other way to add item to List<>

In my other question You can see code of my arr structure and PriorityQueue collection. I n开发者_运维技巧ormally add items to this collection like that:

arr.PriorityQueue.Add(new element((value(item, endPoint) + value(startPoint, item)),item));

I am curious that is other way to do this (add element(which is struct) object to List) ? In lambda way for example ? I just eager for knowledge :)

To add a new object to a list, you need to instantiate it.

The way you are doing it is correct, there is not lambda syntax or other syntactic sugar for this operation.

Another way is to use List.AddRange. It accepts an IEnumerable<T>, so you can pass it any collection of T, including arrays or the results of Linq expressions:

importantItems.AddRange(allItems.Where(item => item.IsImportant));

  arrays arr = new arrays();
        arr.PriorityQueue = new List<element>(
            new [] { 
                new element {node = 1, priority =2 }, 
                new element { node = 2, priority = 10}
                //..
                //..
            });


        arrays arr2 = new arrays();
        arr2.PriorityQueue = new List<element>(
            arr.PriorityQueue
            );


        arrays arr3 = new arrays();
        arr3.PriorityQueue = new List<element>(arr2.PriorityQueue.FindAll(z => (1 == 1)));


        arrays arr4 = new arrays();
        arr4.PriorityQueue = new List<element>(arr3.PriorityQueue.ToArray());