private void Configure(IFileOpenDialog dialog)
{
dialog.SetOptions(CreateOptions());
if (!string.IsNullOrEmpty(InitialDirectory))
{
var result = NativeMethods.SHCreateItemFromParsingName(InitialDirectory, IntPtr.Zero, typeof(IShellItem).GUID, out var item);
if (result != NativeMethods.S_OK)
{
throw new Win32Exception(result);
}
if (item != null)
{
dialog.SetFolder(item);
}
}
if (Title != null)
{
dialog.SetTitle(Title);
}
if (OkButtonLabel != null)
{
dialog.SetOkButtonLabel(OkButtonLabel);
}
}
/// <summary>
/// 向用户显示 FolderBrowser 的对话框
/// </summary>
/// <param name="owner">任何实现 System.Windows.Forms.IWin32Window（表示将拥有模式对话框的顶级窗口）的对象。</param>
/// <returns></returns>
protected override bool RunDialog(IntPtr hwndOwner)
{
IFileOpenDialog dialog = null;
try
{
dialog = (IFileOpenDialog) new FileOpenDialogRCW();
SetDialogProperties(dialog);
int result = dialog.Show(hwndOwner);
if (result < 0)
{
if ((uint)result == (uint)HRESULT.ERROR_CANCELLED)
{
return(false);
}
else
{
throw System.Runtime.InteropServices.Marshal.GetExceptionForHR(result);
}
}
GetResult(dialog);
return(true);
}
finally
{
if (dialog != null)
{
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(dialog);
}
}
}
private void SetDialogResults(IFileOpenDialog dialog)
{
IShellItem item;
if (!Multiselect)
{
dialog.GetResult(out item);
GetPathAndElementName(item, out string path, out string value);
this.SelectedPath = path;
this.SelectedPaths = new[] { path };
this.SelectedElementName = value;
this.SelectedElementNames = new[] { value };
}
else
{
dialog.GetResults(out IShellItemArray items);
items.GetCount(out uint count);
this.SelectedPaths = new string[count];
this.SelectedElementNames = new string[count];
for (uint i = 0; i < count; ++i)
{
items.GetItemAt(i, out item);
GetPathAndElementName(item, out string path, out string value);
this.SelectedPaths[i] = path;
this.SelectedElementNames[i] = value;
}
this.SelectedPath = null;
this.SelectedElementName = null;
}
}
// This opens up the common file dialog to an IShellItem and waits for the user to select a file from the results.
// It then displays the name of the selected item in a message box.
static void OpenCommonFileDialogTo(IShellItem pShellItemSearch)
{
// Create an instance of IFileOpenDialog
IFileDialog pFileDialog = new IFileOpenDialog();
// Set it to the folder we want to show
pFileDialog.SetFolder(pShellItemSearch);
pFileDialog.Show(default);
/// <summary>
/// 向用户显示 FolderBrowser 的对话框
/// </summary>
/// <param name="owner">任何实现 System.Windows.Forms.IWin32Window（表示将拥有模式对话框的顶级窗口）的对象。</param>
/// <returns></returns>
public DialogResult ShowDialog(IWin32Window owner)
{
IntPtr handle = owner?.Handle ?? GetActiveWindow();
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
//如果选择路径不为空，则设置默认文件夹
if (!string.IsNullOrEmpty(DirectoryPath))
{
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(DirectoryPath, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
//自定义标题
if (!string.IsNullOrEmpty(Description))
{
dialog.SetTitle(Description);
}
//是否显示隐藏文件
if (ShowHidden)
{
//本人扩展的项目
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM | FOS.FOS_FORCESHOWHIDDEN);
}
else
{
//原作者代码
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
}
uint hr = dialog.Show(handle);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
DirectoryPath = path;
return(DialogResult.OK);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private void SetOptions([NotNull] IFileOpenDialog dialog)
{
if (dialog == null)
{
throw new ArgumentNullException(nameof(dialog));
}
dialog.SetOptions(GetDialogOptions());
}
private static String ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory)
#endif
{
//IFileDialog ifd = dialog;
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.PickFolders |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
#if NETCOREAPP3_1_OR_GREATER
IShellItem2?initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#else
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#endif
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
//
HResult hr = dialog.Show(parentHWnd);
if (hr.ValidateDialogShowHResult())
{
dialog.GetResults(out IShellItemArray resultsArray);
#if NETCOREAPP3_1_OR_GREATER
IReadOnlyList <String?> fileNames = Utility.GetFileNames(resultsArray);
#else
IReadOnlyList <String> fileNames = Utility.GetFileNames(resultsArray);
#endif
if (fileNames.Count == 0)
{
return(null);
}
else
{
return(fileNames[0]);
}
}
else
{
// User cancelled.
