The Container property returns the value specified in the Container parameter of PrincipalContext class. This allows developers to perform search or actions against the specific container and this should be referenced using LDAP, I will be showing them in my future blog posts.
There are different Extended methods and Methods provided for Container Property, these are similar to the ConnectedServer property which I have listed in my earlier blog post. Most common Extended method usage are
a) GetHashcode = If developers tend to place the object in Hash Table
b) Length = Gets the length of the Container object
c) ToString() = To populate the Container string defined in the PrincipalContext class