protected virtual void Dispose(bool disposing)
 {
     if (disposing)
     {
         _context.Database.EnsureDeleted();
         _context.Dispose();
     }
 }
 public void Down()
 {
     _dbContext.Dispose();
 }
 public void Dispose()
 {
     _dbContext.Database.CloseConnection();
     _dbContext.Dispose();
 }