в 15:31, 26 мая 2010

2010-05-26T15:31:53Z

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2010-05-26T12:15:52Z

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==Collections interoperability: cast Array to IList, IList to ICollection, ICollection to IEnumerable, non-generic to generic==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
public class MainClass
{
public static void Main()
{
int[] arrayOfInts = new int[] { 10, 99, 50 };
Array a = (Array)arrayOfInts;
IList list = (IList)arrayOfInts;
ICollection collection = (ICollection)arrayOfInts;
IEnumerable enumerable = (IEnumerable)arrayOfInts;
ICollection<int> collectionGeneric = (ICollection<int>)arrayOfInts;
IEnumerable<int> enumerableGeneric = (IEnumerable<int>)arrayOfInts;
}
}</source>

==ICollection<T>: add a few elements to the collection==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
public class MainClass
{
public static void Main()
{
ICollection<int> myCollection = new Collection<int>();
myCollection.Add(105);
myCollection.Add(232);
myCollection.Add(350);
}
}</source>

==ICollection<T>: Copy the contents to an array to iterate it==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
public class MainClass
{
public static void Main()
{
ICollection<int> myCollection = new Collection<int>();
myCollection.Add(105);
myCollection.Add(232);
myCollection.Add(350);

int[] myArray = new int[myCollection.Count];
myCollection.CopyTo(myArray, 0);
for (int i = 0; i < myArray.Length; i++)
Console.WriteLine(myArray[i]);
}
}</source>
<pre class=codeResult>105
232
350</pre>

==ICollection<T>: delete one==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
public class MainClass
{
public static void Main()
{
ICollection<int> myCollection = new Collection<int>();
myCollection.Add(105);
myCollection.Add(232);
myCollection.Add(350);

myCollection.Remove(232);
}
}</source>

==ICollection<T>: Enumerate the collection"s contents==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
public class MainClass
{
public static void Main()
{
ICollection<int> myCollection = new Collection<int>();
myCollection.Add(105);
myCollection.Add(232);
myCollection.Add(350);

foreach (int i in myCollection)
Console.WriteLine(i);
}
}</source>
<pre class=codeResult>105
232
350</pre>

==ICollection<T>: Search for some specific elements==

<source lang="csharp">using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Text;
public class MainClass
{
public static void Main()
{
ICollection<int> myCollection = new Collection<int>();
myCollection.Add(105);
myCollection.Add(232);
myCollection.Add(350);

Console.WriteLine("Contains {0}? {1}", 105, myCollection.Contains(105));
Console.WriteLine("Contains {0}? {1}", 232, myCollection.Contains(232));
}
}</source>
<pre class=codeResult>Contains 105? True
Contains 232? True</pre>

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Csharp/CSharp Tutorial/Data Structure/ICollection - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия