One of the built in reference types within the .NET Framework you will commonly use is the System.String type. System.String has a set of members for manipulating text. For example here is a simple quick method for finding and replacing text:
Value types are variables which contain their data directly as opposed to reference types which store only a reference to the data stored elsewhere. Instances of value types are stored in an area of the memory called the “stack” where the runtime can manipulate them quickly with minimal overhead.
