public HResult OnFolderChanging(IFileDialog pfd, IShellItem psiFolder)
{
CommonFileDialogFolderChangeEventArgs args = new CommonFileDialogFolderChangeEventArgs(
CommonFileDialog.GetFileNameFromShellItem(psiFolder));
if (!firstFolderChanged) { parent.OnFolderChanging(args); }
return (args.Cancel ? HResult.False : HResult.Ok);
}
/// <summary>
/// Raises the <see cref="FolderChanging"/> to stop navigation to a particular location.
/// </summary>
/// <param name="e">Cancelable event arguments.</param>
protected virtual void OnFolderChanging(CommonFileDialogFolderChangeEventArgs e)
{
EventHandler<CommonFileDialogFolderChangeEventArgs> handler = FolderChanging;
if (handler != null)
{
handler(this, e);
}
}