خطا در زمان ایجاد databasedbEntities db = new databasedbEntities ()

[M.D.A_M.D.A]

خطا زیر




The specified named connection is either not found in the configuration, not intended to be used with the EntityClient provider, or not valid.

[ahmad156]

using System.Data.Entity را add کردین به اول صفحه