Anonymous Pattern matching.cs

Console.WriteLine("Anonymous pattern matching");

var text = "Hello";
var person = new PersonRecord("Andreas", "Klapperich", 11);


var output = new { Text = text, Person = person } switch
{
    { Text: { }, Person: null } content => $"{content.Text} Unknown",
    { Text: { }, Person: { Name: "Andreas", LastName: "Klapperich", Age:> 0 } } content => $"{content.Text} ANDREAS KLAPPERICH",
    { Text: { }, Person: { Name: { }, LastName: { } } } content => $"{content.Text} {content.Person.Name} {content.Person.LastName}",
    { Text: { }, Person: { Name: null, LastName: { } } } content => $"{content.Text} ? {content.Person.LastName}",
    { Text: { }, Person: { Name: { }, LastName: null } } content => $"{content.Text} {content.Person.Name} ?",
    { Text: { }, Person: { } } content => $"{content.Text} everybody",
    _ => "Something went wrong"
};

Console.WriteLine(output);


if (new { Text = text, Person = person } is { Text: "Hello", Person: { Name: "Andreas" } } ifContent)
{
    Console.WriteLine(ifContent.Text);
    Console.WriteLine(ifContent.Person.Name);
    Console.WriteLine(ifContent.Person.LastName);
}


public record PersonRecord(string Name, string LastName, int Age);

Anonymous Pattern matching