What is the best strategy for dynamic loading private assemblies in asp.net?
I understand, and have confirmed, that any dll placed in the app's /bin dir
will get loaded on startup. This is not desirable.
I have a web service that, based on an input parameter, dynamically loads A,
B or C library. I also understand that an separate AppDomain is needed to
explicitly unload the Assembly. No other apps will use these assemblies.
Do I need an IPlugin Interface type architecture to correctly achieve this?
Where should I put the "sub" assemblies?
Do I use Load, LoadFrom or LoadFile?
Regards,
Brian
4  2480 
Your first statement is not true. Assemblies are loaded the first time a
type is loaded from the assembly.
HTH,
bill
"BrianS" <Br****@discuss ions.microsoft. com> wrote in message
news:47******** *************** ***********@mic rosoft.com... What is the best strategy for dynamic loading private assemblies in
asp.net? I understand, and have confirmed, that any dll placed in the app's /bin
dir will get loaded on startup. This is not desirable.
I have a web service that, based on an input parameter, dynamically loads
A, B or C library. I also understand that an separate AppDomain is needed to
explicitly unload the Assembly. No other apps will use these assemblies.
Do I need an IPlugin Interface type architecture to correctly achieve
this?
Where should I put the "sub" assemblies?
Do I use Load, LoadFrom or LoadFile?
Regards,
Brian
This is true for Windows forms, but not Asp.Net.
Throw any dll in yopur apps /bin dir, then on startup query the assembly
with reflection on startup:
Dim myAssemblies() As [Assembly] = AppDomain.Curre ntDomain.GetAss emblies
asp.net always loads assemblies because of machine.config setting <add
assembly="*" />
"William F. Robertson, Jr." wrote: Your first statement is not true. Assemblies are loaded the first time a
type is loaded from the assembly.
HTH,
bill
"BrianS" <Br****@discuss ions.microsoft. com> wrote in message
news:47******** *************** ***********@mic rosoft.com... What is the best strategy for dynamic loading private assemblies in
asp.net? I understand, and have confirmed, that any dll placed in the app's /bin
dir will get loaded on startup. This is not desirable.
I have a web service that, based on an input parameter, dynamically loads
A, B or C library. I also understand that an separate AppDomain is needed to
explicitly unload the Assembly. No other apps will use these assemblies.
Do I need an IPlugin Interface type architecture to correctly achieve
this?
Where should I put the "sub" assemblies?
Do I use Load, LoadFrom or LoadFile?
Regards,
Brian
I was not aware of that. Thanks for the info.
When I have needed to create an instance of a type in a difference assembly,
I have used LoadFile.
System.Reflecti on.Assembly ass = System.Reflecti on.Assembly.Loa dFile(
assemblyPath );
HTH,
bill
"BrianS" <Br****@discuss ions.microsoft. com> wrote in message
news:EF******** *************** ***********@mic rosoft.com... This is true for Windows forms, but not Asp.Net.
Throw any dll in yopur apps /bin dir, then on startup query the assembly
with reflection on startup:
Dim myAssemblies() As [Assembly] = AppDomain.Curre ntDomain.GetAss emblies
asp.net always loads assemblies because of machine.config setting <add
assembly="*" />
"William F. Robertson, Jr." wrote:
Your first statement is not true. Assemblies are loaded the first time
a type is loaded from the assembly.
HTH,
bill
"BrianS" <Br****@discuss ions.microsoft. com> wrote in message
news:47******** *************** ***********@mic rosoft.com... What is the best strategy for dynamic loading private assemblies in
asp.net? I understand, and have confirmed, that any dll placed in the app's
/bin dir will get loaded on startup. This is not desirable.
I have a web service that, based on an input parameter, dynamically
loads A, B or C library. I also understand that an separate AppDomain is needed
to explicitly unload the Assembly. No other apps will use these
assemblies.
Do I need an IPlugin Interface type architecture to correctly achieve
this?
Where should I put the "sub" assemblies?
Do I use Load, LoadFrom or LoadFile?
Regards,
Brian
If I were you, I'd use a different name
for the Reflection.Asse mbly instance.
:-)
Juan T. Llibre
ASP.NET MVP
===========
"William F. Robertson, Jr." <th****@nameht. org> wrote in message
news:O0******** ********@TK2MSF TNGP14.phx.gbl. .. I was not aware of that. Thanks for the info.
When I have needed to create an instance of a type in a difference
assembly,
I have used LoadFile.
System.Reflecti on.Assembly ass = System.Reflecti on.Assembly.Loa dFile(
assemblyPath );
HTH,
bill
"BrianS" <Br****@discuss ions.microsoft. com> wrote in message
news:EF******** *************** ***********@mic rosoft.com... This is true for Windows forms, but not Asp.Net.
