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2010-05-26T15:31:18Z

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2010-05-26T11:38:54Z

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==Demonstrates using the this intrinsic variable, which allows a class instance to identify itself==

<source lang="csharp">
/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa
Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/
//
// This.cs -- Demonstrates using the this intrinsic variable, which
// allows a class instance to identify itself
//
// Compile this program with the following command line:
// C:>csc this.cs
//
namespace nsThis
{
using System;

public class ThisclsMain
{
static public void Main ()
{
// Declare an array of classes
clsThis [] arr = new clsThis[]
{
new clsThis(), new clsThis(), new clsThis(),
new clsThis(), new clsThis(), new clsThis()
};
Console.WriteLine ("{0} instances were created", arr[0].m_Instance);
// Ask each instance in the array to identify itself
foreach (clsThis inst in arr)
{
Console.WriteLine ("This is instance Number " +
inst.Identify().Instance);
}
}
}
internal class clsThis
{
public clsThis ()
{
m_Instance = ++Count;
}
private static int Count = 0;
public int Instance
{
get {return (m_Instance);}
}
internal int m_Instance;
public clsThis Identify ()
{
// Return this instance of the class
return (this);
}
}
}

</source>

==Illustrates the use of the this object reference==

<source lang="csharp">
/*
Mastering Visual C# .NET
by Jason Price, Mike Gunderloy
Publisher: Sybex;
ISBN: 0782129110
*/
/*
Example5_5.cs illustrates the use of the this
object reference
*/

// declare the Car class
class Car
{
public int yearBuilt;
public void SetYearBuilt(int yearBuilt)
{
// the yearBuilt parameter hides the
// the yearBuilt field
this.yearBuilt = yearBuilt;
}
}

public class Example5_5
{
public static void Main()
{
// create a Car object
Car myCar = new Car();
myCar.SetYearBuilt(2000);
System.Console.WriteLine("myCar.yearBuilt = " + myCar.yearBuilt);
}
}

</source>

==Using the this Object Reference==

<source lang="csharp">
public class Product {
public int yearBuilt;
public void SetYearBuilt(int yearBuilt) {
this.yearBuilt = yearBuilt;
}
}
class MainClass{
public static void Main() {
Product myProduct = new Product();
myProduct.SetYearBuilt(2000);
System.Console.WriteLine("myProduct.yearBuilt = " + myProduct.yearBuilt);
}
}
</source>

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в 15:31, 26 мая 2010

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