How to insert wifi scan data into sql table

Question

Urgent assist required. Can someone help pls, i have scanned wifi data in C# that i have split into required format MAC,SSID and RSSi . I want when i push a button the results are inserted into an sql table that i already created. and if i push the buton
again it stops inserting. I have tried several methods and could not get it to work, Will appreciate assist
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO.Ports;
namespace WICED_SERIALPORT_TEST
    public partial class Form1 : Form
        public Form1()
            InitializeComponent();
        private void button1_Click(object sender, EventArgs e)
            string[] ports = SerialPort.GetPortNames();
            foreach (string port in ports)
                comboBox1.Items.Add(port);
        string t;
        private void button2_Click(object sender, EventArgs e)
            t = comboBox1.Text.ToString();
            sErial(t);
        SerialPort sp;
        void sErial(string Port_name)
            sp = new SerialPort(Port_name, 115200, Parity.None, 8, StopBits.One);
            sp.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
            sp.Open();
        private void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
            SerialPort sp = (SerialPort)sender;
            string msg = string.Empty;
            bool canCont = false;
            while (!canCont)
                msg += sp.ReadLine();
                if (msg.Contains("Scan complete "))
                    canCont = true;
            //string w = sp.ReadLine();
            //string w = sp.ReadExisting();
            // string msg = sp.ReadExisting();
            string[] msgArr = msg.Split('\r');
            Invoke(new Action(() => listBox1.Items.Clear()));
            List<string[]> list = new List<string[]>();
            List<Networks> Scan = new List<Networks>();
            for (int i = 0; i < msgArr.Length; i++)
                list.Add(msgArr[i].Split(new string[] { "  " }, StringSplitOptions.RemoveEmptyEntries));
            for (int i = 0; i < list.Count; i++)
                if (i > 2)
                    if (list[i].Length > 4)
                        int numOfSplits = 0;
                        List<string> tempList = new List<string>();
                        for (int ii = 0; ii < list[i].Length; ii++)
                            if (numOfSplits < 6)
                                string[] temp1 = list[i][ii].Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
                                numOfSplits += temp1.Length;
                                for (int iii = 0; iii < temp1.Length; iii++)
                                    tempList.Add(temp1[iii]);
                            else
                                tempList.Add(list[i][ii]);
                        Scan.Add(new Networks()
                            ID = Convert.ToInt32(tempList[0]),
                            NetworkType = tempList[1],
                            MAC = tempList[2],
                            RSSi = Convert.ToInt32(tempList[3]),
                            Rate = Convert.ToDouble(tempList[4]),
                            Channel = Convert.ToInt32(tempList[5]),
                            Security = tempList[6],
                            SSID = tempList[7],
            if (msg != String.Empty)
                Invoke(new Action(() => richTextBox1.AppendText(msg)));
            for (int i = 0; i < Scan.Count; i++)
                Invoke(new Action(() => listBox1.Items.Add(Scan[i].MAC)));
                Invoke(new Action(() => listBox2.Items.Add(Scan[i].RSSi)));
                Invoke(new Action(() => listBox3.Items.Add(Scan[i].SSID)));
                msg = string.Empty;
                list.Clear();
        private void richTextBox1_TextChanged(object sender, EventArgs e)
        private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        private void richTextBox2_TextChanged(object sender, EventArgs e)
        private void listBox1_SelectedIndexChanged(object sender, EventArgs e)
        private void Form1_Load(object sender, EventArgs e)
        public SqlConnection con = new SqlConnection(@"Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\AP_SCAN_DATA.mdf;Integrated Security=True");
        private void button3_Click(object sender, EventArgs e)
            using (SqlConnection connection = new SqlConnection(@"Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\AP_SCAN_DATA.mdf;Integrated Security=True"))
    using (SqlCommand command = new SqlCommand())
        command.Connection = connection;            // <== lacking
        command.CommandType = CommandType.Text;
        command.CommandText = "INSERT into LOCATIONSCAN ((Scan[i].SSID),(Scan[i].MAC), (Scan[i].RSSi)) VALUES (@SSID, @MAC, @RSSi)";
        command.Parameters.AddWithValue("@SSID", listBox1);
        command.Parameters.AddWithValue("@MAC", listBox2);
        command.Parameters.AddWithValue("@RSSi",listBox3);
        try
            connection.Open();
            int recordsAffected = command.ExecuteNonQuery();
        catch(SqlException)
            // error here
        finally
            connection.Close();

Answer 1

Hello,
Remove the Try-Catch as this hides any errors that may be raised. It is unwise to use a Try-Catch this way, always when using a Try-Catch write code that alerts or writes to a log file. Also, there is no need for invoke Close method for the connection object,
the Using statement closes the connection for you.
Please remember to mark the replies as answers if they help and unmark them if they provide no help, this will help others who are looking for solutions to the same or similar problem.