Sum of items from List in C#

Public Class MyList

{

Public  double Amount{get;set;}

} 

//in controller
List<MyList>myList=new List<MyList>();

 myList.add(new List<MyList>()

{

 Amount=10, 

});

 myList.add(new List<MyList>()

 { 

   Amount=20,  }); 

double total = myList.Sum(item => item.Amount);