MVC :: Prevent Custom HtmlHelper's Html Being Encoded?
Jun 12, 2010
When you render one of the "built in" html helpers (say "TextBoxFor") with ":" (so it's encoded) it renders fine.However if I render the following (a custom file input helper) with ":", the markup are displayed.I understand why. Just don't know how to prevent this (no, I want to stay with ":" and not use "=")(I looked at the source code for the built in ones, but can't see what I'm missing: ttp://aspnet.codeplex.com/SourceControl/changeset/view/23011#288010 )
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Aug 13, 2010
I cannot seem to get over this problem. Im sure it is just a simple newbie question but I just cannot find the right answer on my own.
Im using MVC 2 and ASP. NET 4.0 to biuld simple CMS. Im storing encoded HTML in XML file which then i am passing to front page controller for display.
I understand that before inserting HTML from XML into the page, it should be decoded using HttpUtility.Decode() function.
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I expected that this sould result in inserting decoded HTML into my index.aspx page. Then browser could render my decoded content for example in bold face.
What happens is quite awkward. In page source I have encoded HTML but it renders HTML with tags. For example I see "<strong> Lorem ipsum </stong>", instead of Lorem Ipsum.
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Mar 31, 2011
i am just having a play with HtmlHelpers in MVC, very useful stuff and now i am trying to create one for dropdowns based on passing in a model ( any ) what the property is for the value and same for text.
so i have something like this:
[code]....
thats it
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Mar 9, 2011
I have created a custom html helper as follow:
[Code]....
In my View, I am using it like this:
[Code]....
However, for some reason nothing gets rendered!
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Feb 16, 2010
What are the advantages of extending HtmlHelper instead of creating a Custom Class.
f.e. <%= Html.Table(data) %> vs <%= CustomClass.Table(data) %>
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Nov 18, 2010
In the new ReSharper 5.0 there is some MVC specific features for highlighting View and Controllers in views when you type them as strings.
So with ReSharper the string below called "ViewName" will get highlighted and clickable for navigation.
Html.RenderPartial("ViewName", model);
My question is if its possible to write custom patterns for custom extension methods. In my case i have a extension method called:
Html.RenderPartialIf(myCondition, "ViewName", model);
But when I do this ReSharper wont find my view. So can it be done?
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Mar 18, 2011
I have a view that is strongly typed and its model is of type LogOnModel. That LogOnModel has anotated properties like this one:
[Required(ErrorMessage = "Please enter your password")]
[DataType(DataType.Password)]
[Display(Name = "Password", Description = "Your secreet password")]
public string Password { get; set; }
All of them has Display anotation with Display.Descripion property set. I want to create HtmlHelper extension method that will output <span> containg the value of Display.Description property. So for example if I called my extension method DescriptionFor than this code:
<%: Html.DescriptionFor(m => m.Password) %>
should produce following html: <span>Your secreet password</span>
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Jan 5, 2011
We are sending an HTML encoded string in the Query string. It was working fine on IIS 6 (windows 2003). We have recently moved the website to Windows 2008 (IIS 7.x). Since the move any Query String that contains "+" sign i.e., "%2b" gives error on the server "404 -File or directory not found."
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Jan 9, 2010
I would like to extend the HtmlHelper by using metadata (similar to DataAnnotaions metadata). Specifically I want to be able to add a 'Title' attribute to html controls that will then appear as a tooltip on the control. I would like to keep the tooltip text with my model, for example by adding 'Tiltle' metadata to the model as follows:
[DisplayName("User Id")]
[Title("Enter your 10 digit user id")]
property UserId { get; set; }
So the questions are:
1. How do I add metadata (such as 'Title') to my model?
2. How do I access this metadata in my HtmlHelper extension method?
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Mar 5, 2010
Why custom Gridview control not render html properlies under <Columns> properly in Visual Studio 2005?
For example:
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Sep 2, 2010
I have several text boxes in an ASP.NET Web Form. I want to ensure that users are not entering HTML into those text boxes. However, I'm not sure how to prevent HTML from being entered. Because of this, I decided that I want to only allow alphanumeric characters, spaces, exclamation point, sharp sign, dollar signs, percentage signs, carets, stars, and left and right parenthesis. I'm omitting the ampersand because I do not want them entering something like "<script&rt;..."
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Feb 2, 2010
I would like to render a simple list of - Controls.My ASP.NET Code-behind looks like:
RadioButtonList list = new RadioButtonList();
list.ID = rbl.name;
list.CssClass = rbl.cssClass;
[code]...
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Feb 10, 2010
It's a little unclear for me on when to use a custom helper method and when to use RenderAction and also when to simply use ViewData instead. Some of their functions overlap slightly.
For example, if I were to create a Category navigation bar, would I create a new helper method and place that in some partial view? I had initially though of doing this, but I read on some blog to use RenderAction instead.
Assume the list of categories is coming from some data source.
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Apr 13, 2010
I usually use HttpUtility.HtmlEncode and HttpUtility.HtmlDecode for this but my fear is that someone injects some nasty javascript, I encode it before committing it to the database so it doesn't harm me but the next person who pulls up the page, gets the javascript because I decode the HTML before rendering the page.
What's the best way to handle this in public facing websites?
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Dec 8, 2010
I am using in C# HTML EDITOR Control MS Ajax.
