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		<title>Csharp/CSharp Tutorial/Class/IEnumerator - История изменений</title>
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		<updated>2026-04-29T18:29:22Z</updated>
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		<id>http://nfex.ru/index.php?title=Csharp/CSharp_Tutorial/Class/IEnumerator&amp;diff=5645&amp;oldid=prev</id>
		<title> в 15:31, 26 мая 2010</title>
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				<updated>2010-05-26T15:31:53Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Предыдущая&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Версия 15:31, 26 мая 2010&lt;/td&gt;
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	<entry>
		<id>http://nfex.ru/index.php?title=Csharp/CSharp_Tutorial/Class/IEnumerator&amp;diff=5646&amp;oldid=prev</id>
		<title>Admin: 1 версия</title>
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				<updated>2010-05-26T12:16:06Z</updated>
		
		<summary type="html">&lt;p&gt;1 версия&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Новая страница&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Implements IEnumerator==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
&amp;lt;source lang=&amp;quot;csharp&amp;quot;&amp;gt;using System;&lt;br /&gt;
using System.Collections;&lt;br /&gt;
class User {&lt;br /&gt;
    public User(string name) { this.name = name; }&lt;br /&gt;
    string name;&lt;br /&gt;
    public string Name { get { return name; } }&lt;br /&gt;
};&lt;br /&gt;
class DBManager : IEnumerable {&lt;br /&gt;
    public DBManager() {&lt;br /&gt;
        onlineUsers.Add(new User(&amp;quot;T&amp;quot;));&lt;br /&gt;
        onlineUsers.Add(new User(&amp;quot;K&amp;quot;));&lt;br /&gt;
        onlineUsers.Add(new User(&amp;quot;E&amp;quot;));&lt;br /&gt;
    }&lt;br /&gt;
    ArrayList onlineUsers = new ArrayList();&lt;br /&gt;
    public IEnumerator GetEnumerator() {&lt;br /&gt;
        return new Enumerator(onlineUsers);&lt;br /&gt;
    }&lt;br /&gt;
    class Enumerator : IEnumerator {&lt;br /&gt;
        const string INVALID_RECORD = &amp;quot;Use MoveNext before calling Current&amp;quot;;&lt;br /&gt;
        public Enumerator(ArrayList onlineUsers) {&lt;br /&gt;
            foreach (User user in onlineUsers) {&lt;br /&gt;
                this.onlineUsers.Add(user);&lt;br /&gt;
            }&lt;br /&gt;
            Reset();&lt;br /&gt;
        }&lt;br /&gt;
        ArrayList onlineUsers = new ArrayList();&lt;br /&gt;
        int index;&lt;br /&gt;
        public bool MoveNext() {&lt;br /&gt;
            return (++index &amp;lt; onlineUsers.Count);&lt;br /&gt;
        }&lt;br /&gt;
        public object Current {&lt;br /&gt;
            get {&lt;br /&gt;
                if (-1 == index)&lt;br /&gt;
                    throw new InvalidOperationException(INVALID_RECORD);&lt;br /&gt;
                if (index &amp;lt; onlineUsers.Count)&lt;br /&gt;
                    return onlineUsers[index];&lt;br /&gt;
                else&lt;br /&gt;
                    return null;&lt;br /&gt;
            }&lt;br /&gt;
        }&lt;br /&gt;
        public void Reset() { index = -1; }&lt;br /&gt;
    }&lt;br /&gt;
    static void Main(string[] args) {&lt;br /&gt;
        DBManager db = new DBManager();&lt;br /&gt;
        IEnumerator e = db.GetEnumerator();&lt;br /&gt;
        while (e.MoveNext()) {&lt;br /&gt;
            User user = (User)e.Current;&lt;br /&gt;
            Console.WriteLine(&amp;quot;User={0}&amp;quot;, user.Name);&lt;br /&gt;
        }&lt;br /&gt;
    }&lt;br /&gt;
}&amp;lt;/source&amp;gt;&lt;/div&gt;</summary>
		<author><name>Admin</name></author>	</entry>

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