How to Convert a List of Strings to a List of Integers in C# - Step by Step Examples

How to Convert a List of Strings to a List of Integers in C# ?

Answer

To convert a list of strings to a list of integers in C#, you can use LINQ to iterate over each string and parse it to an integer using the int.Parse() method.

✐ Examples

1 Convert List of Strings to List of Integers

In this example,

We have a list of strings named stringList.
We use LINQ to iterate over each string in the list and parse it to an integer using the int.Parse() method.
The result is a list of integers.

C# Program

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        List<string> stringList = new List<string> {"1", "2", "3", "4", "5"};
        List<int> intList = stringList.Select(s => int.Parse(s)).ToList();
        Console.WriteLine("List of integers: " + string.Join(", ", intList));
    }
}

Output

List of integers: 1, 2, 3, 4, 5

Summary

In this tutorial, we learned How to Convert a List of Strings to a List of Integers in C# language with well detailed examples.

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