I would like to load a class library at runtime. As such, I thought I could use reflection to do so.However I am receiving the exception "Unable to cast object of type 'MyLibrary.LogSystem' to type 'MainApp.ILog'." in my main application. To start with I created a Class Library (VS2010) with a simple interface and one class that implements the interface.
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Our company has an app that load their components by System.Reflection.Load (By the way, an awesome technique )But, we start to monitorate the application and detect a extrange grow up of memory (actually when our application still all day on air, their allocate memory on task manager is 200 MB plus memory) And all of our components (60 plus DLLs) is load by this technique.My doubt is how to deallocate this assemblies or how the best way to deallocate any assemblies loaded by the System.Reflection.Assemblie.Load method?
View 10 RepliesHow to get property.value from reflection.assembly?
Dim assembly As Assembly = assembly.GetExecutingAssembly()
For Each assemblyType As Type In assembly.GetTypes()
If assemblyType.IsSubclassOf(GetType(Form)) Then
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I am reference DLL files programming in my application. My question is once they have been called and used is there anyway to "un-reference" them so I can move them?
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I receive this error as "Assembly Load Error" whenever adding a form or other object that has to be inherited.
"Unable to load assembly. Ensure that the file is a valid .net Framwork assembly"
I have a self-generated code in one assembly which in some of the lines includes properties, I was wondering how can I retrieve them? Especially when that class is a view object and does not contain any parameters so we can do it by data adapter and finding for example insert or update parameter.
View 1 RepliesWe are seeing an Exception while trying to get the types from an assembly using Reflection.
Dim assemblyLibrary As Assembly = Assembly.Load(System.IO.File.ReadAllBytes(testSetAssemblyPath))
'Getting all class types
Dim classTypes As System.Type() = assemblyLibrary.GetTypes()
I've got an assembly (loaded as ReflectionOnly) and I want to find all the namespaces in this assembly so I can convert them into "using" ("Imports" in VB) statements for an auto-generated source code file template.
Ideally I'd like to restrict myself to top-level namespaces only, so instead of:
using System;
using System.Collections;
using System.Collections.Generic;
you'd only get:
using System;
I noticed there is a Namespace property on the System.Type class, but is there a better way to collect Namespaces inside an assembly that doesn't involve iterating over all types and culling duplicate namespace strings?
i am writing a simple games client using an XNA 2.0 engine to play games. The games are written in dll files and the client uses the assembly.loadfrom method to read and execute the games accordingly...Now this all works fine on my computer and my laptop. However when i give it to my friend he gets this error and the dll doesnt load - "Unable to load one or more of the requested types. Retrieve the loader exceptions property for more information"
View 1 RepliesI am working on a program that requires me to load 2 dll at runtime.My code is as shown below:
View 2 RepliesI want to use reflection to dynamically call a dll (not an assembly, non-managed, possibly COM object model) in vb.net.I've seen several different methods of calling a method in a dll that is a .net assembly - but I have not found the way to dynamically call a method inside of a dll like user32.dll or winmm.dll. I believe this would be called late-binding?
The reason I'm asking is because I am building a language that will depend on external libraries for lots of different functionality. An example (in this language I'm building):
Declare Function mciSendStringA using "winmm.dll" (strCommand As String, strReturn As String, returnLength As Integer, blah As Integer) As Integer
Declare Function WriteConsoleA using "kernel32.dll" (hConsoleOutput As Integer, lpBuffer As String, numberofcharstowrite as Integer, lpReserved as Integer) As Boolean
When I build the interpreter for the call to mciSendString in winmm.dll, how can I use reflection to handle this? I want the user to be able to reference any dll/method they wish.Can I get some guidance in the right direction? Perhaps even some vb.net code that I can take apart and understand?
I have a solution with two projects within:
Company.Project.vbproj
Company.Project.Tests.vbproj
Within the Company.Project.vbproj assembly, I have a class FriendClass.vb which scope is Friend (internal in C#).Now I wish to test this FriendClass.vb from within the Company.Project.Tests.vbproj assembly. I know about the InternalsVisibleToAttribute, but that is not an option in Visual Basic .NET 2.0, as it is only available with C#, in .NET 2.0 (see here).I would like to create myself a proxy class using this internal FriendClass from within my testing assembly, so that I could instantiate it and do the testings accordingly.
When ever I finish simple programs no matter what it is and i click to debug it it comes up"Error while trying to run project:could not load file or assembly"project name" or one of its dependencies.the module was expected to contain an assembly manifest"
View 4 RepliesOne of them is giving us trouble in only 1 spot out of the 4 spots we use it at:The trouble spot is a windows form project that uses reflection to dynamically load some DLLs that run long running processes. One of these long running processes is an agent that relies on one of our vender DLLsWe're getting the missing assembly exception at the point where we first enter a function that references the library. I already checked the silly things such as if we had forgotten to move a reference from the old version to the new version, but that's not the case. I also checked the bin directory of the project and the assembly is there.
View 3 Repliesso I want to go start using System.Reflection to load my dlls from a special folder as I never did this before and thought I should give it a try. now I'm wondering how to do this. below I have my dll code and my form code I need to know how to use the sub from my dll in my form if I use Assembly.LoadFrom
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I have a file name, like "Foo.dll," for a library that I know is in the bin directory. I want to create an Assembly object for it. I'm trying to instantiate this object from a class that's not a page, so I don't have the Request object to get the path. How do I get the path I need to use Assembly.Load()?
View 3 RepliesHow does CLR load assembly?
View 2 RepliesCan somebody show an example of loading a standalone assembly, enumerating its methods and invoking one?
View 17 RepliesThis is my Errormessage:
Could not load file or assembly 'file:///C:Windowssystem32Rule.dll'. The system cannot find the file specified.
The problem is that the same exe works in my development environment but not on productive server. The program is a tool that should run as a Scheduled Task on Windows Server 2008. It consists of an exe, one so called Database.dll and the Rule.dll. The exe should load the Rule.dll dynamically in codebehind but it fails with the above error only when started from Task Scheduler. Why is it looking in System32 folder and not in the Application folder? Is it an UAC-issue?
'Load the rule engine into memory
Dim asmRule As System.Reflection.Assembly = Nothing
Try
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I'm working with a 3rd party assembly to implement something in our in-house software. I can make the refence and work with the library without a problem, but when I run the program to test it i'm getting this error "Can't load file or assembly "assembly file" nor either of its dependencies. The system couldn't find the specified file" (i'm from Mexico, exception is in Spanish so i had to tanslate it, sorry for the poor translation) I have given read and write permission to the file, the folder, and for all users and still wont load it. I saw that the assembly has the PublicKeyToken=null, does that have any to do with that i cant load the assembly?
View 3 RepliesI am getting the following error message below and don't know why. I've even rebooted my machine and it still won't work.
[QUOTE* Exception Text **************
System.TypeInitializationException: The type initializer for 'EBOLVendorReports.modIO' threw an exception. ---> System.BadImageFormatException: Could not load file or assembly
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if I want to open my vs2008 project, I get the error "Could not load file or assembly 'Microsoft Build Engine, Version=3.5.0.0, Culture=neutral, .... or one of its dependencies. The system can't find the specified file." Yesterday it has no problem and today I get this message. I have uninstalled nothing, I have net framework 3.5 and in the meantime 4.0 too, I use win 7 x64. I tried to repair the install of vs2008 with the dvd, no succes. what I should do to get this to work again? I don't want to reinstall win 7 (inkl. format the system drive).
EDIT: I checked the system with the net verify tool, and it comes out, that some dll-s in the assembly directory are missing. Now, I clean up all net framework on the system, then I will install the net framework 3.5 sp1 and let's see, whether it works or not.
EDIT 2: I even can't install the net framework 3.5 sp1. I downloaded the full pack from microsoft and if I click on it, nothing happens. Why?
EDIT 3: after reinstalling all vs2008 components and after running the net removal tool again, I wanted to install vs2008 back. And the install says: the net framework 3.5 (x64) is installed. I know, win 7 contains it. Then how the hell can I uninstall and reinstall the net framework 3.5??
Usually, when I create an application, all I need to do is copy the .exe file from the "inDebug" folder to run onto other machines.
But this time, I've got a 3rd party control. So, copying the .exe isn't good enough. I get a message as soon as the application loads "Could not load file or assembly ..."
I have added a "Setup and Deployment" to the project, but that still doesn't seem to include all of the files to the 3rd party control.
Because after successfully installing this application, the same error message is displayed "Could not load file or assembly ..."
how I can get this application to run on another machine without installing this 3rd party control first?
I created a setup file for my project, and i keep getting a can not load file or assembly error.There are no erros in my build or project.I can test this, and it works fine on my localbox wile in my vs.net project.When i create a setup file, and test it on another machine, i get this error below.
View 3 RepliesAfter working all morning and finally getting my dll to talk to my rdlc files, I decided to import my functions into my other code, but I get the aforementioned error.My dll is in my PrivateAssemblies folder as well as both my debug and release folders (x86 in case you were wondering).
View 3 RepliesI created two projects. They are VB.Net dll and c# .net dll file. I am using VB.net dll file into c#.dll file. when i test c#.net dll file it is giving error message Could not load assemble. if i use both then it is working fine.But i have to use only one dll file. Let me know how can i do with only c#.net dll file.
View 1 RepliesI am working on a project where I have to load assemblies (lets call them tasks) at runtime, run the task and then be able to kill off the whole assembly so that the dll can be replaced without interrupting the main application.There are many of these tasks running within the main application,some run sequentially and some run in parallel.Occasionally one or to of these tasks need to be updated and then re-added to the queue. Currently we are stopping the entire application and interrupting the other tasks at whatever stage they are at, which is not ideal.I have figured out that I will have to load each assembly into a separate AppDomain, but loading the assemblies in those domains is proving difficult, especially when I need to actually run the tasks and receive events from them.I have been looking into this problem for a couple of days and have still not managed to get a working proof-of-concept.
I have an Interface for the tasks which includes a 'run' and 'kill' method (subs) and a 'taskstep','complete' and 'killed' event.'taskstep' returns an object to be cached later, 'complete' fires when the whole task is done and 'killed' fires when it is ready to be unloaded.There should also be a timeout on the whole process of two hours and a timeout of 2 minutes on the killed event in case it gets stuck, at which point I would like to be able to unload it, forcing any threads to terminate (which is what 'kill' should do anyway).Each assembly may contain several tasks, all of which should loadable be unloadable.I have no problems loading these tasks as 'plugins' but am lost when trying to both use them and unload them. If I have to create some elaborate wrapper then so be it but is what I need even possible? I have tried inheriting from MarshalByRefObject but I do not even know the assembly fullname unless I load it first, which then locks the file. I have tried loading from a byte array of the assembly. This means that the file is not locked but a copy of it remains in the current appdomain. This will become problematic over the following months / years![code]
I have a web application in .Net in which I use Ajax controls in some pages. Those pages are working in localhost, but when hosted, the pages in which Ajax included shows following error.
Server Error in '/Allforkids' Application.
Security Exception
Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file.
Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
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let's say I have 5 DLL files that are each a partial class, that they should form together... Is there a way I could load these 5 files into 1 assembly object ?
View 2 RepliesI have developed one class library using .net 3.5 framework and i am using this in another project developed in .Net 2.0 framework, in this case i m getting the following error. Could not load file or assembly 'AssemblyName, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
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