Property Patterns

A property pattern checks selected properties on an object.

PropertyPatterns.cs

using System;

class Order
{
    public string Status { get; }
    public int Total { get; }

    public Order(string status, int total)
    {
        Status = status;
        Total = total;
    }

    public override string ToString()
    {
        return Status + ":" + Total;
    }
}

class Program
{
    static void Main()
    {
        int total = ;
        Order order = new Order("paid", total);
        string result = order is { Status: "paid", Total: >= 100 } ? "priority" : "standard";

        Console.WriteLine($"total={total}");
        Console.WriteLine($"result={result}");
    }
}

using System;

class Order
{
    public string Status { get; }
    public int Total { get; }

    public Order(string status, int total)
    {
        Status = status;
        Total = total;
    }

    public override string ToString()
    {
        return Status + ":" + Total;
    }
}

class Program
{
    static void Main()
    {
        int total = ;
        Order order = new Order("paid", total);
        string result = order is { Status: "paid", Total: >= 100 } ? "priority" : "standard";

        Console.WriteLine($"total={total}");
        Console.WriteLine($"result={result}");
    }
}

using System;

class Order
{
    public string Status { get; }
    public int Total { get; }

    public Order(string status, int total)
    {
        Status = status;
        Total = total;
    }

    public override string ToString()
    {
        return Status + ":" + Total;
    }
}

class Program
{
    static void Main()
    {
        int total = ;
        Order order = new Order("paid", total);
        string result = order is { Status: "paid", Total: >= 100 } ? "priority" : "standard";

        Console.WriteLine($"total={total}");
        Console.WriteLine($"result={result}");
    }
}

property pattern A property pattern matches an object by reading named properties.