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Prism.Interactivity 和 Prism.Modularity 介绍

2020-07-30 21:33:08  阅读:31  来源: 互联网

标签:Interactivity ModuleCatalog container RegisterType Modularity Prism protected ov


Prism.Interactivity: 主要用来截取View即界面的一些处理,而这些功能通过vm 不好实现,只能用 CommandBehaviorBase 来截取处理,特别是在处理界面异常很有用。

定义如下:

  public class ValidationExceptionBehavior : Behavior<FrameworkElement>

// 方法体

}

使用:

界面错误信息的处理:

  <Interactivity:Interaction.Behaviors>                <common:ValidationExceptionBehavior></common:ValidationExceptionBehavior>

            </Interactivity:Interaction.Behaviors>

键盘事件的处理

 

   <Interactivity:Interaction.Triggers>

                <Interactivity:EventTrigger EventName="KeyDown">

                    <Interactivity:InvokeCommandAction Command="{Binding ButtonKeyDown}"

                                               CommandParameter="{Binding RelativeSource={RelativeSource  Mode=FindAncestor, AncestorType={x:Type Window}}}"/>

                </Interactivity:EventTrigger>

            </Interactivity:Interaction.Triggers>

 

注意界面要引用:

xmlns:Interactivity=http://schemas.microsoft.com/expression/2010/interactivity

 

Prism.Modularity: 模块定义,加载,管理

 

继承 IModule

 public class PositionModule : IModule

{

  // 其他内容

 

///必须实现 Initialize ,注册该模块中使用的服务,vm 等。提供主程序中使用。

    public void Initialize()

        {    

       .....

            this.container.RegisterType<IOrdersViewModel, OrdersViewModel>();

            this.container.RegisterType<IOrdersView, OrdersView>();

            this.container.RegisterType<IOrderCompositeViewModel, OrderCompositeViewModel>();

            this.container.RegisterType<IPositionSummaryViewModel, PositionSummaryViewModel>();

            this.container.RegisterType<IPositionPieChartViewModel, PositionPieChartViewModel>();

            this.regionManager.RegisterViewWithRegion(RegionNames.MainRegion,

                                                       () => this.container.Resolve<PositionSummaryView>());

            this._ordersController = this.container.Resolve<OrdersController>();

        }

}

 

主程序中使用方法:

在 Bootstrapper 中使用:

public class StockTraderRIBootstrapper : UnityBootstrapper

    {

        protected override void ConfigureModuleCatalog()

        {

            base.ConfigureModuleCatalog();

 

            ModuleCatalog moduleCatalog = (ModuleCatalog)this.ModuleCatalog;                   moduleCatalog.AddModule(typeof(StockTraderRI.Modules.Position.PositionModule));                     moduleCatalog.AddModule(typeof(StockTraderRI.Modules.News.NewsModule));

        }

 

        protected override DependencyObject CreateShell()

        {

            // Use the container to create an instance of the shell.

            Shell view = this.Container.TryResolve<Shell>();

            view.DataContext = new ShellViewModel();

            return view;

        }

 

        protected override void InitializeShell()

        {

            base.InitializeShell();

            App.Current.MainWindow = (Window)this.Shell;

            App.Current.MainWindow.Show();

        }

 

        protected override Prism.Regions.IRegionBehaviorFactory ConfigureDefaultRegionBehaviors()

        {

            var factory = base.ConfigureDefaultRegionBehaviors();

            return factory;

        }

}

 这是通过代码实现的,也可以通过 xml 配置文件实现

 

protected override IModuleCatalog CreateModuleCatalog() {     return ModuleCatalog.CreateFromXaml(new Uri("/MyProject;component/ModulesCatalog.xaml", UriKind.Relative)); }

标签:Interactivity,ModuleCatalog,container,RegisterType,Modularity,Prism,protected,ov
来源: https://www.cnblogs.com/tianya/p/13406427.html

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