private void SetNativeDialogProperties(NativeFileOpenDialog nativeFileOpenDialog)
{
//Set Title
if (!string.IsNullOrEmpty(m_Title))
{
nativeFileOpenDialog.SetTitle(m_Title);
}
//Set Folder
if (!string.IsNullOrEmpty(m_FolderPath))
{
if (System.IO.Directory.Exists(m_FolderPath))
{
nativeFileOpenDialog.SetFolder(CreateShellItemFromParsingName(m_FolderPath));
}
else
{
string parent = System.IO.Path.GetDirectoryName(m_FolderPath);
if (parent != null && System.IO.Directory.Exists(parent))
{
string folder = System.IO.Path.GetFileName(m_FolderPath);
nativeFileOpenDialog.SetFolder(CreateShellItemFromParsingName(parent));
nativeFileOpenDialog.SetFileName(folder);
}
}
}
//Apply option bitflags
nativeFileOpenDialog.SetOptions(GetNativeDialogFlags());
}
public DialogResult ShowDialog()
{
NativeFileOpenDialog dialog = null;
try
{
// If the caller did not specify a starting path, or set it to null,
// it is not healthy as it causes SHCreateItemFromParsingName to
// throw E_INVALIDARG (0x80070057). Setting it to an empty string.
//
if (SelectedPath == null)
{
SelectedPath = string.Empty;
}
dialog = new NativeFileOpenDialog();
dialog.SetTitle(Title);
object shellItem;
// IShellItem GUID
Guid guid = new Guid("43826D1E-E718-42EE-BC55-A1E261C37BFE");
int hresult = SHCreateItemFromParsingName(SelectedPath, IntPtr.Zero, ref guid, out shellItem);
if ((uint)hresult != (uint)HRESULT.S_OK)
{
throw Marshal.GetExceptionForHR(hresult);
}
dialog.SetFolder((IShellItem)shellItem);
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM | FOS.FOS_FILEMUSTEXIST);
IntPtr hWnd = new WindowInteropHelper(Owner).Handle;
hresult = dialog.Show(hWnd);
if (hresult < 0)
{
if ((uint)hresult == (uint)HRESULT.E_CANCELLED)
{
return(DialogResult.Cancel);
}
throw Marshal.GetExceptionForHR(hresult);
}
string path;
IShellItem item;
dialog.GetResult(out item);
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
SelectedPath = path;
return(DialogResult.OK);
}
finally
{
if (dialog != null)
{
Marshal.FinalReleaseComObject(dialog);
}
}
}
public DialogResult ShowDialog()
{
NativeFileOpenDialog dialog = null;
try
{
// If the caller did not specify a starting path, or set it to null,
// it is not healthy as it causes SHCreateItemFromParsingName to
// throw E_INVALIDARG (0x80070057). Setting it to an empty string.
//
if (SelectedPath == null)
SelectedPath = string.Empty;
dialog = new NativeFileOpenDialog();
dialog.SetTitle(Title);
object shellItem;
// IShellItem GUID
Guid guid = new Guid("43826D1E-E718-42EE-BC55-A1E261C37BFE");
int hresult = SHCreateItemFromParsingName(SelectedPath, IntPtr.Zero, ref guid, out shellItem);
if ((uint)hresult != (uint)HRESULT.S_OK)
throw Marshal.GetExceptionForHR(hresult);
dialog.SetFolder((IShellItem)shellItem);
dialog.SetOptions(FOS.FOS_PICKFOLDERS | FOS.FOS_FORCEFILESYSTEM | FOS.FOS_FILEMUSTEXIST);
IntPtr hWnd = new WindowInteropHelper(Owner).Handle;
hresult = dialog.Show(hWnd);
if (hresult < 0)
{
if ((uint)hresult == (uint)HRESULT.E_CANCELLED)
return DialogResult.Cancel;
throw Marshal.GetExceptionForHR(hresult);
}
string path;
IShellItem item;
dialog.GetResult(out item);
item.GetDisplayName(SIGDN.SIGDN_FILESYSPATH, out path);
SelectedPath = path;
return DialogResult.OK;
}
finally
{
if (dialog != null)
Marshal.FinalReleaseComObject(dialog);
}
}