Try setting the Build Action property of the source DLLs to None. It solved the issue for us.

I was running into this problem myself.

This is what worked for me:

I had added an assembly as a reference and as an &quot;Existing Resource.&quot; Deleting the file from the Solution Explorer, closing, then reopening the project worked.

While looking for an SFTP client in C# SSH File Transfer Protocol (SFTP), I&#39;ve come across these two suitable projects - [one][1] and [two][2].

While trying to understand the basics, I came across this confusing [Wikipedia article][3]. What is difference between SFTP and FTP over SSH? No library seems to give support for &quot;FTP over SSH&quot;, if it is different.


  [1]: http://sourceforge.net/projects/sharpssh
  [2]: http://granados.sourceforge.net/
  [3]: http://en.wikipedia.org/wiki/FTP_over_SSH#FTP_over_SSH_.28not_SFTP.29

Differences between SFTP and &quot;FTP over SSH&quot;

I am setting up a LAMP server and would like to set Apache&#39;s umask setting to 002 so that all Apache-created files have the group write permission bit set  (so members of the same group can overwrite the files).

Does anyone know how to do this?  I know that on Ubuntu, you can use the /etc/apache2/envvars file to configure the umask, but the server is running CentOS.

**Update**
This question is related to another I asked a while ago ([https://stackoverflow.com/questions/174715/linux-users-and-groups-for-a-lamp-server][1]).  If prefered, please update this other question with what the best set-up is to use for having a developer user on a server that can edit files created by the apache user.


  [1]: https://stackoverflow.com/questions/174715/linux-users-and-groups-for-a-lamp-server

Setting the umask of the Apache user

I&#39;ve added a reference to the log4net assembly dll to my project.

When I build I get a warning saying:

&gt; Warning Assembly &#39;Lib\log4net.dll&#39; is
&gt; incorrectly specified as a file.

I look up the [help for this error on MSDN][1], and it says:

&gt; This warning is generated during
&gt; application manifest generation when
&gt; the build process detects that *a file
&gt; reference is actually a (managed or
&gt; native) assembly*.

This is exactly what I&#39;m doing; the file reference *is* an assembly. What am I being told here? 

How do I add a reference to an assembly dll, while not adding a reference to an assembly dll?

  [1]: http://msdn.microsoft.com/en-us/library/ms228157(VS.80).aspx

VS2005: Assembly &#39;&lt;assembly&gt;&#39; is incorrectly specified as a file.

I've added a reference to the log4net assembly dll to my project.
When I build I get a warning saying:
> Warning Assembly 'Lib\log4net.dll' is
> incorrectly specified as a file.
I look up the <a href="http://msdn.microsoft.com/en-us/library/ms228157(VS.80).aspx" target="_blank" rel="noopener noreferrer">help for this error on MSDN</a>, and it says:
> This warning is generated during
> application manifest generation when
> the build process detects that a file
> reference is actually a (managed or
> native) assembly.
This is exactly what I'm doing; the file reference is an assembly. What am I being told here?
How do I add a reference to an assembly dll, while not adding a reference to an assembly dll?

I want to be able to edit one method while looking at another method in the same file, as reference.
Can this be done?

Visual Studio: How can I see the same file in two separate tab groups?

This assembly is in the GAC: Microsoft.SqlServer.Management.RegisteredServers.dll

How can I add a reference to this assembly in Visual Studio?

I can view the file in c:\windows\assembly\

How can I reference a dll in the GAC from Visual Studio?

Is there any sort of plug-in or tool available for Visual Studio 2008 to alphabetize methods?  Ideally I&#39;d like a tool that will alphabetize a selection, or specified type (i.e. only methods, not member variables), either automatically or on-demand.

Alphabetizing methods in Visual Studio

In Visual Studio 2008, I can see all my project files in my Solution Explorer, and these files exist in an actual diectory.

However, if I add a file to that directory (let&#39;s say, an test.sqlite file in the App_Data folder, or say, images created by some other program), then these files do NOT appear in my Solution explorer, even if I click the refresh button.

How can I make files created by other applications appear in my Solution Explorer?

