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System data entity dynamicproxies serialization error

Proxies come in handy in a lot of cases but make things like serialization more difficult since the actual object being. Another way that works independent of the database configuration is by doing a deep clone of your object( s). EF' s ' DynamicProxies' are automatically ignored. var ionPairCollection = new IonPairCollection { IonPairs. Your POCO entities are perfectly serializable. Your problem is that the dynamic proxies the EF runtime creates for you are usually not. You can set the context. ProxyCreationEnabled to false but then you lose. When I attempt to execute the following web api method below I get the following error message:. up vote 79 down vote accepted. When you see an object like: System. Entity Framework has created this object because it tracks when the objects has changed so when you call. SaveChanges ( ) it can optimize what to do. The downfall of this is that you aren' t actually using the specific object you defined, thus Data Contracts and. DynamicProxies indicate that you are using lazy loading and the error could be caused by the context being.

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  • Video:Dynamicproxies error data

    Serialization entity error

    of the ORM and queries will be run for data you may not even use - may not be a big issue in a small system, but. When you know that you need to serialize from a particular context, you can disable proxy creation for that. class and therefore serialization is not a problem. instead of { System. The virtual properties in your model cause an infinite loop when you try to serialize them to JSON, since Review and Topic have references to BlockDeveloper and vice versa. You should use eager loading to get the Review. This problem generally comes when you try to serialize data which cannot be done by WCF. Why the first answer works fine for some casea because if you will turn off the proxy creation WCF will know which data need to be. Well in order to transfer the data into the new object you must call the Get method on all properties within the old entity, thus triggering lazy loading. For this you can use 3rd party packages such as AutoMapper but they can. from Entity Framework via WCF, but am receiving the following exception: There was an error while trying to serialize parameter org/ : GetAllResult. The InnerException message was ' Type ' System. and I always get this error: The ' ObjectContent` 1' type failed to serialize the response body for content type ' application/ xml; charset= utf- 8'. InvalidOperationException.