public static void MoveDirectoryToRecycleBin(
string directoryPath)
{
using (var fo = new FileOperation(new FileOperationProgressSink()))
{
fo.SetOperationFlags(FileOperationDeleteFlags);
fo.DeleteItem(ZlpPathHelper.GetFullPath(directoryPath));
fo.PerformOperations();
}
}
public static void MoveDirectoryToRecycleBin(
string directoryPath)
{
using (var fo = new FileOperation(new FileOperationProgressSink()))
{
fo.SetOperationFlags(FileOperationDeleteFlags);
fo.DeleteItem(ZlpPathHelper.GetFullPath(directoryPath));
fo.PerformOperations();
}
}
protected override void OnDragDropTarget(DragDropTargetEventArgs e)
{
e.HResult = ShellUtilities.S_OK;
var paths = GetPaths(e);
if (paths.Count > 0)
{
e.Effect = DragDropEffects.All;
}
if (e.Type == DragDropTargetEventType.DragDrop)
{
// file operation events need an STA thread
WindowsUtilities.DoModelessAsync(() =>
{
using (var fo = new FileOperation(true))
{
fo.PostCopyItem += (sender, e2) =>
{
// we could add some logic here
};
if (paths.Count == 1)
{
fo.CopyItem(paths[0], FileSystemPath, null);
}
else
{
fo.CopyItems(paths, FileSystemPath);
}
fo.SetOperationFlags(FOF.FOF_ALLOWUNDO | FOF.FOF_NOCONFIRMMKDIR | FOF.FOF_RENAMEONCOLLISION);
fo.PerformOperations();
NotifyUpdate();
}
});
}
}
protected override void OnOperate(ShellOperationEventArgs e)
{
// some advanced errors number can be found in %ProgramFiles(x86)%\Windows Kits\10\Include\<SDK Version>\um\sherrors.h (for example with SDK Version = 10.0.19041.0)
var item = (e.Item as IObjectWithApiItem)?.ApiItem;
switch (e.Operation)
{
case ShellOperation.RecycleItem:
// our recycle bin is only local (a server side recycle bin may be better, but not implemented here)
if (e.Item is IObjectWithApiItem si && e.Item.FileSystemPath != null)
{
// we copy the file in an accessible folder so the user will be able to get to it when pulling out from recycle bin
var recycledPath = si.ApiItem.Recycle();
using (var fo = new FileOperation())
{
fo.SetOperationFlags(FOF.FOFX_RECYCLEONDELETE);
fo.DeleteItem(recycledPath);
fo.PerformOperations();
}
if (item.DeleteAsync(e.Item.FileSystemPath, new DeleteOptions {
Recursive = true
}).Result)
{
// tell the Shell not to process children (in case of a folder), as the server did it (or failed)
const int COPYENGINE_S_DONT_PROCESS_CHILDREN = 0x00270008;
e.HResult = COPYENGINE_S_DONT_PROCESS_CHILDREN;
NotifyUpdate();
}
else
{
// we can only reuse well-known error, for example
e.HResult = ShellUtilities.ERROR_RETRY;
}
}
break;
case ShellOperation.RemoveItem:
if (item.DeleteAsync(e.Item.FileSystemPath, new DeleteOptions {
Recursive = true
}).Result)
{
// tell the Shell not to process children (in case of a folder), as the server did it (or failed)
const int COPYENGINE_S_DONT_PROCESS_CHILDREN = 0x00270008;
e.HResult = COPYENGINE_S_DONT_PROCESS_CHILDREN;
NotifyUpdate();
}
else
{
// we can only reuse well-known error, for example
e.HResult = ShellUtilities.ERROR_RETRY;
}
break;
case ShellOperation.RenameItem:
case ShellOperation.SetNameOf:
var result = item.RenameAsync(e.NewName, e.Item.FileSystemPath).Result;
if (result != null)
{
e.HResult = ShellUtilities.S_OK;
NotifyUpdate();
}
else
{
// we can only reuse well-known error, for example
e.HResult = ShellUtilities.ERROR_RETRY;
}
break;
}
base.OnOperate(e);
}
