send SMS in asp.net

--> if you want to send sms using asp.net with c# code then do following
--> SMS service is not free , You must be purchase a SMS service pack from another company for send SMS

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--> Copy the following method in your code behind file

using System.Net;
using System.IO;

public void Send_SMS()

    {

        string username, Password, sender, to, message;

        //this all string variable contains Mobile No,Message

        WebClient client = new WebClient();

        string msg = "Thank you for visit Problemaspdotnet.blogspot.in blogs";

 string baseurl = " Your SMS provider link which Contains your   username,Password,sender,to,message....";

        WebRequest wrGETURL;

        StreamReader objReader;

        wrGETURL = WebRequest.Create(baseurl);

        try

        {

            Stream objStream;

            objStream = wrGETURL.GetResponse().GetResponseStream();

            objReader = new StreamReader(objStream);

            objReader.Close();

        }

        catch (Exception ex)

        {

            ex.ToString();

        }

    }

--> and above function use on click event or any where ,
      where you want to send SMS