Is it possible to create a location element in web.config programmatically (using ConfigurationLocation for example)

Question

I can access and modify the contents of a <location> tag in web.config, starting from:

Configuration config = WebConfigurationManager.OpenWebConfiguration(virtualFolderPath); 
ConfigurationLocationCollection locations = config.Locations;

then for each location:

Configuration thisConfig = location.OpenConfiguration();

However, I cannot see any way to add a new <location>, is that possible?

Answer 1

The web.config is a legal XML document. So, other considerations aside, there is nothing to stop you from loading it and using either XMLDocumment / XPath or XDocument methods to modify and save the file.

Answer 2

A ConfigurationLocationCollection is derived from a System.Collections. ReadOnlyCollectionBase which is read-only. So using the configuration API's as they are just now this is not possible.