$colleges = DB::table("pl_college");

 return datatables($colleges->get())
 ->addColumn("c_code", function($row) {
 return $row->c_code;
 })
 ->addColumn("c_name", function($row) {
 return $row->c_name;
 })
 ->addColumn("c_dean", function($row) {
 return $row->c_dean;
 })
 ->addColumn("action", function($row) {
 $action = " <div class="dropdown">
 <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
 Dropdown button
 </button>
 <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
 <a class="dropdown-item" href="#">Action</a>
 <a class="dropdown-item" href="#">Another action</a>
 <a class="dropdown-item" href="#">Something else here</a>
 </div>
 </div>";

 return $action;
 })

 ->rawColumns(["action"])
 ->make(true);