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C# in a Nutshell by Peter Drayton, Ted Neward, Ben Albahari

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Name

Char

Synopsis

This simple value type represents a 16-bit Unicode character (from hexadecimal 0x0000 to 0xFFFF). You can convert a character to upper- or lowercase and get its numeric representation using the methods of a Char object. You can also test whether it is a number, letter, or symbol by using the methods prefixed with Is. For exact information, use the GetUnicodeCategory() method to get an enumerated value from System.Globalization.UnicodeCategory. This classifies the character into one of about thirty categories.

In C#, this type is aliased as char. If you need an array of chars, use the String class.

public struct Char : IComparable, IConvertible {
// Public Static Fields
   public const field char MaxValue;                             // =0xffff
   public const field char MinValue;                             // =0x0
                  // Public Static Methods
   public static method double GetNumericValue(char c);  
   public static method double GetNumericValue(string s, 
        int index);  
   public static method UnicodeCategory GetUnicodeCategory(
        char c);  
   public static method UnicodeCategory GetUnicodeCategory(
        string s, int index);  
   public static method bool IsControl(char c);  
   public static method bool IsControl(string s, int index);  
   public static method bool IsDigit(char c);  
   public static method bool IsDigit(string s, int index);  
   public static method bool IsLetter(char c);  
   public static method bool IsLetter(string s, int index);  
   public static method bool IsLetterOrDigit(char c);  
   public static method bool IsLetterOrDigit(string s, 
        int index); public static ...

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