Tek Fotoluk İpucu-25 (Runtime Value ve Extension Method)

Eylül 7. 2011 02:16

Yukarıda yer alan örneğinize istinadan benim yorumum aşağıda yer aldığı gibi olurdu.

using System;

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            MyClass<DateTime> mc = new MyClass<DateTime> { MyProperty = 10, MyGenericProperty = DateTime.Parse("23.04.1923") };
            Console.WriteLine(mc.GetRuntimeValue<int>("MyProperty").ToString());
            Console.WriteLine(mc.GetRuntimeValue<int>("MyProperty1", -1).ToString());
            Console.WriteLine(mc.GetRuntimeValue<string>("MyProperty", "test").ToString());

            Console.WriteLine(mc.GetRuntimeValue<DateTime>("MyGenericProperty").ToString());
            Console.WriteLine(mc.GetRuntimeValue<DateTime>("MyGenericProperty1", DateTime.Now).ToString());
            Console.WriteLine(mc.GetRuntimeValue<string>("MyGenericProperty", "test").ToString());
            Console.ReadKey();
        }
    }

    static class RuntimeExtensions
    {
        public static TValue GetRuntimeValue<TValue>(this object owner, String propertyName, TValue defaultValue = default(TValue))
        {
            System.Reflection.PropertyInfo propertyInfo = owner.GetType().GetProperty(propertyName);
            if (propertyInfo != null && propertyInfo.PropertyType.Equals(typeof(TValue)))
                defaultValue = (TValue)propertyInfo.GetValue(owner, null);
            return defaultValue;
        }
    }

    class MyClass<T>
    {
        public int MyProperty { get; set; }

        public T MyGenericProperty { get; set; }
    }
}

Serkan KARAKUŞ