Lambda expression to convert list int to list string in c#

Question

Lambda expression to convert list int to list string

List<int> lstNum = new List<int>(new int[] { 3, 6, 7, 9 });

Answer 1

You can use the following to convert a List of int to a List of string:

List<string> lstStr = lstNum.ConvertAll<string>(x => x.ToString());

Answer 2

No need for lambda:

var lstNum = new [] { 3, 6, 7, 9 }.ToList();

var lstStr = lstNum.ConvertAll(Convert.ToString);