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Record

Definition

Define a reference type. C# 10 allows the record class syntax as a synonym to clarify a reference type, and record struct to define a value type.

Primary constructor

When you declare a primary constructor on a record, the compiler generates public properties for the primary constructor parameters.

public record Person(string FirstName, string LastName);

// with the generated properties it is equivalent to
public record Person
{
    public required string FirstName { get; init; }
    public required string LastName { get; init; }
};