// PUT api/DeadLines/5
        public IHttpActionResult Putgsf_Deadlines(int id, gsf_Deadlines gsf_deadlines)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            if (id != gsf_deadlines.deadlineID)
            {
                return BadRequest();
            }

            db.Entry(gsf_deadlines).State = EntityState.Modified;

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!gsf_DeadlinesExists(id))
                {
                    return NotFound();
                }
                else
                {
                    throw;
                }
            }

            return StatusCode(HttpStatusCode.NoContent);
        }
        public IHttpActionResult Postgsf_Deadlines(gsf_Deadlines gsf_deadlines)
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }

            db.gsf_Deadlines.Add(gsf_deadlines);

            try
            {
                db.SaveChanges();
            }
            catch (DbUpdateException)
            {
                if (gsf_DeadlinesExists(gsf_deadlines.deadlineID))
                {
                    return Conflict();
                }
                else
                {
                    throw;
                }
            }

            return CreatedAtRoute("DefaultApi", new { id = gsf_deadlines.deadlineID }, gsf_deadlines);
        }