C # 6.0 (C # VNext) new features: Expression bodied Functions and Properties

Source: Internet
Author: User

Expression bodied Function can be used in:
• Methods
• user-defined operators
• Type conversions
• Indexers
Look at the following example:
`public class RgbColor (int R, int. g, int b) {public  int Red {get;} = r;  public int Green {get;} = g;  public int Blue {get;} = b;   public string Tohex () =    string. Format ("#{0:x2}{1:x2}{2:x2}", Red, Green, Blue);   public static RgbColor operator-(RgbColor color) =    new RgbColor (      color. Red ^ 0xFF,      color. Green ^ 0xFF,      color. Blue ^ 0xFF    );}`

Examples of "methods" used:
`public string Tohex () = string. Format ("#{0:x2}{1:x2}{2:x2}", Red, Green, Blue);p ublic override string ToString () = this. Name;`

Examples of "user-defined operators":
`  public static RgbColor operator-(RgbColor color) =    new RgbColor (      color. Red ^ 0xFF,      color. Green ^ 0xFF,      color. Blue ^ 0xFF    );`

`public static Complex operator + (Complex A, Complex b) = A.add (b);`

Special note that this is Read only and not Field
`public string ID = = Guid.NewGuid (). ToString ();`
Another example:
`public class point (int x, int. y) {public    int x + = x;    public int y = = y;    public double Dist = math.sqrt (x * x + y * y);    Public point Move (int dx, int dy) = + new Point (x + dx, y + dy);}`

Example of "type conversions": Implementing the implicit conversion between string and Name
`public static implicit operator string (Name N) = N.first + "" + n.last;`

Examples of "indexers" used:

`Public Customer this[id Id] \ = store. Lookupcustomer (ID);`

C # 6.0 (C # VNext) new features: Expression bodied Functions and Properties

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