Unity section in .config file using Protected Configuration Provider

Question

In my app config I'm using RSA Protected Configuration Provider, everything works fine when using it with connectionStrings section but NOT with unity section in app.config. Whenever I try to make this call:

container.LoadConfiguration("MyManager");

I get;

Unrecognized attribute 'configProtectionProvider'. Note that attribute names are case-sensitive. 

App.Config after encryption:

<unity configProtectionProvider="RsaProtectedConfigProvider">
    <EncryptedData Type="http://www.w3.org/2001/04/xmlenc#Element"
...

what gives?

Answer 1

Figured it out. I was missing this after the save:

                config.Save(ConfigurationSaveMode.Full);
                ConfigurationManager.RefreshSection(sectionName);