private void SetDialogProperties(Interop.IFileDialog dialog)
{
// Description
if (!string.IsNullOrEmpty(_description))
{
if (_useDescriptionForTitle)
{
dialog.SetTitle(_description);
}
else
{
Interop.IFileDialogCustomize customize = (Interop.IFileDialogCustomize)dialog;
customize.AddText(0, _description);
}
}
dialog.SetOptions(NativeMethods.FOS.FOS_PICKFOLDERS | NativeMethods.FOS.FOS_FORCEFILESYSTEM | NativeMethods.FOS.FOS_FILEMUSTEXIST);
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(NativeMethods.CreateItemFromParsingName(parent));
dialog.SetFileName(folder);
}
}
}
private bool RunFileDialog(IntPtr hwndOwner)
{
_hwndOwner = hwndOwner;
Interop.IFileDialog dialog = null;
try
{
dialog = CreateFileDialog();
SetDialogProperties(dialog);
int result = dialog.Show(hwndOwner);
if (result < 0)
{
if (result == (int)HRESULT.ERROR_CANCELLED)
{
return(false);
}
else
{
throw System.Runtime.InteropServices.Marshal.GetExceptionForHR(result);
}
}
return(true);
}
finally
{
_hwndOwner = IntPtr.Zero;
if (dialog != null)
{
System.Runtime.InteropServices.Marshal.FinalReleaseComObject(dialog);
}
}
}
/// <summary>
/// Specifies a common dialog box.
/// </summary>
/// <param name="hwndOwner">A value that represents the window handle of the owner window for the common dialog box.</param>
/// <returns><see langword="true" /> if the file could be opened; otherwise, <see langword="false" />.</returns>
protected override bool RunDialog(IntPtr hwndOwner)
{
if (_downlevelDialog != null)
{
return(_downlevelDialog.ShowDialog(hwndOwner == IntPtr.Zero ? null : new WindowHandleWrapper(hwndOwner)) == DialogResult.OK);
}
Interop.IFileDialog dialog = null;
try
{
dialog = new Interop.NativeFileOpenDialog();
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 CheckSelectedFolder(Interop.IFileDialog pfd, Interop.IShellItem psiFolder)
{
//
NativeMethods.SFGAOF fileSystemFlags = 0;
psiFolder.GetAttributes(NativeMethods.SFGAOF.SFGAO_FILESYSTEM, out fileSystemFlags);
if (fileSystemFlags != 0)
{
// A filesystem folder, but is it valid?
string path;
psiFolder.GetDisplayName(NativeMethods.SIGDN.SIGDN_FILESYSPATH, out path);
if (IsShortcut(path))
{
path = ResolveShortcut(path);
}
//Console.WriteLine("filesyspath path: {0}", path);
_dialog.DoFolderSelected(path);
}
else
{
// Not a filesystem, let the user know
_dialog.DoFolderSelected("");
}
}
private void GetResult(Interop.IFileDialog dialog)
{
Interop.IShellItem item;
dialog.GetResult(out item);
item.GetDisplayName(NativeMethods.SIGDN.SIGDN_FILESYSPATH, out _selectedPath);
}
private void CheckSelectedFolder(Interop.IFileDialog pfd)
{
Interop.IShellItem psiFolder;
pfd.GetCurrentSelection(out psiFolder);
CheckSelectedFolder(pfd, psiFolder);
}
public void OnFolderChange(Interop.IFileDialog pfd)
{
//CheckSelectedFolder(pfd);
}
public void OnSelectionChange(Interop.IFileDialog pfd)
{
CheckSelectedFolder(pfd);
}
public Interop.HRESULT OnFolderChanging(Interop.IFileDialog pfd, Interop.IShellItem psiFolder)
{
//CheckSelectedFolder(psiFolder);
return(Interop.HRESULT.S_OK);
}
public Interop.HRESULT OnFileOk(Interop.IFileDialog pfd)
{
// [seanba] - We could put extra validation here to stop dialog from closing.
return(Interop.HRESULT.S_OK);
}
public void OnOverwrite(Interop.IFileDialog pfd, Interop.IShellItem psi, out NativeMethods.FDE_OVERWRITE_RESPONSE pResponse)
{
pResponse = NativeMethods.FDE_OVERWRITE_RESPONSE.FDEOR_DEFAULT;
}
public void OnTypeChange(Interop.IFileDialog pfd)
{
}
public void OnShareViolation(Interop.IFileDialog pfd, Interop.IShellItem psi, out NativeMethods.FDE_SHAREVIOLATION_RESPONSE pResponse)
{
pResponse = NativeMethods.FDE_SHAREVIOLATION_RESPONSE.FDESVR_DEFAULT;
}