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[book] [en] Pro C# 2008 and the NET 3.5 Platform Fourth Edition

// Init a standard array.

int[] myArrayOfInts = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };



// Init a generic List<> of ints.

List myGenericList = new List { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };



// Init an ArrayList with numerical data.

ArrayList myList = new ArrayList { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };

If your container is managing a collection of object types, you can blend object initialization

syntax with collection initialization syntax to provide the following:

List
myListOfPoints = new List

{

new Point { X = 2, Y = 2 },



new Point { X = 3, Y = 3 },

C H A P T E R   1 3  



C #   2 0 0 8   L A N G U A G E   F E AT U R E S



439

8849CH13.qxd  10/2/07  12:42 PM  Page 439




new Point(PointColor.BloodRed){ X = 4, Y = 4 }

};

foreach (var pt in myListOfPoints)



{

Console.WriteLine(pt);

}

Again, the benefit of this syntax is that you save yourself numerous keystrokes. While the



nested curly brackets can become difficult to read if you don’t mind your formatting, imagine the

amount of code that would be required to fill the following List of Rectangles if we did not have

collection initialization syntax:

List myListOfRects = new List

{

new Rectangle {TopLeft = new Point { X = 10, Y = 10 },



BottomRight = new Point { X = 200, Y = 200}},

new Rectangle {TopLeft = new Point { X = 2, Y = 2 },

BottomRight = new Point { X = 100, Y = 100}},

new Rectangle {TopLeft = new Point { X = 5, Y = 5 },

BottomRight = new Point { X = 90, Y = 75}}

};

foreach (var r in myListOfRects)



{

Console.WriteLine(r);

}


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