Invia un file al cestino del riciclo

Question

Attualmente sto usando la seguente funzione

file.Delete();

.

Ma come posso usare questa funzione per inviare un file al cestino del riciclo invece di eliminarlo a titolo definitivo?

Answer 1

Nota: anche questo non funziona con app non interattive non ui come Windows Services

Questo involucro può fornire la funzionalità necessaria:

using System.Runtime.InteropServices;

public class FileOperationAPIWrapper
    {
        /// <summary>
        /// Possible flags for the SHFileOperation method.
        /// </summary>
        [Flags]
        public enum FileOperationFlags : ushort
        {
            /// <summary>
            /// Do not show a dialog during the process
            /// </summary>
            FOF_SILENT = 0x0004,
            /// <summary>
            /// Do not ask the user to confirm selection
            /// </summary>
            FOF_NOCONFIRMATION = 0x0010,
            /// <summary>
            /// Delete the file to the recycle bin.  (Required flag to send a file to the bin
            /// </summary>
            FOF_ALLOWUNDO = 0x0040,
            /// <summary>
            /// Do not show the names of the files or folders that are being recycled.
            /// </summary>
            FOF_SIMPLEPROGRESS = 0x0100,
            /// <summary>
            /// Surpress errors, if any occur during the process.
            /// </summary>
            FOF_NOERRORUI = 0x0400,
            /// <summary>
            /// Warn if files are too big to fit in the recycle bin and will need
            /// to be deleted completely.
            /// </summary>
            FOF_WANTNUKEWARNING = 0x4000,
        }

        /// <summary>
        /// File Operation Function Type for SHFileOperation
        /// </summary>
        public enum FileOperationType : uint
        {
            /// <summary>
            /// Move the objects
            /// </summary>
            FO_MOVE = 0x0001,
            /// <summary>
            /// Copy the objects
            /// </summary>
            FO_COPY = 0x0002,
            /// <summary>
            /// Delete (or recycle) the objects
            /// </summary>
            FO_DELETE = 0x0003,
            /// <summary>
            /// Rename the object(s)
            /// </summary>
            FO_RENAME = 0x0004,
        }



        /// <summary>
        /// SHFILEOPSTRUCT for SHFileOperation from COM
        /// </summary>
        [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
        private struct SHFILEOPSTRUCT
        {

            public IntPtr hwnd;
            [MarshalAs(UnmanagedType.U4)]
            public FileOperationType wFunc;
            public string pFrom;
            public string pTo;
            public FileOperationFlags fFlags;
            [MarshalAs(UnmanagedType.Bool)]
            public bool fAnyOperationsAborted;
            public IntPtr hNameMappings;
            public string lpszProgressTitle;
        }

        [DllImport("shell32.dll", CharSet = CharSet.Auto)]
        private static extern int SHFileOperation(ref SHFILEOPSTRUCT FileOp);

        /// <summary>
        /// Send file to recycle bin
        /// </summary>
        /// <param name="path">Location of directory or file to recycle</param>
        /// <param name="flags">FileOperationFlags to add in addition to FOF_ALLOWUNDO</param>
        public static bool Send(string path, FileOperationFlags flags)
        {
            try
            {
                var fs = new SHFILEOPSTRUCT
                                        {
                                            wFunc = FileOperationType.FO_DELETE,
                                            pFrom = path + '\0' + '\0',
                                            fFlags = FileOperationFlags.FOF_ALLOWUNDO | flags
                                        };
                SHFileOperation(ref fs);
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        /// <summary>
        /// Send file to recycle bin.  Display dialog, display warning if files are too big to fit (FOF_WANTNUKEWARNING)
        /// </summary>
        /// <param name="path">Location of directory or file to recycle</param>
        public static bool Send(string path)
        {
            return Send(path, FileOperationFlags.FOF_NOCONFIRMATION | FileOperationFlags.FOF_WANTNUKEWARNING);
        }

        /// <summary>
        /// Send file silently to recycle bin.  Surpress dialog, surpress errors, delete if too large.
        /// </summary>
        /// <param name="path">Location of directory or file to recycle</param>
        public static bool MoveToRecycleBin(string path)
        {
            return Send(path, FileOperationFlags.FOF_NOCONFIRMATION | FileOperationFlags.FOF_NOERRORUI | FileOperationFlags.FOF_SILENT);

        }

        private static bool deleteFile(string path, FileOperationFlags flags)
        {
            try
            {
                var fs = new SHFILEOPSTRUCT
                                        {
                                            wFunc = FileOperationType.FO_DELETE,
                                            pFrom = path + '\0' + '\0',
                                            fFlags = flags
                                        };
                SHFileOperation(ref fs);
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        public static bool DeleteCompletelySilent(string path)
        {
            return deleteFile(path,
                              FileOperationFlags.FOF_NOCONFIRMATION | FileOperationFlags.FOF_NOERRORUI |
                              FileOperationFlags.FOF_SILENT);
        }
    }

.

Answer 2

Usa filesystem.DelefleFile e specificare il giusto Riciclare . Mentre questo funzionerà con le app interattive dell'interfaccia utente, non funzionerà con le app non interattive non ui come un'app Service Windows.

Answer 3

da msdn :

Aggiungi un riferimento all'Assemblea Microsoft.visualbasic.La classe necessaria è trovata in questa biblioteca.

