Technet article version

Enumerables-Technet/README.md

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+Enumérables - Version Technet
+=============================
+
+Ce projet est une refonte des articles sur les énumérables pour une version Wiki Technet.
+
+This project is a rewrite of my articles about enumerables for a Wiki Technet version.

Enumerables-Technet/Source/Enumerables-en/App.config

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+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+    <startup> 
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.1" />
+    </startup>
+</configuration>

Enumerables-Technet/Source/Enumerables-en/EnumFilesV1.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Enumerables
+{
+    /// <summary>
+    /// Enumerable enumerates the text lines of a set of files
+    /// </summary>
+    public class EnumFilesV1 : IEnumerable<String>
+    {
+
+        private List<String> _Lines;
+
+        /// <summary>
+        /// Create a new enumerable
+        /// </summary>
+        public EnumFilesV1(IEnumerable<String> files)
+        {
+            // Init the files
+            this.Files = files.ToArray();
+
+            // Mark the lines list as 'to load' by setting it to null
+            _Lines = null;
+        }
+
+        void LoadFiles()
+        {
+            // Create the lines list
+            _Lines = new List<string>();
+
+            if (this.Files != null)
+            {
+                // For each file
+                foreach (var file in Files)
+                {
+                    try
+                    {
+                        // Open a file text reader
+                        using (var reader = new StreamReader(file))
+                        {
+                            // Read each line of the file
+                            String line;
+                            while ((line = reader.ReadLine()) != null)
+                            {
+                                // Add the line to the list
+                                _Lines.Add(line);
+                            }
+                        }
+                    }
+                    catch { }   // When an error raised while reading the file, go to the next
+                }
+            }
+        }
+
+        /// <summary>
+        /// Returns the lines enumerator
+        /// </summary>
+        public IEnumerator<string> GetEnumerator()
+        {
+            // If the lines list is null then read the files
+            if (_Lines == null)
+            {
+                // Load the files
+                LoadFiles();
+            }
+
+            // Returns the list enumerator
+            return _Lines.GetEnumerator();
+        }
+
+        /// <summary>
+        /// Implements IEnumerator.GetEnumerator() (non generic version)
+        /// </summary>
+        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+
+        /// <summary>
+        /// List of the files
+        /// </summary>
+        public String[] Files { get; private set; }
+
+    }
+
+}

Enumerables-Technet/Source/Enumerables-en/EnumFilesV2.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Enumerables
+{
+    /// <summary>
+    /// Enumerable enumerates the text lines of a set of files, rebuilding the list on each call
+    /// </summary>
+    public class EnumFilesV2 : IEnumerable<String>
+    {
+
+        /// <summary>
+        /// Create a new enumerable
+        /// </summary>
+        public EnumFilesV2(IEnumerable<String> files)
+        {
+            // Init the files
+            this.Files = files.ToArray();
+        }
+
+        IList<String> LoadFiles()
+        {
+            // Create the lines list
+            var result = new List<string>();
+
+            if (this.Files != null)
+            {
+                // For each file
+                foreach (var file in Files)
+                {
+                    try
+                    {
+                        // Open a file text reader
+                        using (var reader = new StreamReader(file))
+                        {
+                            // Read each line of the file
+                            String line;
+                            while ((line = reader.ReadLine()) != null)
+                            {
+                                // Add the line of the list
+                                result.Add(line);
+                            }
+                        }
+                    }
+                    catch { }   // When an error raised while reading the file, go to the next
+                }
+            }
+
+            // Returns the list
+            return result;
+        }
+
+        /// <summary>
+        /// Returns the enumerator of the lines
+        /// </summary>
+        public IEnumerator<string> GetEnumerator()
+        {
+            // Build the list
+            var list = LoadFiles();
+
+            // Return the list enumerator
+            return list.GetEnumerator();
+        }
+
+        /// <summary>
+        /// Implements IEnumerator.GetEnumerator() (non generic version)
+        /// </summary>
+        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+
+        /// <summary>
+        /// List of the files
+        /// </summary>
+        public String[] Files { get; private set; }
+
+    }
+
+}