How to load a separate Application Settings file dynamically and merge with current settings?

Question

There are questions pertaining to reading settings from a separate config file and others similar to it, but my question is specific to application property settings (i.e. <

Answer 1

The solution suggested by Pat:

// Get the whole XML inside the settings node
var settings = import.XPathSelectElements("//" + appSettingsXmlName);

returns null. I changed it to

var settings = import.Element("configuration").Element("userSettings").Element(appSettingsXmlName);

config.GetSectionGroup("userSettings")
      .Sections[appSettingsXmlName]
      .SectionInformation
      .SetRawXml(settings.ToString());

And it works perfectly.