We are having the following setup:
A custom DLL (VB.Net) has a web reference to a custom web service (ASP.Net, let's call it WebService0).
This custom DLL is instantiated by custom .Net EXE program, which make use of the exposed functions in the DLL, which in turn make calls to said WebService0.
e.g. .Net EXE Program calls DLL function which calls WebService0.
This setup works fine.
Now, take this setup to another computer, but instead of calling the DLL from a custom program like above, it is being called from yet another web service layer (let's call this one WebService1). And to test this WebService1 there is another .Net EXE program (not the same one mentioned above).
e.g. .Net EXE Program calls WebService1, which calls custom DLL function, which in turn calls WebService0.
For some reason, this setup throws the following exception:
System.Web.Services.Protocols.SoapException: WebService0 has not been properly Initialized
What could be happening? The cause does not seem to be evident. We have checked everything to the best of our knowledge.
We have searched the internet and there is barely any information about it that we could find.
Any help is very much appreciated.
I guess that your WebService1 is the source of this exception, when calling the DLL. And you do NOT have configuration embeded into DLL itself.
You've propably forgot to configure your WebService1 web.config system.serviceModel section.
Take a look at your .Net EXE Program (the first one) and it's App.Config (or YourExeName.exe.config) to see what system.serviceModel section looks like. I expect at least section to be filled.
Do the same in your WebService1/web.config/system.serviceModel
In case my guess is wrong and you've done this already, show us your configuration.
Related
Background: I have a DLL I created that includes 2 c files. These c files reference a third c file which defines a user defined type (we'll call it class_pointer), which is a pointer of type class.
E.g.
typedef class pointer_class *class_pointer;
then defines the class:
typedef class pointer_class {..}
pointer_class has various variables and functions associated with it that the original 2 c files make use of through class_pointer.
I am using this DLL in an ASP.NET C# web application. I am using PInvoke to import the functions into the dll. However, when I go to call on these functions that involve the class_pointer, the website running on IIS hangs. This does not happen in the VS debugger. If I comment out said class_pointers, everything runs smoothly -- I have access to the DLL and everything.
I have tried changing the permissions on all the DLLs included in my bin directory (just to be safe) for NETWORK SERVICE to have read/execute permissions. The dll will work without the class_pointers, so I don't think it is an issue of permissions. Does anyone have any advice on what might be causing IIS to hang when these class_pointers are involved?
I finally was able to figure this out with the help of Microsoft's debugging tools.
The class_pointers were written by another developer that has since left the place I work. In the pointer_class, there was a function to get the current application path. When running on the web, this was set to the inetsrv directory in SYSWOW64 (The machine I was running on was a 64bit machine). To solve the issue, we set the application path to the website when we are running the web, rather than where the .exe application was running from (SYSWOW64/inetsrv).
Because the application path was wrong, the native dll was unable to load some files in and was putting up popup warning messages. These pop up messages were waiting for a user response and since we couldn't get one on the web, the application hanged!
Hope this helps someone else out there!
I want to make a "properties style web form" that shows the application version for various .NET applications.
If I know the URL e.g. /someapp/default.aspx is it possible via reflection to execute that page and figure out the assembly version?
It's quite easy to find the executing assembly version, but without modifying the other application, is it possible?
Both the property page and the other application is running on the same server and in the same application pool.
Update: I've had some luck with
var url = "~/SomeApp/default.aspx";
var appType = System.Web.Compilation.BuildManager.GetCompiledType(url);
But navigating appType to find the assembly file version is not the same everytime.
Without modifying the web application to expose the version number through some URL-based retrieval (a simple page GET being the easy, obvious one), you're going to need to find a way to figure out where the DLL for the web application is from the URL.
If you can know the DLL's location, either by some convention (e.g. /appX/ is always at D:\Sites\appX\bin\appX.dll) or some configuration (you manually enter where each URL base's DLL is in a database), then you can retrieve that DLL's assembly version using the following code:
Assembly assembly = Assembly.LoadFrom("MyAssembly.dll");
Version ver = assembly.GetName().Version;
Code taken from this question.
