title: How do I maintain ModelState errors when using RedirectToAction?
body: <p>I have some code that saves a ticket in our system.  If there is an error it does a <code>RedirectToAction()</code>.  The problem is that I don't seem to have my errors in the new action. How can I fix this?</p>
  <pre><code> ModelState.AddModelError(&quot;_FORM&quot;, &quot;Unable to save ticket&quot;);
   ModelState.AddModelError(&quot;_FORM&quot;, &quot;Phone number was invalid.&quot;);
   ModelState.AddModelError(&quot;_FORM&quot;, &quot;Lane number is required.&quot;);
   return RedirectToAction(&quot;CreateStep&quot;, &quot;Ticket&quot;);
  </code></pre>
  <p>I know some have suggested using <code>TempData</code>, but how would I get each error out of the <code>ModelState</code>?</p>
  <p>Thanks.</p>