Get name of a property and declaring class

How can I use reflection to get the name and declaring class of a property of a generic type.

How can I use reflection to get the name and declaring class of a property of a generic type.

The purpose is to get an exception if I read a property where nothing has been written so far.

One of the problems is that the check must be independent of the declaring class.

value.GetType().DeclaringType is always null.

using System;

namespace TestCodeContract
{

    public struct CheckForNull<T> where T : struct
    {
        private T? backingField;

        public static implicit operator T(CheckForNull<T> value)
        {
            if (!(value.backingField.HasValue))
            {
                var t1 = value.GetType().DeclaringType; // always null.

                var propertyName = "Delta"; // TODO get from Reflection
                var className = "ContractClass"; // TODO get from Reflection
                var msg = String.Format("Proprety '{0}' in class '{1}' is not initialized", propertyName, className);
                throw new ApplicationException(msg);
            }
            return value.backingField.Value;
        }

        public static implicit operator CheckForNull<T>(T value)
        {
            return new CheckForNull<T> { backingField = value };
        }
    }

    public class ContractClass
    {
        public CheckForNull<int> Delta { get; set; }

        public void Test1()
        {
            int x = Delta; // Wanted: "Property 'Delta' in class 'ContractClass' is not initialized"
        }
    }
}