Edit:
I've had a little look around, and there are some APIs to inspect the IIS configuration, so this is certainly a route to explore if you're trying to get from the URL to the assembly location. This question has an example of getting the physical path from the application/site name, for example. Microsoft.Web.Administration is the assembly to explore.
The ASP.NET engine streams nothing but HTML, javascript, etc.. to the client. There is nothing left of the assembly that gets passed in the response that can show what version of .net/asp.net that the application is running unless the developer on the server side adds it.
That said, you can gather some information from a utility at http://uptime.netcraft.com/up/graph that will give you some server information. Not down to the assembly version, but this is as close as I believe you are going to get.
You may implement custom HttpModule, put it to the bin folder of each application that you wish to monitor and append register this module in web.config files. In this module for example you should handle request, retrieve all required information and put it to response cookie.
I have a local website which I run through Visual Studio 2008's internal development web server (through the run / compile button).
I have an external library which is referenced on a page of that website and resides inside the web site's "bin" folder.
I've recently changed a class' property name inside that library (renaming it, from "ValidFrom" to "VisibleFrom"), recompiled its dll and have overwritten the original dll inside the bin folder.
This class is mapped with FluentNHibernate, I've also changed the mappings and recompiled / redeployed the library.
When I try to run the site and navigate to the page where the library is used, I'm getting a MethodNotFound exception for the method get_ValidFrom, related to FluentNHibernate's configuration call. This should be get_VisibleFrom now!
Now I've reconfigured my NHibernate SessionProvider so that it generates a new Configuration for NHibernate on each call, and does not retrieve it from the Http Session entity like it did before, because I figured there might lie the problem.
I'm still getting the exception however. I've then deleted the Temporary ASP.NET folder's content... but I'm still getting the error.
Where is the generated schema for NHibernate stored, when using FluentNHibernate?
Anyone knows where else this could somehow be cached?
Thanks
FNH does not cache the schema, it is generated on-the-fly when you make a call to Fluently.Configure() and the schema is passed directly into an NHibernate Configuration object which is used to build an ISessionFactory.
Try clearing out all compiled objects/libraries/executables, removing the reference to your library from all projects that use it, add it back in, and then re-compile everything. Also check your all your code for "magic strings" that may be referencing this property or causing it to be referenced by the old name.
If that doesn't work, it might be helpful to see a stack trace to get an idea of what is being called from where.
According to the MSDN documentation (http://msdn.microsoft.com/en-us/library/ms172987.aspx), the My.Application.Log property is used to write log entries for client applications, and the My.Log property is used to write log entries for web applications. However, I have a web application with a bunch of My.Application.Log calls in the .aspx.vb files. These compile correctly, but if I change them to My.Log, I get compile errors. Does anyone know why this would be?
I've got this problem too.
This seems to happen when you write to log from a library (dll)
which is a sort of windows application.
Do you use a Dll?
I've a simple, if not primitive, C++/CLI .NET 2.0 class library. It is used in order to wrap some C++ legacy code for the Web Service. The following facts appear to be true:
Primitive C# test program calls class library and it works.
If class library does not refer to any modules of our code base, it works as well as part of the web service. That is, I load the web service and invoke the methods and receive proper response.
The same moment I replace the copied and pasted code by the calls from our code base libraries, the Web Service stops to load. I get System.IO.FileNotFoundException message.
The problem: I cannot find any place where the file name that couldn't be found is written.
I googled it and gave some permissions to some ASP.NET user on my computer. I copied all the DLLs of our libraries into the same directory where web service is installed. I searched in IIS logs, event logs, etc - no where could I find the name of the module that prevents the web service from coming up.
Any help on the matter would be greatly appreciated.
Boris
Make sure all the dependent DLLs are in the path (Path meaning not the directory where your assembly is, because ASP.net copies your assembly away into a temporary folder, but rather a directory that's included in the System path environment variable).
What calls are you replacing? Could it be the original code gracefully handles missing files (which may not even be important) and yours does not?
Add same rights to the iusr-account that you did to the asp.net-account.