Prevent Urls From Showing In Browser's Status Bar?

Jan 29, 2009 01:30 PM

You know when you hover over a hyperlink, the address appears in the bottom of the browser (status bar?).

Controls inside updatepanels which cause postback reveal the identity of the page for instance "/forums/default.aspx", any way to hide this?


Web Forms :: How To Prevent Web.config From Showing In Browser When Error

Oct 28, 2010 09:54 PM

Whenever there is a configuration error inside the web.config, the server sends a yellow screen of death to the browser with a few lines around it. My problem is I am using impersonation and I don't want the users to see the impersonating username/password. So how can I prevent the server from showing the web.config code??

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AJAX :: How To Prevent Status Aborted - Status Should Be 200 OK Instead Aborted

Oct 01, 2010 03:40 AM

i am developing an online mmorpg game . so speed is very important . i have a complex map system which is coded by me . at this map system for walking i am using ajax . using iis 7.5 and netframework 3.5 .

at this page you can use w,a,s,d or keyboard arrow keys for walking [URL] ( username : test1234 , password : test1234 )

as you can see at image below when a player pushes the movement buttons faster ( without waiting to move completed ) status being aborted so it really prevents walking faster i want to prevent this is from happening ( disable buttons to be pushed so fast until post event completed )



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Saving Links (urls) To Files And Then Opening Them Via Web Browser?

Mar 09, 2009 06:20 PM

1) Allow user to browse to a file that resides on a server within the user's lan
2) Store the file's path (true path, not mapped network id) in database
(i can store the path in database just don't know how to get it...via ui)
3) open the file or stream it to the client later via the url.

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Showing Upload Status When Uploading File In Vb?

Oct 17th, 2010, 02:55 AM

I have programmed a script to upload image files from users computer to my server. It works fine for up to about 4MB files, larger have the 'connection reset' error which I believe can be resolved easily in the web.config file.

Anyway, I would like to show a status bar to tell the user how much of the file has been uploaded so they don't try repeatedly clicking upload button thinking nothings working -

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How To Prevent Users From Downloading A File Useing "direct Targeting" URLs

Oct 15, 2009 10:24 PM

how do you actually prevent a user from beeing able to download a file by directly targeting the URL to the file in the adressbar?

Lets for instance say we have the file "" and its placed in the root directory for a domain called we just put the ""-file directly in the very root, then we whould be able to type[URL] and then we whould be able to download the file...but how do I prevent that? there a way?..cause maybe I just want speciall users to be able to download that file..

To put it in a more realistic case....lets say we actually have created the above site, but in this case you can actually buy the file ""...then you only want customers to be able to download it..and preventing people from simply typeing the URL..

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JavaScript - Prevent Browser From Closing C#

Jul 20 10 at 13:54

I am using 2.0 with c#.

i want a pop up to be displayed when user tries to close the browser and if user click on "no" [i.e. he don't want browser to be closed] then it prevent browser to get closed.

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Web Forms :: How To Prevent Server Controls Showing When Loading Page

Sep 03, 2009 12:54 PM

I have several parts to my website where i use web controls.I have a login page which uses the login wizardWhen i load the page it shows the items being positioned. i am using css for positioning setting the margins.How can i prevent users seein the positioning?

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Logic For Fixing Relative Urls To Full Urls

Nov 16 10 at 22:14

i have a function that pulls URLs from various web resources. needless to say some are full valid URLS and some are relative as per the HTML of the page. below is my c# logic i derived for examining the URL and then generate a full usable URL from whats pulled from the site...

origianlurl is the full url of the first searched page, and relativeUrl is a url found within the searched page (it can be a full or a /contactus.html)
private string ResolveRelativePaths(string relativeUrl, string originatingUrl)
if (relativeUrl.StartsWith("http") || relativeUrl.StartsWith("www"))
return relativeUrl;
if (relativeUrl.StartsWith("/"))
//get main url

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Web Forms :: Prevent Browser Alert During Close?

Mar 09, 2011 10:00 AM

i have issue with browser close prompt;

"the webpage you are viewing is trying to close the window"

in ie6 i prevent this by using coding

self.opener = this;

in ie7 and ie8 i prevent this by using coding'', '_self', '');

but, problem is which code will prevent for all brower(ie6,7,8) asking the message.

