Reading dll.config (not app.config!) from a plugin module

Question

I am writing a C# .NET 2.0 .dll that is a plug in to a Larger application. The visual studio project for my module has a app.config file which is copied to a MyProj.dll.con

Answer 1

You will need to load the x.dll.config (with the Configuration API) yourself. All the automatic file handling (including the .Settings) is all about machine.config/y.exe.config/user-settings.

To open a named config file:

• Reference System.Configuration.dll assembly.
• Using System.Configuration

• Create code like:

  Configuration GetDllConfiguration(Assembly targetAsm) {
    var configFile = targetAsm.Location + ".config";
    var map = new ExeConfigurationFileMap {
      ExeConfigFilename = configFile
    };
    return ConfigurationManager.OpenMappedExeConfiguration(map, ConfigurationUserLevel.None);
  }
  

Answer 2

1- open app.config file in visual studio

2- in the "configuration" tag add your configurations in tag "appSettings" as bellow:

<configuration>
    <appSettings>
        <add key="UserName" value="aaa"/>
        <add key="Password" value="111"/>
    </appSettings>
</configuration>

3- in your code c#

var appConfig = ConfigurationManager.OpenExeConfiguration(Assembly.GetExecutingAssembly().Location);
string userName = appConfig.AppSettings.Settings["UserName"].Value;
string password = appConfig.AppSettings.Settings["Password"].Value;

and do not forgot to add this 2 usings for "ConfigurationManager" and for "Assembly"

• using System.Configuration;
• using System.Reflection;

if the System.Configuration does not show, you must add the reference "System.Configuration" in the References

4- you can update the configurations for the dll as bellow:

• open the file "MyProj.dll.config"
• then update your configurations