C# - Convert String array to String List [duplicate]

Question

string[] val_1;

List<string> val_2;

I'm trying to convert string array to string list. I need an effective way.

Both should be in string list format to compare both.

"Both should be in string List format to compare both" Why you can't compare a list with an array? For example: val_1.SequenceEqual(val_2). — Tim Schmelter
– Tim Schmelter, Commented Nov 26, 2018 at 14:21
@PrasadTelkikar that specific question is about an Array object, but it still definitely is a duplicate. — Timmeh
– Timmeh, Commented Nov 26, 2018 at 14:27

Martin Zikmund · Accepted Answer · 2018-11-26 14:22:14Z

1

There are two options.

Using LINQ ToList() extension method - add using System.Linq; to the top of your source file and then do:

var list = array.ToList();

Second option is to directly initialize the list via the constructor:

var list = new List<string>(array);

There is no difference in performance between these two approaches, both will take linear time relative to the number of items in the array (O(N)).

answered Nov 26, 2018 at 14:22

Martin Zikmund

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Comments

Timmeh · Accepted Answer · 2018-11-26 14:22:00Z

0

Use System.Linq's ToList method:

val_2 = val_1.ToList();

Make sure val_1 is initialized though!

answered Nov 26, 2018 at 14:22

Timmeh

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