How to zip and unzip files using C#

Question

Hi. How to zip and unzip files using C# Thanks Akila

Mayur Gujrathi · Answer

Simply download eacompression dll its free and do as following using System; using System.Collections; using EACompression; void Unzip( ) { try { ZipArchive oZip = new ZipArchive( TryIt ); oZip.Load( c:\test.zip ); ZipFile [] zs = oZip.Files; int count = zs.Length; string password = ; bool overwrite = true; for( int i = 0; i { ZipFile z = zs[i]; oZip.ExtractTo( z password c:\unzipped overwrite ); } //another way is: //oZip.ExtractAll( c:\uuzipped password ); //if you want to remove one of the file from this zip archive. //oZip.Remove( zs[0] ); } catch( Exception ep ) { Console.Write( ep.Message ); } } void Zip() { try { ZipArchive oZip = new ZipArchive( TryIt ); oZip.Create( c:\test.zip true ); //create a new zip file; string password = ; //add a single file to zip file. oZip.AddFile( c:\test.gif test.gif password ); //add all files and sub-directory in temp folder to zip archive oZip.AddDirectory( c:\temp password ); } catch( Exception ep ) { Console.Write( ep.Message ); } }

Datta Kharad · Answer

Hi... private void btnZip_Click(object sender EventArgs e) { if (files != null) { if (saveFileDialog1.ShowDialog() == DialogResult.OK) { txtZip.Text = saveFileDialog1.FileName; Zip(txtZip.Text.Trim() files); } } } private List GetZipFiles(ZipFile zipfil) { List lstZip = new List (); Enumeration zipEnum = zipfil.entries(); while (zipEnum.hasMoreElements()) { ZipEntry zip = (ZipEntry)zipEnum.nextElement(); lstZip.Add(zip); } return lstZip; } private void Zip(string zipFileName string[] sourceFile) { FileOutputStream filOpStrm = new FileOutputStream(zipFileName); ZipOutputStream zipOpStrm = new ZipOutputStream(filOpStrm); FileInputStream filIpStrm = null; foreach (string strFilName in sourceFile) { filIpStrm = new FileInputStream(strFilName); ZipEntry ze = new ZipEntry(Path.GetFileName(strFilName)); zipOpStrm.putNextEntry(ze); sbyte[] buffer = new sbyte[1024]; int len = 0; while ((len = filIpStrm.read(buffer)) >= 0) { zipOpStrm.write(buffer 0 len); } } zipOpStrm.closeEntry(); filIpStrm.close(); zipOpStrm.close(); filOpStrm.close(); } private void Extract(string zipFileName string destinationPath) { FileInfo fInf = new FileInfo(zipFileName); progressBar1.Visible = true; progressBar2.Visible = true; progressBar1.Minimum = 0; progressBar1.Maximum = Convert.ToInt32((fInf.Length)/100); lstExtractedFiles.Items.Clear(); ZipFile zipfile = new ZipFile(zipFileName); List zipFiles = GetZipFiles(zipfile); progressBar2.Minimum = 0; progressBar2.Maximum = zipFiles.Count; lstExtractedFiles.Items.Add(Files Extracted to:  + destinationPath); lstExtractedFiles.Items.Add(------------------------------------------------------------------------------------------------------------------------); foreach (ZipEntry zipFile in zipFiles) { if (!zipFile.isDirectory()) { InputStream s = zipfile.getInputStream(zipFile); try { Directory.CreateDirectory(destinationPath + \ + Path.GetDirectoryName(zipFile.getName())); FileOutputStream dest = new FileOutputStream(Path.Combine(destinationPath + \ + Path.GetDirectoryName(zipFile.getName()) Path.GetFileName(zipFile.getName()))); try { int len = 0; sbyte[] buffer = new sbyte[8000]; while ((len = s.read(buffer)) >= 0) { dest.write(buffer 0 len); if (progressBar1.Value + (8000 / 1000) { progressBar1.Value = (progressBar1.Value + (8000 / 1000)); } else { string d = ; } progressBar1.Refresh(); } } finally { dest.close(); } } finally { s.close(); } } lstExtractedFiles.Items.Add(zipFile.getName()); lstExtractedFiles.Refresh(); progressBar1.Value = 0; progressBar2.Value = progressBar2.Value + 1; progressBar2.Refresh(); } progressBar2.Value = 0; progressBar1.Visible = false; progressBar2.Visible = false; } private void btnBrowse_Click(object sender EventArgs e) { if (openFileDialog1.ShowDialog() == DialogResult.OK) { files = openFileDialog1.FileNames; lstBoxFilesToZip.DataSource = files; } } private void btnExtract_Click(object sender EventArgs e) { if(txtExtract.Text.Trim().Length > 0) { if(folderBrowserDialog1.ShowDialog() == DialogResult.OK) { Extract(txtExtract.Text.Trim() folderBrowserDialog1.SelectedPath); } } } private void btnExtractBrowse_Click(object sender EventArgs e) { openFileDialog1.Multiselect = false; if (openFileDialog1.ShowDialog() == DialogResult.OK) { txtExtract.Text = openFileDialog1.FileName; lstExtractedFiles.Items.Clear(); } openFileDialog1.Multiselect = true; } If you got correct answer then mark as Accepted Answer.