Dot Net Technology

        Response.Redirect("https://api.whatsapp.com/send?phone=+91" + TextBox1.Text + "&text=" + TextBox2.Text);

Registration form project   CODING- using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data.SqlClient; using System.Configuration; public partial class RegPage : System.Web.UI.Page {     SqlConnection cn;     SqlCommand cm;     SqlDataReader dr;     FinalClass fc = new FinalClass();     protected void Page_Load(object sender, EventArgs e)     {         if (!IsPostBack)         {             statedisplay();         }     }     protected void connect()     {         string s = ConfigurationManager.AppSettings["Ch_Db"];         cn = new SqlConnection(s);         cn.Open();          }     protected void statedisplay...