return(null);
}
}
private void GetResult(IFileOpenDialog dialog)
{
IShellItem item;
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
SelectedPath = path;
}
public DialogResult ShowDialog(IWin32Window owner)
{
IntPtr hwndOwner = owner != null ? owner.Handle : GetActiveWindow();
try {
if (Environment.OSVersion.Version.Major >= 6)
{
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try {
IShellItem item;
if (!string.IsNullOrEmpty(DirectoryPath))
{
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(DirectoryPath, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetTitle(Title);
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
DirectoryPath = path;
return(DialogResult.OK);
} finally {
Marshal.ReleaseComObject(dialog);
}
}
else
{
return(showDefaultDialogEx(owner));
}
} catch (Exception ex) {
return(showDefaultDialog(owner));
}
}
void SetInitialFolder(IFileOpenDialog dialog)
{
if (!string.IsNullOrEmpty(SelectedPath))
{
uint atts = 0;
if (NativeMethods.SHILCreateFromPath(SelectedPath, out IntPtr idl, ref atts) == 0 &&
NativeMethods.SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out IShellItem item) == 0)
{
dialog.SetFolder(item);
}
}
}
private static IReadOnlyList <String> ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex, FileOpenOptions flags)
#endif
{
flags = flags |
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
#if NETCOREAPP3_1_OR_GREATER
IShellItem2?initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#else
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
#endif
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
//
HResult hr = dialog.Show(parentHWnd);
if (hr.ValidateDialogShowHResult())
{
dialog.GetResults(out IShellItemArray resultsArray);
IReadOnlyList <String> fileNames = Utility.GetFileNames(resultsArray);
return(fileNames);
}
else
{
// User cancelled.
return(null);
}
}
private static String[] ShowDialogInner(IFileOpenDialog dialog, IntPtr parentWindowHandle, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex, FileOpenOptions flags)
{
flags = flags |
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
HResult result = dialog.Show(parentWindowHandle);
if (result == HResult.Ok)
{
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames);
}
else if (result == HResult_Win32_Canceled)
{
// Cancelled by user.
return(null);
}
else
{
UInt32 win32ErrorCode = Utility.Win32ErrorFromHResult((UInt32)result);
throw new Win32Exception(error: (Int32)win32ErrorCode);
}
}
public bool?ShowDialog(IWin32Window owner)
{
IntPtr hwndOwner = owner != null ? owner.Handle : GetActiveWindow();
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
string path;
if (!string.IsNullOrEmpty(DirectoryPath))
{
IntPtr idl;
uint atts = 0;
if ((SHILCreateFromPath(DirectoryPath, out idl, ref atts) == 0) &&
(SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0))
{
dialog.SetFolder(item);
}
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
return(false);
}
if (hr != 0)
{
return(null);
}
dialog.GetResult(out item);
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
DirectoryPath = path;
return(true);
}
catch (Exception)
{
return(null);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private void SelectInitialPath(IFileOpenDialog dialog, string path)
{
uint atts = 0;
IntPtr idl = IntPtr.Zero;
if (SHILCreateFromPath(path, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out IShellItem initial) == 0)
{
dialog.SetFolder(initial);
}
Marshal.FreeCoTaskMem(idl);
}
}
private static String[] ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory, String defaultFileName, IReadOnlyCollection <Filter> filters, Int32 selectedFilterZeroBasedIndex, FileOpenOptions flags)
{
flags = flags |
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
if (defaultFileName != null)
