コード例 #1
0
ファイル: DialogModel.cs プロジェクト: pvpxan/StreamlineMVVM
        public DialogWindowView(DialogViewModel dialogViewModel, Window window)
        {
            if (window == null || window.DataContext != dialogViewModel)
            {
                return;
            }

            DialogWindow    = window;
            WindowViewModel = dialogViewModel;

            IsValid = true;
        }
コード例 #2
0
ファイル: DialogModel.cs プロジェクト: pvpxan/StreamlineMVVM
        public DialogUserControlView(DialogViewModel dialogViewModel, UserControl userControl)
        {
            if (userControl == null || dialogViewModel == null)
            {
                return;
            }

            if (userControl.DataContext != dialogViewModel)
            {
                userControl.DataContext = dialogViewModel;
            }

            BaseDialogWindowView      = new DialogBaseWindow(userControl, dialogViewModel);
            UserControlView           = userControl;
            BaseDialogWindowViewModel = dialogViewModel;

            IsValid = true;
        }
コード例 #3
0
        public DialogBaseWindow(UserControl userControl, DialogViewModel dialogViewModel)
        {
            try
            {
                pDialogViewModel = dialogViewModel;
                this.DataContext = dialogViewModel;

                InitializeComponent();

                try
                {
                    // These are some conditions that are needed for everything to work correctly.
                    if (userControl == null || userControl.DataContext != dialogViewModel)
                    {
                        // NOTE: This will cause the following suppressed error that only shows in debugger output:
                        // 'System.InvalidOperationException' in PresentationFramework.dll
                        // This happens since the window is already closed before a Show() or ShowDialog() method can actually do anything.
                        this.Close();
                        return;
                    }
                }
                catch (Exception Ex)
                {
                    LogMVVM.Exception("MVVM Exception: Dialog Window user control and data context check error.", Ex);
                }

                try
                {
                    if (dialogViewModel.Data.WindowIconURI.Length > 0)
                    {
                        Icon = BitmapFrame.Create(new Uri(dialogViewModel.Data.WindowIconURI, UriKind.RelativeOrAbsolute));
                    }
                }
                catch (Exception Ex)
                {
                    LogMVVM.Exception("MVVM Exception: Dialog Window title bar icon creation error.", Ex);
                }

                // General Window properties. Not bound since some are not technically content and one is not able to be bound.
                WindowStartupLocation = dialogViewModel.Data.DialogStartupLocation; // Cannot be bound since it is a DependencyProperty
                WindowStyle           = dialogViewModel.Data.DialogWindowStyle;
                Topmost    = dialogViewModel.Data.Topmost;
                Title      = dialogViewModel.Data.WindowTitle;
                Background = dialogViewModel.Data.Background;

                // Adds the user control to the window.
                this.dialogBaseWindowGrid.Children.Add(userControl);

                // If there is a specified control to focus, this will process that.
                FocusElementControl(dialogViewModel.Data.FocusUIElement);

                Loaded          += contentLoaded;
                ContentRendered += contentRendered;
                Closing         += windowClosing;
                dialogViewModel.Events.CloseDialogHandler += closeDialog;
                dialogViewModel.Events.SendMessageHandler += openWindowMessage;
            }
            catch (Exception Ex)
            {
                MessageBox.Show(this, "Window load error: " + Environment.NewLine + Convert.ToString(Ex), "Error...", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }
コード例 #4
0
        // Primary method for opening a dialog.
        private static WindowMessageResult openDialogWork(Window dialogWindow, DialogViewModel dialogWindowViewModel, Window parentWindow, ShutdownMode shutdownMode)
        {
            bool applicationUIThreadAccess = CheckApplicationUIThreadAccess();

            if (applicationUIThreadAccess && shutdownMode != CurrentApplicationShutdownMode())
            {
                // Param shutdownMode can used to prevent the Application.Current from going null. It can be turned off by setting ApplicationExplicitShutdown.
                // This should not throw. Possible investigation should be made to check on this.
                Application.Current.ShutdownMode = shutdownMode;
            }

            // We need to find a dispatcher to display this message.
            Dispatcher dispatcher = null;

            if (parentWindow == null && applicationUIThreadAccess == false)
            {
                return(WindowMessageResult.Undefined);
            }
            else if (parentWindow == null && applicationUIThreadAccess)
            {
                try
                {
                    dialogWindow.Owner = Application.Current.Windows.OfType <Window>().FirstOrDefault(x => x.IsActive);
                }
                catch (Exception Ex)
                {
                    LogMVVM.Exception("MVVM Exception: Dialog Service error when trying to get window owner.", Ex);
                    // This should not throw. Possible investigation should be made to check on this.
                    if (Application.Current.Windows.Count > 0)
                    {
                        dialogWindow.Owner = Application.Current.Windows[0];
                    }
                    else
                    {
                        dialogWindow.Owner = null;
                    }
                }


                if (dialogWindow.Owner == null)
                {
                    dispatcher = Application.Current.Dispatcher;
                }
                else
                {
                    dispatcher = dialogWindow.Owner.Dispatcher;
                }
            }
            else // This should ONLY happen if parentWindow is NOT null.
            {
                dialogWindow.Owner = parentWindow;
                dispatcher         = parentWindow.Dispatcher;
            }

            try
            {
                if (dispatcher.CheckAccess() == false)
                {
                    return(WindowMessageResult.Undefined);
                }

                WindowMessageResult result = WindowMessageResult.Undefined;
                dispatcher.Invoke((Action) delegate
                {
                    dialogWindow.ShowDialog();

                    result = dialogWindowViewModel.Result;
                });

                return(result);
            }
            catch (Exception Ex)
            {
                LogMVVM.Exception("MVVM Exception: Dialog service error when opening dialog window.", Ex);
                return(WindowMessageResult.Undefined);
            }
        }