private void saveButton_Click(object sender, EventArgs e)
        {
            Company comObj = new Company();

            comObj.CompanyName = CompanyNameTextBox.Text;
            if (comObj.CompanyName == "")
            {
                MessageBox.Show("Empty value not accepted !");
                return;
            }


            CompanyManager comMangObj  = new CompanyManager();
            bool           companyInfo = comMangObj.SaveCompInfo(comObj);

            if (companyInfo == true)
            {
                MessageBox.Show("Company Name Saved !");
            }
            else
            {
                MessageBox.Show("Company name already exist !");
                return;
            }

            DataTable DT = comMangObj.CompanyDataTable();

            companyDataGridView.DataSource = DT;
            editButton.Enabled             = true;
        }