In this article I am explain how to send Free SMS and Free Bulk SMS to mobile (cell) numbers in
ASP.Net website. There are many websites that allow sending free SMS to mobile
(cell) numbers like Way2sms, FullOnSMS, 160by2, Site2SMS, IndyaRocks.com SMSAbc.com,
Ultoo.com, SmsSpark.com SMSFI.com Freesms8, Sms440, BhokaliSMS, etc.
The above sites allow
users to send Free SMS to any Mobile or Cell Number.
Thus to make it easier
for the .Net Community I have introduced an API for sending SMS using Site2SMS
which uses the online API from Mashape.com.
In order to use this API
you need to
1. Register at Site2SMS
and get Username and Password.
3. Download DLL Here.
Designer Source Code:
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<style type="text/css">
body
{
font-family: Arial;
font-size: 10pt;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<table border="0">
<tr>
<td>
Your Number:
</td>
<td>
<asp:TextBox ID="txtNumber"
runat="server"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator1"
runat="server"
ErrorMessage="Required"
ControlToValidate="txtNumber"
ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
Password:
</td>
<td>
<asp:TextBox ID="txtPassword"
TextMode="Password"
runat="server"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator2"
runat="server"
ErrorMessage="Required"
ControlToValidate="txtPassword"
ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
Recipient Number:
</td>
<td>
<asp:TextBox ID="txtRecipientNumber"
runat="server"
Width="300"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator3"
runat="server"
ErrorMessage="Required"
ControlToValidate="txtRecipientNumber"
ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
Message:
</td>
<td>
<asp:TextBox ID="txtMessage"
runat="server"
TextMode="MultiLine"></asp:TextBox>
</td>
<td>
<asp:RequiredFieldValidator
ID="RequiredFieldValidator5"
runat="server"
ErrorMessage="Required"
ControlToValidate="txtMessage"
ForeColor="Red"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
</td>
<td>
<asp:Button ID="btnSend"
runat="server"
Text="Send"
OnClick="btnSend_Click"
/>
</td>
<td>
</td>
</tr>
</table>
</form>
</body>
</html>
Code Behind:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using System.Net;
using System.IO;
using ASPSnippets.SmsAPI;
public partial class CS :
System.Web.UI.Page
{
protected void
btnSend_Click(object sender, EventArgs e)
{
SMS.APIType = SMSGateway.Site2SMS;
SMS.MashapeKey = "<Mashape
API Key>";https://www.mashape.com
SMS.Username = txtNumber.Text.Trim();
SMS.Password = txtPassword.Text.Trim();
if (txtRecipientNumber.Text.Trim().IndexOf(",") == -1)
{
//Single SMS
SMS.SendSms(txtRecipientNumber.Text.Trim(),
txtMessage.Text.Trim());
}
else
{
//Multiple SMS
List<string>
numbers = txtRecipientNumber.Text.Trim().Split(',').ToList();
SMS.SendSms(numbers, txtMessage.Text.Trim());
}
}
}
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