[超级简单入门]c# .net ReactiveUI RX.Net Winform MVVM 双向绑定示例

3个Nuget包

  <ItemGroup>
    <PackageReference Include="ReactiveUI" Version="16.2.6" />
    <PackageReference Include="ReactiveUI.Fody" Version="16.2.6" />
    <PackageReference Include="ReactiveUI.WinForms" Version="16.2.6" />
  </ItemGroup>

界面拖3个控件

using ReactiveUI;
using ReactiveUI.Fody.Helpers;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.DirectoryServices;
using System.Drawing;
using System.Linq;
using System.Reactive.Concurrency;
using System.Reactive.Linq;
using System.Reactive.Subjects;
using System.Reflection.Emit;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Windows.Input;

namespace RxNetTest1
{
    public partial class Form1 : Form, IViewFor<ShellViewModel>
    {
        public Form1()
        {
            InitializeComponent();
            ViewModel = new ShellViewModel();
            this.Bind(ViewModel, x => x.Text1, x => x.textBox1.Text);
            this.Bind(ViewModel, x => x.Text1, x => x.button1.Text);
            this.Bind(ViewModel, x => x.Text1, x => x.label1.Text);
            this.BindCommand(ViewModel, x => x.OKCmd, x => x.button1);
        }

        public ShellViewModel ViewModel { get; set; }

        object IViewFor.ViewModel
        {
            get => ViewModel;
            set => ViewModel = (ShellViewModel)value;
        }
    }
}

ShellViewModel.cs

using ReactiveUI;
using ReactiveUI.Fody.Helpers;

namespace RxNetTest1
{
    public class ShellViewModel : ReactiveObject
    {
        public ShellViewModel()
        {
            OKCmd = ReactiveCommand.Create(() => { Count++; Text1 = Text1.Split('-')[0].Trim() + " - " + Count; }
                , this.WhenAny(vm => vm.Count, s => Count >=0));
        }
        [Reactive]
        public int Count { get; set; } = 0;

        [Reactive]
        public string Text1 { get; set; } = "测试文字";


        public ReactiveCommand<System.Reactive.Unit, System.Reactive.Unit> OKCmd { get; set; }

    }

}

双向绑定演示效果