(so far, I have to create them somewhere else, then copy and paste them into the solution explorer itself, but there must be an easier way).

---
### Edit:
Is there an advantage to this &quot;fake solution view&quot;, i.e. I could have a file &quot;test.sqlite&quot; in my App_Data directory but in my solution, it could be appearing in my root directory. Coming from an Eclipse WYSIWYG Solution Explorer mindset, I don&#39;t see the advantage of having this extra virtual meta-information about the actual files in your directory. Is there a way you get an advantage out of this metaphor?

Why doesn&#39;t Visual Studio refresh the folders when I click the Solution Explorer refresh button?

I do not see dumpbin.exe on my system. I have Visual Studio 2005 on my system. When I type dumpbin on the command line, it says unrecognizable command.

Does it come with Visual Studio by default, or do I have to explicitly add this tool?



Cannot find Dumpbin.exe

I need to access the assembly of my project in C# .NET 2.0.

I can see the GUID in the &#39;Assembly Information&#39; dialog in under project properties, and at the moment I have just copied it to a const in the code. The GUID will never change, so this is not that bad of a solution, but it would be nice to access it directly. Is there a way to do this?


How do I programmatically get the GUID of an application in .NET 2.0

I am looking for a way to do daily deployments and keep the database scripts in line with releases. 

Currently, we have a fairly decent way of deploying our source, we have unit code coverage, continuous integration and rollback procedures.  

The problem is keeping the database scripts in line with a release. Everyone seems to try the script out on the test database then run them on live, when the ORM mappings are updated (that is, the changes goes live) then it picks up the new column. 

The first problem is that none of the scripts HAVE to be written anywhere, generally everyone &quot;attempts&quot; to put them into a Subversion folder but some of the lazier people just run the script on live and most of the time no one knows who has done what to the database.

The second issue is that we have 4 test databases and they are ALWAYS out of line and the only way to truly line them back up is to do a restore from the live database. 

I am a big believer that a process like this needs to be simple, straightforward and easy to use in order to help a developer, not hinder them. 

What I am looking for are techniques/ideas that make it EASY for the developer to want to record their database scripts so they can be ran as part of a release procedure. **A process that the developer would want to follow**.

Any stories, use cases or even a link would helpful.


Database Deployment Strategies (SQL Server)

I am working on machine with XP Dutch version installed on it. Visual studio 2005 is installed in English. I&#39;m having the annoying problem while debugging that all .NET Framework exception message appear in Dutch, which make them really worthless. I tried to change this to English by setting the regional settings in the control panel to US English and then reinstalling the .NET Framework 2.0 (English version) but apparently this did not solve the problem. Does anyone have an idea?

---

I think my question was missunderstood, I don&#39;t want to change the current culture of the thread. The problem i&#39;m having is when you are debugging and stepping through the code when suddenly one of those exception windows appears with the exception-message in it.
This exception message appears in Dutch and I would like it to appear English. I hope this clarifies the question.

How to change Visual Studio exception message language to English while debugging

It is not documented on the web site and people seem to be having problems setting up the framework. Can someone please show a step-by-step introduction for a sample project setup?

How to set up Google C++ Testing Framework (gtest) with Visual Studio 2005

I have some confusion related to the .NET platform build options in Visual Studio 2008.

What is the &quot;Any CPU&quot; compilation target, and what sort of files does it generate? I examined the output executable of this &quot;Any CPU&quot; build and found that they are the x86 executables (who would not see that coming!). So, is there any difference between targeting executable to x86 vs. &quot;Any CPU&quot;?

Another thing that I noticed, is that managed C++ projects do not have this platform as an option. Why is that? Does that mean that my suspicion about &quot;Any CPU&quot; executables being plain 32-bit ones is right?



What does the Visual Studio &quot;Any CPU&quot; target mean?

I recently had cause to work with some Visual Studio C++ projects with the usual Debug and Release configurations, but also &#39;Release All&#39; and &#39;Debug All&#39;, which I had never seen before.

It turns out the author of the projects has a single ALL.cpp which #includes all other .cpp files. The *All configurations just build this one ALL.cpp file. It is of course excluded from the regular configurations, and regular configurations don&#39;t build ALL.cpp

I just wondered if this was a common practice? What benefits does it bring? (My first reaction was that it smelled bad.)

