structs in C# and constructors

Question

I have data that I would ideally want to represent as so:

LinkedList<T>[]

However, you cannot do that on generics, so I wrapped it in a struct:

    public struct SuitList                      
    {
        LinkedList<T> aList;

        public SuitList()
        {
            aList = new LinkedList<T>();
        }
    }

Now, in my class I have

   SuitList[] myStructList;      //there is only 4 indices of myStructList

How do I initialize aList, inside my constructor for the class? I tried this as follows:

myStructList = new SuitList[4];

for(int i = 0; i < 4; i++)
{
    myStructList[i] = new SuitList();
}

The compiler gave me an error saying Structs cannot contain explicit parameterless constructors. Are there better ways of doing this? Thanks for the help in advance.

That sounds like a very strange construct. Why would you want an array of linked lists? — SLaks
– SLaks, Commented Feb 5, 2012 at 23:38
What error did you receive when you tried to use a LinkedList<T>[]? There's nothing wrong with it. — phoog
– phoog, Commented Feb 5, 2012 at 23:44
@Slaks, My array is holding 4 linked-lists where each linked-list has a common indexed attribute. Thus, I have convenient access to each list with a specified attribute. — CodeKingPlusPlus
– CodeKingPlusPlus, Commented Feb 6, 2012 at 0:39

SLaks · Accepted Answer · 2012-02-05 23:38:27Z

7

C# is not Java.
You can do that just fine with generics.

To answer your question, you should create a class, not a struct.

answered Feb 5, 2012 at 23:38

SLaks

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Comments

Lucas B · Accepted Answer · 2015-07-28 21:52:20Z

0

You can do this without it having to be a class.

public struct SuitList<T>
    {
        LinkedList<T> aList;

        public SuitList(int nothing = 0)
        {
            aList = new LinkedList<T>();
        }
    }

answered Jul 28, 2015 at 21:52

Lucas B

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