ASP.Net: Zip files from multiple Folder (Directory) using Ionic.Zip library in C# and VB.Net

landomar...

SOLVED CLOSED ACTIVE ANSWERED
User: landomarossi
Posted: on Jun 17, 2022 05:40 AM
Forum: ASP.Net Web Forms
Answer: 1
Views: 7105
Sample Code: Download

Hi, I need your help.

I try to using the Ionic.Zip library for compress the pdf files stored in public folder on my server.

For each month subfolder I have stored the corresponding PDF file.

The code below compresses all pdf files contained on subfolder of all months.

How to do compresses all pdf files contained on subfolder previous month?

I need compress for each folder (A,AA, AAA) the pdf files stored in subfolder May.

On the folder "A" subfolder "May" I've stored the

May_A.pdf file

On the folder "AA" subfolder "May" I've stored the

May_AA.pdf file

On the folder "AAA" subfolder "May" I've stored the

May_AAA.pdf file

I need using Ionic.Zip library get these files

May_A.pdf,
May_AA.pdf
May_AAA.pdf

and compress these files into a single zip file named

May_2022.zip

Any suggestion?

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        try
        {
            filename = @"C:\inetpub\wwwroot\public\";
             
            string[] states = {
                "A",
                "AA",
                "AAA" };
 
            foreach (string state in states)
            {
                zipPath = @"C:\inetpub\wwwroot\public\Zip\" + state + "_" +
                    DateTime.Now.ToString("yyyy_MM_dd_HH_mm") + ".zip";
 
                using (ZipFile zipFile = new ZipFile())
                {
                    foreach (var item in
                        Directory.GetDirectories(filename + "/" + state))
                    {
                        string folderName = new DirectoryInfo(item).Name;
                        zipFile.AddDirectory(item, folderName);
                    }
 
                    foreach (string file in
                        Directory.GetFiles(filename + "/" + state))
                    {
                        zipFile.AddFile(file);
                    }
 
                    zipFile.Save(zipPath);
                }
            }
        }
        catch (Exception ex)
        {
            throw new ApplicationException("operation failed!", ex);
        }
        finally
        {
 
        }
    }
}

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dharmend...

0 3

Reply
ANSWER
User: dharmendr
Replied: on Jun 18, 2022 05:54 AM
Modified: on Jun 18, 2022 06:02 AM
Report

Hi landomarossi,

Use Directory.GetFiles to retrive all the files bay passing the Path, SearchPattern and the Search Option.

Path - This is the Directory path.

SearchPattern - The Pattern you wan tot search.

SearchOption - Specifies whether you want to search all Directories.

Check the below example.

HTML

<asp:Button ID="btnDownload" runat="server" Text="Download" OnClick="DownloadFiles" />

Namespaces

using System.IO;
using Ionic.Zip;

VB.Net

Imports System.IO
Imports Ionic.Zip

Code

protected void DownloadFiles(object sender, EventArgs e)
{
    string monthName = DateTime.Now.AddMonths(-1).ToString("MMM");
    string directoryName = DateTime.Now.AddMonths(-1).ToString("MMM_yyyy");
    string[] files = Directory.GetFiles(Server.MapPath("~/Files"), monthName + "_*.pdf", SearchOption.AllDirectories);
    using (ZipFile zip = new ZipFile())
    {
        zip.AlternateEncodingUsage = ZipOption.AsNecessary;
        zip.AddDirectoryByName(directoryName);
        foreach (string filePath in files)
        {
            zip.AddFile(filePath, directoryName);
        }

        zip.Save(Server.MapPath("~/" + directoryName + ".zip"));
    }
}

VB.Net

Protected Sub DownloadFiles(ByVal sender As Object, ByVal e As EventArgs)
    Dim monthName As String = DateTime.Now.AddMonths(-1).ToString("MMM")
    Dim directoryName As String = DateTime.Now.AddMonths(-1).ToString("MMM_yyyy")
    Dim files As String() = Directory.GetFiles(Server.MapPath("~/Files"), monthName & "_*.pdf", SearchOption.AllDirectories)

    Using zip As ZipFile = New ZipFile()
        zip.AlternateEncodingUsage = ZipOption.AsNecessary
        zip.AddDirectoryByName(directoryName)
        For Each filePath As String In files
            zip.AddFile(filePath, directoryName)
        Next
        zip.Save(Server.MapPath("~/" + directoryName + ".zip"))
    End Using
End Sub

Screenshots

Files inside the Zip Folder

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ASP.Net: Zip files from multiple Folder (Directory) using Ionic.Zip library in C# and VB.Net

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