HttpCookie Example
Here we are creating and adding cookies with the help of HttpCookie class.
// HttpCookieExample.aspx
<%@ Page Language="C#" AutoEventWireup="true"
CodeBehind="HttpCookieExample.aspx.cs" Inherits="CookieExample.HttpCookieExample" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form" runat="server">
<div>
<asp:Label ID="LabelID" runat="server" Text="Label"></asp:Label>
</div>
</form>
</body>
</html>
// HttpCookieExample.aspx.cs
using System;
using System.Web;
namespace WebFormsControlls
{
public partial class HttpCookieExample : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
// Creating Cookie
HttpCookie cookieObj = new HttpCookie("student");
cookieObj.Value = "Chunky Panday";
Response.Cookies.Add(cookieObj);
// Fetching Cookie
var cookieVal = Response.Cookies["student"].Value;
LabelID.Text = cookieVal;
}
}
}
Output:
Cookie Collection Example
In the following example of a fruit basket, we add cookies directly to the ASP.NET Cookies collection.
// CookieCollectionExample.aspx
<%@ Page Title="Home Page" Language="C#" AutoEventWireup="true" CodeBehind="CookieCollectionExample.aspx.cs"
Inherits="CookieExample._CookieCollectionExample" %>
<form id="form1" runat="server">
<asp:Label ID="TopLabel" runat="server" Text="Select Fruit Preferences:"></asp:Label>
<br />
<br />
<asp:CheckBox ID="apple" runat="server" Text="Apple" />
<br />
<asp:CheckBox ID="orange" runat="server" Text="Orange" />
<br />
<asp:CheckBox ID="guava" runat="server" Text="Guava" />
<br />
<asp:CheckBox ID="kiwi" runat="server" Text="Kiwi" />
<br />
<asp:CheckBox ID="banana" runat="server" Text="Banana" />
<br />
<asp:CheckBox ID="strawberry" runat="server" Text="Strawberry" />
<br />
<br />
<asp:Button ID="Button1" runat="server" OnClick="Submit_Button" Text="Submit" />
<p>
<asp:Label ID="ChoiceLabel" runat="server"></asp:Label>
</p>
</form>
// CookieCollectionExample.aspx.cs
using System;
using System.Web.UI;
namespace CookieExample
{
public partial class _CookieCollectionExample : Page
{
protected void Page_Load(object sender, EventArgs e)
{
// Setting expiry date & time of the cookies
Response.Cookies["basket"].Expires = DateTime.Now.AddDays(-1);
}
protected void Submit_Button(object sender, EventArgs e)
{
ChoiceLabel.Text = "";
// Creating Cookies
if (apple.Checked)
Response.Cookies["basket"]["apple"] = "apple";
if (orange.Checked)
Response.Cookies["basket"]["orange"] = "orange";
if (guava.Checked)
Response.Cookies["basket"]["guava"] = "guava";
if (kiwi.Checked)
Response.Cookies["basket"]["kiwi"] = "kiwi";
if (banana.Checked)
Response.Cookies["basket"]["banana"] = "banana";
if (strawberry.Checked)
Response.Cookies["basket"]["strawberry"] = "strawberry";
// Fetching Cookies
if (Request.Cookies["basket"].Values.ToString() != null)
{
if (Request.Cookies["basket"]["apple"] != null)
ChoiceLabel.Text += Request.Cookies["basket"]["apple"] + " ";
if (Request.Cookies["basket"]["orange"] != null)
ChoiceLabel.Text += Request.Cookies["basket"]["orange"] + " ";
if (Request.Cookies["basket"]["guava"] != null)
ChoiceLabel.Text += Request.Cookies["basket"]["guava"] + " ";
if (Request.Cookies["basket"]["kiwi"] != null)
ChoiceLabel.Text += Request.Cookies["basket"]["kiwi"] + " ";
if (Request.Cookies["basket"]["banana"] != null)
ChoiceLabel.Text += Request.Cookies["basket"]["banana"] + " ";
if (Request.Cookies["basket"]["strawberry"] != null)
ChoiceLabel.Text += Request.Cookies["basket"]["strawberry"] + " ";
}else ChoiceLabel.Text = "Please select your choice";
Response.Cookies["basket"].Expires = DateTime.Now.AddDays(-1);
}
}
}
Output:
Ideal:
On Submission:
FAQs
-
What is ASP.NET?
ASP.NET is an open-source, server-side web development framework designed to produce dynamic web pages. Microsoft developed it to allow programmers to build active websites, applications, and services.
-
What is ASP.NET in C#?
ASP.NET is a web-based application framework developed and marketed by Microsoft to let programmers build dynamic websites. It will enable you to use a full-featured programming language such as C# or VB.NET to build web applications quickly.
-
What is the difference between ASP.NET and C#?
The difference between ASP.NET and C# is that ASP.NET is an open-source framework for web application development to create dynamic content over web pages. C# is an object-oriented, functional, generic, imperative, and component-based programming language.
-
What are ASP.NET Cookies?
ASP.NET Cookies are text files with small data like a username and password to identify a computer as you use a computer network. Specific cookies known as HTTP cookies identify particular users and improve your web browsing experience.
-
How to clear the cookie information?
We can clear cookie information from the client machine on the cookie folder. Set expires to cookie object like:
userInfo.Expires = DateTime.Now.AddHours(1);
It will clear the cookie within an hour.
Key Takeaways
This article teaches about ASP.NET Cookies and how we use them. We saw why ASP.NET Cookies could be beneficial for a developer to learn.
Click here to read about the Top 10 web development frameworks. Apart from this, you can also expand your knowledge by referring to these articles on Features Of ASP Net and ASP Full Form. Check out our Web development course and blogs on Backend Web Technologies.
If you are preparing for your DSA interviews then, Coding Ninjas Studio is a one-stop destination. This platform will help you acquire effective coding techniques and overview student interview experience in various product-based companies.
Happy Learning!
240+ registered 
