Web Forms :: Free Text Box With In A Master Page.error/ Form Value Was Detected From The Client
Apr 9, 2010
When Iuse FTB in a normal web form I am having no issues. However when I create a master page then a web form that uses that master page I get the following error when pulling text from the FTB control
A potentially dangerous Request.Form value was detected from the client (ctl00_ContentPlaceHolder1_FreeTextBox1="<b>My TEXT</b>")
I get this error only when it uses html tags and only when its in a form that uses a master page.
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Sep 28, 2010
I am writing a database to store code extracts which will make our life easier at work, I have a text box which retrieves HTML characters, I have no problems in displaying them, however if I click the edit button to amend text I get the error "A potentially danger Request.Form value was detected from the client (txtCodeExtract=" etc").
I have added ValidateRequest="False" to the main form however, when I now click the edit button the textbox wipes out all the text.
I have tried using the Server.HTMLEncode(txtCodeExtracts.Text); or Decode and HttpUtility.HTMLEncode or Decode but the textbox still clears.
This is a web app using Visual Studio 2008
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Nov 23, 2010
To prevent my application from crashing with the error "A potentially dangerous Request.Form value was detected...", I just turned page validation off. I want to revisit this and solve it correctly. Is there a good strategy for this? If people are entering '<' and '>', I think the only way to save their data is to encode it via Javacript. I have tried catching it in the code-behind, but it becomes too late. I am thinking of inheriting the textbox and auto encode/decode the input with client scripts. I also have to think of all the angle brackets that are already saved in my database.
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Mar 23, 2011
when I am trying to accept '<abc' as password in password field I am getting following error.
System.Web.HttpRequestValidationException: A potentially dangerous Request.Form value was detected from the client (ctl00$content$txtPass="<abc")
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Jun 2, 2010
I have one asp.net application, which has some problems while i am entering the special characters such as ": &#, " in the search box. If i enter this text in search box, i got the exception like this. A potentially dangerous Request.Form value was detected from the client (txtValue=": &#, ").
then i searched on the net, i got one general solution for this that to set the validaterequest to false. But no changes has been made on my application.
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Mar 7, 2011
I am Getting this error
A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtEmbed="<embed src='http://a...").
when i am opening a modalpopup extender on link button click and in code behind i am assigning the textbox
value="<embed src='http://auddia.com/player-viral.swf' height='20' width='200' allowscriptaccess='always' flashvars='volume=100&autostart=false&file=http://auddia.com/Audios/audioStream_1299222864888_19.flv&plugins=viral-1d'/>
and also i set the ValidateRequest="false" in the page directive's. and in code behind i also use HttpUtility.HtmlEncode . but again and again i am facing this error
"A potentially dangerous Request.Form value was detected from the client (ctl00$ContentPlaceHolder1$txtEmbed="<embed src='http://a...").".
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Jan 25, 2011
I am using FTB on my aspx page. is there any way I can have Toggle Full screen feature in FTB, is this feature availble in FTB? it is available on TinyMCE, but I don't want to switch to TinyMCE since I am already using FTB in most of the pages in my application.
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May 3, 2010
I know the < and > characters will cause this error, but what other characters/inputs will cause this error?
I'm testing for this error in the Global.asax, and reridrecting to an error page where I want to list all possible values which cause this error, so the user can go back to their page and get rid of them.
I've done some googling, but all I see so far are the < and > characters...surely there are more out there.
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Nov 13, 2011
I have this code , to redirect user when an error is detect on a page, and to notify the admin
vb Code:
Protected Sub Page_Error(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Error
REPORT IF ERROR DETECTED Dim a As New errorhandler   Â
a.reporterror(Page.Title.ToString & " "
& Request.Url.Host.ToString, Server.GetLastError.ToString)
End Sub
then under another button I have this try and catch , i wud like to show the user there is an error on the date input format.
vb Code:
TryÂ
aaa = dateTextBox.Text.Split("/")Â
bbb = aaa(2).Split(" ")
If (bbb.Length > 1) ThenÂ
a = aaa(0) + "/" + aaa(1) + "/20" + bbb(0) + " " + bbb(1).Substring(0, 2) + ":" + bbb(1).Substring(2, 2)Â Â Â
[Code] ....
But whenever an error is detect the user is redirected to another page (errorhandler).I was wondering if it's possible not to redirect the user if the error is of type InvalidCastException .
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Oct 12, 2010
I have an input type, so a text box which has a browse button next to it. When it is clicked, the file that is selected has it's full path placed into the text box.
<input type="file" runat="server" id="txtFilename" style="width:400px" />
Where is the event! Now that I have the path to the file in the textbox of the input type, I want to load each line of this file into a textbox that is able to handle multiline text. I don't want the file to be uploaded to the website. I just want to contents of the file read and placed in a textbox all with one click on the browse button.
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Mar 20, 2010
I have a page inside my folder ( say Admin Folder , Page1.aspx ) and I want to use the Master Page which is placed Outside the folder.
with Intellisense I am getting like this ~/Mymaster.master", but at run time it is throwing an error.
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Dec 23, 2010
Following is the structure of the pages in application
[Code]....
Suppose the user is on ..../paycheck.aspx which is the content page. But when ...../paycheck.aspx loads, "lnkDynamic" properties "Text and PostBackUrl" must be set. Which events should be handled .....
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Dec 7, 2010
I have a master page with a form on it. It's a people search form. When the user clicks on the search button it goes to the search results page that uses the same master page. With the code below I get the info off the master of the current page. Howdo I grab that info from the first page?
