using System;

using static System.Console;

using System.Reflection;

​

public class Program {

    public static void Main() {

        var teste = new Teste();

        teste.ListProperties();

        WriteLine(teste.GetPropValue<int>("y"));

        var teste2 = new Teste2();

        teste2.ListFields();

    }

}

​

public class Teste {

    public int x { get; set; } = 10;

    public int y { get; set; } = 10;

}

​

public class Teste2 {

    public int x = 10;

    public int y = 10;

}

​

public static class ObjectExt {

    public static void ListProperties(this object obj) {

        foreach(var prop in obj.GetType().GetProperties()) {

            WriteLine($"{prop.Name} = {prop.GetValue(obj, null)}");

        }

    }

    public static void ListFields(this object obj) {

        foreach(var field in obj.GetType().GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)) {

            WriteLine($"{field.Name} = {field.GetValue(obj)}");

        }

    }

    public static T GetPropValue<T>(this object value, string propertyName) {

        if (value == null) { throw new ArgumentNullException("value"); }

        if (String.IsNullOrEmpty(propertyName)) { throw new ArgumentException("propertyName"); }

        PropertyInfo info = value.GetType().GetProperty(propertyName);

        return (T)info.GetValue(value, null);

    }

    public static FieldInfo GetFieldInfo(this Type objType, string fieldName, BindingFlags flags, bool isFirstTypeChecked = true) {

        FieldInfo fieldInfo = objType.GetField(fieldName, flags);

        if (fieldInfo == null && objType.BaseType != null) fieldInfo = objType.BaseType.GetFieldInfo(fieldName, flags, false);

        if (fieldInfo == null && isFirstTypeChecked) throw new MissingFieldException(String.Format("Field {0}.{1} could not be found with the following BindingFlags: {2}", objType.ReflectedType.FullName, fieldName, flags.ToString()));

        return fieldInfo;

    }

}