我使用棱鏡4.1與mef開發前臺應用程序,我遇到了問題。有時,在模塊加載過程的應用程序失敗,異常Silverlight Prism無法解析加載模塊,但並不總是
無法加載文件或程序集「Sl.Common.Model,版本= 1.0.0.0,文化=中立, 公鑰=空」或它的一個依賴。找不到指定的文件。
模塊具有依賴關係(AuditModule和LoadersModule依賴於CommonModule)。
<Modularity:ModuleCatalog xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
xmlns:Modularity="clr-namespace:Microsoft.Practices.Prism.Modularity;assembly=Microsoft.Practices.Prism">
<!-- language: lang-xml -->
<Modularity:ModuleInfo Ref="Sl.Common.Model.xap" InitializationMode="WhenAvailable" ModuleName="CommonModule"/>
<Modularity:ModuleInfo Ref="Sl.Loaders.xap" ModuleName="LoadersModule">
<Modularity:ModuleInfo.DependsOn>
<sys:String>CommonModule</sys:String>
</Modularity:ModuleInfo.DependsOn>
</Modularity:ModuleInfo>
<Modularity:ModuleInfo Ref="Sl.Audit.xap" ModuleName="AuditModule">
<Modularity:ModuleInfo.DependsOn>
<sys:String>CommonModule</sys:String>
</Modularity:ModuleInfo.DependsOn>
</Modularity:ModuleInfo>
</Modularity:ModuleCatalog>
應用程序有時會啓動不錯,但我有一個問題,當AuditModule或LoadersModule不能因爲「CommonModule」上面descibed例外來解決。
public class Bootstrapper : MefBootstrapper
{
private const string ModuleCatalogUri = "/ModerationSlUserInteface;component/ModulesCatalog.xaml";
protected override void ConfigureAggregateCatalog()
{
base.ConfigureAggregateCatalog();
this.AggregateCatalog.Catalogs.Add(new AssemblyCatalog(typeof(Bootstrapper).Assembly));
this.AggregateCatalog.Catalogs.Add(new AssemblyCatalog(typeof(StackPanelRegionAdapter).Assembly));
}
protected override IModuleCatalog CreateModuleCatalog()
{
var catalog = Microsoft.Practices.Prism.Modularity.ModuleCatalog.CreateFromXaml(new Uri(ModuleCatalogUri, UriKind.Relative));
return catalog;
}
protected override DependencyObject CreateShell()
{
return this.Container.GetExportedValue<Shell>();
}
protected override void InitializeShell()
{
//base.InitializeShell();
Application.Current.RootVisual = (UIElement)this.Shell;
}
protected override RegionAdapterMappings ConfigureRegionAdapterMappings()
{
RegionAdapterMappings mappings = base.ConfigureRegionAdapterMappings();
var stackPanelAdapterInstance = ServiceLocator.Current.GetInstance<StackPanelRegionAdapter>();
mappings.RegisterMapping(typeof(StackPanel), stackPanelAdapterInstance);
return mappings;
}
}
的代碼可以從here
P.S.採取在Shell.xaml.cs中,當我打到 if if(e.ModuleInfo.ModuleName == LoadersModuleName)
如果第一個Module是CommonModule,那麼應用程序就會正常啓動。否則它會例外。
[Export]
public partial class Shell : UserControl, IPartImportsSatisfiedNotification
{
private const string LoadersModuleName = "LoadersModule";
private static Uri LoadersViewUri = new Uri("/LoadersView", UriKind.Relative);
public Shell()
{
this.InitializeComponent();
}
[Import(AllowRecomposition = false)]
public IModuleManager ModuleManager;
[Import(AllowRecomposition = false)]
public IRegionManager RegionManager;
public void OnImportsSatisfied()
{
this.ModuleManager.LoadModuleCompleted += (s, e) =>
{
if (e.ModuleInfo.ModuleName == LoadersModuleName)
{
this.RegionManager.RequestNavigate(RegionNames.MainRegion, LoadersViewUri);
}
};
}
}
謝謝。我已經使它在啓動應用程序中引用CommonModule。但之前它怎麼能工作? – Grigory