Check if list contains element that contains a string and get that element

Question

While searching for an answer to this question, I\'ve run into similar ones utilizing LINQ but I haven\'t been able to fully understand them (and thus, implement them), as I

Answer 1

You could use Linq's FirstOrDefault extension method:

string element = myList.FirstOrDefault(s => s.Contains(myString));

This will return the fist element that contains the substring myString, or null if no such element is found.

If all you need is the index, use the List class's FindIndex method:

int index = myList.FindIndex(s => s.Contains(myString));

This will return the the index of fist element that contains the substring myString, or -1 if no such element is found.