6 August 2012

Anonymous Types in C#

Anonymous Types in C#

Anonymous types provide a convenient way to encapsulate a set of read-only properties into a single object without having to explicitly define a type first.

The following example shows an anonymous type that is initialized with two properties named Amount and Message.

var v = new { Amount = 108, Message = "Hello" };

// Rest the mouse pointer over v.Amount and v.Message in the following
// statement to verify that their inferred types are int and string.
Console.WriteLine(v.Amount + v.Message);
 In the following example, the names of the properties of the anonymous type are Color and Price.

var productQuery = 
    from prod in products
    select new { prod.Color, prod.Price };

foreach (var v in productQuery)
    Console.WriteLine("Color={0}, Price={1}", v.Color, v.Price);

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