Connecting to a SQL Server 2012 database in Visual Studio 2008

Question

I am currently developing a mobile application based on Windows CE for my team to track out assets and store them in our existing database.

I am able to develop and deploy the software successfully however I can't seem to connect to my SQL Server 2012 database from Visual Studio 2008. When I try to connect from Visual Studio 2017, it works just fine.

This is my test code only not my real asset tracker code so it wont have the UI I built for the asset tracker app.

using System;
using System.Linq;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;

namespace test_smart_device
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            button1.Click += new EventHandler(button_connect);
        }

        private void button_connect(object sender, EventArgs e)
        {
            string connetionString = null;
            SqlConnection cnn ;
            connetionString = "Data Source=172.16.206.20;Initial Catalog=IBusinessTest;Integrated Security=SSPI;User ID=username;Password=123456";

            cnn = new SqlConnection(connetionString);

            try
            {
                cnn.Open();
                MessageBox.Show ("Connection Open ! ");
                cnn.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("Can not open connection ! ");
            }
        }
    }
}

When I try to connect to my database, I get this error:

This is from the debugger when I put the breakpoint at the catch statement

Answer 1

I've decided that I won't use direct server connection using sqlClient class. Instead I will host a SOAP service on my server that will take my input in XML format via a HTTP link.

using System.Net;
using System.Xml;
public static void Execute_soap(string l_mat, decimal l_qty, string l_batch)
{
    HttpWebRequest request = CreateWebRequest();
    request.Credentials = CredentialCache.DefaultCredentials;
    XmlDocument soapEnvelopeXml = new XmlDocument();
    NewMethod(soapEnvelopeXml, l_mat, l_qty, l_batch);
    request.AllowWriteStreamBuffering = true;
    using (Stream stream = request.GetRequestStream())
    {
        soapEnvelopeXml.Save(stream);
    }

    using (WebResponse response = request.GetResponse())
    {
        //Console.WriteLine(((HttpWebResponse)response).StatusDescription);
        using (StreamReader rd = new StreamReader(response.GetResponseStream()))
        {
            string soapResult = rd.ReadToEnd();
            using (StreamWriter writer = new StreamWriter(@"C:\Users\ikhsan\Desktop\xml_file.txt"))
            {
                writer.WriteLine(soapResult);
            }

            Console.WriteLine(soapResult);
            Console.WriteLine("Done!");
            //Console.ReadKey();

        }
    }


}



private static void NewMethod(XmlDocument soapEnvelopeXml, string mat, decimal qty, string batch)
    {
        string xml_str = @"<soap12:Envelope xmlns:xsi=""http://www.w3.org/2001/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/2001/XMLSchema"" xmlns:soap12=""http://www.w3.org/2003/05/soap-envelope"">" +
                        @"<soap12:Body>" +
                            @"<PCB_SCAN_EMS xmlns=""http://tempuri.org/"">" +
                                @"<part_num>" + mat + "</part_num>" +
                                @"<qty>" + qty.ToString() + "</qty>" +
                                "<batch>" + batch + "</batch>" +
                                "<ems_loc>2106</ems_loc>" +
                             "</PCB_SCAN_EMS>" +
                         "</soap12:Body>" +
                      "</soap12:Envelope>";

        soapEnvelopeXml.LoadXml(xml_str);

    }

    public static HttpWebRequest CreateWebRequest()
    {
        HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create("http://172.16.206.19/PART_INFO/get_part_quantity_from_bin.asmx");
        webRequest.ContentType = @"application/soap+xml;charset=UTF-8";
        webRequest.Accept = "text/xml";
        webRequest.Method = "POST";
        return webRequest;

    }

This will work in all windows mobile version