zip all files from Directory .Using ZipFile

Question

Hi All,

What I try to do;

Zip all files in directory to the different location.
but at the ending debug has error message.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO.Compression;
using System.IO;

namespace CZip
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
                string fi1 = @"C:\Users\User\Desktop\Ajib\";
                string fi2 = @"C:\Users\User\Desktop\Cojib\NM 1.zip";
                ZipFile.CreateFromDirectory(fi1, fi2, CompressionLevel.Fastest, true);
        }
    }
}

Error is;

System.IO.IOException
HResult=0x80070020
Message=The process cannot access the file 'C:\Users\User\Desktop\Ajib\NM 1.zip' because it is being used by another process.
Source=mscorlib
StackTrace:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
at System.IO.Compression.ZipFileExtensions.DoCreateEntryFromFile(ZipArchive destination, String sourceFileName, String entryName, Nullable1 compressionLevel) at System.IO.Compression.ZipFile.DoCreateFromDirectory(String sourceDirectoryName, String destinationArchiveFileName, Nullable1 compressionLevel, Boolean includeBaseDirectory, Encoding entryNameEncoding)
at System.IO.Compression.ZipFile.CreateFromDirectory(String sourceDirectoryName, String destinationArchiveFileName, CompressionLevel compressionLevel, Boolean includeBaseDirectory)
at CZip.Form1.button1_Click(Object sender, EventArgs e) in C:\Users\User\source\repos\CZip\CZip\Form1.cs:line 26
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at CZip.Program.Main() in C:\Users\User\source\repos\CZip\CZip\Program.cs:line 19

Answer 1

Hi @MiPakTeh ,
I made a test with your code, it worked fine.
>>The process cannot access the file 'C:\Users\User\Desktop\Ajib\NM 1.zip' because it is being used by another process.
The error indicates that the NM 1.zip in your Ajib folder is being accessed by another application.
To resolve the problem, close any applications that might be using the files and run the code again.
Best Regards,
Daniel Zhang

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