69 lines
2.1 KiB
C#
69 lines
2.1 KiB
C#
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using Prism.Commands;
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using Prism.Regions;
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using System.Linq;
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using Unity;
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namespace RIZO.Client.Common
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{
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public abstract class ViewModelBase : INavigationAware
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{
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// * 未保存
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public string PageTitle { get; set; } = "标签标题";
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public bool IsCanClose { get; set; } = true;
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private string NavUri { get; set; }
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public DelegateCommand CloseCommand
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{
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get => new DelegateCommand(() =>
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{
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// 关闭操作
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// 根据URI获取对应的已注册对象名称
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var obj = _unityContainer.Registrations.FirstOrDefault(v => v.Name == NavUri);
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string name = obj.MappedToType.Name;
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// 根据对象名称再从Region的Views里面找到对象
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if (!string.IsNullOrEmpty(name))
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{
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var region = _regionManager.Regions["MainContentRegion"];
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var view = region.Views.FirstOrDefault(v => v.GetType().Name == name);
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// 把这个对象从Region的Views里移除
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if (view != null)
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region.Remove(view);
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}
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});
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}
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public DelegateCommand RefreshCommand { get => new DelegateCommand(Refresh); }
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public DelegateCommand AddCommand { get => new DelegateCommand(AddItem); }
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public void OnNavigatedTo(NavigationContext navigationContext)
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{
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NavUri = navigationContext.Uri.ToString();
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}
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public bool IsNavigationTarget(NavigationContext navigationContext)
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{
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return true;
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}
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public void OnNavigatedFrom(NavigationContext navigationContext)
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{
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}
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IUnityContainer _unityContainer;
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IRegionManager _regionManager;
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public ViewModelBase(IUnityContainer unityContainer, IRegionManager regionManager)
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{
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_unityContainer = unityContainer;
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_regionManager = regionManager;
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this.Refresh();
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}
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public virtual void Refresh() { }
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public virtual void AddItem() { }
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}
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}
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