wpf stylet框架 关于View与viewmodel自动关联绑定的问题
1.1 命名规则 Aview 对应 AVIewModel, 文件夹 views 和 viewmodels
1.2 需要注册服务
//RootViewModel是主窗口
public class Bootstrapper : Bootstrapper<RootViewModel>{/// <summary>/// 配置IoC容器。为数据共享创建服务/// </summary>/// <param name="builder"></param>protected override void ConfigureIoC(IStyletIoCBuilder builder){builder.Bind<SharedDataService>().ToSelf().InSingletonScope();builder.Bind<AddCategoryViewModel>().ToSelf();}2 主窗口打开子窗口 如:RootViewModel==>AddCategoryViewModel
命令绑定方式: Command="{s:Action OpenWindowAction}"
public RootViewModel _rootViewModel ;
private IWindowManager _windowManager;public RootViewModel(IWindowManager windowManager,SharedDataService sharedService)
{_windowManager = windowManager;EditContent = new();_rootViewModel = this;_sharedService = sharedService;_sharedService.CategoryNameChanged += OnCategoryAdded;} public void OpenWindowAction(object commandParameter){_windowManager.ShowWindow(new AddCategoryViewModel(_sharedService)); //打开子窗口}//xaml :
<Button Content=""Command="{s:Action OpenWindowAction}"FontFamily="{StaticResource IconFont}"FontSize="20"Foreground="{DynamicResource TextIconBrush}"Style="{StaticResource ButtonCustom}" />3 窗口通信 , 注册服务 如上1.2:
private readonly SharedDataService _sharedService= new(); public NoteContentModel _noteContentModel = new();public RootViewModel(IWindowManager windowManager,SharedDataService sharedService)
{_windowManager = windowManager;EditContent = new();_rootViewModel = this;_sharedService = sharedService;_sharedService.CategoryNameChanged += OnCategoryAdded;//监听共享数据服务事件} /// <summary>/// 共享数据服务./// <para>如果跨线程修改数据(异步,多线程)，需通过 /// Execute.OnUIThread(() => SharedValue = "新值");</para>/// /// </summary>
public class SharedDataService: PropertyChangedBase
{private string _CategoryName;public string CategoryName{get { return _CategoryName; }set { SetAndNotify(ref _CategoryName, value);CategoryNameChanged?.Invoke(value); // 触发事件 }}/// <summary>/// 分类名称发生变化事件./// </summary>public event Action<string> CategoryNameChanged;子窗口代码
public partial class AddCategoryViewModel : Screen{private readonly SharedDataService _sharedService;public AddCategoryViewModel() { }// 通过构造函数注入 public AddCategoryViewModel(SharedDataService sharedService){_sharedService = sharedService;}private string _categoryName;public string CategoryName{get => _categoryName;set => SetAndNotify(ref _categoryName, value);}// 使用 Stylet 的 RelayCommand 替代 System.Windows.Input public RelayCommand WinClosedCommand => new RelayCommand((o) =>{// 更新共享数据 _sharedService.CategoryName = CategoryName;((HC.PopupWindow)o).Close();关闭窗口（Stylet 标准方式）//this.RequestClose(true);});}<hc:Window x:Class="ProgramNotes.Views.AddCategoryView"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:hc="https://handyorg.github.io/handycontrol"xmlns:local="clr-namespace:ProgramNotes.Views"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"xmlns:vm="clr-namespace:ProgramNotes.ViewModels"xmlns:i="http://schemas.microsoft.com/xaml/behaviors"xmlns:s="https://github.com/canton7/Stylet"Width="300"Height="50"d:DataContext="{d:DesignInstance Type=vm:AddCategoryViewModel}"AllowsTransparency="True"ShowInTaskbar="False"ShowTitle="False"BorderThickness="1"Background="{StaticResource WindowBrush}" WindowStartupLocation="CenterScreen"WindowStyle=" None"mc:Ignorable="d"><Grid Margin="8"><hc:SimplePanel ><TextBlock Margin="0"HorizontalAlignment="Left"VerticalAlignment="Center"Text="新的类别名称 " /><TextBox HorizontalAlignment="Stretch"Height="28"Text="{Binding CategoryName, Mode=TwoWay}"Margin="75,0 50 0"/></hc:SimplePanel><Button Grid.Row="0"Grid.Column="1"Margin="0"Style="{StaticResource ButtonPrimary}"Command="{Binding WinClosedCommand }"CommandParameter="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type hc:Window}}}"HorizontalAlignment="Right"VerticalAlignment="Center"Height="26"Content="确定" ></Button></Grid>
</hc:Window>