Public readonly field v.s. get-only property

问题

Are there cases when you would want a public readonly field v.s. a get-only auto-implemented property?

public class Foo
{
    public readonly string Hello;

    public string Hello2 { get; }
}

Both can only be set during the constructor and both offer readonly access outside of the class.. I'm a little tired so I might be missing something.

回答1:

One reason would be for data binding - .net implements binding to properties but not to public fields.

Some discussion here : Why can't we use public fields for data binding in C#?

回答2:

Making it a property rather than a field means it can be used on interfaces.

The exact implementation (although auto-properties don't really have much implementation...) is also abstracted, so you could in the future base it on a combination of fields without breaking (compile) compatibility.

来源：https://stackoverflow.com/questions/40039175/public-readonly-field-v-s-get-only-property