做一个ModuleA与ModuleB之间的通信
1.新建一个ModuleA:
ViewAViewModel
public class ViewAViewModel:BindableBase { IEventAggregator _ea; private string _message="default" ; public string Message { get { return _message; } set { SetProperty(ref _message, value); } } public DelegateCommand SendMessageCommand { get; private set; } public ViewAViewModel(IEventAggregator ea) { _ea = ea; SendMessageCommand = new DelegateCommand(()=> { _ea.GetEvent<MessageSendEvent>().Publish(Message); }); } }
View.xaml
<StackPanel> <Button Content="btn1" Margin="20" Command="{Binding SendMessageCommand}"/> <TextBox Margin="20" Text="{Binding Message}"/> </StackPanel>
ModuleAClass
public class ModuleAClass: IModule { public void OnInitialized(IContainerProvider containerProvider) { var regionManager = containerProvider.Resolve<IRegionManager>(); regionManager.RegisterViewWithRegion("RegionModuleA", typeof(ViewA)); } public void RegisterTypes(IContainerRegistry containerRegistry) { } }
2.新建一个ModuleB:
ViewBViewModel:
public class ViewBViewModel : BindableBase { IEventAggregator _ea; private string _getValue; public string GetValue { get { return _getValue; } set { SetProperty(ref _getValue, value); } } public ViewBViewModel(IEventAggregator ea) { _ea = ea; _ea.GetEvent<MessageSendEvent>().Subscribe((x) => { GetValue = x; }); } }
ViewB
<StackPanel> <TextBlock Margin="20" Text="{Binding GetValue}" /> </StackPanel>
ModuleBClass
public class ModuleBClass:IModule { public void OnInitialized(IContainerProvider containerProvider) { var regionManager = containerProvider.Resolve<IRegionManager>(); regionManager.RegisterViewWithRegion("RegionModuleB", typeof(ViewB)); } public void RegisterTypes(IContainerRegistry containerRegistry) { } }
3.新建主窗体:
shell.xaml:
<Grid> <Grid.ColumnDefinitions> <ColumnDefinition/> <ColumnDefinition/> </Grid.ColumnDefinitions> <ContentControl prism:RegionManager.RegionName="RegionModuleA"/> <ContentControl prism:RegionManager.RegionName="RegionModuleB" Grid.Column="1"/> </Grid>
App .xaml:
<prism:PrismApplication x:Class="PrismDemo.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:PrismDemo" xmlns:prism="http://prismlibrary.com/" > <Application.Resources> </Application.Resources> </prism:PrismApplication>
App.xaml.cs
public partial class App : PrismApplication { protected override Window CreateShell() { return Container.Resolve<Shell>(); } protected override void RegisterTypes(IContainerRegistry containerRegistry) { } protected override void ConfigureModuleCatalog(IModuleCatalog moduleCatalog) { moduleCatalog.AddModule<ModuleA.ModuleAClass>(); moduleCatalog.AddModule<ModuleB.ModuleBClass>(); } }
4.新建一个跨试图通信工具
public class MessageSendEvent : PubSubEvent<string> { }
完成!!
效果: