title: FromBody string parameter is giving null
body: <p>This is probably something very basic, but I am having trouble figuring out where I am going wrong. </p>
  
  <p>I am trying to grab a string from the body of a POST, but "jsonString" only shows as null. I also want to avoid using a model, but maybe this isn't possible. The piece of code that I am hitting with PostMan is this chunk:</p>
  
  <pre><code>[Route("Edit/Test")]
  [HttpPost]
  public void Test(int id, [FromBody] string jsonString)
  {
      ...
  }
  </code></pre>
  
  <p>Maybe it is something I am doing incorrectly with postman, but I have been trying to use "=test" (as seen in other questions asked about this topic) in the value section of the body - x-www-form-urlencoded section with the key as jsonString and nothing. I have also tried using raw - text and raw - text/plain. I get the id so I know the url is correct. Any help with this would be greatly appreciated. </p>
  
  <p>PostMan is set up like this currently:</p>
  
  <pre class="lang-none prettyprint-override"><code>POST http://localhost:8000/Edit/Test?id=111
  key = id  value = 111
  Body - x-www-form-urlencoded
  key = jsonString  value = "=test"
  </code></pre>