c# 如何将文件删除到回收站（文件操作）

很多一部分网上回答都是调用System.VisualBasic的，这部分我就不粘了，毕竟不是使用VB的。以下2种方法基本相同，主要是鉴于构造不同，决定都附上。

1.（http://www.dotblogs.com.tw/larrynung/archive/2012/09/25/75026.aspx?fid=43791）

using System;
using System.Runtime.InteropServices;

namespace ceshiConsole
{
public class FileIOHelper
{
[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;
}

#region Dllimport
[DllImport("shell32.dll", CharSet = CharSet.Auto)]
public static extern int SHFileOperation(ref SHFILEOPSTRUCT FileOp);
#endregion
#region Const
public const int FO_DELETE = 3;
public const int FOF_ALLOWUNDO = 0x40;
public const int FOF_NOCONFIRMATION = 0x10;
#endregion

#region Public Static Method
public static void DeleteFileToRecyclebin(string file, Boolean showConfirmDialog = false)
{
SHFILEOPSTRUCT shf = new SHFILEOPSTRUCT();
shf.wFunc = FO_DELETE;
shf.fFlags = FOF_ALLOWUNDO;
if (!showConfirmDialog)
{
shf.fFlags |= FOF_NOCONFIRMATION;
}
shf.pFrom = file + '\0' + '\0';
SHFileOperation(ref shf);
}
#endregion
}
}
2.该方法转载太多，就找了个百度的链接了（http://zhidao.baidu.com/link?url=jnBCVYOf4yhGdf_YjDFZZQca1EsBixJ4LB1e8lmKotTMjrVI2StNMkswmSlQKUrIkA1_O9RMFsnUd9f_CYWTXa）
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

namespace ceshiConsole
{
public class Cleaner
{
private const int FO_DELETE = 0x3;
private const ushort FOF_NOCONFIRMATION = 0x10;
private const ushort FOF_ALLOWUNDO = 0x40;

[DllImport("shell32.dll", SetLastError = true, CharSet = CharSet.Unicode)]
private static extern int SHFileOperation([In, Out] _SHFILEOPSTRUCT str);

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public class _SHFILEOPSTRUCT
{
public IntPtr hwnd;
public UInt32 wFunc;
public string pFrom;
public string pTo;
public UInt16 fFlags;
public Int32 fAnyOperationsAborted;
public IntPtr hNameMappings;
public string lpszProgressTitle;
}

public static int Delete(string path)
{
_SHFILEOPSTRUCT pm = new _SHFILEOPSTRUCT();
pm.wFunc = FO_DELETE;
pm.pFrom = path + '\0';
pm.pTo = null;
pm.fFlags = FOF_ALLOWUNDO | FOF_NOCONFIRMATION;
return SHFileOperation(pm);
}
}
}
以上在ceshiConsole项目中实现。
以上2中方法的主要区别在于，前者使用的是struct SHFILEOPSTRUCT，后者使用的是class _SHFILEOPSTRUCT。与VB中FileIO.FileSystem.DeleteFile的区别在于，CS调用删除时，如果出错（比如文件不存在，etc）时，不报Exception异常，而是通过SHFileOperation的返回值来区别错误（异常）类型的；而VB报异常。

附：

1.关于SHFileOperation函数的补充

2.C#
删除移动文件(附带弹窗和进度提示)