Properties

•  A property is a class member that encapsulate a getter/setter for accessing a filed.  
• As a best practice, we must declare fields as private and create public properties to provide access to them. 
• A property encapsulates a get and a set method.

    public class Customer
    {
        private string _name;
        public string Name
        {
            get { return _name; }
            set { _name = value; }
        }
    }

• Inside the get/set methods we can have some logic.

    public class Person
    {
        public DateTime BirthDate { get; set; }
        public int Age
        {
            get
            {
                var timespan = DateTime.Today - BirthDate;
                var years = timespan.Days / 365;
                return years;
            }
        }
    }

• If you don’t need to write any specific logic in the get or set method, it’s more efficient to create an auto-implemented property. An auto-implemented property encapsulates a private field behind the scene. So you don’t need to manually create one. The compiler creates one for you.

    public class Person
    {
        public DateTime BirthDate { get; set; }
    }

• Auto-implemented properties are required to specify both get and set, so if you want an auto-implemented property to be read-only, you must use private setters. 

    public class Person
    {
        public DateTime BirthDate { get; private set; }
    }