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KebooKeboo
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Wpf example (#666)
* Initial checkin of code from stream * Cleaning up example code * Updating to leverage PocketView DSL
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‎samples/connect-wpf/App.xaml‎

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<Application x:Class="WpfConnect.App"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:local="clr-namespace:WpfConnect"
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StartupUri="MainWindow.xaml">
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<Application.Resources>
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</Application.Resources>
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</Application>

‎samples/connect-wpf/App.xaml.cs‎

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using Microsoft.DotNet.Interactive;
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using Microsoft.DotNet.Interactive.Commands;
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using Microsoft.DotNet.Interactive.CSharp;
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using Microsoft.DotNet.Interactive.Server;
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using System.CommandLine;
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using System.CommandLine.Invocation;
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using System.IO;
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using System.Threading.Tasks;
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using System.Windows;
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namespace WpfConnect
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{
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/// <summary>
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/// Interaction logic for App.xaml
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/// </summary>
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public partial class App : Application
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{
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private CompositeKernel _Kernel;
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private const string NamedPipeName = "InteractiveWpf";
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private bool RunOnDispatcher { get; set; }
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protected override void OnStartup(StartupEventArgs e)
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{
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base.OnStartup(e);
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_Kernel = new CompositeKernel();
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_Kernel.UseLog();
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AddDispatcherCommand(_Kernel);
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CSharpKernel csharpKernel = RegisterCSharpKernel();
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_ = Task.Run(async () =>
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{
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//Load WPF app assembly
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await csharpKernel.SendAsync(new SubmitCode(@$"#r ""{typeof(App).Assembly.Location}""
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using {nameof(WpfConnect)};"));
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//Add the WPF app as a variable that can be accessed
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await csharpKernel.SetVariableAsync("App", this);
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//Start named pipe
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_Kernel.UseNamedPipeKernelServer(NamedPipeName, new DirectoryInfo("."));
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});
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}
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protected override void OnExit(ExitEventArgs e)
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{
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_Kernel?.Dispose();
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base.OnExit(e);
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}
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private void AddDispatcherCommand(Kernel kernel)
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{
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var dispatcherCommand = new Command("#!dispatcher", "Enable or disable running code on the Dispatcher")
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{
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new Option<bool>("--enabled", getDefaultValue:() => true)
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};
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dispatcherCommand.Handler = CommandHandler.Create<bool>(enabled =>
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{
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RunOnDispatcher = enabled;
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});
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kernel.AddDirective(dispatcherCommand);
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}
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private CSharpKernel RegisterCSharpKernel()
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{
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var csharpKernel = new CSharpKernel()
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.UseDefaultFormatting()
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.UseNugetDirective()
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.UseKernelHelpers()
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.UseWho()
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.UseDotNetVariableSharing()
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//This is added locally
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.UseWpf();
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_Kernel.Add(csharpKernel);
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csharpKernel.AddMiddleware(async (KernelCommand command, KernelInvocationContext context, KernelPipelineContinuation next) =>
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{
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if (RunOnDispatcher)
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{
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await Dispatcher.InvokeAsync(async () => await next(command, context));
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}
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else
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{
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await next(command, context);
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}
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});
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return csharpKernel;
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}
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}
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}

‎samples/connect-wpf/AssemblyInfo.cs‎

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using System.Windows;
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[assembly: ThemeInfo(
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ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
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//(used if a resource is not found in the page,
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// or application resource dictionaries)
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ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
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//(used if a resource is not found in the page,
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// app, or any theme specific resource dictionaries)
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)]

‎samples/connect-wpf/MainWindow.xaml‎

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<Window x:Class="WpfConnect.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
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xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
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mc:Ignorable="d"
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Title="MainWindow" Height="450" Width="800">
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<Grid>
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<TextBlock Text="{Binding Text}" />
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</Grid>
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</Window>

‎samples/connect-wpf/MainWindow.xaml.cs‎

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using Microsoft.DotNet.Interactive;
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using System.Windows;
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namespace WpfConnect
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{
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/// <summary>
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/// Interaction logic for MainWindow.xaml
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/// </summary>
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public partial class MainWindow : Window
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{
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public MainWindow()
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{
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InitializeComponent();
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DataContext = new MainWindowViewModel();
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}
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}
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}

