в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:16:12Z

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==Demonstrate ToString()==

<source lang="csharp">using System;

class MyClass {
static int count = 0;
int id;

public MyClass() {
id = count;
count++;
}

public override string ToString() {
return "MyClass object #" + id;
}
}

class MainClass {
public static void Main() {
MyClass ob1 = new MyClass();
MyClass ob2 = new MyClass();
MyClass ob3 = new MyClass();

Console.WriteLine(ob1);
Console.WriteLine(ob2);
Console.WriteLine(ob3);

}
}</source>
<pre class=codeResult>MyClass object #0
MyClass object #1
MyClass object #2</pre>

==How to override the ToString() method==

<source lang="csharp">using System;
public class Employee
{
public string firstName;
public string lastName;
public Employee(string firstName, string lastName)
{
this.firstName = firstName;
this.lastName = lastName;
}
public override string ToString()
{
return firstName + " " + lastName;
}
}
class MainClass
{
public static void Main()
{
Employee myEmployee = new Employee("A", "M");
Employee myOtherEmployee = new Employee("B", "N");
Console.WriteLine("myEmployee.ToString() = " + myEmployee.ToString());
Console.WriteLine("myOtherEmployee.ToString() = " + myOtherEmployee.ToString());
}
}</source>
<pre class=codeResult>myEmployee.ToString() = A M
myOtherEmployee.ToString() = B N</pre>

==mark override when overriding ToString==

<source lang="csharp">using System;
public class Thing {
public int i = 2;
public int j = 3;
override public string ToString() {
return String.Format("i = {0}, j = {1}", i, j);
}
}</source>

==override ToString==

<source lang="csharp">using System;
using System.Collections;

struct RGB
{
public int red;
public int green;
public int blue;

public RGB(int red, int green, int blue)
{
this.red = red;
this.green = green;
this.blue = blue;
}

public override String ToString()
{
return red.ToString("X")
+ green.ToString("X")
+ blue.ToString("X");
}
}

class BoxTest
{
static ArrayList rgbValues;

public static void Main()
{
RGB rgb = new RGB(255, 255, 255);

rgbValues = new ArrayList();
rgbValues.Add(rgb);

Console.WriteLine("The RGB value is {0}", rgb);
}
}</source>

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Csharp/CSharp Tutorial/Class/ToString - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия