title: Remove a field from C# form after post back?
body: <p>How can we remove a field from the Request.Form Collection</p>
  
  <pre><code> Request.Form.Remove("myfield");
  </code></pre>
  
  <p><strong>Gives error : Collection is read-only.</strong></p>
  
  <p><strong>EDIT:</strong> I am sending a form to an External API and it don't require a field and gives a error. and that field is required by me in my internal application .To send the form I use </p>
  
  <pre><code>XXX_API.Post(Request.Form, ID); 
  </code></pre>