title: How to convert an input string to uppercase in c#
body: <pre><code>string choice = String.ToUpper(Console.ReadLine());
  </code></pre>
  
  <p>I want to input a string and convert it to upper case. However, there's an error that states : </p>
  
  <blockquote>
    <p>cannot convert from 'string' to System.Globalization.CultureInfo'</p>
  </blockquote>
  
  <p>that appears when I hover over the <code>Console.ReadLine()</code>. Why doesn't this work , and what fixes are there? And is there another way to do this ?</p>