Aggiungi questo usando l'istruzione alla parte superiore del file using Microsoft.VisualBasic.FileIO;

Utilizzare FileSystem.DeleteFile Per eliminare un file, ha l'opzione per specificare il cestino del riciclo o meno.

Utilizzare FileSystem.DeleteDirectory per eliminare una directory con l'opzione per specificare per inviarlo al cestino del riciclo o no.

Answer 4

La seguente soluzione è più semplice degli altri:

using Shell32;

static class Program
{
    public static Shell shell = new Shell();
    public static Folder RecyclingBin = shell.NameSpace(10);

    static void Main()
    {
        RecyclingBin.MoveHere("PATH TO FILE/FOLDER")
    }
}

.

È possibile utilizzare altre funzionalità del cestino del riciclo utilizzando questa libreria.

In primo luogo, non dimenticare di aggiungere la libreria "Microsoft Shell Controls and Automation" (dal menu COM), per poter utilizzare lo spazio dei nomi Shell32.Sarà collegato dinamicamente al tuo progetto, invece di essere compilato insieme al tuo programma.

Answer 5

Purtroppo è necessario ricorrere all'API Win32 per rimuovere un file al cestino del riciclo.Prova il seguente codice, basato su Questo post .Fa uso della funzione Generico SHFileOperation per le operazioni del file system tramite il guscio di Windows.

Definisci quanto segue (in una classe di utilità è probabilmente la migliore).

[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Auto, Pack=1)]
public struct SHFILEOPSTRUCT
{
        public IntPtr hwnd;
        [MarshalAs(UnmanagedType.U4)] public int wFunc;
        public string pFrom;
        public string pTo;
        public short fFlags;
        [MarshalAs(UnmanagedType.Bool)] public bool fAnyOperationsAborted;
        public IntPtr hNameMappings;
        public string lpszProgressTitle;
}

[DllImport("shell32.dll", CharSet=CharSet.Auto)]
public static extern int SHFileOperation(ref SHFILEOPSTRUCT FileOp);

public const int FO_DELETE = 3;
public const int FOF_ALLOWUNDO = 0x40;
public const int FOF_NOCONFIRMATION = 0x10; // Don't prompt the user

.

E per usarlo per eliminare un file, inviandolo al cestino, vuoi qualcosa come:

var shf = new SHFILEOPSTRUCT();
shf.wFunc = FO_DELETE;
shf.fFlags = FOF_ALLOWUNDO | FOF_NOCONFIRMATION;
shf.pFrom = @"C:\test.txt";
SHFileOperation(ref shf);

.

Answer 6

Puoi Dllimport SHFileOperation per fareQuesto.

Answer 7

C'è Biblioteca integrata per questo.

Prima aggiungi riferimento Microsoft.visualbasic Quindi aggiungi questo codice:

FileSystem.DeleteFile(path_of_the_file,
                        Microsoft.VisualBasic.FileIO.UIOption.AllDialogs,
                        Microsoft.VisualBasic.FileIO.RecycleOption.SendToRecycleBin,
                        Microsoft.VisualBasic.FileIO.UICancelOption.ThrowException);

.

Ho trovato questo qui .

Answer 8

Io uso questo metodo di estensione, quindi posso solo utilizzare una directoryInfo o fileinfo ed eliminarlo.

public static class NativeMethods
{
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
        struct SHFILEOPSTRUCT
    {
        public IntPtr hwnd;
        [MarshalAs(UnmanagedType.U4)]
        public int wFunc;
        public string pFrom;
        public string pTo;
        public short fFlags;
        [MarshalAs(UnmanagedType.Bool)]
        public bool fAnyOperationsAborted;
        public IntPtr hNameMappings;
        public string lpszProgressTitle;
    }
    private const int FO_DELETE = 0x0003;
    private const int FOF_ALLOWUNDO = 0x0040;           // Preserve undo information, if possible. 
    private const int FOF_NOCONFIRMATION = 0x0010;      // Show no confirmation dialog box to the user      


    [DllImport("shell32.dll", CharSet = CharSet.Auto)]
    static extern int SHFileOperation(ref SHFILEOPSTRUCT FileOp);

    static bool DeleteFileOrFolder(string path)
    {


        SHFILEOPSTRUCT fileop = new SHFILEOPSTRUCT();
        fileop.wFunc = FO_DELETE;
        fileop.pFrom = path + '\0' + '\0';            
        fileop.fFlags = FOF_ALLOWUNDO | FOF_NOCONFIRMATION;


        var rc= SHFileOperation(ref fileop);
        return rc==0;
    }

    public static bool ToRecycleBin(this DirectoryInfo dir)
    {
        dir?.Refresh();
        if(dir is null || !dir.Exists)
        {
            return false;
        }
        else
            return DeleteFileOrFolder(dir.FullName);
    }
    public static bool ToRecycleBin(this FileInfo file)
    {
        file?.Refresh();

        if(file is null ||!file.Exists)
        {
            return false;
        }
        return DeleteFileOrFolder(file.FullName);
    }
}

.

Un campione Come chiamare Potrebbe essere questo:

private void BtnDelete_Click(object sender, EventArgs e)
{
    if(MessageBox.Show("Are you sure you would like to delete this directory?", "Delete & Close", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
        return;

    var dir= new DirectoryInfo(directoryName);
    dir.ToRecycleBin();

}

.