Convert All Strings in a List to Upper Case using LINQ in C#

Published on August 15, 2013 by abundantcode

Filed under LINQ

Last modified August 15, 2013

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Below is a sample code snippet which demonstrates on how to convert all strings in a list to upper case using LINQ in C#?

Convert All Strings in a List to Upper Case using LINQ in C#

using System;

using System.Collections.Generic;

using System.Data;

using System.Linq;

namespace AbundantCode


internal class Program


//Convert All Strings in a List to Upper Case using LINQ in C#

private static void Main(string[] args)


List<string> Names = new List<string>();









var result = Names.Select(m => m.ToUpper());

foreach(var item in result)






1 Comment

  1. Mo

    you can use “ConvertAll”

    myList = myList.ConvertAll(d => d.ToUpper());

    June 30, 2015 - 7:47 am – Reply

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