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Web Forms :: How To Detect And Prevent New Browser Instance

Aug 25, 2010 07:14 PM

The web app in question provides a UI for editing a client (in the business sense, not the browser sense), identified by a ClientID. I store the ClientID in Session, which gets passed from page to page, along with a number of other pieces of data in Session. Works great.

The problem is that if the user opens a new browser window using Ctrl N or File->New Window (in IE), the new window comes up with the same page as the current page, with the same session info. Then if the user navigates to a different client in the 2nd window, the ClientID in session refers to the new client. If they go back to the original browser window and save, the original client gets saved using the 2nd ClientID, and all hell breaks loose, because now the data from the two jobs are intertwined.

I have enabled trace and verified that the new browser window uses the same SessionID as the original. If an entirely new instance of IE is opened, it has a different SessionID, so is not a problem. I have not yet investigated other browsers, such as Chrome or Firefox.

Is there any way to determine if a browser instance is opened for a web app which is already open in another window or tab? Or to prevent that from happening?

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Web Forms :: Prevent Copying The URL To A New Browser Window?

Dec 15, 2010 12:24 PM

My problem is am filling a form in a webpage, and click on save for instance, take the URL of mu webpage and paste it in a new window and it loads all the information I subscribed, how can I prevent that knowing that I used the Below code and it does nothing

I need to know how to add a randomly generated token as an additional parameter in my request.



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VS 2008 Prevent Back Button On The Browser?

Jul 14th, 2010, 08:57 PM

i just like to ask if you have any idea of preventing the Back button of the browser to navigate back to the previous page after a user log in.Ex:After a user successfully logged in to my website and he/she hit the Back button of the browser.I want this to not redirected to the previous page instead redirected to the same page which is my Main page.Also after a user logged out to my website and again he/she hit the Back button of the browser.I also want this to not redirected to the previous page instead redirected to my login page.

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Web Forms :: How To Prevent The Two Session On A Single Browser

Mar 22, 2011 06:44 AM

how to prevent the two session on a single browser ie: first i opening a site on mozilla then login after logged in . I am opening a new table with the same url login using different user after that suppose there is one link called view my profile on user home page if if click the link on first tab browser, it showing the user details on second tab browser user details ie: previous to prevent or avoid this ?

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C# - Prevent Opening Of Application On Browser Refresh?

Dec 19 10 at 4:21

I have an ASP.NET/C# application that exports some data into an Excel spreadsheet using COM interop at the click of a Button control. When I click the button, Excel is opened with the generated spreadsheet. For what it's worth, here is the button code:

<asp:Button ID="export" Text="Export to spreadsheet" runat="server" OnClick="Export_Workbook" />

This works fine, except when I click the button, close the subsequent spreadsheet, and refresh the page. When the page is refreshed after clicking the button, the call to Export_Workbook() is made again and so the spreadsheet opens again. Firefox, for example, says this when you refresh: "To display this page, Firefox must send information that will repeat any action (such as a search or order confirmation) that was performed earlier." This is something I want to avoid.

I'm sure there's a better way to accomplish what I'm trying to do, I'm just not sure what the best approach is.


I've accomplished this by doing the following:

protected void Export_Workbook(object sender, EventArgs e)
Response.Redirect(Request.Url.AbsolutePath, false);

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Security :: How To Prevent Webpage From Saving In Browser

Jul 28, 2010 11:03 AM

i want to protect webpage from saving from browser file->save as. i found some sites did it(facebook,orkut). when i try to save pages on that sites only home page saved. how to do this in c#

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C# - How To Prevent Fckeditor To Resize In Chrome Browser

Feb 28 at 10:29

I have use fckeditor in When user open the page containing fckeditor in Chrome. User can resize the text area of fckeditor. I want to prevent this.i.e.user should un-enable to resize the text area.

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AJAX :: Auto Complete - Web Service - Prevent Authentication Form From Showing?

Jul 19, 2010 07:25 PM

I have set up the Auto complete control and the web service to populate it, this web service resides within the project that uses it, it works fine on my machine (if I had a nickel for every time I heard that from a developer...) , but when I install it on Dev, the site asks for authentication, then when I select the tab with the textbox that has the Auto Complete control, it asks me for authentication again. If I remove the Auto Complete control, it no longer asks me. The funny thing is, I can enter authentication info OR just click cancel and the web service works fine.

