ASP.NET Developer's JumpStart

The System.Text Namespace

Just about every business application you create will eventually require you to work with strings in some manner. String manipulation is a very common activity in most applications, but creating, adding to, and deleting from strings are expensive in terms of processor time and memory.

If you create a variable of type String, you are actually creating a String object; all base data types in .NET inherit from the base Object class, so all data types are actually objects. The contents of a String object cannot be changed once you've placed text into the string—in order to change its contents, you must place the return value of a method call into a new String object. For example, the String class provides a Remove method, ...