Hi all,
I've been battling with this problem for a while and I'm pretty sure I have it nailed down to serializing an IDictionary. I have a nhibernate object that has an IDictionary property. I have a data access class which I am using via remoting (I am using Spring.NET to configure the remoting). I can load my object in the clinet application, however when I try to send the same object back to the server as a parameter to another method I get a reflection permissions problem.
Some details:
On my Product class I believe this is the offending property
Code:
/// <summary>
/// Gets or sets the ProductSpecifications for the current Product
/// </summary>
public virtual IDictionary ProductSpecifications
{
get { return this.productSpecifications; }
set { this.productSpecifications = value; }
}
and the mapping looks like this
Code:
<map name="ProductSpecifications" lazy="true" inverse="true" cascade="all">
<key column="ProductId" />
<index-many-to-many column="SpecificationGroupSpecificationId" class="SpecificationGroupSpecification"/>
<one-to-many class="ProductSpecification"/>
</map>
In the client ProductService is a remoting service:
Code:
Product product = ProductService.GetProductByProductId(370);
ProductService.GetVendorProductByProduct(product);
The first line executes fine and returns me a usable object, however the second line throws the following exception.
Code:
Server stack trace:
at System.RuntimeMethodHandle._SerializationInvoke(Object target, SignatureStruct& declaringTypeSig, SerializationInfo info, StreamingContext context)
at System.RuntimeMethodHandle.SerializationInvoke(Object target, SignatureStruct declaringTypeSig, SerializationInfo info, StreamingContext context)
at System.Reflection.RuntimeConstructorInfo.SerializationInvoke(Object target, SerializationInfo info, StreamingContext context)
at System.Runtime.Serialization.ObjectManager.CompleteISerializableObject(Object obj, SerializationInfo info, StreamingContext context)
at System.Runtime.Serialization.ObjectManager.FixupSpecialObject(ObjectHolder holder)
at System.Runtime.Serialization.ObjectManager.DoFixups()
at System.Runtime.Serialization.Formatters.Binary.ObjectReader.Deserialize(HeaderHandler handler, __BinaryParser serParser, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Deserialize(Stream serializationStream, HeaderHandler handler, Boolean fCheck, Boolean isCrossAppDomain, IMethodCallMessage methodCallMessage)
at System.Runtime.Remoting.Channels.CoreChannel.DeserializeBinaryRequestMessage(String objectUri, Stream inputStream, Boolean bStrictBinding, TypeFilterLevel securityLevel)
at System.Runtime.Remoting.Channels.BinaryServerFormatterSink.ProcessMessage(IServerChannelSinkStack sinkStack, IMessage requestMsg, ITransportHeaders requestHeaders, Stream requestStream, IMessage& responseMsg, ITransportHeaders& responseHeaders, Stream& responseStream)
Exception rethrown at [0]:
at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
at BeforeYouBuy.Services.Interfaces.IProductService.GetVendorProductByProduct(Product product)
at ConsoleApplication1.Program.Run() in C:\svn\ConsoleApplication1\Program.cs:line 51
at ConsoleApplication1.Program.Main(String[] args) in C:\svn\ConsoleApplication1\Program.cs:line 37
Inner exception
Code:
at System.Security.CodeAccessSecurityEngine.SpecialDemand(PermissionType whatPermission, StackCrawlMark& stackMark)
at System.Security.CodeAccessPermission.DemandInternal(PermissionType permissionType)
at System.Reflection.Emit.AssemblyBuilder.DefineDynamicModule(String name, Boolean emitSymbolInfo)
at Castle.DynamicProxy.Builder.CodeGenerators.ModuleScope.CreateModule(Boolean signStrongName)
at Castle.DynamicProxy.Builder.CodeGenerators.ModuleScope.ObtainDynamicModule(Boolean signStrongName)
at Castle.DynamicProxy.Builder.CodeBuilder.EasyType..ctor(ModuleScope modulescope, String name, Type baseType, Type[] interfaces, Boolean serializable)
at Castle.DynamicProxy.Builder.CodeGenerators.BaseCodeGenerator.CreateTypeBuilder(String typeName, Type baseType, Type[] interfaces)
at Castle.DynamicProxy.Builder.CodeGenerators.ClassProxyGenerator.GenerateCode(Type baseClass, Type[] interfaces)
at Castle.DynamicProxy.Serialization.ProxyObjectReference.RecreateClassProxy(SerializationInfo info, StreamingContext context)
at Castle.DynamicProxy.Serialization.ProxyObjectReference.RecreateProxy(SerializationInfo info, StreamingContext context)
at Castle.DynamicProxy.Serialization.ProxyObjectReference..ctor(SerializationInfo info, StreamingContext context)
And if any one is still reading - I've tried signing my entities assembly and adding the AllowParitallyTrustedCallers attribute but that didn't help.
If anyone can help me out here I would be extremely grateful!
Thanks,
Roboguy[/code]
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