{
dialog.SetFileName(defaultFileName);
}
Utility.SetFilters(dialog, filters, selectedFilterZeroBasedIndex);
HResult result = dialog.Show(parentHWnd);
HResult cancelledAsHResult = Utility.HResultFromWin32((int)HResult.Win32ErrorCanceled);
if (result == cancelledAsHResult)
{
// Cancelled
return(null);
}
else
{
// OK
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames);
}
}
public DialogResult ShowDialog(IWin32Window owner)
{
IShellItem result = null;
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
if (!string.IsNullOrEmpty(SelectedPath))
{
SelectInitialPath(dialog, SelectedPath);
}
else if (!string.IsNullOrEmpty(SelectedDesktopAbsoluteParsing))
{
SelectInitialPath(dialog, SelectedDesktopAbsoluteParsing);
}
if (!string.IsNullOrWhiteSpace(Title))
{
dialog.SetTitle(Title);
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_ALLNONSTORAGEITEMS);
uint hr = dialog.Show(owner != null ? owner.Handle : IntPtr.Zero);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out result);
string path;
result.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
SelectedPath = path;
result.GetDisplayName(SIGDN.SIGDN_NORMALDISPLAY, out path);
SelectedNormalDisplay = path;
result.GetDisplayName(SIGDN.SIGDN_DESKTOPABSOLUTEPARSING, out path);
SelectedDesktopAbsoluteParsing = path;
result.GetDisplayName(SIGDN.SIGDN_URL, out path);
SelectedUrl = path;
return(DialogResult.OK);
}
private bool ShowDialog(IntPtr hwndOwner)
{
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
if (!string.IsNullOrEmpty(InitialDirectory))
{
var dir1 = InitialDirectory;
dir1 = Environment.ExpandEnvironmentVariables(dir1); // expand environment variables
dir1 = Path.GetFullPath(dir1); // resolve relative path
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(dir1, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
dialog.SetTitle(Title);
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
_folderName = string.Empty;
return(false);
}
if (hr != 0)
{
_folderName = string.Empty;
return(false);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
_folderName = path;
return(true);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private static String ShowDialogInner(IFileOpenDialog dialog, IntPtr parentWindowHandle, String title, String initialDirectory)
{
//IFileDialog ifd = dialog;
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.PickFolders |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
HResult result = dialog.Show(parentWindowHandle);
if (result == HResult.Ok)
{
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames.Length == 0 ? null : fileNames[0]);
}
else if (result == HResult_Win32_Canceled)
{
// Cancelled by user.
return(null);
}
else
{
UInt32 win32ErrorCode = Utility.Win32ErrorFromHResult((UInt32)result);
throw new Win32Exception(error: (Int32)win32ErrorCode);
}
}
/// <summary>
/// 向用户显示 FolderBrowser 的对话框
/// </summary>
/// <param name="owner">任何实现 System.Windows.Forms.IWin32Window（表示将拥有模式对话框的顶级窗口）的对象。</param>
/// <returns></returns>
public DialogResult ShowDialog(IWin32Window owner = null)
{
IntPtr hwndOwner = owner != null ? owner.Handle : GetActiveWindow();
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
if (!string.IsNullOrEmpty(SelectedPath))
{
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(SelectedPath, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
if (!string.IsNullOrEmpty(Description))
{
dialog.SetTitle(Description);
}
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
SelectedPath = path;
return(DialogResult.OK);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private static String ShowDialogInner(IFileOpenDialog dialog, IntPtr parentHWnd, String title, String initialDirectory)
{
//IFileDialog ifd = dialog;
FileOpenOptions flags =
