title: Following Regex pattern not working in Infopath form validation
body: <pre><code>^[^0-9]+$
  </code></pre>
  <p><img src="https://www.debuggex.com/i/BlMmvt6zXgBR1xWw.png" alt="Regular expression visualization" /></p>
  <p><a href="https://www.debuggex.com/r/BlMmvt6zXgBR1xWw" rel="nofollow noreferrer">Debuggex Demo</a></p>
  <p><strong>my requirements below</strong></p>
  <ul>
  <li>Allow only Character like [a-z and A-z]</li>
  <li>Not allow numbers</li>
  </ul>
  <p><strong>Following values not allowed</strong></p>
  <p>Test123</p>
  <p>12345Test</p>
  <p>1Test12345678</p>
  <p>T1E2S3T</p>
  <p>1234</p>
  <p><strong>Info path Show Invalid pattern</strong></p>
  <p><img src="https://i.stack.imgur.com/JmZEs.png" alt="enter image description here" /></p>