What kinds of pitfalls are you likely to encounter with this? One I can think of is if you have anonymous namespaces in your .cpps, they&#39;re no longer &#39;private&#39; to that cpp but now visible in other cpps as well?

All the projects build DLLs, so having data in anonymous namespaces wouldn&#39;t be a good idea, right? But functions would be OK?


#include all .cpp files into a single compilation unit?

I&#39;m working with a small (4 person) development team on a C# project.  I&#39;ve proposed setting up a build machine which will do nightly builds and tests of the project, because I understand that this is a Good Thing.  Trouble is, we don&#39;t have a whole lot of budget here, so I have to justify the expense to the powers that be.  So I want to know:

&lt;ol&gt;
&lt;li&gt; What kind of tools/licenses will I need?  Right now, we use Visual Studio and Smart Assembly to build, and Perforce for source control.  Will I need something else, or is there an equivalent of a cron job for running automated scripts?
&lt;li&gt; What, exactly, will this get me, other than an indication of a broken build?  Should I set up test projects in this solution (sln file) that will be run by these scripts, so I can have particular functions tested?  We have, at the moment, two such tests, because we haven&#39;t had the time (or frankly, the experience) to make good unit tests.
&lt;li&gt; What kind of hardware will I need for this?
&lt;li&gt; Once a build has been finished and tested, is it a common practice to put that build up on an ftp site or have some other way for internal access?  The idea is that this machine makes _the_ build, and we all go to it, but can make debug builds if we have to.  
&lt;li&gt; How often should we make this kind of build?
&lt;li&gt; How is space managed?  If we make nightly builds, should we keep around all the old builds, or start to ditch them after about a week or so?
&lt;li&gt; Is there anything else I&#39;m not seeing here?
&lt;ol&gt;

I realize that this is a very large topic, and I&#39;m just starting out.  I couldn&#39;t find a duplicate of this question here, and if there&#39;s a book out there I should just get, please let me know.

EDIT:  I finally got it to work!  Hudson is completely fantastic, and FxCop is showing that some features we thought were implemented were actually incomplete.  We also had to change the installer type from Old-And-Busted vdproj to New Hotness WiX.

Basically, for those who are paying attention, if you can run your build from the command line, then you can put it into hudson.  Making the build run from the command line via MSBuild is a useful exercise in itself, because it forces your tools to be current.

How and why do I set up a C# build machine?

Is there a Maven alternative or port for the .NET world? 

I would love to use a good dependency management system that the Java world has, but I don&#39;t find anything comparable for .NET projects...


Is there a Maven alternative or port for the .NET world?

What are current best-practices for systematic build numbering and version number management in Java projects?  Specifically:

- How to manage build numbers systematically in a distributed development environment

- How to maintain version numbers in source / available to the runtime application

- How to properly integrate with source repository

- How to more automatically manage version numbers vs. repository tags

- How to integrate with continuous build infrastructure

There are quite a number of tools available, and ant (the build system we&#39;re using) has a task that will maintain a build number, but it&#39;s not clear how to manage this with multiple, concurrent developers using CVS, svn, or similar.

[EDIT]

Several good and helpful partial or specific answers have appeared below, so I&#39;ll summarize a few of them.  It sounds to me like there is not really a strong &quot;best practice&quot; on this, rather a collection of overlapping ideas.  Below, find my summaries and some resulting questions that folks might try to answer as follow-ups.  [New to stackoverflow... please provide comments if I&#39;m doing this wrong.]

- If you are using SVN, versioning of a specific checkout comes along for the ride.  Build numbering can exploit this to create a unique build number that identifies the specific checkout/revision.  [CVS, which we are using for legacy reasons, doesn&#39;t provide quite this level of insight... manual intervention with tags gets you part way there.]

