topics (about assemblies and application domains). > > Yes I know but the answer doesn't help me. I though it belong to this newsgroup anyway because it is an issue with the .Net Framework and not VB specific. Any other ideas?
From: Wolfixx on 9 Apr 2010 00:32
"Wolfixx" <wolfixx(a)gmx.at> wrote in message news:#bTCOx51KHA.4832(a)TK2MSFTNGP04.phx.gbl... > >> Armin Zingler responded to your post in the VB.Net group several days >> ago. >> From his post: >> >> Look at the big "Note" in the middle: >> http://msdn.microsoft.com/en-us/library/2bh4z9hs.aspx >> >> I've no experience with it but maybe you find something >> in the neighbour topics (about assemblies and application domains). >> >> > > Yes I know but the answer doesn't help me. I though it belong to this > newsgroup anyway because it is an issue with the .Net Framework and not VB > specific. > Any other ideas? Ignore me. The answer fitted - it's just not possible |