Upload Unzip Extract Zip Files In Asp.Net

1:28:00 am 3 Comments

This post explains how to Upload And Unzip Or Extract Zip File In asp.net to a directory on server then display extracted files in Gridview using C# VB.NET.

I'm using DotNetZip library for extracting zip archives, you need to put Ionic.Zip.dll in Bin folder of your application.

Place one FileUpload control and Button on page to upload files, we will Upload and unzip in Click Event of Button using ExtractAll method of ZipFile object.

Place one GridView on page to Display files after extraction to a folder or directory on server.

You can Delete uploaded file from server once unzipped.

Upload and Extract Zip Files on server in asp.net

HTML SOURCE OF PAGE
   1:  <asp:FileUpload ID="fileUpload1" runat="server"/>
   2:  <asp:Button ID="btnExtract" runat="server" 
   3:              onclick="btnExtract_Click" 
   4:              Text="Upload Zip Files" />
   5:      
   6:  <asp:Label ID="lblMessage" runat="server"/>
   7:   
   8:  <asp:GridView ID="gridviewExtractedFiles" runat="server" 
   9:                AutoGenerateColumns="False">
  10:  <Columns>
  11:  <asp:BoundField DataField="FileName" 
  12:                  HeaderText="File Name"/>
  13:  <asp:BoundField DataField="UncompressedSize" 
  14:                  HeaderText="Size"/>
  15:  <asp:BoundField DataField="CompressedSize"   
  16:                  HeaderText="Compressed Size">
  17:  </asp:BoundField>
  18:  </Columns>
  19:  </asp:GridView>

C# CODE
01using System;
02using System.IO;
03using Ionic.Zip;
04protected void btnExtract_Click(object sender, EventArgs e)
05    {
06        if (fileUpload1.HasFile)
07        {
08            string uploadedFile = Path.GetFileName(fileUpload1.PostedFile.FileName);
09            string location = Server.MapPath("~/ZipFiles/" + uploadedFile);
10            fileUpload1.SaveAs(location);
11 
12            ZipFile fileToExtract = ZipFile.Read(location);
13            fileToExtract.ExtractAll(Server.MapPath("~/www.csharpaspnetarticles.com/"), ExtractExistingFileAction.DoNotOverwrite);
14            gridviewExtracted.DataSource = fileToExtract.Entries;
15            gridviewExtracted.DataBind();
16            lblMessage.Text = "Archive extracted successfully and containes following files";
17        }
18   }

We can use ExtractSelectedEntries method instead of ExtractAll to extract specific files such as *.jpg

VB.NET CODE
01Protected Sub btnExtract_Click(sender As Object, e As EventArgs)
02 If fileUpload1.HasFile Then
03  Dim uploadedFile As String = Path.GetFileName(fileUpload1.PostedFile.FileName)
04  Dim location As String = Server.MapPath("~/ZipFiles/" & uploadedFile)
05  fileUpload1.SaveAs(location)
06 
07  Dim fileToExtract As ZipFile = ZipFile.Read(location)
08  fileToExtract.ExtractAll(Server.MapPath("~/www.csharpaspnetarticles.com/"), ExtractExistingFileAction.DoNotOverwrite)
09  gridviewExtracted.DataSource = fileToExtract.Entries
10  gridviewExtracted.DataBind()
11  lblMessage.Text = "Archive extracted successfully and containes following files"
12 End If
13End Sub
Build and run the application

Download Sample Code

Unknown

3 comments:

  1. Anonymous28 June 2012 at 05:50

    Hi Al-Salman Rahman
    how the size of www.csharpaspnetarticles.com.xls has reduced from 13824 to 1160.

    ReplyDelete
    Replies
    1. Unknown25 July 2012 at 19:54

      I'm using DotNetZip library for extracting zip archives.

      Delete
    2. Unknown25 July 2012 at 19:57

      Dowanload from link http://dotnetzip.codeplex.com/releases/68268/download/258014

      you need to put Ionic.Zip.dll in Bin folder of your application.

      Delete

Subscribe to: Post Comments (Atom)