UI Framework Built on top Of WPF Heavily inspired To ReactJS and Flutter

UI framework built on top of WPF heavily inspired to ReactJS and Flutter

ReactorUI for WPF (aka reactorui-wpf)

UI framework built on top of WPF heavily inspired to ReactJS and Flutter

ReactorUI for WPF is a .NET UI library written on top of WPF that let you write Windows applications using a MVU approach much similar to Flutter or ReactJS.

One key feature of ReactorUI is the Hot-Reload module: you'll be able to modify the application source code and UI without restarting the app.

Traditionally, WPF/UWP/WinUI/Avalonia/Xamarin/Uno frameworks encourage a MVVM approach in writing applications:

There is a view (usually written in XAML):

<Window x:Class="WpfReactorUI.DemoApp.LoginWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <StackPanel
        VerticalAlignment="Center"
        HorizontalAlignment="Center">
        <TextBox Text="{Binding Username}"/>
        <TextBox Text="{Binding Password}"/>
    </StackPanel>
</Window>

that is linked/bound to ViewModel (written in C#/VB.NET/F# etc):

public class LoginWindowViewModel : BindableObject
{
    private string _username;

    public string Username
    {
        get => _username;
        set
        {
            if (_username != value)
            {
                _username = value;
                OnPropertyChanged();
                LoginCommand.ChangeCanExecute();
            }
        }
    }

    private string _password;

    public string Password
    {
        get => _password;
        set
        {
            if (_password != value)
            {
                _password = value;
                OnPropertyChanged();
                LoginCommand.ChangeCanExecute();
            }
        }
    }

    private Command _loginCommand;

    public Command LoginCommand
    {
        get
        {
            _loginCommand = _loginCommand ?? new Command(OnLogin, () => !string.IsNullOrWhiteSpace(Username) && !string.IsNullOrWhiteSpace(Password));
            return _loginCommand;
        }
    }

    private void OnLogin()
    {
        //Username contains username and Password contains password
        //make login..
    }
}

ReactorUI uses a MVU approach: you write components instead of controls in a single file mixing UI and back-end code. Following is the same login screen written in ReactorUI:

public class LoginComponentState : IState
{
    public string Username { get; set; }

    public string Password { get; set; }
}

public class LoginComponent : RxComponent<LoginComponentState>
{
    public override VisualNode Render()
        => new RxStackPanel()
        {
            new RxTextBox()
                .Text(State.Username)
                .OnTextChanged(text => SetState(s => s.Username = text)),
            new RxTextBox()
                .Text(State.Password)
                .OnTextChanged(text => SetState(s => s.Password = text)),
            new RxButton()
                .OnClick(OnLogin)
        };

    private void OnLogin()
    {
        //login with State.Username and State.Password
    }
}

One big advantage of the ReactorUI approach is that its state live externally to the component making possible hot reloading it.

Download Details:

Author: adospace

Source Code: https://github.com/adospace/reactorui-wpf

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