private void btnModify_Click(object sender, EventArgs e)
        {
            int    rowNum   = examineeDataGridView.CurrentCell.RowIndex;
            string examinID = examineeDataGridView[0, rowNum].Value.ToString();

            Examinee currentExaminee;

            using (ExamineeDataContext dbContext = new ExamineeDataContext())
            {
                currentExaminee = (from exe in dbContext.Examinees
                                   where Convert.ToString(exe.ExamineeID) == examinID
                                   select exe).SingleOrDefault();
            }

            frmAddModifyexaminee secondForm = new frmAddModifyexaminee();

            secondForm.isAdd           = false;
            secondForm.currentExaminee = currentExaminee;
            DialogResult result = secondForm.ShowDialog();

            if (result == DialogResult.OK || result == DialogResult.Retry)
            {
                RefreshGridView();
            }
        }
        //Button Clicks

        private void btnAdd_Click(object sender, EventArgs e)
        {
            frmAddModifyexaminee secondForm = new frmAddModifyexaminee();

            secondForm.isAdd           = true;
            secondForm.currentExaminee = null;
            DialogResult result = secondForm.ShowDialog();

            if (result == DialogResult.OK)
            {
                RefreshGridView();
            }
        }