Split a delimited string into a List in C#

This post will discuss how to split a delimited string into a List in C#.

In LINQ, you can use the String.Split() method to break a delimited string into substrings based on the specified delimiter. To convert the resultant string array into a list, you may call the ToList() method.

using System;

using System.Linq;

using System.Collections.Generic;

public class Example

{

public static void Main()

{

string s = "1,2,3,4,5";

List<string> result = s?.Split(',').ToList();

Console.WriteLine(String.Join(", ", result)); // 1, 2, 3, 4, 5

}

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The above solution returns a list of strings. To convert each string into an integer, invoke the Enumerable.Select() method before ToList() method.

using System;

using System.Linq;

using System.Collections.Generic;

public class Example

{

public static void Main()

{

string s = "1,2,3,4,5";

List<int> result = s?.Split(',').Select(Int32.Parse).ToList();

Console.WriteLine(String.Join(", ", result)); // 1, 2, 3, 4, 5

}

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Another option to convert an array to a list of a different type is using the Array.ConvertAll() method. The following code example demonstrates its usage. Note that the solution uses a List constructor for converting the array into a list:

using System;

using System.Collections.Generic;

public class Example

{

public static void Main()

{

string s = "1,2,3,4,5";

List<int> result = new List<int>(Array.ConvertAll(s?.Split(','), int.Parse));

Console.WriteLine(String.Join(", ", result)); // 1, 2, 3, 4, 5

}

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That’s all about splitting a delimited string into a List in C#.

Split a delimited string into a List in C#

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