Web Forms :: How To Restrict User To Entering HTML Tags In Textbox

Aug 25, 2009

If the user submited the form with some html content in the textbox; I need to stop him with some handy message like "Html Tags are not allowed..."Can we do this with any regular expression or javascript...Please any one can suggest a better solution.


Web Forms :: Html Tags In Textbox?

Sep 2, 2009

i am having backend form to upload details to sqlserver.i am textbox to paste profile. company profile sometime contains bullets. so when i put <li></li> inside textbox and save it , i am getting error like potential A potentially dangerous Request.Form value was detected from the client can u please suggest me what to do.

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Web Forms :: How To Disallow HTML Tags In Textbox

Dec 14, 2009

I have problems with user typing html tags in som inputsfields in my webforms, and it has no relevans, but the eventvalidation throws an exception when the form is submittet! Can i validate the inputfields for html tags to avoid this exception, and instead tell the client that the content isn't valid?

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Web Forms :: Allow HTML Tags In TextBox Control?

Jul 23, 2010

I need to be able to insert HTML tags in some TextBox controls in a webpage. I know I can avoid the exceptions of type HttpRequestValidationException by changing the ValidateRequest property of the Page directive to false, as in


But that leaves all TextBoxes on the page open for HTML insertion, which I don't want. I need to be able to insert HTML in only some TextBoxes, not in all of them.Is there a way to accomplish that?

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Restricting User While Entering In Textbox?

Apr 16, 2009

I am working on registration page. I am accepting some general inputs from user. Like First Name, Middle Name, Last Name etc.

Now what I want to do is:

1. When user enters in textbox then while typing; first letter should be automatically come up as capital letter & next as small case letters. E.g. If I am typing my first name then while typing it should be Sanjay & not as sanjay or sAnjay.

2. While typing in textbox user should not be allowed to enter white space in between the words like Sa jay this should not be happen. If user types like this I want to give an alert that something like please do not use space in between name.

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Web Forms :: How To Copy Only Text From One Textbox To Another Without Html Tags

Mar 2, 2011

i've 2 textboxes(t1,t2)
t1.text = <p>some data</p>
if i click a button i want to display only "some data" in t2 without <p>,</p> means, I want to display only text without any html tags, how?

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Stop User From Entering Text In A Textbox?

Sep 17, 2010

I want to stop user from entering stuff in a textbox. But if I use Readonly then for some reason I can't get the information to the database.

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Web Forms :: How To Check Whether The Html Tags Are Well Formed Inside The Textbox

Sep 29, 2009

How to check whether the html tags are well formed inside the textbox? I'm using vb.net 2.0 .For example , if i enter this sentence in textbox "Hello <b>swapna<b>" I want to check whether the opening of html tag also contain closing tags..

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AJAX :: Validate IP Address Which Is Entering Into Textbox By The User

Jul 6, 2010

I need to validate IP Address which is entering into textbox by the user....

I validated some other controls using ajax only, so only expecting the same for IP Address also...

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Get Html Tags From Textbox In C#

Sep 2, 2010

I have a text area in my ASP.NET web application that is used to enter html code. Now there is also an button control, which upon clicking should retrieve just the text placed between certain html tags in the text box. For example:

1) User types html code including tags etc. and clicks the OK button
2) In my code the text from the text area is retrieved and only the part between a <p></p> tag should be saved to a string object.

I can obviously get the text from the text area and attach it to a string object but I am not able to work out how to just get text within a certain html tag like <p></p>

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Security :: How To Restrict Users Who Are Entering The Sites Without Login

Aug 9, 2010

I have a login form and users have to enter their username and password for entering the sites ..

Also now its possible for users to enter the sites without login .. they can select the options in the menu and access them ... But i want to restrict the users ..only allow them to access the menu componets after login ... If they tries to access the contents a text have to display ask them to login

how can i do that... i am using vb.net as my language in the page

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Remove Style Tags,css,scripts And Html Tags From Html To Plain Text?

Mar 8, 2011

I want regex operation for removing style tags,css,scripts and html tags from html to plain text in asp.net c#...

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Localization :: Restrict User To Type 'Arabic' Text In TextBox Using C#?

Dec 4, 2010

how to type the user in textbox in arabic text without changing the language in their pc?! using c# .net

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Security :: Restrict User To Enter Special Characters In Textbox?

Mar 16, 2010

I gave an option to user to change password but the text boxes are taking - / @ (special characters). How to check at runtime that user may not enter these characters?

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Html Tags In User Control?

Jan 4, 2011

Just wondering what the best approach is to labelling ID's (thats html id's) in .net.

For instance I may have a user control that is embedded in a page more than once. If I have a standard html div in the control with id="my-user-control", then it will duplicated when the page is built.

So what is the best approach for styling your html within user controls, master pages and .net in general?

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Web Forms :: Just Removing HTML Tags But Not Custom Tags?

