C#

Regex regex = new Regex(@"^\r\n", RegexOptions.Multiline);
html = regex.Replace(html, @"<br/>");

int firstSelectedIndex1 = listView1.SelectedItems[0].Index;
int firstSelectedIndex2 = listView1.SelectedIndices[0];

private void cust_update_Click(object sender, EventArgs e)
        {        
            bool success;
            success = dataAccess.AddCustomer(<big>Datagridview ID</big>, cust_name.Text, cust_add.Text, cust_account.Text, cust_phone.Text...);
            if (success)
            {
                MessageBox.Show("Data updated!");
            }
            else
            {
                MessageBox.Show("Update FAIL!!!");
            }
        }

public bool AddCustomer(string function, string custName, string custAdd, string custAcc, string custPhone.....)
        {
            bool success = false;
            string query = string.Empty;
            try
            {
                SqlCommand cmd = new SqlCommand();
                cmd.Parameters.Add(new SqlParameter("@companyName", custName));
                cmd.Parameters.Add(new SqlParameter("@customerAdd", custAdd));
                cmd.Parameters.Add(new SqlParameter("@attName", custAdd));
                cmd.Parameters.Add(new SqlParameter("@customerAcc", custAcc));
                cmd.Parameters.Add(new SqlParameter("@customerPhone", custPhone));

 query += "UPDATE CUSTOMER set company_name= @companyName, company_add= @customerAdd, att_name= @attName, account_num= @customerAcc, phone= @customerPhone...........";
 query += " where cust_id =   <big>??????????</big>   ";
              
                cmd.CommandText = query;

                if (cn.State == ConnectionState.Closed) cn.Open();
                cmd.Connection = cn;

                if (cmd.ExecuteNonQuery() > 0)
                {
                    success = true;
                    return success;
                }