/// <summary> /// Called when the dialog is opened. /// </summary> /// <param name="parameters">The parameters passed to the dialog.</param> public override void OnDialogOpened(IDialogParameters parameters) { base.OnDialogOpened(parameters); // Configure parameters if (parameters.TryGetValue(DialogParameterNames.Message, out string message)) { this.Message = message; } if (parameters.TryGetValue(DialogParameterNames.ButtonText, out string buttonText)) { this.ButtonText = buttonText; } }
/// <inheritdoc /> public override void OnDialogOpened(IDialogParameters parameters) { if (parameters != null && parameters.TryGetValue <Brand>(nameof(Brand), out var result)) { this.model.LoadBrand(result); } }
/// <inheritdoc /> public override void OnDialogOpened(IDialogParameters parameters) { if (parameters != null && parameters.TryGetValue <MessageDialogSettings>(nameof(MessageDialogSettings), out var result)) { this.model.LoadSettings(result); } }
void IDialogAware.OnDialogOpened(IDialogParameters parameters) { if (parameters.TryGetValue <string>("Path", out var file)) { this.Files.Add(file); } else { var interactionResult = this.interactionService.SelectFiles(FileDialogSettings.FromFilterString(new DialogFilterBuilder("*" + FileConstants.MsixExtension).BuildFilter()), out string[] selection); if (!interactionResult || !selection.Any()) { return; } foreach (var selected in selection) { if (this.Files.Contains(selected, StringComparer.OrdinalIgnoreCase)) { continue; } this.Files.Add(selected); } } this.Files.Commit(); }
public override void OnDialogOpened(IDialogParameters parameters) { if (parameters != null) { GraphInfo = parameters.GetValue <RoomLineGraphInfo>("model"); if (parameters.TryGetValue("id", out int reportId)) { TemperatureGraphInfo = RoomLineGraphInfo.CreateDefault(); HumidityGraphInfo = RoomLineGraphInfo.CreateDefault(); Task.Run(async() => { var collection = await _roomRepository.FilterRooms(reportId, GraphInfo.ActiveDevice.Id); if (collection.Count() > 0) { TemperatureGraphInfo = FillTemperatureModel(collection); HumidityGraphInfo = FillHumidityModel(collection); } }); } Title = $"{GraphInfo?.ActiveDevice?.Nick} {GraphInfo?.ActiveDevice?.IPAddress}"; InitializeAnnotations(); SetSettings(); } }
/// <inheritdoc /> public override void OnDialogOpened(IDialogParameters parameters) { if (parameters != null && parameters.TryGetValue <Product>(nameof(Product), out var result)) { this.model.LoadProduct(result); } }
public override void OnDialogOpened(IDialogParameters parameters) { parameters.TryGetValue("title", out string title); Title = title ?? "Confirmation"; Message = parameters.GetValue <string>("message"); var buttons = parameters.GetValue <string>("buttons"); if (string.IsNullOrEmpty(buttons)) { Button0Text = "Save"; Button1Text = "Don't save"; Button2Text = "Cancel"; } else { var b = buttons.Split(','); for (int i = 0; i < b.Length; i++) { if (i == 0) { Button0Text = b[i]; } if (i == 1) { Button1Text = b[i]; } if (i == 2) { Button2Text = b[i]; } } } }
public static void ShowMessageBox(this IDialogService _, IDialogParameters parameters, Action <IDialogResult> callback) { parameters.TryGetValue(DialogParams.Title, out string title); parameters.TryGetValue(DialogParams.Alert.Buttons, out DialogParams.Alert.AlertButtons buttons); parameters.TryGetValue(DialogParams.Alert.Image, out DialogParams.Alert.AlertImage image); parameters.TryGetValue(DialogParams.Alert.DefaultResult, out ButtonResult defaultResult); var dialogResult = new DialogResult(MessageBox.Show( parameters.GetValue <string>(DialogParams.Alert.Content), title, buttons.ToMessageBoxButton(), image.ToMessageBoxImage(), defaultResult.ToMessageBoxResult() ).ToButtonResult()); callback?.Invoke(dialogResult); }
