Connecting via C#

The following example shows how to connect to the SQL server via C#.

using System;
using System.Windows.Forms;
using System.Data.SqlClient;
namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void button1_Click(object sender, EventArgs e)
        {
            string connetionString = null;
            SqlConnection cnn ;
            connetionString = "Data Source=mssql-12**8-0.cloudclusters.net,10**3;Initial Catalog=DatabaseName;User ID=UserName;Password=Password"
            cnn = new SqlConnection(connetionString);
            try
            {
                cnn.Open();
                MessageBox.Show ("Connection Open ! ");
                cnn.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show("Can not open connection ! ");
            }
        }
    }
}

Reference link: http://csharp.net-informations.com/data-providers/csharp-sql-server-connection.htm