title: Posting custom JSON from a text box in ASP.NET
body: <p>I have a simple web form in ASP.NET.  Custom JSON is entered into the form and then posted to the server.  In reverse whatever is associated with the parent data object (which the json is attached to) is present in the text box when the page loaded.  </p>
  
  <p>While the initial set of JSON displays fine, posting the form back causes a validation error and the request to fail.  The requirements I have right now are to be able to enter in custom json data.  The data could be complex (trees of objects).  What would be the best approach to retaining security and validation on the form but allowing for the custom json?</p>