In the IIS site on Dev and in the Web config, I have turned off authentication (in IIS I use anonymous and in the Web.config, I set it to "none") My development machine is in a domain, for some reason beyond my control, both Dev and Prod are not in a domain; both Dev and Prod machines are Server 2008. how to prevent this authentication form from showing???

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Prevent Formview From Posting Back On Browser Refresh?

Feb 11, 2009 02:02 PM

I have a Formview control to upload pdf files. But sometimes after i had uploaded my files if i refresh my page it submits the same file again. I did some research and i found that i need to use something like If Not Page.IsPostback = False clause at the beginning of my code but i dont know how to properly use this.


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Prevent Multiple User Logging Into The Same Domain Using The Same Browser?

Jul 10 10 at 14:38

So its a ASP.NET problem where two users using the same machine, same browser:

User 1 logs in the domain.
User 1 changes some data without saving it.
User 2 logs in the domain in a separate tab.
User 1 switches back to his tab and saves the data.
User 1 actually saved the data into User 2!!

This is caused by the following mechanism:

Different tabs in the same browser seems to share the same session id.

We are storing user auth in cookie and the cookie is shared between tabs (same domain)

Therefore, when User 1 request to save, it is recognized as User 2 since the cookie has been updated to User 2.

So I'm wondering if there's any other methods to prevent this from happening, other than:

1. Use cookieless session so the session is embedded in uri.
2. Always include a hidden field in page to indicate which user owns the page.

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How To Prevent Multiple Browser Windows From Sharing The Same Session?

Mar 25 10 at 16:52

I have application that is basically a data entry screen for a physical inspection process. The users want to be able to have multiple browser windows open and enter data from multiple inspections concurrently. At first I was using cookie based sessions, and obviously this blew up.I switched to using cookie-less sessions, which stores the session in the URL and in testing this seemed to resolve the problem. Each browser window/tab had a different session ID, and data entered in one did not clobber data entered in the other.

However my users are more efficient at breaking things than I expected and it seems that they're still managing to get the same session between browsers sometimes. I think that they're copying/pasting the address from one tab to the other in order to open the application, but I haven't been able to verify this yet (they're at another location so I can't easily ask them).Other than telling them don't copy and paste, or convince them to only enter one at a time, how can I prevent this situation from occurring?

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C# - Prevent Config Files Error To Render In Browser?

Jan 15 at 10:59

I have a custom config file in my application say my.config. Suddenly I ecnountered with some error regarding one of the settings inside the config file and the strange thing happens- my content of the config file get's rendered in the browser in the form of error. This is a big security issue for me. My question is how to prevent the content of my config files from rendering in the browser. Note I have already this setting in my web config:

<customErrors mode="Off" defaultRedirect="errors/default.aspx"/>

I am wondering why did not it redirect to error page? we had the settings turned onstill it displayed the straight error.

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Prevent Flickering On Click Of Browser Back Button?

Apr 12 10 at 11:37

I am working on Asp.Net application.I wrote the below JavaScript code to prevent the user to not going to login page on click of browser back button when he logs into the application.It is working fine for me,but from the homepage when i click on browser back button,the flickering appears due to post back.How to prevent the flickering.

`function preventBack()
setTimeout("preventBack()", 0);

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Forms Data Controls :: How To Prevent A Directory Showing On Template Field Hover?

May 11, 2010 05:50 PM

i have a template field which shows a picture of a paper clip. Upon click it will open a file from a shared directory. It is a basic application for Expense Reimbursements in which users are allowed to upload scanned expense receipts. After the receipts are uploaded they can also be viewed by clicking on the paperclip icon. hile I want them to be able to save and open the files from the shared directory, I do not want them to know what the directory name is. I want to prevent them from viewing other user's expense receipts. Share name: \serverAExpenseReceipt$


definition of the template field above.

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How To Prevent The Credit Card Number Field Being Cached By The Browser

Apr 26 10 at 16:41

I have an input field on a webpage that contains a credit-card number. What is the best way of preventing the browser from caching this value?

