public static void RaiseEvent(this object obj, EventHandler handler, Func&lt;EventArgs&gt; func) { if (handler == null) return; handler(obj, func()); } public static void RaiseEvent&lt;TEventArgs&gt;(this object obj, EventHandler&lt;TEventArgs&gt; handler, TEventArgs e) where TEventArgs : EventArgs { RaiseEvent(obj, handler, () =&gt; e); } public static void RaiseEvent&lt;TEventArgs&gt;(this object obj, EventHandler&lt;TEventArgs&gt; handler,Func&lt;TEventArgs&gt; func) where TEventArgs : EventArgs { if (handler == null) return; handler(obj, func()); } }</pre></div> namespace ConsoleApplication14 { class Program { static void Main(string[] args) { Person Larry = new Person(); Larry.

private IQueryable&lt;WikipediaKeywordSearchResult&gt;KeyWordSearch(string keyWord) { return from item in (new WikipediaContext()).KeywordSearch where item.Keyword == keyWord select item; }</pre></div>

namespace ConsoleApplication13 { class Program { static void Main(string[] args) { foreach (var ip in GetLocalIPV6IP()) { Console.WriteLine(ip); } } private static IEnumerable&lt;String&gt; GetLocalIPV6IP() { return (from adapter in NetworkInterface.GetAllNetworkInterfaces() where adapter .NetworkInterfaceType == NetworkInterfaceType.Ethernet from AddressInfo in adapter.GetIPProperties().UnicastAddresses.OfType&lt;UnicastIPAddressInformation&gt;() where AddressInfo.Address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6 let ipAddress = AddressInfo.Address.ToString() select ipAddress); } } }

#region Event event NameChangingEventHandler NameChanging; event NameChangedEventHandler NameChanged; #endregion</pre> #region Event event EventHandler<FriendEventArgs> FriendAdded; #endregion #region Protected Method protected void OnFriendAdded(FriendEventArgs e) { if (FriendAdded == null) return; FriendAdded(this, e); } #endregion #region Public Method public void AddFriend(Person friend) { Friends.Add(friend); OnFriendAdded(new FriendEventArgs(friend.Name)); } #endregion … class FriendEventArgs : EventArgs { #region Var private String _name; #endregion #region Property public String Name { get { if (_name == null) return String.

namespace DictServceDemo { public partial class Form1 : Form { #region Var private DictService _dictService; #endregion #region Private Property public DictService m_DictService { get { if (_dictService == null) _dictService = new DictService(); return _dictService; } } #endregion #region Constructor public Form1() { InitializeComponent(); } #endregion #region Event Process private void Form1_Load(object sender, EventArgs e) { cbxDict.DisplayMember = "Name"; cbxDict.DataSource = m_DictService.DictionaryList(); cbxStrategy.DisplayMember = "Id"; cbxStrategy.DataSource = m_DictService.StrategyList(); } private void lbxResult_SelectedIndexChanged(object sender, EventArgs e) { if (cbxDict.

public static class StreamExtension { public static void Write(this Stream targetStream, byte[] buffer) { if (!targetStream.CanWrite) throw new ArgumentException(“targetStream”, “Unwritable stream”); targetStream.Write(buffer, 0, buffer.Length); } public static void Write(this Stream targetStream, Stream sourceStream) { if (!targetStream.CanWrite) throw new ArgumentException("targetStream", "Unwritable stream"); if (sourceStream == null) throw new ArgumentNullException("sourceStream"); if (!sourceStream.CanRead) throw new ArgumentException("sourceStream", "Unreadable stream"); targetStream.Write(sourceStream, 1024, null); } public static void Write(this Stream targetStream, Stream sourceStream, int bufferSize, Action&lt;object, System.

foreach (Win32_UserAccount account in query) { Console.WriteLine(account.Name); } } }

private IEnumerable&lt;ImageSearchResult&gt; SearchImages(string keyWord) { return from item in m_Bing.Images where item.Query == keyWord select item; }</pre>