public void OnDialogOpened(IDialogParameters parameters) { if (parameters.TryGetValue("yaml", out string yamlSelectedPath)) { this.yamlPath = Path.ChangeExtension(yamlSelectedPath, FileConstants.WingetExtension); #pragma warning disable 4014 this.GeneralProgress.MonitorProgress(this.Definition.LoadFromYaml(yamlSelectedPath)); } else if (parameters.TryGetValue("msix", out string msixPath)) { this.yamlPath = Path.ChangeExtension(Path.GetFileNameWithoutExtension(msixPath), FileConstants.WingetExtension); this.GeneralProgress.MonitorProgress(this.Definition.LoadFromFile(msixPath)); } else { this.GeneralProgress.MonitorProgress(this.Definition.NewManifest(CancellationToken.None)); } }
public void OnDialogOpened(IDialogParameters parameters) { if (!parameters.TryGetValue("file", out string sourceFile)) { return; } this.SourcePath.CurrentValue = sourceFile; this.TabProperties.Commit(); this.TabParentPackage.Commit(); }
/// <summary> /// Return a value from dialog /// </summary> /// <param name="dialogResult"></param> /// <param name="value">output parameter</param> /// <typeparam name="TValue">Value to return</typeparam> /// <returns>Returns a parameter from the IDialogResult. The key is TValue name.</returns> public static bool TryGetDialogParameter <TValue>(this IDialogParameters dialogResult, out TValue value) { if (dialogResult.TryGetValue(typeof(TValue).Name, out value)) { return(true); } value = default; return(false); }
/// <summary> /// Called when the dialog is opened. /// </summary> /// <param name="parameters">The parameters passed to the dialog.</param> public override void OnDialogOpened(IDialogParameters parameters) { base.OnDialogOpened(parameters); // Subscribe event this.eventAggregator.GetEvent <FileSelectionEvent>().Subscribe(this.OnFileSelection); this.eventAggregator.GetEvent <MoveCurrentFolderEvent>().Subscribe(this.OnMoveCurrentFolder); // Configure parameters if (parameters.TryGetValue(DialogParameterNames.FolderNamePrefixText, out string folderNamePrefixText)) { this.FolderNamePrefixText = folderNamePrefixText; } if (parameters.TryGetValue(DialogParameterNames.SelectButtonText, out string selectButtonText)) { this.SelectButtonText = selectButtonText; } if (parameters.TryGetValue(DialogParameterNames.CancelButtonText, out string cancelButtonText)) { this.CancelButtonText = cancelButtonText; } var regionContext = ExplorerBaseRegionContext.CreateForSingleFolderSelect(); if (parameters.TryGetValue(DialogParameterNames.TextResource, out ExplorerBaseTextResource textResource)) { regionContext.TextResource = textResource; } if (parameters.TryGetValue(DialogParameterNames.CanMultiSelect, out bool canMultiSelect)) { regionContext.CanMultiSelect = canMultiSelect; } if (parameters.TryGetValue(DialogParameterNames.RootFolders, out IEnumerable <string> rootFolders)) { regionContext.RootFolders = rootFolders; } this.RegionContext = regionContext; }
void IDialogAware.OnDialogOpened(IDialogParameters parameters) { if (parameters.TryGetValue <string>("Path", out var file)) { this.Files.Add(file); } else { return; } this.Files.Commit(); }
public void OnDialogOpened(IDialogParameters parameters) { var hasToken = parameters.TryGetValue <CancellationTokenSource>( ScanningWifiParams.CancellationTokenSource, out var cancellationToken); if (hasToken) { _tokenSource = cancellationToken; } _id = parameters.GetValue <Guid>(ScanningWifiParams.Identifier); }
/// <summary> /// Called when the dialog is opened. /// </summary> /// <param name="parameters">The parameters passed to the dialog.