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  1. C# Driver
  2. CSHARP-5422

Querying polymorphic type causes NotSupportedException

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    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Unknown Unknown
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    • Affects Version/s: None
    • Component/s: None
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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?

      Summary

      After upgrade from C# Driver v2.30.0 to v3.0.0 I get a NotSupportedException when trying to query a collection for a derived type using collection.OfType<DervivedType>().Find(...).

      MongoDB-Server version: 6.0

      MongoDB C# Driver version: 3.0.0

      .NET version: 8.0

      How to Reproduce

      Code that reproduces the issue: https://github.com/mindleaving/mongodb-csharp-v3-polymorphism-issue __

      Additional Background

      I use BsonKnownTypeAttribute to declare derived types on parent class. Using BsonDiscrimnatorAttribute doesn't solve the issue. No class maps are set up.

            Assignee:
            robert@mongodb.com Robert Stam
            Reporter:
            mindleaving@gmail.com Jan Scholtyssek
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              Created:
              Updated:
              Resolved: