C# How to best add elements of string array to generic List

Question

If I have an array of strings such as:

string[] strArr = {"First", "Second", "Third"};

...and I want to add these to a generic List

List<string> strList = new List<string>();

what is the best way to go about it?

Option 1: Loop with for or foreach, using .Add method.

Option 2: .AddRange method (ref example on MSDN here):

strList.AddRange = new List<string>(strArr);

Or other options?

Jonesopolis · Accepted Answer · 2015-03-27 20:18:28Z

7

Use the constructor that takes an IEnumerable:

List<string> strList = new List<string>(strArr);

or call ToList() on your array:

List<string> strList = strArr.ToList();

which is probably the most common way to do it.

answered Mar 27, 2015 at 20:18

Jonesopolis

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2 Comments

i do not see the method array.ToList() learn.microsoft.com/en-us/dotnet/api/system.array?view=net-5.0 It also gets flagged as an error . new List<string>(ary) does work

ToList() is an extension off IEnumerable<T> from System.Linq namespace