How do you concatenate Lists in C#?

Question

If I have:

List myList1;
List myList2;

myList1 = getMeAList();
// Checked myList1, it contains 4 strings

myList2 = getMeAnother         


        

Answer 1

Try this:

myList1 = myList1.Concat(myList2).ToList();

Concat returns an IEnumerable that is the two lists put together, it doesn't modify either existing list. Also, since it returns an IEnumerable, if you want to assign it to a variable that is List, you'll have to call ToList() on the IEnumerable that is returned.