Here's the code:
Master page:
< FORM id=formEmpSearch method=post action=~/About/peopleSearch.aspx runat="server">
< asp:TextBox style="WIDTH: 153px; HEIGHT: 12px" id=txtSearchName onfocus="this.value=''" runat="server" CssClass="searchBox">
Master Code Behind page:
Imports System
Imports System.Web.UI
Imports System.Web.UI.WebControls
Partial Class mstrIntranet
Inherits System.Web.UI.MasterPage
Public Property mSearchName()
Get
Return txtSearchName.tex
End Get
Set(ByVal value)
txtSearchName.text = value
End Set
End Property
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
txtSearchName.Text = "People Search"
End Sub End Class
Search Results Code Behind page:
Partial Class PeopleSearch2
Inherits System.Web.UI.Page
Public SearchName As String
Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim mpTextbox As TextBox
mpTextbox = CType(Master.FindControl("txtSearchName"), TextBox)
SearchName = mpTextbox.Text
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Mar 26, 2010
[Update : I have inserted this post in "XML Web Services" section by mistake, so if you are a moderator or Admin, please shift it to "Security" section or any other relevant section]
I am working with WCF REST Service Application in .Net 4.0 and my service is hosted on II7 (Windows 7 Ultimate - 64 bit).My service and all other code is working completely fine.But when I use the '&' character in request url, it shows the following Error.I have already tried adding following section in my web.config as shown here on www.asp.net
<system.web>
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Jun 23, 2010
On a windows 2008 web server, I get the following error whenever posting a form containing html tags in textboxes:
A potentially dangerous Request.Form value was detected from the client (widget$txtText="
This is a common error and you fix it by either doing Page ValidateRequest = false or in the web.config with pages validaterequest = false. However, on this specific server, it completely ignores the validaterequest = false and throws this exception anyway. Has anyone seen this behavior before and know what else I can do to prevent this error? I've seen it in 2 web apps now on the same server, it's really weird.
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Feb 24, 2010
I have contact form on my website - but when somebody write html tags in this form or any other form he sees error website:
A potentially dangerous Request.Form value was detected in ASP.NET MVC
On this site:
http://www.coderjournal.com/2009/02/potentially-dangerous-requestform-detected-aspnet-mvc/
somebody writes that we should use [Code]....
[Code]....
[Code]....
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Aug 3, 2010
I have a textbox and a button, and I trying to give the user a search option in the master page. The onClick event of my button is fine, but the textbox.Text property is always empty. I googled a little and fine many articles about accessing the Master from the ContentHolder, but I believe its no my case...
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May 24, 2010
I am using Webhandler to upload images to the server. I want to send the folder name so on that folder the images will save. I am using this URI format and got the below error.
builder.Path = builder.Path.TrimEnd('/')
+ "/Services/FileReceiver.ashx?foldername=" +
folder;
this.Uri
= builder.Uri;
Also I added the following line in the web.config but still having the issue.
<httpRuntime requestValidationMode="2.0" />
A potentially dangerous Request.Path value was detected from the client (?). Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: A potentially dangerous Request.Path value was detected from the client (?).
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack
Trace:
[HttpException (0x80004005): A potentially dangerous Request.Path value was detected from the client (?).]
System.Web.HttpRequest.ValidateInputIfRequiredByConfig() +8884233
System.Web.ValidateRequestExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +35
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184
Version
Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.1
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Jun 4, 2010
I Have added a form to the master page, but when the page is rendered the name attribute is outputted; this attribute has now been depreciated.
Is there a way to override this form to remove the attribute when using the master page?
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Jul 19, 2012
How to create a master form , transaction page .....
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Oct 28, 2010
I am showing Custom Error in my page.if somehting happend wrong. but if the same error occured in my subview master page I am not able to show the Custom error page on Entire page its showing me that Error page under subview master page.I am attching the Screen shot.Can any body help me out how to show the Error page on entire page if something happend in any where submaster or other page.Here is the code that I am using in web config file to show custom Error page..
[CODE]...
Here I know the issue what's going on.This issue is occurring because i am using AJAX to partially load the contents of the tabs after the initial page load so the error is occurring AFTER my master page has been loaded.What I need to do is provide a javascript function to handle the error after the ajax call has returned and redirect to the error page.How to write this Javascript and where Do I need to write this?
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Nov 9, 2010
I have a function that loops through the control on my page to set attributes. This works fine, except that I only want the attributes to bet set on the controls on the content page, and not on the master page. Is it possible to check where the control resides? Or to only loop through controls on the content page?
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Mar 30, 2010
i have a master page with a tree view. i need to add a query string to the treeview and that value is on the page that uses the master page. all i want is for the treeview to navigate to the right page passing the clientID. so instead of this:
http://servername/ClientInformation/householdMember.aspx
i would get this:
http://servername/ClientInformation/householdMember.aspx?id=1
the value is in the txtClientID text box which is NOT on the master page. here is my master page and the page that uses the master page.master page tree view html code:
[Code]....
master page code behind:
[Code]....
other page html:
[Code]....
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Oct 12, 2010
I have a form that a user fills out and can input html or other text into a textarea. I have the validaterequest attribute set to false on the page. However, when I submit the form with any html characters it bombs saying that it detected the potentially dangerous request field and to make validaterequest=false. I've already done this so I'm not sure why it's not working. I've done this many times before and never had this problem. Anyone run into this before and if so, is there a fix? I don't want to update my web.config and apply it site wide.
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Jun 17, 2010
i have a master page and a child aspx page, coneected to each other. the master page has the form in it. Now the child page has checkboxes, whose value i would like to pass to another child page with same master page behind it. Can i change the action=abc.aspx and method=post?How can i send all the checkbox values (checkbox.text = abc@oke.com) to the next page? there are lots of these values that need to pass to nex tpage.
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