</param> public override void OnDialogOpened(IDialogParameters parameters) { base.OnDialogOpened(parameters); // Subscribe event this.eventAggregator.GetEvent <FileSelectionEvent>().Subscribe(this.OnFileSelection); this.eventAggregator.GetEvent <MoveCurrentFolderEvent>().Subscribe(this.OnMoveCurrentFolder); this.eventAggregator.GetEvent <FileEnterEvent>().Subscribe(this.OnFileEnter); // Configure parameters if (parameters.TryGetValue(DialogParameterNames.FileNamePrefixText, out string fileNamePrefixText)) { this.FileNamePrefixText = fileNamePrefixText; } if (parameters.TryGetValue(DialogParameterNames.SelectButtonText, out string selectButtonText)) { this.SelectButtonText = selectButtonText; } if (parameters.TryGetValue(DialogParameterNames.CancelButtonText, out string cancelButtonText)) { this.CancelButtonText = cancelButtonText; } this.filters.Clear(); if (parameters.TryGetValue(DialogParameterNames.Filters, out IEnumerable <FileFilter> filters)) { this.filters.AddRange(filters); } else { var filter = parameters.TryGetValue(DialogParameterNames.DefaultAllFilesFilterText, out string filterText) ? new FileFilter(filterText) : FileFilter.CreateDefault(); this.filters.Add(filter); } this.selectedFilter = this.Filters.First(); var regionContext = ExplorerBaseRegionContext.CreateForSingleFileSelect(); if (parameters.TryGetValue(DialogParameterNames.TextResource, out ExplorerBaseTextResource textResource)) { regionContext.TextResource = textResource; } if (parameters.TryGetValue(DialogParameterNames.CanMultiSelect, out bool canMultiSelect)) { regionContext.CanMultiSelect = canMultiSelect; } if (parameters.TryGetValue(DialogParameterNames.RootFolders, out IEnumerable <string> rootFolders)) { regionContext.RootFolders = rootFolders; } regionContext.FileExtensions = this.Filters.First().Extensions; this.RegionContext = regionContext; }
public void OnDialogOpened(IDialogParameters parameters) { if (parameters is null) { throw new ArgumentNullException(nameof(parameters)); } if (parameters.TryGetValue(nameof(Lamp), out Lamp lamp)) { this.Lamp = lamp; } else { RequestClose(new DialogResult()); } }
/// <summary> /// Called when the dialog is opened. /// </summary> /// <param name="parameters">The parameters passed to the dialog.</param> public virtual void OnDialogOpened(IDialogParameters parameters) { // Configure parameters if (parameters.TryGetValue(DialogParameterNames.Title, out string title)) { this.Title = title; } if (parameters.TryGetValue(DialogParameterNames.StartupLoaction, out WindowStartupLocation startupLoaction)) { this.StartupLocation = startupLoaction; } if (parameters.TryGetValue(DialogParameterNames.ResizeMode, out ResizeMode resizeMode)) { this.ResizeMode = resizeMode; } if (parameters.TryGetValue(DialogParameterNames.SizeToContent, out SizeToContent sizeToContent)) { this.SizeToContent = sizeToContent; } if (parameters.TryGetValue(DialogParameterNames.WindowStyle, out Style windwoStyle)) { this.WindowStyle = windwoStyle; } if (parameters.TryGetValue(DialogParameterNames.Width, out double width)) { this.Width = width; } if (parameters.TryGetValue(DialogParameterNames.Height, out double height)) { this.Height = height; } if (parameters.TryGetValue(DialogParameterNames.ContentWidth, out double contentWidth)) { this.ContentWidth = contentWidth; } if (parameters.TryGetValue(DialogParameterNames.ContentHeight, out double contentHeight)) { this.ContentHeight = contentHeight; } }
public override void OnDialogOpened(IDialogParameters parameters) { if (parameters != null) { bool setSetting = true; _current = parameters.GetValue <MultiRoomLineGraphInfo>("model"); GraphInfo = _current; var title = $"{_current?.ActiveDevice?.Nick} {_current?.ActiveDevice?.IPAddress}"; Title = title; if (parameters.TryGetValue("date", out DateTimeSpanFilter date)) { setSetting = false; Task.Run(async() => { var collection = await _multiRoomRepository.FilterRooms(_current.ActiveDevice.IPAddress, date.FromDate, date.ToDate); GraphInfo = new MultiRoomLineGraphInfo(GraphInfo.ActiveDevice, false); GraphInfo.GraphLineModelForDefault = InitializeDefault(collection, 1); GraphInfo.GraphLineModelForMiddle = InitializeDefault(collection, 2); GraphInfo.GraphLineModelForProcessForNord = InitializeDefault(collection, 3); GraphInfo.GraphLineModelForProcess = InitializeDefault(collection, 4); _multiGraphMouseWheelHandler.Add(new MultiGraphMouseWheelHandler { Model = GraphInfo.GraphLineModelForDefault, Code = 1 }); _multiGraphMouseWheelHandler.Add(new MultiGraphMouseWheelHandler { Model = GraphInfo.GraphLineModelForMiddle, Code = 2 }); _multiGraphMouseWheelHandler.Add(new MultiGraphMouseWheelHandler { Model = GraphInfo.GraphLineModelForProcessForNord, Code = 3 }); _multiGraphMouseWheelHandler.Add(new MultiGraphMouseWheelHandler { Model = GraphInfo.GraphLineModelForProcess, Code = 4 }); }); } if (setSetting) { SetSettings(); } } }
