private void dgOngoing_CellClick(object sender, DataGridViewCellEventArgs e)
        {
            try
            {
                string str = dgOngoing.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString();

                Admin Bind = new Admin();
                ArrayList data_contract = Bind.BindOngoingContract(str);

                if (data_contract.Count == 0)
                {
                    MessageBox.Show("NO DATA MATCH WITH DATABASE RECORDS", "NO DATA FOUND", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                }
                else
                {
                    for (int i = 0; i < data_contract.Count; i = i + 5)
                    {
                        string ContractNumber = (string)data_contract[i];
                        string ContractName = (string)data_contract[i + 1];
                        string ContractTimePeriod = (string)data_contract[i + 2];
                        string ContractEndDate = (string)data_contract[i + 3];
                        string ContractStatus = (string)data_contract[i + 4];

                        tbEditContractNumber.Text = ContractNumber;
                        tbEditContractName.Text = ContractName;
                        tbEditContractTimePeriod.Text = ContractTimePeriod;
                        tbEditContractEndDate.Text = ContractEndDate;
                        tbEditContractStatus.Text = ContractStatus;
                    }
                }
            }
            catch (SqlException)
            {
                MessageBox.Show("MICROSOFT SQL SERVER DATABASE ERROR!", "ERROR OCCURS", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            catch (InvalidOperationException)
            {
                MessageBox.Show("INVALID OPERATION!", "ERROR OCCURS", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString(), "ERROR OCCURS", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }