System.String provides a number of methods you would expect from such a utility class, including methods that return the length of the character data, find substrings within the current string, and convert to and from uppercase/lowercase. Table 3-5 lists some (but by no means all) of the interesting members.
Table 3.5. Select Members of System.String
String Member
Meaning in Life
Length
This property returns the length of the current string.
Compare()
This static method compares two strings.
Contains()
This method determines whether a string contains a specific substring.
Equals()
This method tests whether two string objects contain identical character data.
Format()
This static method formats a string using other primitives (e.g., numerical data, other strings) and the {0} notation examined earlier in this chapter.
Insert()
This method inserts a string within a given string.
PadLeft() PadRight()
These methods are used to pad a string with some characters.
Remove() Replace()
Use these methods to receive a copy of a string with modifications (characters removed or replaced).
Split()
This method returns a String array containing the substrings in this instance that are delimited by elements of a specified char array or string array.
Trim()
This method removes all occurrences of a set of specified characters from the beginning and end of the current string.
ToUpper() ToLower()
These methods create a copy of the current string in uppercase or lowercase format, respectively.
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