Re: [fluent-nhib] Unable to cast object of type 'NHibernate.Collection.Generic.PersistentGenericBag to type 'System.Collections.Generic.List

[Rene Felix Correa]

the faster solution is before you serialize this object call the method .ToList();

if your problem is deserialize, make a deserialize with the type list, and set to a IList, like this:

XmlSerializer serializer = new XmlSerializer(typeof(new List<Class5>())); 
 
StreamReader reader = new StreamReader(caminho); 
IList<Class5> listClass = (List<Class5>)serializer.Deserialize(reader); 

On Mon, May 20, 2013 at 12:26 AM, Murali Mohan <moha...@gmail.com> wrote:

I am trying to load the domain class by deserializing an xml file. So I have used List in the domain class. But when I try to save the object using Session object then it is failing with exception "Unable to cast object of type 'NHibernate.Collection.Generic.PersistentGenericBag`1[MyFirstMapTest.Class5]' to type 'System.Collections.Generic.List`1[MyFirstMapTest.Class5]'." This issue was posted in some of the previous discussion and the answer was to use use IList<int> instead of List<int>(http://stackoverflow.com/questions/1638593/unable-to-cast-object-of-type-nhibernate-collection-generic-persistentgenericbag)

 

But, If I use IList then I am unable to Deserialize the xml in to Domain class. It gives another error "Cannot serialize member xxxxx of type System.Collections.Generic.IList`1[[xxxxxxxxxx, Examples, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]] because it is an interface."

I have tried to use PersistentGenericBag instead of List but PersistentGenericBag is not serializable. So Deserialization is not working.

 

How can I resolve this issue? Thank you for looking at this issue.

 

Regards,

Murali

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Rene Felix Correa
Analista Desenvolvedor
http://renefc3.wordpress.com

[Murali Mohan]

Actually the Class5 is not used in a list but it has properties of type List. So we are trying to deserialize as an object.

I have also posted the same question HERE with an example. Could you please check it?