- If you are using maven as your build system, there is support for producing a version number from the SCM, as well as a release module for automatically producing releases.  [We can&#39;t use maven, for a variety of reasons, but this helps those who can.  [Thanks to &lt;a href=&quot;https://stackoverflow.com/users/83674/marcelo-morales&quot;&gt;marcelo-morales&lt;/a&gt;]]

- If you are using &lt;a href=&quot;http://ant.apache.org&quot;&gt;ant&lt;/a&gt; as your build system, the following task description can help produce a Java .properties file capturing build information, which can then be folded into your build in a number of ways.  [We expanded on this idea to include hudson-derived information, thanks &lt;a href=&quot;https://stackoverflow.com/users/79194/marty-lamb&quot;&gt;marty-lamb&lt;/a&gt;].

- Ant and maven (and hudson and cruise control) provide easy means for getting build numbers into a .properties file, or into a .txt/.html file.  Is this &quot;safe&quot; enough to keep it from being tampered with intentionally or accidentally?  Is it better to compile it into a &quot;versioning&quot; class at build time?

- Assertion: Build numbering should be defined/enacted in a continuous integration system like &lt;a href=&quot;http://hudson-ci.org/&quot;&gt;hudson&lt;/a&gt;.  [Thanks to &lt;a href=&quot;https://stackoverflow.com/users/83674/marcelo-morales&quot;&gt;marcelo-morales&lt;/a&gt;]  We have taken this suggestion, but it does crack open the release engineering question:  How does a release happen?  Are there multiple buildnumbers in a release?  Is there a meaningful relationship between buildnumbers from differing releases?

- Question: What is the objective behind a build number?  Is it used for QA?  How?  Is it used primarily by developers to disambiguate between multiple builds during development, or more for QA to determine what build an end-user got?  If the goal is reproducibility, in theory this is what a release version number should provide -- why doesn&#39;t it?  (please answer this as a part of your answers below, it will help illuminate the choices you have made/suggested...)

- Question: Is there a place for build numbers in manual builds?  Is this so problematic that EVERYONE should be using a CI solution?

- Question: Should build numbers be checked in to the SCM?  If the goal is reliably and unambiguously identifying a particular build, how to cope with a variety of continuous or manual build systems that may crash/restart/etc... 

- Question: Should a build number be short and sweet (i.e., monotonically increasing integer) so that it&#39;s easy to stick into file names for archival, easy to refer to in communication, etc... or should it be long and full of usernames, datestamps, machine names, etc?

- Question: Please provide details about how the assignment of build numbers fits into your larger automated release process.  Yes, maven lovers, we know this is done and done, but not all of us have drunk the kool-aid quite yet...

I&#39;d really like to flesh this out into a complete answer, at least for the concrete example of our cvs/ant/hudson setup, so someone could build a complete strategy based on this question.  I&#39;ll mark as &quot;The Answer&quot; anyone who can give a soup-to-nuts description for this particular case (including cvs tagging scheme, relevant CI config items, and release procedure that folds the build number into the release such that it&#39;s programmatically accessible.)  If you want to ask/answer for another particular configuration (say, svn/maven/cruise control) I&#39;ll link to the question from here. --JA

[EDIT 23 Oct 09]
I accepted the top-voted answer because I think it&#39;s a reasonable solution, while several of the other answers also include good ideas.  If someone wants to take a crack at synthesizing some of these with &lt;a href=&quot;https://stackoverflow.com/users/79194/marty-lamb&quot;&gt;marty-lamb&lt;/a&gt;&#39;s, I&#39;ll consider accepting a different one.  The only concern I have with marty-lamb&#39;s is that it doesn&#39;t produce a reliably serialized build number -- it depends on a local clock at the builder&#39;s system to provide unambiguous build numbers, which isn&#39;t great.

