How and where is best and highly seucrity for creating conn?

Hi prabhu, We can use Web.Config file for server details. We can declare public class. For example

public partial class SignUp : System.Web.UI.Page
{
        SqlConnection con = new SqlConnection(ConfigurationManager.AppSettings["DatabaseConnectionString"].ToString());
 
        protected void Page_Load(object sender, EventArgs e)
        {
                //some logic
        }
}
 
This the best and highly seucrity for creating connection to sql database

Thanks