How to make a application use database sql server ?

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.NET3.5

.NET

SQL-Server

, +

Hello everybody ,

I am trying to make a simple application that interact to database SQL server, and it can run over a LAN. My ideas is use remote Connection by changing the Connection String like:

public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
          //  string strcon = ConfigurationManager.ConnectionStrings["strcon"].ConnectionString;
            string strcon="Data Source=192.168.1.36,1433;Network Library=DBMSSOCN;Initial Catalog=TracNghiem;Integrated Security=true;";
           // string strcon = "Server=.\\SQLEXPRESS;Database=TracNghiem;Integrated Security=true;";
            SqlConnection con;
            try
            {
                con = new SqlConnection(strcon);
                con.Open();
                MessageBox.Show("Connected Successfully");
            }
            catch(Exception xe)
            {
                MessageBox.Show("Error\n" + xe.Message);
            }
        }
        private void button2_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }

But I can run it successfully! My question : Is it possible ? And why I cann't run it !

Thanks for reading !