public void OnDialogOpened(IDialogParameters parameters) { if (parameters.TryGetValue("file", out string sourceFile)) { var ext = Path.GetExtension(sourceFile) ?? string.Empty; switch (ext.ToLowerInvariant()) { case FileConstants.AppInstallerExtension: this.OpenCommand.Execute(sourceFile); break; default: this.TabPackage.InputPath.CurrentValue = sourceFile; this.TabPackage.AllowChangingSourcePackage = false; this.TabPackage.ShowPackageTypeSelector = false; break; } } }
public void OnDialogOpened(IDialogParameters parameters) { var firstParam = parameters.Keys.FirstOrDefault(); if (firstParam == null) { return; } if (!parameters.TryGetValue(firstParam, out string packagePath)) { return; } this.FilePath = packagePath; this.OnPropertyChanged(nameof(FilePath)); this.Title = Path.GetFileName(this.FilePath); this.OnPropertyChanged(nameof(Title)); this.CheckIsInstalled(); }
public override void OnDialogOpened(IDialogParameters parameters) { if (parameters != null) { GraphInfo = parameters.GetValue <RoomLineGraphInfo>("model"); TemperatureGraphInfo = RoomLineGraphInfo.CreateDefault(); TemperatureGraphInfo.GraphLineModel = ViewResolvingPlotModel.CreateDefault(18, 60); HumidityGraphInfo = RoomLineGraphInfo.CreateDefault(); HumidityGraphInfo.GraphLineModel = ViewResolvingPlotModel.CreateDefault(45, 75); TemperatureGraphInfo.GraphLineModel.GetLast().IsVisible = false; HumidityGraphInfo.GraphLineModel.GetFirst().IsVisible = false; GraphInfo.AddToCollectionEvent += Current_AddToCollectionEvent; Title = $"{GraphInfo?.ActiveDevice?.Nick} {GraphInfo?.ActiveDevice?.IPAddress}"; var points = _roomRepository.FilterRooms(GraphInfo.ActiveDevice.Id).GetAwaiter().GetResult(); FillTemperatureGraph(points); FillHumidityGraph(points); InitializeAnnotations(); SetSettings(); if (parameters.TryGetValue("dataType", out int value)) { if (value == 2) { TemperatureText += " Мид"; } if (value == 3) { TemperatureText += " Норд"; } if (value == 4) { TemperatureText += " Процесс"; } } } }
public void OnDialogOpened(IDialogParameters parameters) { if (parameters.TryGetValue("ShareInfo", out _issue)) { RaisePropertyChanged(nameof(Issue)); RaisePropertyChanged(nameof(Banks)); Title = $"{Issue.CompanyName} ({Issue.Action})"; SelectedBank = Banks?.FirstOrDefault(); Boid = _client.Me.Demat; Branch = BankDetails.BranchName; AccountNumber = BankDetails.AccountNumber; var disclaimer = _client.GetPurchaseDisclaimer(); Disclaimer = disclaimer?.FieldValue; } else { RequestClose?.Invoke(new DialogResult(ButtonResult.Abort)); return; } }
/// <summary> /// Called when the dialog is opened. /// </summary> /// <param name="parameters">The parameters passed to the dialog.</param> public override void OnDialogOpened(IDialogParameters parameters) { base.OnDialogOpened(parameters); // Configure parameters if (!parameters.TryGetValue(DialogParameterNames.ExplorerIcons, out ExplorerIcons explorerIcons)) { return; } if (explorerIcons.BackWardIcon != null) { this.BackWardIcon = explorerIcons.BackWardIcon; } if (explorerIcons.ForwardIcon != null) { this.ForwardIcon = explorerIcons.ForwardIcon; } if (explorerIcons.UpIcon != null) { this.UpIcon = explorerIcons.UpIcon; } if (explorerIcons.ReloadIcon != null) { this.ReloadIcon = explorerIcons.ReloadIcon; } if (explorerIcons.FolderClosedIcon != null) { this.FolderClosedIcon = explorerIcons.FolderClosedIcon; } if (explorerIcons.FolderOpenedIcon != null) { this.FolderOpenedIcon = explorerIcons.FolderOpenedIcon; } if (explorerIcons.FileIcon != null) { this.FileIcon = explorerIcons.FileIcon; } }