FileOpenOptions.NoTestFileCreate |
FileOpenOptions.PathMustExist |
FileOpenOptions.PickFolders |
FileOpenOptions.ForceFilesystem;
dialog.SetOptions(flags);
if (title != null)
{
dialog.SetTitle(title);
}
if (initialDirectory != null)
{
IShellItem2 initialDirectoryShellItem = Utility.ParseShellItem2Name(initialDirectory);
if (initialDirectoryShellItem != null)
{
dialog.SetFolder(initialDirectoryShellItem);
}
}
HResult result = dialog.Show(parentHWnd);
HResult cancelledAsHResult = Utility.HResultFromWin32((int)HResult.Win32ErrorCanceled);
if (result == cancelledAsHResult)
{
// Cancelled
return(null);
}
else
{
// OK
IShellItemArray resultsArray;
dialog.GetResults(out resultsArray);
String[] fileNames = Utility.GetFileNames(resultsArray);
return(fileNames.Length == 0 ? null : fileNames[0]);
}
}
private bool ShowDialog(IntPtr owner)
{
IFileOpenDialog fod = null;
try
{
fod = new FileOpenDialog() as IFileOpenDialog;
fod.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
if (!string.IsNullOrEmpty(InitialPath))
{
uint attribute = 0U;
if ((SHILCreateFromPath(InitialPath, out IntPtr idl, ref attribute) == S_OK) &&
(SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out IShellItem item) == S_OK))
{
fod.SetFolder(item);
}
}
if (!string.IsNullOrEmpty(Title))
{
fod.SetTitle(Title);
}
if (fod.Show(owner) != S_OK)
{
return(false);
}
SelectedPath = fod.GetResult().GetDisplayName(SIGDN.SIGDN_FILESYSPATH);
return(true);
}
catch (COMException ce)
{
Debug.WriteLine($"Failed to manage open folder dialog.\r\n{ce}");
return(false);
}
finally
{
if (fod is not null)
{
Marshal.FinalReleaseComObject(fod);
}
}
}
private void SetFolder(IFileOpenDialog dialog, string path)
{
uint attributes = 0;
if (NativeMethods.SHILCreateFromPath(path, out var idl, ref attributes) != 0)
{
return;
}
if (NativeMethods.SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out var item) == 0)
{
dialog.SetFolder(item);
}
if (idl != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(idl);
}
}
private void SetDialogProperties(IFileOpenDialog dialog)
{
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
if (!string.IsNullOrEmpty(SelectedPath))
{
string parent = Path.GetDirectoryName(SelectedPath);
if (parent == null || !Directory.Exists(parent))
{
dialog.SetFileName(SelectedPath);
}
else
{
string folder = Path.GetFileName(SelectedPath);
dialog.SetFolder(CreateItemFromParsingName(parent));
dialog.SetFileName(folder);
}
}
}
private void PickItem(object sender, EventArgs e)
{
var pfd = new IFileOpenDialog();
if (pfd != null)
{
var dwOptions = pfd.GetOptions();
pfd.SetOptions(dwOptions | FILEOPENDIALOGOPTIONS.FOS_ALLNONSTORAGEITEMS | FILEOPENDIALOGOPTIONS.FOS_PICKFOLDERS);
pfd.SetTitle("Item Picker");
var hr = pfd.Show(Handle);
if (hr.Succeeded)
{
if (pfd.GetResult() is IShellItem2 psi)
{
psiDrop = psi;
StartWatching();
}
}
}
}
private void AddButton_Click(object sender, EventArgs e)
{
var fbd = new IFileOpenDialog();
fbd.SetOptions(FOS.PICKFOLDERS | FOS.FORCEFILESYSTEM | FOS.ALLOWMULTISELECT | FOS.PATHMUSTEXIST | FOS.FILEMUSTEXIST);
var hr = fbd.Show(Handle);
if (hr >= 0)
{
fbd.GetResults(out var results);
results.GetCount(out var count);
for (var i = 0U; i < count; i++)
{
results.GetItemAt(i, out var si);
si.GetDisplayName(SIGDN.FILESYSPATH, out var fullPath);
AddDirectory(new DirectoryInfo(fullPath));
}
}
}
private void SetInitialFolder([NotNull] IFileOpenDialog dialog)
{
if (dialog == null)
{
throw new ArgumentNullException(nameof(dialog));
}
if (string.IsNullOrEmpty(SelectedPath))
{
return;
}
uint atts = 0;
if (NativeMethods.SHILCreateFromPath(SelectedPath, out var idl, ref atts) == 0 &&
NativeMethods.SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out var item) == 0)
{
dialog.SetFolder(item);
}
}
/// <summary>
/// Shows the dialog.
