Document library column permissions

Question

Hello everybody ! 
I've a problem regarding to the Sharepoint authorization system(again), is it possible to apply permissions to columns in my custom content type ? I've added two columns to my content type and i'd like to know if it's possible to prevent user to write in these
columns(user and user only, the admin can write into these columns).
Thanks in advance.
Best regards.

Answer 1

You can use SPServices to check whether the current user is member of a particular group. If not,  hide the field using
jQuery.
<!-- jQuery Reference. You can refer it from Layouts Folder/Doc Library too, after uploading the script. -->
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<!-- Download SPServices from: http://spservices.codeplex.com/ Or use this CDN -->
<script type="text/javascript" src="http://cdnjs.cloudflare.com/ajax/libs/jquery.SPServices/0.7.1a/jquery.SPServices-0.7.1a.min.js"></script>
<script type="text/javascript">
$(document).ready(function() {
$().SPServices({
operation: "GetGroupCollectionFromUser",
userLoginName: $().SPServices.SPGetCurrentUser(),
async: false,
completefunc: function(xData, Status) {
var xml = xData.responseXML.xml;
//If the current User does belong to the group "Service desk Operators"
if (xml.search('Service Desk Operators') == -1)
// alert("No, User Doesn't Exists!");
$("select[title=Status]").parent().parent().parent().hide();
//or use: $('td.ms-formlabel:contains("Status")').parent().hide();
//You can also use: $('nobr:contains("Status")').closest('tr').hide();
</script>
Read more: http://www.sharepointdiary.com/2013/07/hide-sharepoint-list-columns-based-on-user-permissions.html#ixzz2rSoGao1Y
Bala