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  1. C# Driver
  2. CSHARP-5293

BSONDocumentSerializer Invalid Cast

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    • Type: Icon: Bug Bug
    • Resolution: Gone away
    • Priority: Icon: Major - P3 Major - P3
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    • Dotnet Drivers
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      1. What would you like to communicate to the user about this feature?
      2. Would you like the user to see examples of the syntax and/or executable code and its output?
      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?
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      We’re upgrading some parts of our software to the latest drivers (2.28) from quite old ones (2.9.2). We’re using fully dynamic model search/count as we let our customers build their own. Since the upgrade this (simplified) code throws “System.InvalidCastException: ‘Unable to cast object of type ‘MongoDB.Bson.Serialization.Serializers.ObjectSerializer’ to type ‘MongoDB.Bson.Serialization.IBsonDocumentSerializer’.’”

      var coll = _mongoDB.GetCollection<dynamic>( "SomeCollectin" );
IFindFluent<dynamic,dynamic> filterfind = coll.Find( _ => true );
return filterfind.CountDocuments();

      Anything we should be doing different with this new drivers?

      Linked post

            Assignee:
            robert@mongodb.com Robert Stam
            Reporter:
            rishit.bhatia@mongodb.com Rishit Bhatia
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              Created:
              Updated:
              Resolved: