In this article,you will learn how to generate otp in c#
OTP Full Form - The full form of OTP is the One Time Password. OTP is a code of four to six digits that is often referred to as a one-time pin or dynamic password. It is a form of security password which is effective for the payment or single-use which is used for payment on the mobile phone, computer and so on.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="SendOTP.aspx.cs" Inherits="Shoping_Cart.SendOTP" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>How to Send and Verify OTP On Mobile No Using C# In Asp.Net</title>
</head>
<body>
<form id="form1" runat="server">
<div>
Mobile No:
<asp:TextBox ID="txtMobileNo" runat="server" Width="200px"></asp:TextBox>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Send OTP" />
<br />
<asp:Label ID="lblMessage" runat="server" Text=""></asp:Label>
</div>
</form>
</body>
</html>using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Shoping_Cart
{
public partial class SendOTP : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
try
{
Random r = new Random();
string OTP = r.Next(1000, 9999).ToString();
//Send message
string Username = "youremail@domain.com";
string APIKey = "YourHash";
string SenderName = "MyName";
string Number = "981111111";
string Message = "OTP code is - " + OTP;
string URL = "http://api.minifycode.in/send/?username=" + Username + "&hash=" + APIKey + "&sender=" + SenderName + "&numbers=" + Number + "&message=" + Message;
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(URL);
HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
StreamReader sr = new StreamReader(resp.GetResponseStream());
string results = sr.ReadToEnd();
sr.Close();
Session["OTP"] = OTP;
//Redirect for varification
Response.Redirect("VerifyOTP.aspx");
}
catch (Exception ex)
{
lblMessage.Text = ex.Message.ToString();
}
}
}
}<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Verify.aspx.cs" Inherits="Cart.VerifyOTP" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>Verify OTP</title>
</head>
<body>
<form id="form1" runat="server">
<div>
OTP:
<asp:TextBox ID="txtOTP" runat="server" Width="200px"></asp:TextBox>
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Verify OTP" />
<br />
<asp:Label ID="lblMessage" runat="server" Text=""></asp:Label>
</div>
</form>
</body>
</html>using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace Cart
{
public partial class OTP : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
if (Session["OTP"].ToString() == txtOTP.Text)
{
lblMessage.Text = "You have enter correct OTP.";
Session["OTP"] = null;
}
else
{
lblMessage.Text = "Pleae enter correct OTP.";
}
}
}
}generate otp in c#
C# is a programming language developed by Microsoft that runs on the .NET Framework. C# is used to develop web, desktop, mobile, games and much more application.
C# is a object-oriented programming language developed by Microsoft within its .NET Framework. Led by Anders Hejlsberg, your basic C# programming
and will also take you through various advanced concepts related to C# programming language.
C# such as control statements, objects and classes, inheritance, constructor, destructor, this, static, sealed, polymorphism, abstraction, abstract class, interface, File IO, Collections, namespace, encapsulation, properties, indexer, arrays, strings, regex, exception handling, multithreading etc.
For example...
using System;
namespace MinifyCode
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Hello Minify Code");
}
}
}
Output: Hello Minify Code
In this article you will learn, what is server side controls. We will discuss each of these objects in due time. In this tutorial we will explore the Server object, the Request object, and the Response object.
Session
Application
Cache
Request
Response
Server
User
Trace
Server Object
The Server object in Asp.NET is an instance of the System.Web.HttpServerUtility class. The HttpServerUtility class provides numerous properties and methods to perform many type of jobs.
Methods and Properties of the Server object
The methods and properties of the HttpServerUtility class are exposed through the intrinsic Server object provided by ASP.NET.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Optimization;
using System.Web.Routing;
using System.Web.Security;
using System.Web.SessionState;
using System.Data.Entity;
namespace minifycode
{
public class Global : HttpApplication
{
void Application_Start(object sender, EventArgs e)
{
// Code that runs on application startup
RouteConfig.RegisterRoutes(RouteTable.Routes);
BundleConfig.RegisterBundles(BundleTable.Bundles);
// Initialize the product database.
Database.SetInitializer(new ProductDatabaseInitializer());
// Create custom role and user.
RoleActions roleActions = new RoleActions();
roleActions.AddUserAndRole();
// Add Routes.
RegisterCustomRoutes(RouteTable.Routes);
}
void RegisterCustomRoutes(RouteCollection routes)
{
routes.MapPageRoute(
"ProductsCategoryRoute",
"Category/{categoryName}",
"~/ProductList.aspx"
);
routes.MapPageRoute(
"ProductNameRoute",
"Product/{productName}",
"~/ProductDetails.aspx"
);
}
}
}