title: Detect if a string contains uppercase characters
body: <p>Is there an alternative to using a regular expression to detect if a string contains uppercase characters? Currently I'm using the following regular expression:</p>
  
  <pre><code>Regex.IsMatch(fullUri, "[A-Z]") 
  </code></pre>
  
  <p>It works fine but I often hear the old adage "If you're using regular expressions you now have two problems".</p>