Add Read Permission To User And Stop The Permission Inheritance In SharePoint2013 List Using JavaScript Object Model

In this blog, we will see about how to add a read permission to USER and stop the inherit permissions in list using JavaScript Object Model.

In this blog, we will see about how to add a read permission for the user and stop the inherit permissions in the list , using JavaScript Object Model. Using this code, we can break the security inheritance of a Website, list, library, or list item through the BreakRoleInheritance method. When we want to grant an access to the folders or the documents or simply for an item to a specific user, we go ahead and break the Inheritance and provide an access to the specified user.

Add JavaScript files given below in to your solution.

<script type="text/javascript" src="../Scripts/jquery-1.9.1.min.js"></script>
<script type="text/ecmascript" src="../_layouts/SP.core.debug.js" />
<script type="text/ecmascript" src="../_layouts/SP.runtime.debug.js" />
<script type="text/ecmascript" src="../_layouts/SP.debug.js" />

The blog given below shows how to break the security of a list by using the breakRoleInheritance(copyRoleAssignments, clearSubscopes) function of the List object. 

<script type="text/ecmascript">
    function readPermisiontoUSER() {
        var Context = new SP.ClientContext.get_current();
        var Website = Context.get_web();
        var oList = Website.get_lists().getByTitle('CustomList');

    var ListItem = oList.get_items().getById('4');

    ListItem.breakRoleInheritance(false);
    this.User = Context.get_web().get_siteUsers().getByLoginName('SPDEV\\gowtham');
  var collRoleDefinitionBinding = SP.RoleDefinitionBindingCollection.newObject(Context);
    collRoleDefinitionBinding.add(Context.get_web().get_roleDefinitions().getByType(SP.RoleType.reader));
    oListItem.get_roleAssignments().add(User, collRoleDefinitionBinding);
    Context.load(User);
    Context.load(ListItem);
    Context.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded), Function.createDelegate(this, this.onQueryFailed));
}

function onQuerySucceeded(sender, args) {

    alert('Role inheritance broken for item ');

}

function onQueryFailed(sender, args) {

    alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}
</script>

Thanks for reading my blog.