public void ShowDialog(string name, IDialogParameters parameters, Action <IDialogResult> callback) { try { parameters = UriParsingHelper.GetSegmentParameters(name, parameters); var view = CreateViewFor(UriParsingHelper.GetSegmentName(name)); var dialogAware = InitializeDialog(view, parameters); var currentPage = GetCurrentPage(); dialogAware.RequestClose += DialogAware_RequestClose; void DialogAware_RequestClose(IDialogParameters outParameters) { try { var result = CloseDialog(outParameters ?? new DialogParameters(), currentPage); if (result.Exception is DialogException de && de.Message == DialogException.CanCloseIsFalse) { return; } dialogAware.RequestClose -= DialogAware_RequestClose; callback?.Invoke(result); GC.Collect(); } catch (DialogException dex) { if (dex.Message != DialogException.CanCloseIsFalse) { callback?.Invoke(new DialogResult { Exception = dex, Parameters = parameters }); } } catch (Exception ex) { callback?.Invoke(new DialogResult { Exception = ex, Parameters = parameters }); } } if (!parameters.TryGetValue <bool>(KnownDialogParameters.CloseOnBackgroundTapped, out var closeOnBackgroundTapped)) { var dialogLayoutCloseOnBackgroundTapped = DialogLayout.GetCloseOnBackgroundTapped(view); if (dialogLayoutCloseOnBackgroundTapped.HasValue) { closeOnBackgroundTapped = dialogLayoutCloseOnBackgroundTapped.Value; } } InsertPopupViewInCurrentPage(currentPage as ContentPage, view, closeOnBackgroundTapped, DialogAware_RequestClose); PageUtilities.InvokeViewAndViewModelAction <IActiveAware>(currentPage, aa => aa.IsActive = false); PageUtilities.InvokeViewAndViewModelAction <IActiveAware>(view, aa => aa.IsActive = true); } catch (Exception ex) { var error = ex.ToString(); callback?.Invoke(new DialogResult { Exception = ex }); } }
public static string GetTitle(this IDialogParameters value) { value.TryGetValue("Title", out string output); return(output); }
public static bool GetRememberPassword(this IDialogParameters value) { value.TryGetValue("RememberPassword", out bool output); return(output); }
public static string GetPassword(this IDialogParameters value) { value.TryGetValue("Password", out string output); return(output); }
public void OnDialogOpened(IDialogParameters parameters) { parameters.TryGetValue("id", out string id); parameters.TryGetValue("password", out string password); Debug.WriteLine($" id:{id}, password:{password}"); }
/// <inheritdoc /> public void ShowDialog(string name, IDialogParameters parameters, Action <IDialogResult> callback) { try { parameters = UriParsingHelper.GetSegmentParameters(name, parameters); var view = CreateViewFor(UriParsingHelper.GetSegmentName(name)); var popupPage = CreatePopupPageForView(view); var dialogAware = InitializeDialog(view, parameters); if (!parameters.TryGetValue <bool>(KnownDialogParameters.CloseOnBackgroundTapped, out var closeOnBackgroundTapped)) { var dialogLayoutCloseOnBackgroundTapped = DialogLayout.GetCloseOnBackgroundTapped(view); if (dialogLayoutCloseOnBackgroundTapped.HasValue) { closeOnBackgroundTapped = dialogLayoutCloseOnBackgroundTapped.Value; } } if (!parameters.TryGetValue <bool>(KnownPopupDialogParameters.Animated, out var animated)) { animated = true; } var popupDialogLayoutIsAnimationEnabled = PopupDialogLayout.GetIsAnimationEnabled(view); popupPage.IsAnimationEnabled = popupDialogLayoutIsAnimationEnabled ?? true; dialogAware.RequestClose += DialogAware_RequestClose; void CloseOnBackgroundClicked(object sender, EventArgs args) { DialogAware_RequestClose(new DialogParameters()); } void DialogAware_RequestClose(IDialogParameters outParameters) { try { var result = CloseDialog(outParameters ?? new DialogParameters(), popupPage, view); if (result.Exception is DialogException de && de.Message == DialogException.CanCloseIsFalse) { return; } dialogAware.RequestClose -= DialogAware_RequestClose; if (closeOnBackgroundTapped) { popupPage.BackgroundClicked -= CloseOnBackgroundClicked; } callback?.Invoke(result); GC.Collect(); } catch (DialogException dex) { if (dex.Message != DialogException.CanCloseIsFalse) { callback?.Invoke(new DialogResult { Exception = dex, Parameters = parameters }); } } catch (Exception ex) { callback?.Invoke(new DialogResult { Exception = ex, Parameters = parameters }); } } if (closeOnBackgroundTapped) { popupPage.BackgroundClicked += CloseOnBackgroundClicked; } Action <IDialogParameters> closeCallback = closeOnBackgroundTapped ? DialogAware_RequestClose : p => { }; PushPopupPage(popupPage, view, closeCallback, animated); } catch (Exception ex) { callback?.Invoke(new DialogResult { Exception = ex }); } }
/// <summary> /// Called when the dialog is opened. /// </summary> /// <param name="parameters">The parameters passed to the dialog.</param> public override void OnDialogOpened(IDialogParameters parameters) { base.OnDialogOpened(parameters); // Subscribe event this.eventAggregator.GetEvent <FileSelectionEvent>().Subscribe(this.OnFileSelection); this.eventAggregator.GetEvent <MoveCurrentFolderEvent>().Subscribe(this.OnMoveDisplayFolder); this.eventAggregator.GetEvent <FileEnterEvent>().Subscribe(this.OnFileEnter); // Configure parameters if (parameters.TryGetValue(DialogParameterNames.FileNamePrefixText, out string fileNamePrefixText)) { this.FileNamePrefixText = fileNamePrefixText; } if (parameters.TryGetValue(DialogParameterNames.FileTypePrefixText, out string fileTypePrefixText)) { this.FileTypePrefixText = fileTypePrefixText; } if (parameters.TryGetValue(DialogParameterNames.SaveButtonText, out string saveButtonText)) { this.SaveButtonText = saveButtonText; } if (parameters.TryGetValue(DialogParameterNames.CancelButtonText, out string cancelButtonText)) { this.CancelButtonText = cancelButtonText; } if (parameters.TryGetValue(DialogParameterNames.DefaultSaveFileName, out string defaultSaveFileName)) { this.SaveFileName = defaultSaveFileName; } this.filters.Clear(); if (parameters.TryGetValue(DialogParameterNames.Filters, out IEnumerable <FileFilter> filters)) { this.filters.AddRange(filters); } else { var filter = parameters.TryGetValue(DialogParameterNames.DefaultAllFilesFilterText, out string filterText) ? new FileFilter(filterText) : FileFilter.CreateDefault(); this.filters.Add(filter); } this.selectedFilter = this.Filters.First(); if (parameters.TryGetValue(DialogParameterNames.OverwriteConfirmationTitle, out string overwriteConfirmationTitle)) { this.OverwriteConfirmationTitle = overwriteConfirmationTitle; } if (parameters.TryGetValue(DialogParameterNames.OverwriteConfirmationMessageFunc, out Func <string, string> overwriteConfirmationMessageFunc)) { this.OverwriteConfirmationMessageFunc = overwriteConfirmationMessageFunc; } if (parameters.TryGetValue(DialogParameterNames.OverwriteConfirmationOKButtonText, out string overwriteConfirmationOKButtonText)) { this.OverwriteConfirmationOKButtonText = overwriteConfirmationOKButtonText; } if (parameters.TryGetValue(DialogParameterNames.OverwriteConfirmationCancelButtonText, out string overwriteConfirmationCancelButtonText)) { this.OverwriteConfirmationCancelButtonText = overwriteConfirmationCancelButtonText; } var regionContext = ExplorerBaseRegionContext.CreateForSingleFileSelect(); if (parameters.TryGetValue(DialogParameterNames.TextResource, out ExplorerBaseTextResource textResource)) { regionContext.TextResource = textResource; } if (parameters.TryGetValue(DialogParameterNames.RootFolders, out IEnumerable <string> rootFolders)) { regionContext.RootFolders = rootFolders; } regionContext.FileExtensions = this.Filters.First().Extensions; this.RegionContext = regionContext; }