Filesystemwacther OnCreated to copy file to another folder

Question

Hi All,

How to copy all file from OnCreated to folder.

here is code to try;

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Diagnostics;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace Dot_Net

{

public partial class Form1 : Form

{

    private readonly string TargetPath = @"C:\Windows\test01";

    public Form1()

    {

        InitializeComponent();

    }

    private void Form1_Load(object sender, EventArgs e)

    {

        var watcher = new FileSystemWatcher(@"c:\")

        {

            NotifyFilter = NotifyFilters.Attributes

                 | NotifyFilters.CreationTime

                 | NotifyFilters.DirectoryName

                 | NotifyFilters.FileName

                 | NotifyFilters.LastAccess

                 | NotifyFilters.LastWrite

                 | NotifyFilters.Security

                 | NotifyFilters.Size

        };

        watcher.Changed += OnChanged;

        watcher.Deleted += OnDeleted;

        watcher.Created += OnCreated;

        watcher.Renamed += OnRenamed;

        watcher.Error += OnError;

        watcher.Filter = "*.*";

        watcher.IncludeSubdirectories = true;

        watcher.EnableRaisingEvents = true;

        //this.Opacity = 0;

    }

    private static void OnChanged(object sender, FileSystemEventArgs e)

    {

        if (e.ChangeType != WatcherChangeTypes.Changed)

        {

            return;

        }

        Console.WriteLine($"Changed: {e.FullPath}");

    }

    private static void OnDeleted(object sender, FileSystemEventArgs e) => Console.WriteLine($"Deleted: {e.FullPath}");

    private void OnCreated(object source, FileSystemEventArgs e)

    {

        try

        {

            FileInfo fileInfo = new FileInfo(e.FullPath);

            string TargetFile = Path.Combine(TargetPath, fileInfo.Name);

            if (File.Exists(TargetFile))

            {

                File.Delete(TargetFile);

            }

            File.Copy(e.FullPath, TargetFile, true);

            listBox1.Invoke((Action)(() => listBox1.Items.Add(e.FullPath + TargetFile)));

        }

        catch (Exception exception)

        {

            Debug.WriteLine(exception.Message);

        }

    }

    private void OnRenamed(object sender, RenamedEventArgs e)

    {

    }

    private static void OnError(object sender, ErrorEventArgs e) => DisplayException(e.GetException());

    /// <summary>

    /// For debug purposes

    /// For a production environment write to a log file

    /// </summary>

    /// <param name="ex"></param>

    private static void DisplayException(Exception ex)

    {

        if (ex != null)

        {

            Debug.WriteLine($"Message: {ex.Message}");

            Debug.WriteLine("Stacktrace:");

            Debug.WriteLine(ex.StackTrace);

            Debug.WriteLine("");

            DisplayException(ex.InnerException);

        }

    }

}

}

Thank

Answer 1

Hi @YUSOF , Welcome to Microsoft Q&A,

OnCreated gets the created file, constructs the target path in the specified directory, checks if a file with the same name exists in the target directory, deletes it if it exists, and then copies the newly created file to the target directory.

private void OnCreated(object source, FileSystemEventArgs e)
{
    try
    {
        DirectoryInfo sourceDir = new DirectoryInfo(@"c:\"); // Change this to your source directory
        FileInfo[] files = sourceDir.GetFiles();

        foreach (FileInfo file in files)
        {
            string targetFile = Path.Combine(TargetPath, file.Name);

            if (File.Exists(targetFile))
            {
                File.Delete(targetFile);
            }

            File.Copy(file.FullName, targetFile, true);
            listBox1.Invoke((Action)(() => listBox1.Items.Add(file.FullName + " copied to " + targetFile)));
        }
    }
    catch (Exception exception)
    {
        Debug.WriteLine(exception.Message);
    }
}

Best Regards,

Jiale

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