How do you implement custom exceptions in C#?

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Ponu Maurya · Answer

Answer:
Inherit from Exception and add custom properties if needed.
public class InvalidOrderException : Exception {
    public InvalidOrderException(string msg) : base(msg) { }
}
Throw using:
throw new InvalidOrderException("Order ID is invalid.");
Always include Serializable and override constructor if exception will cross AppDomains.

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How do you implement custom exceptions in C#?

Ponu Maurya

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