Daniel Wertheim • 9/18/2021

C# - Always valid value objects

This technical article critiques a simplistic approach to C# value objects using records. It demonstrates that the default positional syntax for records does not enforce validity. The author provides a solution by implementing a custom constructor with validation logic (e.g., ensuring phone number parts contain only digits) to guarantee objects are always in a valid state, while retaining the benefits of records like immutability.

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#domain-driven design #validation #c