110 lines
3.8 KiB
C#
110 lines
3.8 KiB
C#
using Prism.Navigation.Regions;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Media;
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using UIShare.ViewModelBase;
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namespace MainModule.ViewModels
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{
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public class ProtocolStartViewModel : NavigateViewModelBase
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{
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#region 私有字段
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private string _testStatus;
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private string _moduleColor;
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#endregion
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#region 属性
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public string TestStatus
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{
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get => _testStatus;
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set => SetProperty(ref _testStatus, value);
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}
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public string ModuleColor
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{
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get => _moduleColor;
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set => SetProperty(ref _moduleColor, value);
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}
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#endregion
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#region 命令
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public DelegateCommand StartProtocolCommand { get; }
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#endregion
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public ProtocolStartViewModel(IContainerProvider containerProvider) : base(containerProvider)
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{
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StartProtocolCommand = new DelegateCommand(OnStart);
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}
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#region 命令处理与事件
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private void OnStart()
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{
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// 只在当前格子所属的 Cell Region 内完成切换，不会影响其他格子位置
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SwitchNavigate("AutomatedTestingView");
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}
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/// <summary>
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/// 定位当前视图所在的 Cell Region（TestCell1..TestCell9），
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/// 在同一个 Region 内完成跳转。Region 位置由 XAML Grid 锁定，永远不会错位。
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/// </summary>
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public void SwitchNavigate(string viewName)
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{
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// 1. 反向查找：哪个 Cell Region 当前托着“我”这个 ProtocolStartView
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for (int i = 1; i <= 9; i++)
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{
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var regionName = $"TestCell{i}";
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if (!_regionManager.Regions.ContainsRegionWithName(regionName)) continue;
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var region = _regionManager.Regions[regionName];
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var myView = region.Views
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.OfType<FrameworkElement>()
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.FirstOrDefault(v => v.DataContext == this);
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if (myView == null) continue;
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// 2. 透传名称与颜色参数，使 AutomatedTestingViewModel 能正确初始化
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var parameters = new NavigationParameters();
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parameters.Add("Name", TestStatus);
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parameters.Add("Color", ModuleColor);
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// 3. 在本格子 Region 内请求导航，导航成功后再移除旧的 ProtocolStartView 以释放资源
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_regionManager.RequestNavigate(regionName, viewName, navResult =>
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{
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if (navResult.Success == true)
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{
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region.Remove(myView);
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}
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}, parameters);
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_moduleManager.LoadModule("MonitorModule");
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_moduleManager.LoadModule("SettingModule");
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return;
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}
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}
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#endregion
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#region 重写
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public override bool IsNavigationTarget(NavigationContext navigationContext)
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{
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if (navigationContext.Parameters.ContainsKey("Name"))
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return TestStatus == navigationContext.Parameters.GetValue<string>("Name");
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return true;
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}
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public override void OnNavigatedTo(NavigationContext navigationContext)
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{
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base.OnNavigatedTo(navigationContext);
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// 接收导航传参：名称与颜色
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if (navigationContext.Parameters.ContainsKey("Name"))
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TestStatus = navigationContext.Parameters.GetValue<string>("Name");
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if (navigationContext.Parameters.ContainsKey("Color"))
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ModuleColor = navigationContext.Parameters.GetValue<string>("Color");
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}
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#endregion
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}
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} |