使用Lambda和Func <>的动态构造函数

Question

I have a multithreaded app that is creating a list of strings on a BlockingCollection queue, I want to take that list of strings and convert it to a collection of item objects in one or 2 steps

Is it possible to create a func<> or lamda method to achieve this type of result

 public class item
{
    public string name { get; set; }

    public item(string nam)
    {
        name = nam;
    }


}

IList<string> alist = new string[] {  "bob","mary"};

Where you take a Ilist<> or IEnumerable<> of type string and return IList

So for the single item Func<>

Func<string, item> func1 = x => new item(x);

But essetially the signiture would look like

Func<IEnumerable<string>,IList<item>> func2 = x=> x.ForEach(i => func1(i));

Am I trying to put a round peg in sqaure hole or is my syntax/logic just wrong

Thanks in advance

Answer 1

Are you just trying to "reshape" the IList<string> as IList<item> ?

IList<string> listOfStrings = new string[] {  "bob","mary"};
IList<item> listOfItems = listOfStrings.Select(s => new item(s)).ToList();

Answer 2

您将必须使用Select投影而不是ForEach ，然后使用ToList()将生成的IEnumerable<item>转换为列表-这应该起作用：

Func<IEnumerable<string>,IList<item>> func2 = x => x.Select( i => new item(i)).ToList();

Answer 3

IEnumerable<item> myfunc(IEnumerable<string> stringlist)
{
    var q = from s in stringlist
            select new item(s);
    return q.ToList();
}