public HttpResponseMessage update([FromBody] MKV8001 value)
 {
     using (DB db = new DB())
     {
         result <MKV8001> rel = new result <MKV8001>();
         var check            = db.MKV9999.Where(p => p.manhansu == value.taikhoan || p.cmtnd_so == value.cmnd).FirstOrDefault();
         if (check != null)
         {
             check.matkhau = "123456";
             try
             {
                 db.SaveChanges();
                 var k = db.MKV8001.SingleOrDefault(p => p.MKV8001_ID == value.MKV8001_ID);
                 if (k != null)
                 {
                     k.trangthai = true;
                 }
                 db.SaveChanges();
                 rel.set("OK", value, "Thành công");
             }
             catch (Exception rr)
             {
                 rel.set("ERR", value, "Thất bại: " + rr.Message);
             }
         }
         return(rel.ToHttpResponseMessage());
     }
 }
 public HttpResponseMessage add([FromBody] MKV8001 value)
 {
     using (DB db = new DB())
     {
         result <MKV8001> rel = new result <MKV8001>();
         db.MKV8001.Add(value);
         try
         {
             db.SaveChanges();
             rel.set("OK", value, "Thành công");
         }
         catch (Exception rr)
         {
             rel.set("ERR", value, "Thất bại: " + rr.Message);
         }
         return(rel.ToHttpResponseMessage());
     }
 }