Sep 28, 2009

In my web page I have an textarea control to enter some input from users.I want to remove all html tags from this input (for security and design issues).
It is ok like this -> Regex.Replace(inputString, @"<a(.|
)*?>", string.Empty);

However, I allow users to insert only custom tags which i specifies such as

<clickHere> </clickHere>

so, for example user types <clickHere> forums.asp.net </clickHere> I will replace it with
<a href="forums.asp.net"> click here </a>

also I can do it with regular expressions.But, if user types <a href="forums.asp.net"> click here </a> I want to remove all html tags because they are only allowed to use custom tags.The problem is when i try to remove html tags it also removes my custom tags, how can I exclude custom tags not to be removed?

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AJAX :: Getting Html Tags Output Instead Of Executed Html Tags

Mar 27, 2010

i'm doing ajax website using PostWebRequest() function, when i call any .aspx page to the target html element the output is coming fine in IE but in FF(FireFox) is coming in html format(html tags) IE output : [URL] FF output : [URL]

javascript functions :
function PostWebRequest(postPage, HTMLTarget, parameter) {
displayElement = $get(HTMLTarget);
displayElement.innerHTML = "<div style='text-align:center;'><br /><br /><br /><br /><br /><img src='images/ajax-loader.gif' algin='center' /></div>";
var wRequest = new Sys.Net.WebRequest();
var body = parameter;
wRequest.get_headers()["Content-Length"] = body.length;
function onWebRequestCompleted(executor, eventArgs) {
if (executor.get_responseAvailable()) {
if (document.all) {
displayElement.innerHTML = executor.get_responseData();
else {
displayElement.textContent = executor.get_responseData();
else {
if (executor.get_timeOut()) {
alert("Timed Out");
else {
if (executor.get_aborted())

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MVC :: Ignore A Html Tags In User Text Area

Nov 1, 2009

I'm building my very first mvc project. I'm having this problem. i have a text area for users to write same text, more or less in a twiter style site. how ever in this text area if the user write same html tags (like <p> , br/> and so on I'm getting this Error: A potentially dangerous Request.Form value was detected from the client (status="...efor tags <br><br/> <p>"). I would like to have same valuator that just ignore any html tags that where written by user

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Web Forms :: Entering A Hexadecimal Value In A Textbox?

Sep 9, 2009

Our customer needs to add a value like 'NAK' to the database. This is a hexadecimal value (think it's either 15 or 21). How can the user enter this in the textfield? Or, what do I have to do to allow this to be entered?

If he enters '21', it just saves '21' to the database because he once asked for backslashes in this particular field.

Then, once I know how to enter the hexa value, can I expect any trouble in saving this to the database?

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Web Forms :: Cause Postback When ENTERING A Textbox?

Jan 11, 2011

Basically what I would like to be able to click in a textbox and it cause a postback. Not TextChanged, but when the TextBox gains focus. Any way to do this?

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Web Forms :: Entering Time In TextBox?

Feb 28, 2011

I want to display time in textbox using a format HH:mm from the database as well as allow user to enter or modify time in the same format.

I have done the displaying of time using dt.ToShortTimeString();

How can I validate the user entered time or modified time. I need it to be a 24 hour format.

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Force The TooTip For A TextBox When Entering Some Text In Textbox?

Jun 22, 2010

i Want To Set a Tooltip For a TextBox in asp.net when entering Some Text in that textbox.

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Web Forms :: Textbox Entering Results In Error?

Feb 13, 2011

I never knew that there was something like when you enter <xx> in the textbox it gives the error, so my question is how can i avoid this kind of problem? and how can i avoid this error? I cant say to ppl do not enter this in textbox who know what ppl can do, so it is better to make sure you wont get error cuz of this.

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Web Forms :: How To Call A Private Function Entering The Textbox

Jul 29, 2010

I want to call a private function entering the textbox (enter key). How to fix it with vb.net?

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Web Forms :: Entering Array Of TextBox / How To Insert Into The Database

Aug 5, 2010

I ve design a page that has nine text box name txtSubject1 to txtSubject9 with the visibile properties to be false.I now have a method called Save1, Save2 to Save9 depending on the no of subject selected from the dropdown.But i think that is not professional bellow is a sample of how i did't and i believe the textbox can n number of an array that can be selected from the drop down. i need someone to put me through how to insert this into the database out side the fake method i ve used.


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Forms Data Controls :: Can Add New Records In Gridview By Entering Value In Textbox In Runtime

Mar 11, 2010

can i add new records in gridview by entering value in textbox in runtime?suppose a value is entered in textbox and concerned record is displayed in gridview again if i want to add a new record in gridview along with the old record how can i add?

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Web Forms :: Entering Comma Separated Value In To The TextBox And Saving It To Database And Retriving?

Dec 15, 2009

I have a textbox where user can add comma separted value. I would like to add it to the database.that i can do it without any problem. After that i would like to get the value retrieve from the database and then display it to the user in grid or something like that.

