Caliburn.Micro框架之Action Convertions

首先新建一个项目，名称叫Caliburn.Micro.ActionConvertions

然后删掉MainWindow.xaml

然后去app.xaml删掉StartupUri这行代码

其次，安装Caliburn.Micro，Caliburn.Micro.Core，这两个Nuget包，如下图

然后新建一个类Bootstrapper，这个类是引导作用，比如重写了首页的引导，ioc注入等

然后在项目中新建ViewModels，Views，在Views中添加窗口ShellView，在ViewModels中添加类ShellViewModel，如下图

public class Bootstrapper : BootstrapperBase

    {

        private SimpleContainer container;

        public Bootstrapper()

        {

            Initialize();

        }

        protected override void Configure()

        {

            container = new SimpleContainer();

            container.Singleton<IWindowManager, WindowManager>();

            container.PerRequest<ShellViewModel>();

        }

        protected override void OnStartup(object sender, StartupEventArgs e)

        {

            DisplayRootViewFor<ShellViewModel>();

        }

        protected override object GetInstance(Type service, string key)

        {

            return container.GetInstance(service, key);

        }

        protected override IEnumerable<object> GetAllInstances(Type service)

        {

            return container.GetAllInstances(service);

        }

        protected override void BuildUp(object instance)

        {

            container.BuildUp(instance);

        }

    }

再继续新建一个类TaskHelper

TaskHelper类的内容入下

修改ShellViewModel类

public class ShellViewModel : Screen

    {

        private string output;

        public void Clear() => Output = String.Empty;

        public void SimpleSayHello() => Output = "Hello from Caliburn.Micro";

        public void SayHello(string name) => Output = $"Hello {name}";

        public bool CanSayHello(string name) => !String.IsNullOrEmpty(name);

        public Task SayGoodbyeAsync(string name)

        {

            Output = $"Goodbye {name}";

            return TaskHelper.FromResult(true);

        }

        public bool CanSayGoodbye(string name) => !String.IsNullOrEmpty(name);

        public string Output

        {

            get { return output; }

            set { Set(ref output, value); }

        }

    }

然后修改ShellView页面的布局

<Window x:Class="Caliburn.Micro.ActionConvertions.Views.ShellView"

        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

        xmlns:local="clr-namespace:Caliburn.Micro.ActionConvertions.Views"

        mc:Ignorable="d"

        xmlns:cm="http://www.caliburnproject.org"

        xmlns:i="http://schemas.microsoft.com/xaml/behaviors"

        Title="ShellView" Height="" Width="">

    <Window.Resources>

        <Style x:Key="ActionButtonStyle"

               TargetType="Button">

            <Setter Property="Margin"

                    Value="0,10,0,0" />

            <Setter Property="HorizontalAlignment"

                    Value="Stretch" />

        </Style>

    </Window.Resources>

    <Grid>

        <ScrollViewer>

            <StackPanel Margin="24,12">

                <TextBlock>

                        <Run Text="Output:"

                             FontWeight="Bold" />

                        <Run Text="{Binding Output}" />

                </TextBlock>

                <TextBlock Text="Name" />

                <TextBox x:Name="Name"

                         Margin="0,10,0,0"

                         HorizontalAlignment="Stretch" />

                <Button x:Name="Clear"

                        Content="Clear"

                        Style="{StaticResource ActionButtonStyle}" />

                <Button x:Name="SimpleSayHello"

                        Content="Simple Say Hello"

                        Style="{StaticResource ActionButtonStyle}" />

                <Button cm:Message.Attach="SimpleSayHello"

                        Content="Simple Say Hello (using Message.Attach)"

                        Style="{StaticResource ActionButtonStyle}" />

                <Button cm:Message.Attach="[Event MouseDoubleClick] = [SimpleSayHello]"

                        Content="Simple Say Hello (Custom Event - Double Tapped)"

                        Style="{StaticResource ActionButtonStyle}" />

                <Button x:Name="FullSyntax"

                        Content="Simple Say Hello (Full Behaviour Syntax)"

                        Style="{StaticResource ActionButtonStyle}">

                    <i:Interaction.Triggers>

                        <i:EventTrigger EventName="Click">

                            <cm:ActionMessage MethodName="SimpleSayHello" />

                        </i:EventTrigger>

                    </i:Interaction.Triggers>

                </Button>

                <Button x:Name="SayHello"

                        Content="Say Hello (with parameter)"

                        Style="{StaticResource ActionButtonStyle}" />

                <Button cm:Message.Attach="SayHello(Name)"

                        Content="Say Hello (with parameter and Message.Attach)"

                        Style="{StaticResource ActionButtonStyle}" />

                <Button x:Name="SayGoodbye"

                        Content="Say Goodbye (async method)"

                        Style="{StaticResource ActionButtonStyle}" />

            </StackPanel>

        </ScrollViewer>

    </Grid>

</Window>

修改App.xaml的引导程序代码

    <Application.Resources>

        <ResourceDictionary>

            <ResourceDictionary.MergedDictionaries>

                <ResourceDictionary>

                    <local:Bootstrapper x:Key="Bootstrapper" />

                </ResourceDictionary>

            </ResourceDictionary.MergedDictionaries>

        </ResourceDictionary>

    </Application.Resources>

然后运行如下图所示

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