Split unity configuration file

For maintenance reasons, it is better to split a 'BIG' unity configuration into multiple files. One such way to do this is

1. Let us imagine we need to split into two files, so your root config file will look like below

<configSections>
    <section name="unitySection1" 

          type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, 

          Microsoft.Practices.Unity.Configuration"/>

    <section name="unitySection2" 

          type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, 

          Microsoft.Practices.Unity.Configuration"/>
</configSections>

<unitySection1 configSource="unity1.config" />

<unitySection2 configSource="unity2.config" /> 

2. And your individual unity files will look like below(see the highlighted section that 'unity' tag becomes 'unitySection1')

   <unitySection1>

       <container /> 

   </unitySection1>
 

   <unitySection2> 

       <container />

   </unitySection2>

3. Load the separate configuration files into Container


    UnityContainer.LoadConfiguration - will adds up the container details, so we just need to call it twice

 private void Initialise()
 {

   string[] unitySections = new string[] {"unitySection1", "unitySection2"};

   IUnityContainer container = new UnityContainer(); 

   foreach(var section in unitySections)

   {

      var configuration = ConfigurationManager.OpenExeConfiguration(path);
 

      var unitySection = (UnityConfigurationSection)configuration.

                          GetSection(section);
        
      container.LoadConfiguration(unitySection);

    }
 }

reference link