Throw any dll in yopur apps /bin dir, then on startup query the assembly
with reflection on startup:
Dim myAssemblies() As [Assembly] = AppDomain.Curre ntDomain.GetAss emblies
asp.net always loads assemblies because of machine.config setting <add
assembly="*" />
"William F. Robertson, Jr." wrote:
> Your first statement is not true. Assemblies are loaded the first time a > type is loaded from the assembly.
>
> HTH,
>
> bill
>
>
> "BrianS" <Br****@discuss ions.microsoft. com> wrote in message
> news:47******** *************** ***********@mic rosoft.com...
> > What is the best strategy for dynamic loading private assemblies in
> asp.net?
> > I understand, and have confirmed, that any dll placed in the app's /bin > dir
> > will get loaded on startup. This is not desirable.
> >
> > I have a web service that, based on an input parameter, dynamically loads > A,
> > B or C library. I also understand that an separate AppDomain is
> > needed to > > explicitly unload the Assembly. No other apps will use these assemblies. > >
> > Do I need an IPlugin Interface type architecture to correctly achieve
> this?
> >
> > Where should I put the "sub" assemblies?
> >
> > Do I use Load, LoadFrom or LoadFile?
> >
> > Regards,
> > Brian
>
>
>
This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
by: Parag Joshi |
last post by:
hi,
I am facing a wierd problem with dyanamic class loading.
I have a namespace called ETS.DAO which contains my
Data Access Object classes. All these classes implement a
common interface which is also in the same namespace.
I have a namespace ETS.Controller which contain my
comtroller classes.
My Web client instantiates the controller who in turn
fires appropriate methods on the DAOs.
In the controller i am using dynamic class loading...
|
by: Ender |
last post by:
I have an application that I would like third party developers to be
able to create Plug-ins that will be dynamically loaded into our
application to extend functionality.
I have utilized the "Let Users Add Functionality to Your .NET
Applications with Macros and Plug-Ins" article at MSDN for the dynamic
loading of DLLs
http://msdn.microsoft.com/msdnmag/issues/03/10/Plug-Ins/default.aspx
|
by: Thomas W. Brown |
last post by:
I have a C# library that dynamically creates a in-memory assembly and creates
instances of the objects therein. From .NET applications, this works
perfectly well.
However, when I wrap this library in a COM wrapper, the instantiation of
objects in this dynamic assembly fails. But if instead of dynamically
compiling to an in-memory assembly I compile to disk and then use
Assembly.LoadFrom(...) then things work again.
It appears that...
|
by: Matt |
last post by:
I'm hoping someone can steer me in the right direction to try to do the
following:
I am developing an application where we receive files from customers. Right
now we receive a variety of formats. I was looking at writing some type of
base application that would allow me to add-in either new assemblies or
plugins, don't know how or which way, for different scenarios. We may
just recieve a text file so an assembly would handle...
|
by: dhnriverside |
last post by:
Hi guys
I'm writing a console app in C# for which i want to enable the user to have
several "plug-ins". The app has a switch to set the plug-in to use, and at
runtime the required dll is loaded and executed.
I had thought I could do this with a C# class compiled, and just load the
relevant dll file for the class we want, and call it as normal. Of course
this won't work because C# class files need to be compiled into the app?
Correct?
| | |
by: Barry Kelly |
last post by:
I'm designing an application framework which will, amongst other things,
live in an assembly hosted in the ASP.NET worker process, servicing
webservice requests.
Here's the scenario:
APPFX is our application framework assembly. It has no life of its own -
it's designed to provide components that are glued together by another, main
application assembly - let us call it APP. Thus, APP uses APPFX, and APP is
registered with ASP.NET as a...
|
by: Stefan Rosenthal |
last post by:
Hi all,
I've an OL-Style App loading MDIChild-Windows (Panes) on demand dynamicaly
at runtime.
Loading the Forms works fine but establishing an EventHandler (to receive
information from
the loaded Panes by the Container) fails with the Message "Cannot bind to
...." in the line where
the Delegate should be created.
|
by: George Meng |
last post by:
I got a tough question:
The backgroud for this question is:
I want to design an application works like a engine.
After release, we can still customize a form by adding a button, and source
code for the button. (This is done by the form itself, not by using VS.Net)
(button and source code should be a record in database, these information
should be retrieve from database when the form shows up)
What I want is:
|
by: Sean M. DonCarlos |
last post by:
I have an unmanaged Win32 app that looks up the name of a DLL (unknown at
compile time) from an external location, loads it with LoadLibrary, and then
uses GetProcAddress on three exported functions (whose names and signatures
are known at compile time). The app then calls these functions as needed
throughout its execution. Depending on circumstances, there may be zero, one,
or many separate DLLs loaded that all conform to this pattern...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
| | |
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| | |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
| |
