public Student(int userId) { _studentTableAdapter = new STUDENTTableAdapter { ClearBeforeFill = true }; InitializeComponent(); CreateTimer(); _studentData = _studentTableAdapter.GetData().FindBystudent_id(userId); LblStudentName.Content = String.Format("{0} {1} {2}", _studentData.student_firstname, _studentData.student_lastname, userId); }