Any solution needs to work on a large selection of browsers.

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C# - Prevent Browser From Resending Form Information That Has Already Submitted To Server?

Nov 3 10 at 10:22

how i will prevent user to resend data from refreshing URL. actually after posting data to the server and returning back data by the server to the client. if user refresh the url address then again it send back to the server withe previous data. so how can i prevent it by c#,

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Image Not Showing In Browser?

May 07, 2010 02:10 AM

In my Development Environment, I can see my Image on my web form, but when I build my application and copy to Local Host,

Images are not showing on both browser Internet Explorer and FireFox.

Is there setting for this?

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VS 2005 Disable Browser Back Button Or Prevent Previous Pages From Being Accessed?

Jun 27th, 2009, 04:35 PM

Iím using visual studio 2005 and VB

I am working on a web site that will be a testing website. On the first page (frmSelectTest.aspx) the user will enter his username, password, select a test to take then click a button and a new page(frmTakeTest.aspx) will open with the test questions. After taking the test the user will click a button to grade the test and he will automatically be taken to another page (viewResults.aspx) where he can view the results of the test. After viewing his test results there will be a link that will take him to another part of the website.

I donít want the user to be able to use their browser back button to go back to the first page (frmSelectTest.aspx) from the test page (frmTakeTest.aspx) or be able to use the browserís back button to go back to the test page(frmTakeTest.aspx) or back to the select a test page (frmSelectTest.aspx). I havenít been able to figure out how to disable the browser back button and prevent the user from returning to previous pages.

I can user Server.Transfer which seems to disable the browser back button but it doesnít work consistently, sometimes it works and sometime it doesnít. I have searched the internet and found several examples but I couldnít get any of them to work.

Some things Iíve tried in the page load event but canít get to work


Response.Cache.SetExpires(DateTime.Now //or a date much earlier than current time
Iíve also tried:


Response.Buffer = true
Response.Expires = 0
Response.ExpiresAbsolute = DateTime.Now.AddDays( -1 )
Response.CacheControl = "no-cache"

I havenít been able to get any of the examples to work. I know disabling the browser back button or preventing previous pages from being access is a common thing.

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C# - Prevent Thread.CurrentThread.CurrentCulture To Switch To The Default Browser Value After Setting It Manually?

Aug 26 10 at 8:16

In my current application I want to implement ASP.Net localization with global resources. I have the problem, that after changing the CurrentThread.CurrentUICulture and CurrentThread.CurrentCulture and changing to another page, these values are overwritten by the browser default values.

I have a DropDownList that enables a selection between different languages. In the ItemChanged Event I store the culturename in the session, redirect to my defaultpage and use this code

protected override void InitializeCulture()
System.Threading.Thread.CurrentThread.CurrentUICulture = new CultureInfo("de-DE");
System.Threading.Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE");

After switching to another contentpage, that does not override InitializeCulture I'm back to the default browser language. How can I make that persistent?

What options do I have? The following come to my mind:

On every *.aspx page I do implement InitializeCulture I create a new class that derives from System.Web.UI.Page and overrides the InitializeCulture Eventhandler. Every *.aspx page I use derives from it.

Isn't there a more "built-in" way? offers such good localization support, so I guess there must be an easier/more efficient way to achieve my goal. Which one is there?

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Webpage Not Showing Up In Client Browser?

Mar 07, 2011 03:16 PM

I have a simple web page as below named eventviewer.aspx. I host it in a server under the default website and when i browse it from the INETMGR it opens and displays teh events.

But when i try to open it from another machine, by reqyestiung the page, it just shows the heading and not the grid. Can you provide some inputs??


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Rating Stars Not Showing Up In Browser?

Apr 30, 2009 05:44 PM

In the design mode the stars shows up in all thier glory, but when I run the application they do not show up in the browser. I've read through some of the previous post here on the subject. One such post suggest checking if the url path is correct. I did just that. And verified it against other URL paths with in the CSS. For example, the URL path for the background image works since the background appears in the browser. The URL paths for the stars are in the same format as the background url. So I don't know why they are not showing up in the browser. Below is my css and aspx information.