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Web Forms :: Click ENTER After Entering Value In TextBox To Make Submit Button Work

Mar 6, 2009

After user enters value in any text box on the page, he needs to hit ENTER - otherwise button Click event does not fire.

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Web Forms :: Prevent Users From Entering Char In Textbox After Clicking Submit Button?

Nov 14, 2010

i want when user click on submit button then a div layer will be generated over the textbox whose height and width will be just the same as textbox and in this way textbox will be blocked for entering something. i want to do it by javascript. in this scenario other textbox will not be blocked.

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Web Forms :: How To Restrict Typing Into A Textbox

Jan 20, 2011

I've got textboxes for dates, and they are hooked up to the jquery datepicker. I would like to disallow actual typing into the text boxes, forcing the datepicker UI to be the *only* method of populating the textbox. I tried setting the textbox to readonly, but that ended up not passing the on-screen-displayed datepicker-selected date back to the server, and hence not saved.

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Web Forms :: Restrict Dynamic Textbox To Set Of Values Only?

Jul 31, 2010

I have generated dynamic text boxes for each table row there are 6 text boxes

1. For the first two text boxes the values given by the user should be in valid range(this range comes from the database).User is allowed to enter the value within that specified values only. How to achieve this? I have taken drop down lists but if the values in drop down increases selecting required value is tedious to the user.. (if it is having 1000 values) and while I am retrieving the values I have written query such as Null values ignored. But I am getting NULL values in the dropdown here is the code what I have written,

(Database is Oracle)
Not (OledbCmd.Equals(String.Empty)
Or OledbCmd
OledbDA.SelectCommand = OledbCmd
OledbDA.Fill(ds, "textDB")
dt = ds.Tables("testDb") If
(dt.Rows.Count > 0) Then
ddlist.DataSource = dt If UCase(s) =
ddlist.DataValueField = "num"
ElseIf UCase(s) =
ddlist.DataValueField ="name"
End If
ddlist.SelectedIndex = 0 Else
End If

2. In the rows generated when user presses functional key F3 then the values of the above row(previous row) have to be copied in present row. similarly for F4 column copying. This I achieved through the Java script. But I have many forms requirement is same. where as text boxes id differ. how can I generalize the One function to work for all forms. I wrote as like this.

document.getElementById("No"+ cnt).value = document.getElementById("No" + (cnt-1)).value;
document.getElementById("Name"+cnt).value = document.getElementById("Name" + (cnt-1)).value;

For all the 6 text boxes.where as for column copying I wrote as

document.getElementById(id + cnt).value = document.getElementById(id + (cnt-1)).value;

here id is the text box id Which I am passing.

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How To Validate For Not Entering Zero In Textbox

Dec 9, 2008

users should not be able to allow zero(0) in textbox.(but can enter 10,100 etc.,)

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Web Forms :: Adding Details Automatically After Entering User Name And Password

Apr 25, 2010

i was wondering if anyone could help me with a problem i have. im not sure how to go about this exactly i have a web site for a group of ramblers

i have a master/details page which shows walks planned for the future and they can click "details" for the full details

but what i want to incorporate into it is that when they are looking at the full details there is an option to add them to it as attending by entering a user name and password (saved in a table in the database) and if entered correctly their username will be added to it as attending.

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Masked Textbox For Entering Passwords?

Oct 30, 2009

What is the best and simple solution for masked texbox edit for entering passwords?

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C# - Cutting HTML String Into Separate Lines Without Breaking HTML Tags

Oct 24, 2010

I have to break a HTML content string in to multiple lines. And each line should have some fixed characters, 50 or 60 Also I don't want to break the word..or html tags...

ex : <p>Email: <a href="mailto:someone@gmail.com">someone@gmail.com</a></p>
<p><em>"Text goes <font color=red>Hello world</font> Text goes here and Text goes here Text goes here 1976."</em> </p>

How can I acheive this in C#?

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Restricting Number Of Characters Entering Into Textbox

Feb 11, 2009

In my webpage I want restrict the number of charaters (some max. limit) that can be entering

into the text box

is any way possible in NET 2.0 or NET 3.5

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How To Display Tooltip For TextBox While Entering The Text

Jun 21, 2010

How To Display Tooltip for TextBox While Entering the Text in that in asp.net .

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Checking After Entering The Text In The Textbox And Pressing The Enter Key?

Apr 7, 2010

in my asp.net C# web page I have a text box and a button. the code in the button click event is


How can I make this checking after entering the text in the textbox and pressing theenter key

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C# - How To Limit Users From Entering English Characters In A Textbox

Jan 17, 2010

Do I need to use regex to ensure that the user has typed in English? All characters are valid except non English characters.

How do I validate this textbox?

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Remove All Html Tags And Javascript Tags Using Regex In Javascript

Jan 31, 2011

How can I remove all html tags and script tags? consider also short tags like unclosed tags

<body> aaa<b>bbb</body>

This should return aaa bbb.

notice that all the contents inside the script tag is ignored.

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