How to restrict user from deleting\editing documents if user is not author of that document

Question

I want to restrict users from editing or deleting others documents, but they can edit/delete there own documents.

In list we get this functionality in advance settings, but in document library it is not available. I tried below two links to get that functionality in document library, but it didn't gave any effect on document library.

http://www.hersheytech.com/blog/changing-the-item-level-permissions-settings-for-a-document-library-requires-powershell

https://stackoverflow.com/questions/735015/edit-only-owned-list-items-in-windows-sharepoint-services-3-0

Some blogs advised to do it using event receiver, but how to check the user who triggered the event is author or not?

If there is another solution for my scenario that will be also welcomed.

Answer 1

my issue got resolved with help of below link https://dotnetadil.wordpress.com/2012/04/11/sharepoint-item-deleting-event-receiver-deny-delete/

I used below code

    public override void ItemDeleting(SPItemEventProperties properties)
            {
                base.ItemDeleting(properties);

                using (SPWeb web = properties.OpenWeb())
                {                
                    SPUser creator = new SPFieldUserValue(web, properties.ListItem["Author"].ToString()).User;
                    SPUser currentuser = web.SiteUsers.GetByID(properties.CurrentUserId);

                    bool isCurrentUserCreator = creator.ID.Equals(currentuser.ID);

                    if (!isCurrentUserCreator)
                    {
                        string errormsg = "You can delete own documents only";

                        properties.ErrorMessage = errormsg;
                        properties.Status = SPEventReceiverStatus.CancelWithError;   
                    }
                }
}