CmisSync.CmisTree.AsyncNodeLoader.Cancel C# (CSharp) Method

        public void Cancel()
        {
            this.worker.CancelAsync ();
            this.worker.Dispose ();
        }

        public override void AwakeFromNib ()
        {
            base.AwakeFromNib ();

            this.SideSplashView.Image = new NSImage (UIHelpers.GetImagePathname ("side-splash")) {
                Size = new SizeF (150, 482)
            };

            this.Header.StringValue = Properties_Resources.EditTitle;

            Repo = new RootFolder()
            {
                Name = FolderName,
                Id = Credentials.RepoId,
                Address = Credentials.Address.ToString()
            };
            Repo.Selected = true;
            IgnoredFolderLoader.AddIgnoredFolderToRootNode(Repo, Ignores);
            LocalFolderLoader.AddLocalFolderToRootNode(Repo, localPath);
            List<RootFolder> repos = new List<RootFolder>();
            repos.Add(Repo);

            Loader = new AsyncNodeLoader(Repo, Credentials, PredefinedNodeLoader.LoadSubFolderDelegate, PredefinedNodeLoader.CheckSubFolderDelegate);

            CancelButton.Title = Properties_Resources.DiscardChanges;
            FinishButton.Title = Properties_Resources.SaveChanges;

            DataDelegate = new OutlineViewDelegate ();
            DataSource = new CmisTree.CmisTreeDataSource(repos);
            Outline.DataSource = DataSource;
            Outline.Delegate = DataDelegate;

            this.AddressLabel.StringValue = Properties_Resources.CmisWebAddress;
            this.UserLabel.StringValue = Properties_Resources.User;
            this.PasswordLabel.StringValue = Properties_Resources.Password;

            this.AddressText.StringValue = Credentials.Address.ToString ();
            this.UserText.StringValue = Credentials.UserName;
            this.PasswordText.StringValue = Credentials.Password.ToString ();
            this.AddressText.Enabled = false;
            this.UserText.Enabled = false;
            this.LoginStatusProgress.IsDisplayedWhenStopped = false;
            this.LoginStatusLabel.Hidden = true;
            this.FolderTab.Label = Properties_Resources.AddingFolder;
            this.CredentialsTab.Label = Properties_Resources.Credentials;
            switch (this.type) {
            case EditType.EditFolder:
                TabView.SelectAt (0);
                break;
            case EditType.EditCredentials:
                TabView.SelectAt (1);
                break;
            default:
                TabView.SelectAt (0);
                break;
            }
            //  GUI workaround to remove ignore folder {{
            this.TabView.Remove (this.FolderTab);
            //  GUI workaround to remove ignore folder }}

            Controller.CloseWindowEvent += delegate
            {
                Loader.Cancel();
                this.Window.PerformClose (this);
                this.Dispose();
            };

            InsertEvent ();

            //  must be called after InsertEvent()
            Loader.Load(Repo);
            lock(loginLock)
                isClosed = false;

            OnPasswordChanged (this);
        }