How To Send Bulk SMS in Asp.net Using C#

In this tutorial i am going to share with you How to Send Bulk SMS in Asp.Net C#. Or Also Explain How to Use SMS Gateway to Send BulkSMS in Asp.Net.

You can Send Bulk SMS in Asp.Net with using SMS Gatway. Many Website are provide free SMS Gateway such as Way2sms, Site2SMS, FullOnSMS, Ultoo.com, Freesms8,Sms440, BhokaliSMS, IndyaRocks.com, 160by2 and etc.

To Send Successfully SMS You need to Follow this Steps:

Step 1: SignUp or Register at Site2SMS and Get Username and Password.

Step 2: SignUp or Register at www.mashape.com and Generate API Key.

Step 3: Download the .DLL file ASPSnippets.SmsAPI.dll from ASPSnippets.com and add it in your project >> bin folder. Click here to Download

Step 4: Write C# Code to Send Bulk SMS.

Step 5: Enjoy

HTML Code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
 
<!DOCTYPE html>
 
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Send SMS </title>
    <style type="text/css">
        .auto-style1 {
            height: 60px;
            color: #FFFFFF;
        }
        body {
            font-family: Arial;
            font-size: 10pt;
        }
        .auto-style2 {
            height: 26px;
            color: #FF9900;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
    <table border="0">
            <tr>
                <td class="auto-style1" colspan="3" style="text-align: center; background-color: #FF9900"><strong>Send Bulk SMS in Asp.Net</strong></td>
            </tr>
            <tr>
                <td>Your Mobile Number:
                </td>
                <td>
                    <asp:TextBox ID="txt_MobileNumber" 
                        placeholder="Mobile Number" 
                        runat="server" 
                        Width="181px"></asp:TextBox>
                </td>
                <td>
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator1" runat="server" 
                        ErrorMessage="Required"
                        ControlToValidate="txt_MobileNumber" 
                        ForeColor="Red"></asp:RequiredFieldValidator>
                </td>
            </tr>
            <tr>
                <td>Your Site2Sms Password:
                </td>
                <td>
                    <asp:TextBox ID="txt_Password" 
                        placeholder="Password" 
                        TextMode="Password" 
                        runat="server" 
                        Width="181px"></asp:TextBox>
                </td>
                <td>
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator2" runat="server" 
                        ErrorMessage="Required"
                        ControlToValidate="txt_Password" 
                        ForeColor="Red"></asp:RequiredFieldValidator>
                </td>
            </tr>
            <tr>
                <td>Reciever mobile Number:
                </td>
                <td>
                    <asp:TextBox ID="txt_RecieverNumber" 
                        placeholder="Reciever Number" 
                        runat="server" 
                        Width="181px"></asp:TextBox>
                </td>
                <td>
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator3" runat="server" 
                        ErrorMessage="Required"
                        ControlToValidate="txt_RecieverNumber" 
                        ForeColor="Red"></asp:RequiredFieldValidator>
                </td>
            </tr>
            <tr>
                <td>Message Boby Text:
                </td>
                <td>
                    <asp:TextBox ID="txt_BodyMessage" runat="server" 
                        placeholder="Message" 
                        TextMode="MultiLine" 
                        Width="181px"></asp:TextBox>
                </td>
                <td>
                    <asp:RequiredFieldValidator ID="RequiredFieldValidator5" runat="server" 
                        ErrorMessage="Required"
                        ControlToValidate="txt_BodyMessage" 
                        ForeColor="Red">
                    </asp:RequiredFieldValidator>
                </td>
            </tr>
            <tr>
                <td></td>
                <td>
                    <asp:Button ID="btn_Sendsms" runat="server" Text="Send SMS" 
                        BackColor="#009900" 
                        BorderStyle="None" 
                        ForeColor="White" 
                        Height="33px" 
                        Width="97px" 
                        OnClick="btn_Sendsms_Click" />
                </td>
                <td></td>
            </tr>
            <tr>
                <td colspan="3">
                    <center>
                    <asp:Label ID="Label1" Font-Bold="true" ForeColor="Green" runat="server"></asp:Label>
                    </center>
                </td>
            </tr>
            <tr>
                <td class="auto-style2" colspan="3" style="text-align: center; background-color: #000000">Copyright © www.asppoint.com</td>
            </tr>
        </table>
    </div>
    </form>
</body>
</html>

C# Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using ASPSnippets.SmsAPI;
using System.Text;
using System.Net;
 
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
 
    }
    protected void btn_Sendsms_Click(object sender, EventArgs e)
    {
        SMS.APIType = SMSGateway.Site2SMS;
        SMS.MashapeKey = "<Mashape API Key>";
        SMS.Username = txt_MobileNumber.Text.Trim();
        SMS.Password = txt_Password.Text.Trim();
        if (txt_RecieverNumber.Text.Trim().IndexOf(",") == -1)
        {
            //Single SMS
            SMS.SendSms(txt_RecieverNumber.Text.Trim(), txt_BodyMessage.Text.Trim());
            Label1.Text="Your SMS Sent Successfully...!";
        }
        else
        {
            //Multiple SMS
            List<string> numbers = txt_RecieverNumber.Text.Trim().Split(',').ToList();
            SMS.SendSms(numbers, txt_BodyMessage.Text.Trim());
            Label1.Text="Your SMS Sent Successfully...!";
        }
    }
}

About Nikunj Satasiya

I am a passionate programmer and a Software Engineer who love developing applications in Microsoft Technologies, blogging and other related technologies like Asp.Net, VB.Net, SEO, Sql Server,My SQL,Asp.Net-MVC, LINQ, C#.Net, Stored Procedures, Ajax, JavaScript, JQuery, xml etc.

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How To Send Bulk SMS in Asp.net Using C#

About Nikunj Satasiya

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