private void btnAddRequest_Click(object sender, EventArgs e)
        {
            int             selectedrowindex = dgvSearch.SelectedCells[0].RowIndex;
            DataGridViewRow selectedRow      = dgvSearch.Rows[selectedrowindex];

            if (selectedRow.Cells[0].Value != null && selectedRow.Cells[0].Value.ToString() != string.Empty)
            {
                string         value  = selectedRow.Cells[0].Value.ToString();
                BUS.RequestBUS bus    = new BUS.RequestBUS();
                bool           result = bus.AddNewRequest(UserID, value);
                if (result == true)
                {
                    MessageBox.Show("Borrow successful!!!", "Notification", MessageBoxButtons.OK, MessageBoxIcon.Information);
                }
                else
                {
                    MessageBox.Show("Borrow fail!!!", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
                }
            }
        }