Principal must be of type BusinessPrincipal, not Nothing

RichardETVS posted on Friday, March 02, 2007

Well, after a failed attempt (of I speak about here), I tried another approach.

So, I used an example application who works fine (it is your code, phucphlq) on local, with no remoting, configuration.

I tried to make it as client server one, with the server in a console app. This time, I use a config file for the server side, here it is.

<configuration>
  <system.runtime.remoting>
  <application>
   <service>
        <wellknown mode="SingleCall" objectUri="RemotingPortal.rem"
               type="Csla.Server.Hosts.RemotingPortal, Csla"/>       
   </service>
   <channels>
    <channel ref="http" port="3187">
     <serverProviders>
      <provider ref="wsdl"/>
      <formatter ref="soap" typeFilterLevel="Full"/>
      <formatter ref="binary" typeFilterLevel="Full"/>
     </serverProviders>
    </channel>
   </channels>
  </application>
 </system.runtime.remoting>
  <connectionStrings>
    <add name="DatabaseFile" connectionString="Db4oCSLA.yap" />
  </connectionStrings>
</configuration>

And the server itself is very simple:

        static void Main(string[] args)
        {

            String filename = "..\\..\\App.config";
            RemotingConfiguration.Configure(filename);
            Console.WriteLine("ServerStartup.Main(): Server started");

            // the server will keep running until keypress.
            Console.ReadLine();
   }

Here is the client config file:

<configuration>
  <appSettings>
    <add key="CslaAuthentication" value="Windows" />
    <add key="CslaDataPortalProxy"
      value="Csla.DataPortalClient.RemotingProxy, Csla"/>
    <add key="CslaDataPortalUrl"
      value="http://localhost:3187/RemotingPortal.rem"/>
  </appSettings> 
  <connectionStrings>
  </connectionStrings>
</configuration>

When I use the client, I get the error “Principal must be of type BusinessPrincipal, not Nothing” at the line “return Csla.DataPortal.Create<EditableRootEmployee>();” from the public class EditableRootEmployee:Csla.BusinessBase<EditableRootEmployee>.

Here is the code:

       public static EditableRootEmployee New()
        {
            return Csla.DataPortal.Create<EditableRootEmployee>();
        }
        protected override void DataPortal_Create()
        {
            MarkOld();
        }

And the complete exception

System.Security.SecurityException was unhandled
  Message="Principal must be of type BusinessPrincipal, not Nothing"
  Source="Csla"
  StackTrace:
    Server stack trace:
       à Csla.Server.DataPortal.SetContext(DataPortalContext context)
       à Csla.Server.DataPortal.Create(Type objectType, Object criteria, DataPortalContext context)
       à Csla.Server.Hosts.RemotingPortal.Create(Type objectType, Object criteria, DataPortalContext context)
       à System.Runtime.Remoting.Messaging.StackBuilderSink._PrivateProcessMessage(IntPtr md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
       à System.Runtime.Remoting.Messaging.StackBuilderSink.PrivateProcessMessage(RuntimeMethodHandle md, Object[] args, Object server, Int32 methodPtr, Boolean fExecuteInContext, Object[]& outArgs)
       à System.Runtime.Remoting.Messaging.StackBuilderSink.SyncProcessMessage(IMessage msg, Int32 methodPtr, Boolean fExecuteInContext)
    Exception rethrown at [0]:
       à System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg)
       à System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(MessageData& msgData, Int32 type)
       à Csla.Server.IDataPortalServer.Create(Type objectType, Object criteria, DataPortalContext context)
       à Csla.DataPortalClient.RemotingProxy.Create(Type objectType, Object criteria, DataPortalContext context)
       à Csla.DataPortal.Create(Type objectType, Object criteria)
       à Csla.DataPortal.Create[T]()
       à Business.EditableRootEmployee.New() dans C:\Documents and Settings\PETITDM\Mes documents\Visual Studio 2005\Projects\Tests\db4oprogs\db4oCSLA\Test CS2\Business\EditableRootEmployee.cs:ligne 57
       à Db4oAndCSLA.MainForm..ctor() dans C:\Documents and Settings\PETITDM\Mes documents\Visual Studio 2005\Projects\Tests\db4oprogs\db4oCSLA\Test CS2\Db4oAndCSLA\MainForm.cs:ligne 17
       à Db4oAndCSLA.Program.Main() dans C:\Documents and Settings\PETITDM\Mes documents\Visual Studio 2005\Projects\Tests\db4oprogs\db4oCSLA\Test CS2\Db4oAndCSLA\Program.cs:ligne 17
       à System.AppDomain.nExecuteAssembly(Assembly assembly, String[] args)
       à System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       à Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       à System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       à System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       à System.Threading.ThreadHelper.ThreadStart()

Again, any help would be welcome

Thanks

Richard

Edit: That's ok, I found the solution here , I added

 <appSettings>
    <add key="CslaAuthentication" value="Windows" />
  </appSettings>

in the config file of the server.