C# – Converting List to Comma Separated String

c++collections

Is there a way to take a List and convert it into a comma separated string?

I know I can just loop and build it, but somehow I think some of you guys a more cool way of doing it?

I really want to learn these types of 'tricks', so please explain or link to the docs on the method you use.

Best Answer

List<int> list = ...;
string.Join(",", list.Select(n => n.ToString()).ToArray())

Related Solutions

C# – Convert IEnumerable to Comma Separated String

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

class C
{
    public static void Main()
    {
        var a = new []{
            "First", "Second", "Third"
        };

        System.Console.Write(string.Join(",", a));

    }
}

C# – How to Convert a Comma Separated Values String into a List

var intValues = line.Split(',').Select(x => Convert.ToInt32(x)).ToList();

Update

To ensure your code would be able to process strings like 1,2,3,,,4,5,6 you can use overload of String.Split method

var intValues = line.Split(new[] {','}, StringSplitOptions.RemoveEmptyEntries)
                    .Select(x => Convert.ToInt32(x))
                    .ToList();

Best Answer

Related Solutions

C# – Convert IEnumerable to Comma Separated String

C# – How to Convert a Comma Separated Values String into a List

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