C# Online Compiler | .NET Fiddle

<no name> by Anonymous

using System;
using System.Collections.Generic;
using System.Linq;
					
 public class MyProp<T> where T : new()
    {
        private T _value;

        public T Value
        {
            get
            {
                return _value;
            }
            set
            {
                _value = value;
            }
        }

        public static implicit operator T(MyProp<T> value)
        {
            if (EqualityComparer<MyProp<T>>.Default.Equals(value, default(MyProp<T>)))
            {
                value = new MyProp<T> { Value = new T() };
            }
            return value.Value;
        }

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

    class SomeClass
    {
        public MyProp<List<String>> SomeProperty { get; set; }
    }

    public class Program
    {
        public static void Main(string[] args)
        {
            SomeClass instance = new SomeClass();
            List<String> test = instance.SomeProperty;
			Console.WriteLine("sdfasdf");
			Console.WriteLine(test);
            Console.WriteLine(instance.SomeProperty.ToString());
        }
    }

​x
 
using System;
using System.Collections.Generic;
using System.Linq;
                    
 public class MyProp<T> where T : new()
    {
        private T _value;
​
        public T Value
        {
            get
            {
                return _value;
            }
            set
            {
                _value = value;
            }
        }
​
        public static implicit operator T(MyProp<T> value)
        {
            if (EqualityComparer<MyProp<T>>.Default.Equals(value, default(MyProp<T>)))
            {
                value = new MyProp<T> { Value = new T() };
            }
            return value.Value;
        }
​
        public static implicit operator MyProp<T>(T value)
        {
            return new MyProp<T> { Value = value };
        }
    }
​
    class SomeClass
    {
        public MyProp<List<String>> SomeProperty { get; set; }
    }
​
    public class Program
    {
        public static void Main(string[] args)
        {
            SomeClass instance = new SomeClass();
            List<String> test = instance.SomeProperty;
            Console.WriteLine("sdfasdf");
            Console.WriteLine(test);
            Console.WriteLine(instance.SomeProperty.ToString());
        }
    }

System.AggregateException: One or more errors occurred. ---> System.Exception: Exception of type 'System.Exception' was thrown.
   at Program.<ThirdMethod>d__3.MoveNext() in c:\Windows\Temp\mdivxxfz.0.cs:line 19
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at Program.<FirstMethod>d__0.MoveNext() in c:\Windows\Temp\mdivxxfz.0.cs:line 8
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at System.Threading.Tasks.Task.Wait()
   at Program.Main() in c:\Windows\Temp\mdivxxfz.0.cs:line 25
---> (Inner Exception #0) System.Exception: Exception of type 'System.Exception' was thrown.
   at Program.<ThirdMethod>d__3.MoveNext() in c:\Windows\Temp\mdivxxfz.0.cs:line 19
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
   at Program.<FirstMethod>d__0.MoveNext() in c:\Windows\Temp\mdivxxfz.0.cs:line 8<---

Cached Result
Last Run:	6:23:07 pm
Compile:	0.11s
Execute:	1.021s
Memory:	144kb
CPU:	0s

View IL Code