Action delegates as configuration objects

gistfile1.txt

using System;

var configuredWhatever = ConfigurationTest(x =>
{
    x.Option1 = "Overwritten by caller";
    x.Option2 = "Provided by caller";
});
Console.WriteLine(configuredWhatever);

Whatever ConfigurationTest(Action<Whatever> configureWhatever)
{
    var whatever = new Whatever { Option1 = "Provided by method" };

    configureWhatever.Invoke(whatever);

    return whatever;
}

class Whatever
{
    public string HasDefaultValue { get; set; } = "The default value";
    public string Option1 { get; set; }
    public string Option2 { get; set; }

    public override string ToString()
    {
        return $"HasDefaultValue={HasDefaultValue}, Option1={Option1}, Option2={Option2}";
    }
}

HasDefaultValue=The default value, Option1=Overwritten by caller, Option2=Provided by caller