/// </summary>
/// <returns>DialogResult.</returns>
public DialogResult ShowDialog()
{
IntPtr hwndOwner = FindWindow("MsiDialogCloseClass", 0);
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try {
IShellItem item;
if (!string.IsNullOrEmpty(DirectoryPath))
{
IntPtr idl;
uint atts = 0;
if (SHILCreateFromPath(DirectoryPath, out idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
return(DialogResult.Cancel);
}
if (hr != 0)
{
return(DialogResult.Abort);
}
dialog.GetResult(out item);
string path;
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
DirectoryPath = path;
return(DialogResult.OK);
} finally {
Marshal.ReleaseComObject(dialog);
}
}
private static void DoGetOpenFileDialogFilename(NktRemoteBridge remoteBridge, Process proc)
{
IFileOpenDialog dlg = null;
object obj = null;
IntPtr hWnd;
string s;
try
{
hWnd = remoteBridge.FindWindow(proc.Id, IntPtr.Zero, "Open", "#32770", false);
if (hWnd == IntPtr.Zero)
hWnd = remoteBridge.FindWindow(proc.Id, IntPtr.Zero, "Abrir", "#32770", false);
if (hWnd == IntPtr.Zero)
{
Console.WriteLine("Cannot find OpenFileDialog window");
return;
}
obj = remoteBridge.GetComInterfaceFromHwnd(proc.Id, hWnd, ShellIIDGuid.IFileDialog);
if (obj == null)
{
Console.WriteLine("Cannot find retrieve IFileOpenDialog interface");
return;
}
dlg = obj as IFileOpenDialog;
dlg.GetFileName(out s);
Console.WriteLine("Filename: [" + s + "]");
}
catch (System.Exception ex)
{
Console.WriteLine(ex.ToString());
}
finally
{
//if (dlg != null)
// Marshal.ReleaseComObject(dlg);
if (obj != null)
Marshal.ReleaseComObject(obj);
}
return;
}
/// <summary>
/// 向用户显示 FolderBrowser 的对话框
/// </summary>
/// <param name="owner">任何实现 System.Windows.Forms.IWin32Window（表示将拥有模式对话框的顶级窗口）的对象。</param>
/// <returns></returns>
public bool?ShowDialog(Window owner = null)
{
;
IntPtr hwndOwner = owner != null ? new WindowInteropHelper(owner).Handle : Process.GetCurrentProcess().MainWindowHandle;
IFileOpenDialog dialog = (IFileOpenDialog) new FileOpenDialog();
try
{
IShellItem item;
if (!string.IsNullOrEmpty(DirectoryPath))
{
uint atts = 0;
if (SHILCreateFromPath(DirectoryPath, out IntPtr idl, ref atts) == 0)
{
if (SHCreateShellItem(IntPtr.Zero, IntPtr.Zero, idl, out item) == 0)
{
dialog.SetFolder(item);
}
}
}
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM);
uint hr = dialog.Show(hwndOwner);
if (hr == ERROR_CANCELLED)
{
return(false);
}
if (hr != 0)
{
return(null);
}
dialog.GetResult(out item);
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out string path);
DirectoryPath = path;
return(true);
}
finally
{
Marshal.ReleaseComObject(dialog);
}
}
private void SetDialogResults([NotNull] IFileOpenDialog dialog)
{
if (dialog == null)
{
throw new ArgumentNullException(nameof(dialog));
}
IShellItem item;
try
{
dialog.GetResult(out item);
GetPathAndElementName(item, out var path, out var value);
SelectedPath = path;
SelectedPaths = new[] { path };
SelectedElementName = value;
SelectedElementNames = new[] { value };
}
catch (COMException ex) when(ex.HResult == -2147418113)
{
dialog.GetResults(out var items);
items.GetCount(out var count);
SelectedPaths = new string[count];
SelectedElementNames = new string[count];
for (uint i = 0; i < count; ++i)
{
items.GetItemAt(i, out item);
GetPathAndElementName(item, out var path, out var value);
SelectedPaths[i] = path;
SelectedElementNames[i] = value;
}
SelectedPath = null;
SelectedElementName = null;
}
}
public SelectFolderDialog()
{
fod = new FileOpenDialog();
ifod = (IFileOpenDialog)fod;
FOS fos;
ifod.GetOptions(out fos);
ifod.SetOptions(fos | FOS.FOS_PICKFOLDERS);
// Fix an apparent bug where the default folder is inside the last selected folder rather than selecting it in parent folder
IShellItem defaultFolder;
ifod.GetFolder(out defaultFolder);
if (defaultFolder != null)
{
IShellItem parentFolder;
defaultFolder.GetParent(out parentFolder);
if (parentFolder != null)
{
ifod.SetFolder(parentFolder);
}
}
}
public SelectFileDialog()
{
fod = new FileOpenDialog();
ifod = (IFileOpenDialog)fod;
}
private static string GetSelectedPath( IFileOpenDialog fileDialog )
{
string path;
IShellItem item;
fileDialog.GetResult( out item );
item.GetDisplayName( ShellItemDisplayName.FileSystemPath, out path );
Marshal.FinalReleaseComObject( item );
return path;
}
private static IFileOpenDialog CreateDialog()
{
Contract.Ensures( Contract.Result<IFileOpenDialog>() != null );
var options = FileDialogOptions.PickFolders | FileDialogOptions.ForceFileSystem | FileDialogOptions.PathMustExist;
var dialog = new IFileOpenDialog();
dialog.SetOptions( options );
return dialog;
}