[Edit Jul 10]

We now include a class like the below.  This allows the version numbers to be compiled into the final executable.  Different forms of the version info are emitted in logging data, long-term archived output products, and used to trace our (sometimes years-later) analysis of output products to a specific build.

    public final class AppVersion
    {
       // SVN should fill this out with the latest tag when it&#39;s checked out.

       private static final String APP_SVNURL_RAW = 
         &quot;$HeadURL: svn+ssh://user@host/svnroot/app/trunk/src/AppVersion.java $&quot;;
       private static final String APP_SVN_REVISION_RAW = &quot;$Revision: 325 $&quot;;  
  
       private static final Pattern SVNBRANCH_PAT = 
         Pattern.compile(&quot;(branches|trunk|releases)\\/([\\w\\.\\-]+)\\/.*&quot;);
       private static final String APP_SVNTAIL = 
         APP_SVNURL_RAW.replaceFirst(&quot;.*\\/svnroot\\/app\\/&quot;, &quot;&quot;);
  
      private static final String APP_BRANCHTAG;
      private static final String APP_BRANCHTAG_NAME;
      private static final String APP_SVNREVISION = 
        APP_SVN_REVISION_RAW.replaceAll(&quot;\\$Revision:\\s*&quot;,&quot;&quot;).replaceAll(&quot;\\s*\\$&quot;, &quot;&quot;);
  
  
      static {
        Matcher m = SVNBRANCH_PAT.matcher(APP_SVNTAIL);
        if (!m.matches()) {
          APP_BRANCHTAG = &quot;[Broken SVN Info]&quot;;
          APP_BRANCHTAG_NAME = &quot;[Broken SVN Info]&quot;;
        } else {
          APP_BRANCHTAG = m.group(1);
          if (APP_BRANCHTAG.equals(&quot;trunk&quot;)) {
            // this isn&#39;t necessary in this SO example, but it 
            // is since we don&#39;t call it trunk in the real case
            APP_BRANCHTAG_NAME = &quot;trunk&quot;;
          } else {
            APP_BRANCHTAG_NAME = m.group(2);
          }
        }
      }

      public static String tagOrBranchName()
      { return APP_BRANCHTAG_NAME; }
  
      /** Answers a formatter String descriptor for the app version.
       * @return version string */
      public static String longStringVersion()
      { return &quot;app &quot;+tagOrBranchName()+&quot; (&quot;+
        tagOrBranchName()+&quot;, svn revision=&quot;+svnRevision()+&quot;)&quot;; }
  
      public static String shortStringVersion()
      { return tagOrBranchName(); }
  
      public static String svnVersion()
      { return APP_SVNURL_RAW; }

      public static String svnRevision()
      { return APP_SVNREVISION; }
  
      public static String svnBranchId()
      { return APP_BRANCHTAG + &quot;/&quot; + APP_BRANCHTAG_NAME; } 

      public static final String banner()
      {
        StringBuilder sb = new StringBuilder();
        sb.append(&quot;\n----------------------------------------------------------------&quot;);
        sb.append(&quot;\nApplication -- &quot;);
        sb.append(longStringVersion());
        sb.append(&quot;\n----------------------------------------------------------------\n&quot;);
        return sb.toString();
      }
    }


Leave comments if this deserves to become a wiki discussion.

Build and Version Numbering for Java Projects (ant, cvs, hudson)

In .Net, I would like to enumerate all loaded assemblies over all AppDomains. Doing it for my program&#39;s AppDomain is easy enough `AppDomain.CurrentDomain.GetAssemblies()`. Do I need to somehow access every AppDomain? Or is there already a tool that does this?

How do I list all loaded assemblies?

Is it possible to instantiate an object at runtime if I only have the DLL name and the class name, without adding a reference to the assembly in the project? The class implements a interface, so once I instantiate the class, I will then cast it to the interface.

Assembly name:
&gt; library.dll 

Type name: 
&gt;Company.Project.Classname

----
**EDIT:** I dont have the absolute path of the DLL, so `Assembly.LoadFile` won&#39;t work. The DLL might be in the application root, system32, or even loaded in the GAC.

Can I load a .NET assembly at runtime and instantiate a type knowing only the name?

How do I find out the fully qualified name of my assembly such as:

    MyNamespace.MyAssembly, version=1.0.3300.0, 
    Culture=neutral, PublicKeyToken=b77a5c561934e089

I&#39;ve managed to get my PublicKeyToken using the `sn.exe` in the SDK, but I&#39;ld like to easily get the full qualified name.



How do I find the fully qualified name of an assembly?

