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Handling Form Controls After Ajax.BeginForm Submission

Posted By:      Posted Date: October 12, 2010    Points: 0   Category :ASP.Net

Currently I have a comments section integrated into a blog I am writing. 
The comments are Ajaxified, when you post a comment the comment list auto updates with the comment you just added. 
Everything is working great but I would like to do some cleanup after a comment is successfully posted. 
Specifically I would like to disable the textarea and submit button which I would have no issues doing through javascript by using the AjaxOption OnComplete parameter.
To avoid double posts or just plain abuse. I know I will need other safegaurds as well but this is my first step.
The thing is Ajax.BeginForm does not give the form an id or name so I can not reference the form in javascript.
Is there a workaround here? Can I disable these form controls from the controller? 

Here is my code.

<% using (Ajax.BeginForm("Details", new AjaxOptions {UpdateTargetId="divCommentList"})) {%>
    <p>Add Your Own Comment</p>
    <p><%= Html.TextArea("Comment1")%></p>
    <input type="submit" value="Add Comment" id="submit" />
    <% } %>

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