Web Forms :: Best Method Of Leaving A Cookie On A Users Machine ?

Oct 3, 2010

I want to store a users dialect in a cookie on his machine, and then look it up before loading the version of my web app. What is the code to do that.

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Response.Cookie Client Or Server/where Does The Cookie Saved? On Client Machine Or Server Machine?

Mar 7, 2011

When calling Response.Cookie.Add(new HttpCookie("MyCookie", "objValue")); where does the cookie saved? on Client Machine or Server Machine?

EDIT:if saved in Client Machine, how can I read it from javascript then? I tried this kind of script.

function getCookie(c_name) {
var i, x, y, ARRcookies = document.cookie.split(";");
for (i = 0; i < ARRcookies.length; i++) {

I cannot get the cookie that I saved from code behind. When I look into the document.cookie object, it is just an empty string.

Scenario:On Page_Init() on code behind. I create a cookie using Response.Cookie.Add(new HttpCookie("MyCookie", "cookieValue"));.
On Client side, I'm trying to read the cookie saved from code behind on page load using the snippet above, but it returns undefined

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For some reason my users are logged out of the system every 10-15 minutes or so...regardless of the configuration below....am I missing something?


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Sep 2, 2010

I have deployed a Web application on IIS 6. I want to prevent my server from setting cookie on the client browser. I am using the following setting on the web.config file.

< sessionState
cookieless="false" [code]....

However, it looks like its creating a default cookie named ".ASPXAUTH" in the client machine. I dont want my application to create any sort of cookie.Is there anything specific I need to do in web.config?

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Web Forms :: How To Get IP Of Users System Machine When Visits Page

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How I can get the IPS of all the computers through which users are accessing my website.

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Web Forms :: How To Store Data In Client Users Machine Memory

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i Have multiple File upload. press Uploaded button it will store on sever temp folder. those details are in List  on our program.

when i have press the submit then only those listed files fetch form server-temp-Folder and replace in server-secified- folder.

i want to make those list class save into client location for not affted by some of other updates.

how cn i store the custome list in client memory

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Different Users Get The Same Cookie - Value In .ASPXANONYMOUS?

Mar 15, 2010

My site allows anonymous users. I saw that under heavy load anonymous users get sometimes profile values from other users.

I first delete my cookies and get a valid unique value in the cookie value .ASPXANONYMOUS. After a couple of requests I get a new value for .ASPXANONYMOUS which is already used by another user. I see in my loggs that there are always a couple of users who share the same value in .ASPXANONYMOUS.

I can see in the my logs that 2 or more users realy get the same cookievalue for .ASPXANONYMOUS even if they have different IP.

Here is the htttp traffic. In the second image the changing cookie is shown (You have to display the image full size do be able to read the log):

One of the many requests that work ok:

Then there is this one request that changes the cookie

Then the new cookie is used

Just to be safe I removed dependency injection.

I dont use OutputCaching.

My web.config has this setting for authentication:

<anonymousIdentification enabled="true" cookieless="UseCookies" cookieName=".ASPXANONYMOUS"
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<authentication mode="Forms">
<forms loginUrl="~/de/Account/Login" />


I saw now that the http-traffic I showed is perfectly valid. A changing value in .ASPXANONYMOUS is something that happens because the cookie gets refreshed. The value contains AnonymousID and a Timestamp.

This does not lead to users having the same value in .ASPXANONYMOUS under normal conditions.

The problem realy is, that whenever the cokies get set from the AnonymousIdentificationModule, then there is a chance that a couple of user get this cookie. Setting a cookie in my application doesnt have this strange sideefect.

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Web Forms :: Find Computer Name And IP Address Of Users Machine And Save It In Database?

Feb 11, 2013

i have a asp.net web with vb code and sql database. i am willing to store the details of the users as ip,computer name and time of using the web is it possible.

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JavaScript - Tracking Users When They Have Cookie Disabled?

Mar 29, 2011

What is the best way to track users on our Asp.net websites if they have there cookie disabled.

I heard about Flash cookies but could not find a good resource to access the flesh cookies using Asp.Net or JavaScript.

Does anyone know a better method?

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Get The Ip From Users Machine?

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Does anyone know how I can get the IP of a users machine using c#? Possible?

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State Management :: Save Cookie When Users Marks The Remember Me Box But Its Not Working?

Apr 1, 2011


i'm using this to save a cookie when users marks the remember me box but its not working.

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C# - How To Read Cookie That Written In Login Method

Aug 28, 2010

If the login code int [URL]we will found that they create cookie as below

new HttpCookie(FormsAuthentication.FormsCookieName, encTicket)

I want in another code to read this cookie and check it .. how can i do although i don't know the name of the cookie ?

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Save Downloaded File To Specific Folder On Users Machine

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How to save a text into a specific folder of computer(in document) by default, when the user clicks yes(for,Do you want to save the file?) to save a file into his computer? If the folder doesnot exist create and save the textfile?

