DevForce Community Forum : IEntityLoginManager Serialization Issues http://www.ideablade.com/forum/ This is an XML content feed of; DevForce Community Forum : DevForce 2010 : IEntityLoginManager Serialization Issues Tue, 21 Apr 2026 22:13:12 -700 Fri, 30 Jul 2010 10:30:23 -700 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 9.69 360 www.ideablade.com/forum/RSS_post_feed.asp?TID=1936 DevForce Community Forum http://www.ideablade.com/forum/forum_images/IdeaBlade_logo_tm.png http://www.ideablade.com/forum/ IEntityLoginManager Serialization Issues : There's a snippet here, along... http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7933#7933 Author: kimj
Subject: 1936
Posted: 30-Jul-2010 at 10:30am

There's a snippet here, along with more information  -
http://www.ideablade.com:8989/xwiki/bin/view/Documentation/Security#HImplementingIEntityLoginManager
 
]]> Fri, 30 Jul 2010 10:30:23 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7933#7933 IEntityLoginManager Serialization Issues : Any chance you could post a sample... http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7921#7921 Author: mlens
Subject: 1936
Posted: 29-Jul-2010 at 5:23pm

Any chance you could post a sample implementation of the LoginManager under DevForce 2010? It's really confusing when you say GenericPrincipal and GenericIdentity are no longer supported but the login method of IEntityLoginManager returns IPrincipal....

Thanks
]]> Thu, 29 Jul 2010 17:23:49 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7921#7921 IEntityLoginManager Serialization Issues : GenericPrincipal and GenericIdentity... http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7514#7514 Author: kimj
Subject: 1936
Posted: 04-Jul-2010 at 6:01pm

GenericPrincipal and GenericIdentity are not types intrinsic to Silverlight.  In DevForce Silverlight 2009 we did define these types within the DF assemblies, but we dropped this in DF 2010.  (GenericPrincipal and GenericIdentity are still available in standard .NET - http://msdn.microsoft.com/en-us/library/system.security.principal.genericprincipal.aspx.) 
 
You can return any type implementing IPrincipal from an IEntityLoginManager, as long as it's defined on both client and server.
]]> Sun, 04 Jul 2010 18:01:35 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7514#7514 IEntityLoginManager Serialization Issues : Wemade a change to the IEntityLoginManager... http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7504#7504 Author: ting
Subject: 1936
Posted: 02-Jul-2010 at 8:26pm

We made a change to the IEntityLoginManager in DevForce 2010 (this was buried on page 28 of the Release Notes).  You should now be returning a UserBase or your own IPrincipal.  As Kim writes below, GenericPrincipal and GenericIdentity are not native to Silverlight and we no longer define them.

If you subclass from UserBase make sure to mark any properties you need on the client with the [DataMember] attribute so they will serialize.
 
If you implement your own IPrinicpal, you can make it serializable by doing the following:
  1. Have the class "implement" the IKnownType interface.  (This is a marker interface, so no actual implementation is required.)
  2. Mark the class with the [DataContract] attribute
  3. Mark each serializable property with the [DataMember] attribute.

 



Edited by ting - 09-Jul-2010 at 5:19pm]]> Fri, 02 Jul 2010 20:26:16 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7504#7504 IEntityLoginManager Serialization Issues : We are working on upgrading to... http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7498#7498 Author: midnit
Subject: 1936
Posted: 02-Jul-2010 at 9:39am

We are working on upgrading to DevForce 2010. Our IEntityLoginManager worked fine in 2009 and I expect is not the issue here but I am at a loss at what IS causing the issue. Please advise.
 
"The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http://ideablade.com/EntityModel:LoginResult. The InnerException message was 'Element 'http://ideablade.com/EntityModel:Principal' contains data of the 'http://schemas.datacontract.org/2004/07/System.Security.Principal:GenericPrincipal' data contract. The deserializer has no knowledge of any type that maps to this contract. Add the type corresponding to 'GenericPrincipal' to the list of known types - for example, by using the KnownTypeAttribute attribute or by adding it to the list of known types passed to DataContractSerializer.'.  Please see InnerException for more details."
]]> Fri, 02 Jul 2010 09:39:07 -700 http://www.ideablade.com/forum/forum_posts.asp?TID=1936&PID=7498#7498