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How to create a comma-separated list from IList"string" or IEnumerable"string" in C#?

Steilla Mitchel36512-Jul-2023

How to create a comma-separated list from IList<string> or IEnumerable<string> in C#?

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Updated on 13-Jul-2023
Steilla Mitchel

Steilla Mitchel

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Aryan Kumar

Aryan Kumar

13-Jul-2023

Sure, here is how to create a comma separated list from IList<string> or IEnumerable<string> in C#:

C#

using System;

public class CreateCommaSeparatedList
{
    public static string CreateCommaSeparatedList(IEnumerable<string> strings)
    {
        // Create a StringBuilder to hold the comma separated list.
        StringBuilder sb = new StringBuilder();

        // Iterate over the strings and append them to the StringBuilder, separated by commas.
        foreach (string string in strings)
        {
            sb.Append(string);
            sb.Append(",");
        }

        // Remove the trailing comma.
        sb.Length -= 1;

        // Return the comma separated list.
        return sb.ToString();
    }

    public static void Main(string[] args)
    {
        // Create a list of strings.
        List<string> strings = new List<string> { "hello", "world", "foo", "bar" };

        // Create a comma separated list from the strings.
        string commaSeparatedList = CreateCommaSeparatedList(strings);

        // Print the comma separated list.
        Console.WriteLine(commaSeparatedList); // This will print "hello,world,foo,bar"
    }
}

This code first creates a list of strings. Then, it calls the CreateCommaSeparatedList() method to create a comma separated list from the strings. Finally, the code prints the comma separated list to the console.

The CreateCommaSeparatedList() method takes an IEnumerable<string> as a parameter and returns a string. The method first creates a StringBuilder to hold the comma separated list. Then, the method iterates over the strings in the IEnumerable<string> and appends them to the StringBuilder, separated by commas. Finally, the method removes the trailing comma from the StringBuilder and returns the comma separated list.

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