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Process.start() Method Is Not Working In Server Machine?

Mar 29, 2011

In my project i am having the VB Script file openHTML.vbs which is used to open the .HTML file in the server location.

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Web Forms :: Stop User Leaving Before Postback?

Mar 13, 2011

I have several functions running on a postback that can take a little time to complete.When postback is initiated I show a loading image with this code:


I want to be able to add code to this function so if user tries to leave at this point they are informed the operation is not complete.I found this code:


This works but I only want the code to be active when the loading image is active.I tried the following but it shows the alert message when the page eventually posts back:


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Web Forms :: Warn User When Leaving A Page With Changed Data?

Jan 28, 2010

I'd like to know how I can warn a user when they're leaving a page where they've changed data (i.e. "You have unsaved data on this page, are you sure you want to abanon it?"). For example, the page has a few dropdown lists, some textboxes, etc. I'd like to warn them if they try to leave the page before saving the data. How can I do this? To add to my confusion, I also have a dropdown menu control (skmMenu) on the page that doesn't seem to have any events I can tie into.

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Web Forms :: Copy File From Local Machine To Device Connected To This Machine

Mar 24, 2010

1. ASP.Net WEB server.

2. I have PC, on which file to copy to device is located, with Active Sync installed and IE running which has a page in that IE has rendered by server #1.

3. I have a DEVICE connected to desktop #2 via AS.

I would like to copy file from a local machine to the device which is connected to this machine. My application is located in a webserver.

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Saving A File Into Special Folder When File Is Downloaded On Users Machine

Jul 2, 2012

I need to save a file into special folder.

if (TextBox1.Text == s)
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It creates a folder abc if it doen't exist, i need to save s where s is a textfile.

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Forms Data Controls :: Prompt User When Leaving The Gridview Row In Edit Mode?

May 19, 2010

I have to warn the user when leaving the gridview row in edit mode without saving or cancelling the data. How can I achieve this? I have a javascript function which simply prompts the user when he/she leaves the screen which is not serving the purpose.

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State Management :: Remove Item (Cookie) From Basket (Cookie Collection)?

Sep 8, 2010

I am busy building a shopping cart with cookies. I have datalist which I populate from the cookies with a delete button next to each cookie


Now the problem is that when I hit the delete / remove button to expire the cookie, what happens when repopulating the datalist is that it shows the original cookie with all it's values as well as a new entry where all the values are blank.

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State Management :: Updating Cookie / Change The Value In A Cookie?

May 10, 2010

I want to change the value in a cookie:
HttpCookie hc = new HttpCookie("HiddenColumns");
hc.Value = customView.HiddenFields;
hc.Expires = DateTime.Now.AddDays(365);

Or this way:

Response.Cookies["HiddenColumns"].Value = customView.HiddenFields;;
Response.Cookies["HiddenColumns"].Expires = DateTime.Now.AddDays(365);

But when I retrieve the cookie value, it is still old, unless I do postback. I don't want to use Redirect.

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Bad Request 400 Error - Leaving URL

Jan 4, 2011

Why leaving following URL leads to bad request error: [URL] It happens both - if I redirect to, say, ~default.aspx programatically (response.redirect("~Default.aspx"), and if I simply press to asp:hyperlink with URL="~Default.aspx" AND If I try to repeat this error on VS Dev.Server - it doesn't happen. If I try to repaet it by browsing IE on my server machine - it doesn't repeat! It happens only if I browse from dev. machine to uploaded website.

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WCF / ASMX :: Cookie Refuses To Get Set When Asking For A Cookie From Webservice

Jun 8, 2010

I'm trying to use a webservice that first expects the clients to login, to retrieve a cookie to re-use.
This is done through a login(string user, string pass) method on the webservice.

Doing this through a browser works fine, we get a cookie, and we can see the cookie via Fiddler or whatvever proxysniff thingy.

Time to do the same in ASP.Net, so we use the WSDL and generate a nice proxy class, and it works fine to call the login() method, but Never Ever does a cookie get set !

I already used the "cookiejar" technique - which means i create an instance of a CookieContainer and assign it to the proxyclass like this;

var cookies = new CookieContainer(3);

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How To Launch The Download Of A File Without Leaving The Current Page

Mar 2, 2011

How can I force the download of a file on a ASP.NET page using datas from that page's ViewState?

Response.ContentType = "text/plain";
Response.AddHeader("Content-Disposition", "attachment; filename=" + "example.aaa");
Response.Write( this.ViewState["stuffs"] );

But if I do that the current page will be erased and return blank to the user.

Other examples says to create "download.aspx" and request it by javascript, but on a this new page I won't have access to the ViewState data of the first page.

The point is, how can I create a file, launch the download and don't lose the current page status?

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State Management :: Set Value To Null Where User Is Leaving The Page?

Jan 10, 2011

I want to terminate an application stat or set value to null where user is leaving the page...

does anyone know how can I do that?

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