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POUnity (in PRISM) does (not) weird resolving...??!!
 

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  1. POUnity (in PRISM) does (not) weird resolving...??!!
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    <p>I 'm using PRISM and in the Bootstrapper class i did override the ConfigureContainer() method. There is nothing fancy in it just these lines:</p> <pre><code>protected override void ConfigureContainer() { Container.RegisterType&lt;IDataContext, SQLDataContext&gt;(new InjectionConstructor(@"Server=localhost\SQLExpress;User Id=sa;Password=xxxxx;Database=MyDatabase")); base.ConfigureContainer(); } </code></pre> <p>At "debug-time" i try to call Container.Resolve() but this gives me the following error:</p> <blockquote> <p>{"Resolution of the dependency failed, type = \"Photo.DAL.Abstract.IDataContext\", name = \"\". Exception message is: The current build operation (build key Build Key[Photo.DAL.Concrete.SQLDataContext, null]) failed: Value cannot be null.\r\nParameter name: stream (Strategy type BuildPlanStrategy, index 3)"} System.Exception {Microsoft.Practices.Unity.ResolutionFailedException}</p> </blockquote> <p>But when i do </p> <pre><code>Container.IsTypeRegistered(typeof(IDataContext)) </code></pre> <p>I get true!!!</p> <ul> <li>What am I missing???</li> </ul> <hr> <p><strong>Info which published as answer below, which should be an edit to the question:</strong></p> <p>This is the full stack:</p> <pre><code>Microsoft.Practices.Unity.ResolutionFailedException: Resolution of the dependency failed, type = "Photo.DAL.Abstract.IDataContext", name = "". Exception message is: The current build operation (build key Build Key[Photo.DAL.Concrete.SQLDataContext, null]) failed: Value cannot be null. Parameter name: stream (Strategy type BuildPlanStrategy, index 3) ---&gt; Microsoft.Practices.ObjectBuilder2.BuildFailedException: The current build operation (build key Build Key[Photo.DAL.Concrete.SQLDataContext, null]) failed: Value cannot be null. Parameter name: stream (Strategy type BuildPlanStrategy, index 3) ---&gt; System.ArgumentNullException: Value cannot be null. Parameter name: stream at System.Data.Linq.Mapping.XmlMappingSource.FromStream(Stream stream) at Photo.DAL.Mapping.GetMapping() in C:\Users\Savvas\Documents\Visual Studio 2008\Projects\Photo\Photo.DAL\Mapping.cs:line 18 at Photo.DAL.Concrete.SQLDataContext..ctor(String connectionString) in C:\Users\Savvas\Documents\Visual Studio 2008\Projects\Photo\Photo.DAL\Concrete\SQLDataContext.cs:line 52 at BuildUp_Photo.DAL.Concrete.SQLDataContext(IBuilderContext ) at Microsoft.Practices.ObjectBuilder2.DynamicMethodBuildPlan.BuildUp(IBuilderContext context) at Microsoft.Practices.ObjectBuilder2.BuildPlanStrategy.PreBuildUp(IBuilderContext context) at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) --- End of inner exception stack trace --- at Microsoft.Practices.ObjectBuilder2.StrategyChain.ExecuteBuildUp(IBuilderContext context) at Microsoft.Practices.ObjectBuilder2.Builder.BuildUp(IReadWriteLocator locator, ILifetimeContainer lifetime, IPolicyList policies, IStrategyChain strategies, Object buildKey, Object existing) at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name) --- End of inner exception stack trace --- at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, Object existing, String name) at Microsoft.Practices.Unity.UnityContainer.DoBuildUp(Type t, String name) at Microsoft.Practices.Unity.UnityContainer.Resolve(Type t, String name) at Microsoft.Practices.Unity.UnityContainerBase.Resolve(Type t) at Microsoft.Practices.Unity.UnityContainerBase.Resolve[T]() at Photo.Desktop.Bootstrapper.ConfigureContainer() in C:\Users\Savvas\Documents\Visual Studio 2008\Projects\Photo\Photo.Desktop\Bootstrapper.cs:line 42 </code></pre> <p>I noticed that the error is not coming from actually resolving the class, but from the calling method GetMapping() which is defined as</p> <pre><code>public static class Mapping { public static XmlMappingSource GetMapping() { XmlMappingSource mapping; using (Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream("Photo.DAL.Entities.Entities.map")) { mapping = XmlMappingSource.FromStream(stream); } return mapping; } } </code></pre> <ul> <li>Is Unity incapable of doing this? (it worked well with Windsor!!)</li> </ul>
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    1. PO
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    1. PTQuestion
    1. This table or related slice is empty.
    1. USsavvas sopiadis
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    1. This table or related slice is empty.
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    1. CO:( For extremely confusing title!
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      1. POUnity (in PRISM) does (not) weird resolving...??!!
      1. USNathan Taylor
    2. COYes you are right...but i'm confused also! :))
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      1. POUnity (in PRISM) does (not) weird resolving...??!!
      1. USsavvas sopiadis
 

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