public static void ShellDelete(string FullPath, RecycleOption recycle, UICancelOption OnUserCancel, FileOrDirectory FileOrDirectory)
{
ShFileOperationFlags operationFlags = ShFileOperationFlags.FOF_SILENT | ShFileOperationFlags.FOF_NOCONFIRMATION;
if (recycle == RecycleOption.SendToRecycleBin)
{
operationFlags |= ShFileOperationFlags.FOF_ALLOWUNDO;
}
ShellFileOperation(SHFileOperationType.FO_DELETE, operationFlags, FullPath, null, OnUserCancel, FileOrDirectory);
}
public static void ShellFileOperation(SHFileOperationType OperationType, ShFileOperationFlags OperationFlags, string FullSource, string FullTarget, UICancelOption OnUserCancel, FileOrDirectory FileOrDirectory)
{
int num;
new UIPermission(UIPermissionWindow.SafeSubWindows).Demand();
FileIOPermissionAccess noAccess = FileIOPermissionAccess.NoAccess;
if (OperationType == SHFileOperationType.FO_COPY)
{
noAccess = FileIOPermissionAccess.Read;
}
else if (OperationType == SHFileOperationType.FO_MOVE)
{
noAccess = FileIOPermissionAccess.Write | FileIOPermissionAccess.Read;
}
else if (OperationType == SHFileOperationType.FO_DELETE)
{
noAccess = FileIOPermissionAccess.Write;
}
string fullDirectoryPath = FullSource;
if (((OperationType == SHFileOperationType.FO_COPY) || (OperationType == SHFileOperationType.FO_MOVE)) && fullDirectoryPath.EndsWith("*", StringComparison.Ordinal))
{
fullDirectoryPath = RemoveEndingSeparator(FullSource.TrimEnd(new char[] { '*' }));
}
if (FileOrDirectory == FileOrDirectory.Directory)
{
DemandDirectoryPermission(fullDirectoryPath, noAccess);
}
else
{
new FileIOPermission(noAccess, fullDirectoryPath).Demand();
}
if (OperationType != SHFileOperationType.FO_DELETE)
{
if (FileOrDirectory == FileOrDirectory.Directory)
{
DemandDirectoryPermission(FullTarget, FileIOPermissionAccess.Write);
}
else
{
new FileIOPermission(FileIOPermissionAccess.Write, FullTarget).Demand();
}
}
SHFILEOPSTRUCT lpFileOp = GetShellOperationInfo(OperationType, OperationFlags, FullSource, FullTarget);
new SecurityPermission(SecurityPermissionFlag.UnmanagedCode).Assert();
try
{
num = SHFileOperation(ref lpFileOp);
SHChangeNotify(145439, 3, IntPtr.Zero, IntPtr.Zero);
}
catch (Exception)
{
throw;
}
finally
{
CodeAccessPermission.RevertAssert();
}
if (lpFileOp.fAnyOperationsAborted)
{
if (OnUserCancel == UICancelOption.ThrowException)
{
throw new OperationCanceledException();
}
}
else if (num != 0)
{
ThrowWinIOError(num);
}
}
private static SHFILEOPSTRUCT GetShellOperationInfo(SHFileOperationType OperationType, ShFileOperationFlags OperationFlags, string[] SourcePaths, [Optional, DefaultParameterValue(null)] string TargetPath)
{
SHFILEOPSTRUCT shfileopstruct2 = new SHFILEOPSTRUCT();
shfileopstruct2.wFunc = (uint)OperationType;
shfileopstruct2.fFlags = (ushort)OperationFlags;
shfileopstruct2.pFrom = GetShellPath(SourcePaths);
if (TargetPath == null)
{
shfileopstruct2.pTo = null;
}
else
{
shfileopstruct2.pTo = GetShellPath(TargetPath);
}
shfileopstruct2.hNameMappings = IntPtr.Zero;
try
{
shfileopstruct2.hwnd = Process.GetCurrentProcess().MainWindowHandle;
}
catch (Exception exception)
{
if ((!(exception is SecurityException) && !(exception is InvalidOperationException)) && !(exception is NotSupportedException))
{
throw;
}
shfileopstruct2.hwnd = IntPtr.Zero;
}
shfileopstruct2.lpszProgressTitle = string.Empty;
return(shfileopstruct2);
}
private static SHFILEOPSTRUCT GetShellOperationInfo(SHFileOperationType OperationType, ShFileOperationFlags OperationFlags, string SourcePath, [Optional, DefaultParameterValue(null)] string TargetPath)
{
return(GetShellOperationInfo(OperationType, OperationFlags, new string[] { SourcePath }, TargetPath));
}
