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DDUtilityApp/TEST/FrmTest01.cs

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+using EIS.Framework.Service.GEM;
+using JWH;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Diagnostics;
+using System.Drawing;
+using System.IO;
+using System.IO.Compression;
+using System.Linq;
+using System.Runtime.Serialization.Formatters.Binary;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace DDUtilityApp.TEST
+{
+
+    public partial class FrmTest01 : Form
+    {
+
+        public string FileName { get; set; }
+
+        public FrmTest01()
+        {
+            InitializeComponent();
+
+            this.SetLayout();
+            this.SetEventHandler();
+        }
+
+        protected void SetLayout()
+        {
+
+        }
+
+        protected void SetEventHandler()
+        {
+            this.button1.Click += Button1_Click;
+            this.button2.Click += Button2_Click;
+        }
+
+        private void Button1_Click(object sender, EventArgs e)
+        {
+            OpenFileDialog dlg = new OpenFileDialog();
+            dlg.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+            if (dlg.ShowDialog() != DialogResult.OK) return;
+
+            this.FileName = dlg.FileName;
+        }
+
+        private void Button2_Click(object sender, EventArgs e)
+        {
+            FileInfo file = new FileInfo(this.FileName);
+            Decompress(file);
+        }
+
+        private static string directoryPath = @".\temp";
+
+        public static void Compress(DirectoryInfo directorySelected)
+        {
+            foreach (FileInfo fileToCompress in directorySelected.GetFiles())
+            {
+                using (FileStream originalFileStream = fileToCompress.OpenRead())
+                {
+                    if ((File.GetAttributes(fileToCompress.FullName) &
+                       FileAttributes.Hidden) != FileAttributes.Hidden & fileToCompress.Extension != ".gz")
+                    {
+                        using (FileStream compressedFileStream = File.Create(fileToCompress.FullName + ".gz"))
+                        {
+                            using (GZipStream compressionStream = new GZipStream(compressedFileStream,
+                               CompressionMode.Compress))
+                            {
+                                originalFileStream.CopyTo(compressionStream);
+                            }
+                        }
+                        FileInfo info = new FileInfo(directoryPath + Path.DirectorySeparatorChar + fileToCompress.Name + ".gz");
+                        Console.WriteLine($"Compressed {fileToCompress.Name} from {fileToCompress.Length.ToString()} to {info.Length.ToString()} bytes.");
+                    }
+                }
+            }
+        }
+
+        public static void Decompress(FileInfo fileToDecompress)
+        {
+            using (FileStream originalFileStream = fileToDecompress.OpenRead())
+            {
+                string currentFileName = fileToDecompress.FullName;
+                string newFileName = currentFileName.Remove(currentFileName.Length - fileToDecompress.Extension.Length);
+
+                using (FileStream decompressedFileStream = File.Create(newFileName))
+                {
+                    using (GZipStream decompressionStream = new GZipStream(originalFileStream, CompressionMode.Decompress))
+                    {
+                        decompressionStream.CopyTo(decompressedFileStream);
+                        Console.WriteLine($"Decompressed: {fileToDecompress.Name}");
+                    }
+                }
+            }
+        }
+
+    }
+
+}