I want to load to a new `AppDomain` some assembly which has a complex references tree (MyDll.dll -&gt; Microsoft.Office.Interop.Excel.dll -&gt; Microsoft.Vbe.Interop.dll -&gt; Office.dll -&gt; stdole.dll)

As far as I understood, when an assembly is being loaded to `AppDomain`, its references would not be loaded automatically, and I have to load them manually.
So when I do:

    string dir = @&quot;SomePath&quot;; // different from AppDomain.CurrentDomain.BaseDirectory
    string path = System.IO.Path.Combine(dir, &quot;MyDll.dll&quot;);
    
    AppDomainSetup setup = AppDomain.CurrentDomain.SetupInformation;
    setup.ApplicationBase = dir;
    AppDomain domain = AppDomain.CreateDomain(&quot;SomeAppDomain&quot;, null, setup);

    domain.Load(AssemblyName.GetAssemblyName(path));
and got `FileNotFoundException`: 

&gt; Could not load file or assembly &#39;MyDll, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null&#39; or one of its dependencies. The system cannot find the file specified.

I think the key part is **one of its dependencies**.

Ok, I do next before `domain.Load(AssemblyName.GetAssemblyName(path));`

    foreach (AssemblyName refAsmName in Assembly.ReflectionOnlyLoadFrom(path).GetReferencedAssemblies())
    {
        domain.Load(refAsmName);
    }

But got `FileNotFoundException` again, on another (referenced) assembly.

How to load all references recursively?

Do I have to create references tree before loading root assembly? How to get an assembly&#39;s references without loading it?

How to Load an Assembly to AppDomain with all references recursively?

We are using log4net and want to specify it&#39;s configuration in an external config file (as we have done with other sections). To do this we have changed the log4net section in the App.config to:

&lt;!-- language: xml --&gt;

    ...
    &lt;section name=&quot;log4net&quot; 
         type=&quot;log4net.Config.Log4NetConfigurationSectionHandler, log4net&quot;/&gt;
    ...
    &lt;log4net configSource=&quot;Log.config&quot; /&gt;
    ...

And in the Log.Config file (same directory as the App.config) we have:

&lt;!-- language: xml --&gt;

    &lt;log4net&gt;
      &lt;appender name=&quot;General&quot; type=&quot;log4net.Appender.FileAppender&quot;&gt;
        &lt;file value=&quot;myapp.log&quot; /&gt;
        &lt;layout type=&quot;log4net.Layout.SimpleLayout&quot; /&gt;
      &lt;/appender&gt;
      &lt;root&gt;
        &lt;appender-ref ref=&quot;General&quot; /&gt;
      &lt;/root&gt;
    &lt;/log4net&gt;

However, when we run the app, no log file is created (and no logging done). There are no error messages output to the console.

If we move the contents of the Log.config file back into the App.config (replacing the first code line above), it works as expected. Any idea why it is not working in an external file?

Log4Net config in external file does not work

I&#39;m using log4net to log write log message to a rolling log file. 

Now I would also redirect all trace messages from &lt;code&gt;System.Diagnostics.Trace&lt;/code&gt; to that log file. How can I configure that? I tried to find anything about that in the log4net documentation, but without success. Is it possible at all?

The reason I want to do that is because I am interested in the Trace messages of a 3rd party library.

&lt;!-- language: xml --&gt;

    &lt;log4net&gt;
        &lt;appender name=&quot;R1&quot; type=&quot;log4net.Appender.RollingFileAppender&quot;&gt;
          &lt;file value=&quot;C:\Logs\MyService.log&quot; /&gt;
          &lt;appendToFile value=&quot;true&quot; /&gt;
          &lt;rollingStyle value=&quot;Date&quot; /&gt;
          &lt;maxSizeRollBackups value=&quot;10&quot; /&gt;
          &lt;datePattern value=&quot;yyyyMMdd&quot; /&gt;
          &lt;layout type=&quot;log4net.Layout.PatternLayout&quot;&gt;
            &lt;conversionPattern value=&quot;%date [%thread] %-5level %logger [%property{NDC}] - %message%newline&quot; /&gt;
          &lt;/layout&gt;
        &lt;/appender&gt;
    &lt;/log4net&gt;

How to log Trace messages with log4net?