‎samples/connect-wpf/MainWindowViewModel.cs‎

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using System.ComponentModel;
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namespace WpfConnect
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{
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public class MainWindowViewModel : INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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private string _text = "Init Value";
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public string Text
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{
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get => _text;
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set
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{
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if (_text != value)
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{
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_text = value;
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PropertyChanged.Invoke(this, new PropertyChangedEventArgs(nameof(Text)));
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}
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}
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}
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}
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}

‎samples/connect-wpf/NuGet.config‎

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<?xml version="1.0" encoding="utf-8"?>
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<configuration>
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<solution>
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<add key="disableSourceControlIntegration" value="true" />
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</solution>
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<packageSources>
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<clear />
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<add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
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<add key="dotnet5" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet5/nuget/v3/index.json" />
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<add key="dotnet-tools" value="https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json" />
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<add key="dotnet-try" value="https://dotnet.myget.org/F/dotnet-try/api/v3/index.json" />
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</packageSources>
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</configuration>

‎samples/connect-wpf/README.dib‎

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#!markdown
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## Connect to the WPF app
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Before running cell, ensure the WPF app is running. This will connect the notebook to the WPF app. This must be run before any of the other cells.
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#!csharp
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#!connect named-pipe --kernel-name wpf --pipe-name InteractiveWpf
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#!markdown
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## Formatter (Rendering)
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#!csharp
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#!wpf
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#!dispatcher
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using System.Windows.Media;
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App.MainWindow.Background = new SolidColorBrush(Colors.Fuchsia);
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App.MainWindow.Background
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#!csharp
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#!wpf
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#!dispatcher
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using System.Windows.Media;
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using System.Windows.Controls;
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using System.Windows;
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var grid = (Grid)App.MainWindow.Content;
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grid.Background = new SolidColorBrush(Colors.Blue);
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grid
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#!markdown
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## View Model Stuff
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Create and apply a new view model to the main window.
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#!csharp
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#!wpf
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using System.ComponentModel;
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public class TestViewModel : INotifyPropertyChanged
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{
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public event PropertyChangedEventHandler PropertyChanged;
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private string _text = "Notebook Initial Value";
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public string Text
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{
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get => _text;
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set
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{
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if (_text != value)
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{
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_text = value;
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PropertyChanged.Invoke(this, new PropertyChangedEventArgs(nameof(Text)));
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}
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}
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}
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}
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var vm = new TestViewModel();
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#!dispatcher
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App.MainWindow.DataContext = vm;
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#!markdown
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Update the value on the data bound property.
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#!csharp
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#!wpf
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vm.Text = "Value changed!"
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#!markdown
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## Dispatcher stuff
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Demonstate enabling and disabling running code on the dispatcher.
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#!csharp
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#!wpf
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#!dispatcher --enabled true
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//This should work
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App.MainWindow.Title
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#!dispatcher --enabled false
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//This is expected to fail
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App.MainWindow.Title

‎samples/connect-wpf/WpfConnect.csproj‎

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<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
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<PropertyGroup>
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<TargetFramework>netcoreapp3.1</TargetFramework>
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<OutputType>WinExe</OutputType>
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<UseWPF>true</UseWPF>
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<DisableArcade>1</DisableArcade>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.DotNet.Interactive.CSharp" Version="1.0.0-beta.20374.1" />
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</ItemGroup>
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</Project>

‎samples/connect-wpf/WpfConnect.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 16
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VisualStudioVersion = 16.0.30310.162
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WpfConnect", "WpfConnect.csproj", "{3DE53DCF-00AD-4614-9CFD-A342317E7347}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{3DE53DCF-00AD-4614-9CFD-A342317E7347}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{3DE53DCF-00AD-4614-9CFD-A342317E7347}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{3DE53DCF-00AD-4614-9CFD-A342317E7347}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{3DE53DCF-00AD-4614-9CFD-A342317E7347}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {18629B67-9CB9-4089-A138-6C2BE0D43500}
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EndGlobalSection
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EndGlobal

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