I would like to know if is possible FORCE the control HTML EDITOR to DO NOT ACCEPT text from PASTE (short cut ctrl+v or menu command).
My aim is to prevent css inline code to be added to the text.
I would allow user to add text if pasted just with HTML EDITOR Button PASTE PLAIN TEXT.
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Jan 30, 2010
I have a GridView bound to a DataTable that I construct. Most columns in the table contain the raw HTML for a hypelinklink, and I would like that HTML to render as a link in the browser, but the GridView is automatically encoding the HTML, so it renders as markup.
How can I avoid this without explicitly adding HyperLink, or any other, columns?
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Sep 22, 2010
I'm using the ajaxcontroltoolkit htmleditor to create blog posts for my website. The editor works fine when entering a new article. When I click the Bold button, the text appears bold. When I hit enter, the editor creates a new line, etc. However, I also use the htmleditor when I want to edit a preexisting article. The problem I'm receiving, is when I bring a preexisting article into the editor, it displays a mess of html tags rather than the clean, formatted text.
For example, if I type the following into the editor:
...when I go to edit it, it shall appear as:
[Code]....
Is there any way to force the editor to display this text properly when editting rather than showing the html tags?
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Oct 27, 2010
It's great that Razor HTML encodes by default. However, many times I have HTML in a database and want to display it literally on a page. In WebForms 4, we can use <%= %> and <%: %> to choose between encoding options. Raven's syntax is currently @(new HtmlString(Model.Greeting)).
add a shorter syntax to Razor. Something like @=Model.Greeting or @@Model.Greeting, or something else.
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Nov 24, 2010
Another beginner question, I'm afraid... I was wondering if someone could tell me the easiest and most efficient way of getting the fully qualified domain name (e.g. www.google.com) from a UrlEncoded string in ASP.Net (C#).For example: http%3A%2F%2Fwww.google.com%2Fsearch%3Fq%3Dsome%20things%20i%20searched%20forWould give me: www.google.com(Or basically anything where I can check the domain to make sure it's correct.)I'm guessing the first step might be to UrlDecode, but since this is how I'm getting the string, I thought I'd mention it incase it's easier Encoded.
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Dec 22, 2010
How determine if a string has been encoded programmatically in C#?
Lets for example string:
<p>test</p>
I would like have my logic understand that this value it has been encoded..
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Feb 17, 2011
I am curious to know the reasons why the HTTP request encodes(URLEncoded) all the parameters before sending it across the network in POST request.
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Nov 5, 2010
I'm having a problem using a xml file as datasource for my gridview.
I create this xml file myself using XMLTextWriter class, the file is created parsing an existing excel file so I don't have control over the data retrieved from the excel file. Using XMLTextWriter does encode the special characters correctly, for example: <Enter> instead of <Enter>. The problem is when I try to open this created xml for editing, I use a GridView and bind all the data but special character data is not show in the row.
Excel Data: Enter “E” or “e” and press <Enter>
XML Data: Enter “E” or “e” and press <Enter>
Data in GridView: Enter “E” or “e” and press
Is there a way to force the the GridView to decode the xml attributes correctly?
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Feb 9, 2011
I have a URL which is in a ASP.NET repeater control:[URL]This gets encoded to & when it gets rendered to the browser.We have tried decoding it using server side tags in the repeater, that did not work.How can i stop this from happening?[URL]
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Oct 6, 2010
I am using a third party Web Service. I am passing a string to a function in that service, that string, which i am reading from a UTF-8 text file. The problem it that the string contain some non ASCII characters.
Now if i save that text file to ANSI format, read it in a string and pass that string to Service then it works smoothly but with UTF-8 encoded string the service throw exception [Code]....
NON ASCII characters UTF-8 encoding SOAP
I am using ASP.NET.
Third party sevice is in java. I also tried it by making a web service in .net, but there was issue there too.
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Jan 4, 2010
I have Russian blog built with BlogEngine.NET 1.5.
I use Russian words in links encoded with URLEncode, so links are human-readable in most browsers - FF, Chrome, Opera (except for IE, but this is not the real problem with this browser). This idea is not mine, I borrowed it from Wikipedia - it uses encoded URLs on localized sites.
The real problem is that when I am trying to add comment in IE8 it fails (and only on production machine, development environment works fine).
Using Fiddler I found out that IE tries to send AJAX callback using WebForm_DoCallback to wrong address - it seems that it decodes URL, gets wrong characters and asks page with that wrong address from server and (of course) receives 404.
Here is how incorrect request from IE looks in Fiddler:
POST /ru/post/�������������-�����.aspx HTTP/1.1
Here is how FF makes same request and gets correct response:
POST /ru/post/%D0%92%D1%81%D1%82%D1%83%D0%BF%D0%B8%D1%82%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D0%B5-%D1%81%D0%BB%D0%BE%D0%B2%D0%BE.aspx HTTP/1.1
I upgraded solution from default ASP.NET 2.0 for BE to ASP.NET 3.5 but this changed nothing. I made some minor changes in BE to allow properly encoded UTF links - by default it wipes out percent symbol from links.
what wrong is with IE behavior here and how to fix it? Why development environment under ASP.NET Development works different from production machine under IIS6? Why IE does not decode link in address bar (like other browsers) but does it when making request?
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