[英]Change view in region using Prism, WPF
嘗試創建一個我希望在運行時更改的區域的視圖。 但是在運行時出現錯誤,如下所示...
public MainWindowViewModel(IEventAggregator eventAggregator,IRegionManager regionManager, IUnityContainer container)
{
_regionManager = regionManager;
NavigateCommand = new DelegateCommand<string>(Navigate);
eventAggregator.GetEvent<UpdatedEvent>().Subscribe(Updated);
eventAggregator.GetEvent<MapCenterChnagedEvent>().Subscribe(MapCenterChnagedEventHandler);
eventAggregator.GetEvent<AssetSelectedEvent>().Subscribe(AssetSelectedEventHandler);
_regionManager.RegisterViewWithRegion("ContentRegion", typeof(Views.GeoAssets));
_regionManager.RegisterViewWithRegion("ContentRegionAsset", typeof(Views.AssetDetails));
_regionManager.RegisterViewWithRegion("ContentRegionAsset", typeof(Views.Logs));
_regionManager.RegisterViewWithRegion("ContentRegionAsset", typeof(Views.Keys));
object view = container.Resolve<Views.Logs>();
object view2 = container.Resolve<Views.Keys>();
IRegion region = _regionManager.Regions["ContentRegionAsset"]; //get error , _regionManager has no regions defined
region.Activate(view); trying to make view logs the active view
}
查看XAML
視圖模型看起來不是注冊視圖的好地方。 我寧願瀏覽到那里,因為視圖模型可能會創建多次,並且視圖注冊更多是一次性的事情。
旁注:
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.