Web Forms :: Prevent Use Of Modifying Tampering URL Or QueryString In Browser
May 21, 2013ASP.Net (C#) ... I have a URL like mydomain.com/detail.aspx?id=1. I want to no any one can change or remove content from my query string...
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C# - How To Prevent Or Handle Tampering With Form Data Of Disabled Fields Before Submission
Apr 6, 2010If a disabled drop-down list is dynamically rendered to the page, it is still possible to use Firebug, or another tool, to tamper with the submitted value, and to remove the "disabled" HTML attribute.
This code:
[code]....
The problem occurs when I use Firebug to remove the "disabled" attribute, and to change the selected option.On submission of the form, and re-creation of the field, the newly generated control has the correct value by the end of OnLoad, but by OnPreRender, it has assumed the identity of the submitted control and has been given the submitted form value.
.NET seems to have no way of detecting the fact that the field was originally created in a disabled state and that the submitted value was faked. This is understandable, as there could be legitimate, client-side functionality that would allow the disabled attribute to be removed.
Is there some way, other than a brute force approach, of detecting that this field's value should not have been changed?
I see the brute force approach as being something crap, like saving the correct value somewhere while still in OnLoad, and restoring the value in the OnPreRender. As some fields have dependencies on others, that would be unacceptable to me.
C# - Prevent Users From Modifying Date In Textbox?
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View 1 RepliesWeb Forms :: Prevent Browser Alert During Close?
Mar 9, 2011i 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;
self.close();
in ie7 and ie8 i prevent this by using coding
window.open('', '_self', '');
window.close();
but, problem is which code will prevent for all brower(ie6,7,8) asking the message.
Web Forms :: How To Detect And Prevent New Browser Instance
Aug 25, 2010The 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.
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Web Forms :: Prevent Copying The URL To A New Browser Window?
Dec 15, 2010My 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.
[Code]....
[Code]....
Web Forms :: How To Prevent The Two Session On A Single Browser
Mar 22, 2011how 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 session.how to prevent or avoid this ?
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View 1 RepliesWeb Forms :: Prevent URL Change In Browser When Navigating From One Page To Another?
Nov 13, 2013i want to redirect from one web page to another web page in same server with some query string values, but i don't want to change my URL string and i don't want to display any query string parameters in URL.
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Mar 24, 2010I have used querystrings in many webpages. When user click hyperlink then it moves to next page but there is a very long string is being displayed in the Address bar of the browser.
I just want to show like this:
[URL]
Not like this:
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View 1 RepliesForms Data Controls :: Work When The Page Load Not When Pass The Querystring On The Browser?
Oct 16, 2010 i have a page, when the page loads, nothing shows up, when i pass the querystring on the browser as [URL]
I want it to work when the page load not when i pass the querystring on the browser.
Here is the code:
[code]....
[Code]....
[Code]....
Web Forms :: Prevent Multiple Browser Windows Or Tabs From Sharing Same Session
Mar 6, 2013Preventing user to open duplicate web application,while it is running .....
View 1 RepliesWeb Forms :: How To Prevent Alert Message Box When Browser Back Button Is Pressed
Jun 5, 2013I am running one application where one gridview is there when i am deleting any data there it shows one message for deleting.
for message i used this code:
ClientScript.RegisterStartupScript(this.GetType(), "ShowMessage", string.Format("<script type='text/javascript'>alert('{0}')</script>", "this row is deleted"));
after that i am going to some other page ,after going other page when i click on back button in browser it is coming in the previous page but the message which poped up before again getting popup.
Web Forms :: Prevent Event Execution When User Refresh Browser After Submit Form
Jul 1, 2013I am build Web site using asp.net 4.0 c# ... There are a forum on my website where user can save his personal details. my problem is that when user submit his detail in database and again refresh URL (f5), event again arise and request go to server, double entry saved in database. How I can handle it.
View 1 RepliesWeb Forms :: Prevent Browser From Caching Image - Trsponse.Cache.NoStore Didn't Work
Feb 22, 2011[Code]....
How to prevent browser from caching image, Trsponse.Cache.NoStore didn't work
Protect From Tampering Of Query String?
May 11, 2010I have a query string like "http://project/page1.aspx?userID=5". The operation won't be performed, if the 'userID' parameter changed manually. How it is possible?
View 7 RepliesSecurity :: Storing A Token In Browser Or In Querystring?
Feb 17, 2010We have developed a system to allow users to access another one of our web applications by placing a token in the db and then when they redirect passing this token in the browser to the new apop and using that as an authenication method. However I am thinking that it might be better to simply place this token in the browser cookie as then the user doesnt have to physically click a link they can simply do straight to it because the token wont be in the query string anymore....
Will it add much of an overhead doing it via cookies are there any disadvantages?
Page Cannot Load When Pass The Querystring To The Browser
Oct 16, 2010It works when i pass the querystring on the browser as this: http://localhost:51765/foo/foo.aspx?ID=c516f4f4-36a9-40a7-baad-d2419ea631b9 want it to work when the page load not when i pass the querystring on the browser.
<asp:SqlDataSource ID="categoriesDataSource" runat="server"
connectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId) ORDER BY [Name]">
[code]...
JavaScript - Prevent Browser From Closing C#
Jul 20, 2010I am using asp.net 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.
Redirect / Remove QueryString But Don't Create History In Browser
Aug 19, 2010I'm looking for a way to get rid of the querystring of a page and redirect to itself but preserver the querystring data in some way. Exmaple: [URL] should redirect to [UL] Still, after the redirect, I want to be able to pick up the parameters that were originally passed. And I don't want to have [URL] in the browser's history.
What I tried so far:
* Response.Redirect(): does a proper redirect without creating browser history but I cannot preserver the parameters.
* Server.Transfer: preserves the parameters but the browser's URL remains unchanged.
* Create a client form on the fly and submit in "onload": works, querystring is gone, parameters are accessible through Request.Form, but creates a history entry in the browser.
The only thing I can currently think of is to store the parameters in the session, then redirect, then pick them up from there.
VS 2008 Prevent Back Button On The Browser?
Jul 14, 2010i 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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