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Web Forms :: Prevent Browser From Caching Image - Trsponse.Cache.NoStore Didn't Work

Feb 22, 2011 01:46 AM


How to prevent browser from caching image, Trsponse.Cache.NoStore didn't work

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Showing PDF In A Browser And Getting The Text Selected By The User?

Apr 1 at 17:30

I want to show a PDF in browser, from which user can select text, showing pdf is very easy i have done this using "pdfviewer" control, now i want to get the selected text which the user selects in the PDF, is there any way to achieve this? i am using

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Web Forms :: Showing Power Point Slides In Browser?

Apr 24, 2006 07:33 PM

I am trying to display Power Point Slide over browser. I do not want visitor to download .ppt/.pps file and then open it in power point. Is there anyway to display slides directly to browser using C#.

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MVC :: Webgrid Not Showing In Browser After Clicking A Heading To Sort By?

Mar 19, 2011 03:16 PM

I am using a Webgrid as part of an MVC 3 app. The weird thing is the first display of the page with the grid displays fine but when I click on a heading to sort, the grid is not displayed as part of the page when I am running under the web server provided by the VS 2010 installation. When I do a View Source of that page, all of the grid stuff (as table elements) is there to be displayed. It just does not show up in the browser. So, I wrote the html to a file and copied the javascript and css files to the same folder and then ran the file under IE and everything displays as it should.

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MVC :: Write View To Disk As A File Instead Of Showing In The Browser

May 27, 2010 03:20 PM

I've a view which display all data. I'm using ViewData, for loop etc.. on the view, to show the data. It may sound weird, but is it possible to write view to disk as a file instead of showing in the browser. The reason is that, business wants functionality to send the same view file as email attachment to the user.

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C# - End User To Use My Silverlight Media Player Application In Browser To Play The File, Prevent Them From Download To Local Directly?

Mar 4 10 at 4:47

I am using VSTS 2008 + C# + .Net 3.5 + Silverlight 3.0 + ASP.Net to develop a Silverlight application (a video media player) in browser and the function is simple, just use MediaElement to play a remote video file.The remote server is Windows Server 2008 + IIS 7.0 + IIS Media Bit Rate Throttling Control.Since the request media URL can be discovered (e.g. from traffic sniffer), and I want to know how to prevent from download directly from the Url? i.e. I want end user to use my Silverlight media player application in browser to play the file, prevent them from download to local directly. Any easy and quick solution or reference code/documents?

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AJAX :: Control Not Showing In The In Browser And Sometimes In Desinger VWD2010 B2. No Error Displayed?

Mar 23, 2010 01:18 PM

I am using VWD 2010 beta 2 and Ajax toolkit 3.031106, the problem is mainly the calendar extender.I have the controls in my new tab but cant drag the calendar extender (just get the crossed black circle cursor). Some control I can drag down other not and none of them shows when I look at the page in my browser.there are no errors displayed at all.

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Security :: When The Function Returns Ssl Value, If It's Not Empty, Then The Master Page Redirects To The New Url... But The Browser Is Not Showing It?

Oct 20, 2010 12:28 PM

I'm trying to set up the SSL in my web app, but don't know if i'm doing it right, or if even i'm taking the right steps in the right order.I have a function in a class that returns the secure URL ( if the current url is not secure (http)


(Though in develop environment It's like "https://localhost:port" + rawUrl)

when the function returns ssl value, if it's not empty, then the master page redirects to the new url... but the browser is not showing it...

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Setting Response / Status Generates "HTTP Status String Is Not Valid" Exception?

Jan 9 at 5:06

I'm writing an HTTP handler in ASP.NET 4.0 and IIS7 and I need to generate a file-not-found condition.

I copied the following code from Mathew McDonald's new book, Pro ASP.Net 4 in C# 2010. (The response variable is an instance of the current HttpResponse.)

response.Status = "File not found";
response.StatusCode = 404;

However, I found that the first line generates the run-time error HTTP status string is not valid.

If, instead of the lines above, I use the following:

response.Status = "404 Not found";

Then everything seems to work fine. In fact, I even see that response.StatusCode is set to 404 automatically.

My problem is that I don't want this to fail on the production server. So I'd feel much better if I could understand the "correct" way to accomplish this. Why did the first approach work for Mathew McDonald but not for me? And is the second approach always going to be reliable?

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