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 });

one solution could be List<string> newList = lstNum.Select(i => Convert.ToString(i)).ToList(); — Ousmane D.
– Ousmane D., Commented May 8, 2017 at 1:25

eugenioy · Accepted Answer · 2017-05-08 01:15:43Z

13

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());

answered May 8, 2017 at 1:15

eugenioy

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1 Comment

The <string> is unnecessary

Willy David Jr · Accepted Answer · 2017-05-08 01:57:00Z

3

This will work as well:

List<string> lstString = lstNum.Select(x => x.ToString()).ToList();

answered May 8, 2017 at 1:57

Willy David Jr

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Slai · Accepted Answer · 2017-05-08 02:09:10Z

3

No need for lambda:

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

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

answered May 8, 2017 at 2:03

Slai

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