I am trying to find somebody smarter than me to validate some syntax I wrote up.  The idea is to configure the filename of my RollingFileAppender to the name of the assembly in order to make it more re-usable for my projects.  

I&#39;ve seen [this previous SO article][1] but it wasn&#39;t exactly able to answer my question...

I&#39;ve had a dickens of a time trying to understand the inner components of Log4net and this is what I came up with (residing in the Global.asax file - Application_Start method):

    // Bind to the root hierarchy of log4net
    log4net.Repository.Hierarchy.Hierarchy root = 
      log4net.LogManager.GetRepository() 
        as log4net.Repository.Hierarchy.Hierarchy;
    
    if (root != null)
    {
      // Bind to the RollingFileAppender
      log4net.Appender.RollingFileAppender rfa = 
        (log4net.Appender.RollingFileAppender)root.Root.GetAppender(&quot;RollingLogFileAppender&quot;);
    
      if (rfa != null)
      {
        // Set the file name based on the assembly name
        string filePath = 
          string.Format(&quot;~/App_Data/{0}.log&quot;, GetType().Assembly.GetName().Name);
    
        // Assign the value to the appender
        rfa.File = Server.MapPath(filePath);
    
        // Apply changes to the appender
        rfa.ActivateOptions();
      }
    }

Can anyone tell me, &#39;this is hideous&#39;, or &#39;this should work fine&#39;?  Also, if I set the file dynamically can I still expect the log4net behavior to rotate the files based on the log4net.config file settings?

Much appreciated!


  [1]: https://stackoverflow.com/questions/308436/log4net-programmatcially-specify-multiple-loggers-with-multiple-file-appenders

Best way to dynamically set an appender file path

In [this thread][1] many people have indicated that they use log4net. I am a fan of TraceSources and would like to know why log4net is used. 

Here is why I like trace sources:

 - Pluggable listeners - XML, TextFile, Console, EventLog, roll your own
 - Customisable trace switches (error, warning, info, verbose, start, end, custom)
 - Customisable configuration 
 - The Logging Application Block is just a big set of TraceListeners
 - Correlation of activities/scopes (e.g., associate all logs within an ASP.NET request with a given customer
 - The Service Trace Viewer allows you to visualize events against these activities individually
 - All of it is configurable in app.config/web.config.

Since the .NET framework internally uses TraceSources, it also gives me a consistent way of configuring tracing - with log4net, I have to configure log4net as well as TraceSources. 

What does log4net give me that TraceSources don&#39;t (or that couldn&#39;t be done by writing a couple of custom TraceListeners)?


  [1]: https://stackoverflow.com/questions/576185/logging-best-practices

log4net versus TraceSource

I want my logfile to look something like this:
2009-02-13.log

but the problem is that I can&#39;t seem to find any way to add the .log extension.

I&#39;ve tried a lot of things but nothing helps.
This is what I have this far:

&lt;!-- language: lang-xml --&gt;

    &lt;appender name=&quot;RollingFileAppender&quot; type=&quot;log4net.Appender.RollingFileAppender&quot;&gt;
    	&lt;file value=&quot;Logs/Log4Net/.log&quot;/&gt;
        &lt;appendToFile value=&quot;true&quot;/&gt;
        &lt;rollingStyle value=&quot;Date&quot;/&gt;
    	&lt;datePattern value=&quot;yyyy-MM-dd&quot; /&gt;
        &lt;layout type=&quot;log4net.Layout.PatternLayout&quot;&gt;
          &lt;conversionPattern value=&quot;%date [%thread] %-5level %logger [%property{NDC}] - %message%newline&quot;/&gt;
        &lt;/layout&gt;
    &lt;/appender&gt;


Content Type	Original Author	Original Content on Stackoverflow
Question	Ian Boyd	View Question on Stackoverflow
Solution 1 - Visual Studio	Muhammad Ousama Ghazali	View Answer on Stackoverflow
Solution 2 - Visual Studio	jadelane	View Answer on Stackoverflow

VS2005: Assembly '<assembly>' is incorrectly specified as a file.

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