75 lines
2.5 KiB
C#
75 lines
2.5 KiB
C#
// 文件: DMS.WPF/Services/NavigationService.cs
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using DMS.WPF.ViewModels;
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using Microsoft.Extensions.DependencyInjection;
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using System;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using System.Windows;
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using DMS.ViewModels;
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using DMS.WPF.Views;
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namespace DMS.WPF.Services;
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/// <summary>
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/// INavigationService 的实现，负责解析ViewModel并处理参数传递。
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/// </summary>
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public class NavigationService : INavigationService
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{
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private readonly IServiceProvider _serviceProvider;
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/// <summary>
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/// 构造函数。
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/// </summary>
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public NavigationService(IServiceProvider serviceProvider)
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{
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_serviceProvider = serviceProvider;
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}
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/// <summary>
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/// 导航到指定键的视图，并传递参数。
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/// </summary>
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public async Task NavigateToAsync(string viewKey, object parameter = null)
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{
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if (string.IsNullOrEmpty(viewKey))
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{
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return;
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}
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var mainViewModel = App.Current.Services.GetRequiredService<MainViewModel>();
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var viewModel = GetViewModelByKey(viewKey);
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if (viewModel is INavigatable navigatableViewModel)
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{
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await navigatableViewModel.OnNavigatedToAsync(parameter);
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}
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mainViewModel.CurrentViewModel = viewModel;
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}
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private ViewModelBase GetViewModelByKey(string key)
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{
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switch (key)
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{
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case "HomeView":
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return App.Current.Services.GetRequiredService<HomeViewModel>();
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case "DevicesView":
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return App.Current.Services.GetRequiredService<DevicesViewModel>();
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case "DeviceDetailView":
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return App.Current.Services.GetRequiredService<DeviceDetailViewModel>();
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case "DataTransformView":
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return App.Current.Services.GetRequiredService<DataTransformViewModel>();
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case "VariableTableView":
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return App.Current.Services.GetRequiredService<VariableTableViewModel>();
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case "MqttsView":
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return App.Current.Services.GetRequiredService<MqttsViewModel>();
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case "MqttServerDetailView":
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return App.Current.Services.GetRequiredService<MqttServerDetailViewModel>();
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case "SettingView":
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return App.Current.Services.GetRequiredService<SettingViewModel>();
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default:
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throw new KeyNotFoundException($"未找到与键 '{key}' 关联的视图模型类型。请检查 NavigationService 的映射配置。");
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}
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}
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} |