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• ASP.NET Ajax.BeginForm Posts Even If Validation Fails

  - by Acoustic

  I'm just overlooking something simple... but my form, which is an Ajax form, always submits even if the validation fails. I'm not using jQuery validation, just the standard .NET MVC validation. Each of the field failing get show the validation message and highlight the field, but the form just submits anyway. Is there an OnBegin script I can call to prevent the form from submitting if there are errors? Thanks for the help! Ajax.BeginForm("EditUserProfile", new AjaxOptions { HttpMethod = "Post", OnComplete = ToggleViews", UpdateTargetId ="userProfileContainer" })

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• How to Validate mac address & ipaddress in client side(using javascript) & server side(using c#)

  - by amexn

  My team doing a project related to network using Asp.net MVC(c#). I need to validate mac address & ipaddress in client side(using javascript) & server side(using c#). I didn't get a good solution for validating mac address & ip addresss. I searched google for finding a good user interface for validating mac address by giving colon after two number eg: "XX:XX:XX:XX:XX:XX" by using Masked Input.Please give reference/guidance for implementing this. Any jquery plugin for implementing Masked Input.

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• What useful things could a javaScript library provide?

  - by Delan Azabani

  In many of my answers I repeatedly urge users not to use JavaScript libraries like jQuery. I even wrote a blog post about the problems that using a library create. Some of these problems include holding back native standards development, keeping users comfortably using IE, and abstracting the developer from real JavaScript. If a site doesn't require IE as part of its audience, then how are libraries useful? The other popular browsers share extremely similar implementations and work well with things like JavaScript 1.6 arrays and AJAX. This is not a troll question, I'm truly wondering what they're useful for.

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• Configurationless WCF using Factories and JSONP

  - by FlySwat

  I'm using the WebServiceHostFactory in my WCF services to avoid having to create a crapton of binding configuration in web.config. However, I'd like to expose the services as XML/JSON and JSONP. Reading: http://jasonkelly.net/archive/2009/02/24/using-jquery-amp-jsonp-for-cross-domain-ajax-with-wcf-services.aspx It does not look like I can extend WCF to add JSONP without resorting to a mountain of custom binding config. So, for those who have done it, is it possible to have a restful WCF service that responds in XML/JSON/JSONP depending on the UriTemplate, without resorting to a ton of config wiring?

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• Telerik asp.net mvc datepicker "Invalid argument" in Internet Explorer (IE) 8

  - by GlobalCompe

  I am using Telerik asp.net mvc extensions. I have an issue that happens only in IE. I have IE 8. I don't have this issue in Firefox (3.6.3) or Chrome (4.1.249.1059) The problem happens when I want to pick a particular date by first clicking on the year on top and then the month. At that time, I get Invalid Argument error in jquery-1.4.2.min.js I am using VS2008 SP1 with ASP.NET MVC 2 RC2. I have tried this in a new asp.net mvc solution after "manually" modifiying it to become MVC 2 compliant and then doing all that telerik says on this page link text And finally using Datepicker in the Home/Index.aspx <%= Html.Telerik().DatePicker() .Name("DatePicker") % Has anybody else run into this issue?

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• Headers to set for AJAX calls in a custom webserver

  - by ErJab

  I'm writing a custom web server. When I enter the URL of my server in the browser, I get the sample text I write out to the socket in my browser correctly. This is the HTTP response that I write: HTTP/1.1 200 OK\r\n Server: My Server\r\n Date: Blah\r\n \r\n This is some sample text. This appears in my browser correctly when I connect directly to the server entering the URL. However, if I use Ajax (jQuery) to access the same URL and then set the innerHTML of an element on the HTML page, I do not get any data printed. Is there any other header I need to set on my web server so that the browser's XMLHttpRequest object detects the response?

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• mod_pagespeed is rewriting but not combining

  - by Marc vd M

  I have the following problem. I installed mod_pagespeed but i am not getting the results i want! It does rewrite my css and changes the to the cache url but its not combining the css files. I have seached the web and stackoverflow for it but did not find a solution. Here are the tags <link media="all" type="text/css" href="http://domain.com/assets/css/bootstrap.min.css.pagespeed.ce.Iz3TwZXylG.css" rel="stylesheet"> <link media="all" type="text/css" href="http://domain.com/assets/css/W.jquery-ui-1.8.24.custom.css.pagespeed.cf.9yjmvb9yjz.css" rel="stylesheet"> <link media="all" type="text/css" href="http://domain.com/assets/css/W.bootstrap.extend.css.pagespeed.cf.VelsS-YQRX.css" rel="stylesheet"> <link media="all" type="text/css" href="http://domain.com/assets/css/W.base.css.pagespeed.cf.QO1yNADs1p.css" rel="stylesheet"> <link media="all" type="text/css" href="http://domain.com/assets/css/W.style.css.pagespeed.cf.tRzIhRbblc.css" rel="stylesheet">

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• How to access Google Maps API v3 marker's DIV and it's pixel position?

  - by Ray Yun

  Instead of google maps api's default info window, I'm going to use other jquery tooltip plugin over marker. So I need to get marker's DIV and its pixel position. But couldn't get it because there are no id or class for certain marker. Only I can access map canvas div from marker object and undocumented pixelBounds object. How can I access marker's DIV? Where can I get DIV's pixel position? Can I convert lat-lng position to pixel values?

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• JavaScript and CSS files for ASP.NET MVC 2 EditorTemplate user controls

  - by Zack Peterson

  I'm using an EditorTemplate DateTime.ascx in my ASP.NET MVC 2 project. <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<DateTime>" %> <%: Html.TextBox(String.Empty, Model.ToString("M/dd/yyyy h:mm tt")) %> <script type="text/javascript"> $(function () { $('#<%: ViewData.TemplateInfo.GetFullHtmlFieldId(String.Empty) %>').AnyTime_picker({ format: "%c/%d/%Y %l:%i %p" }); }); </script> This uses the Any+Time™ JavaScript library for jQuery by Andrew M. Andrews III. I've added those library files (anytimec.js and anytimec.css) to the <head> section of my master page. Rather than include these JavaScript and Cascading Style Sheet files on every page of my web site, how can I instead include the .js and .css files only on pages that need them--pages that edit a DateTime type value?

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• Weird "406 not acceptable" error

  - by Horace Loeb

  When I try to hit this action via Javascript, I get a 406 Not Acceptable error: def show @annotation = Annotation.find_by_id(params[:id]) respond_to do |format| format.html { if @annotation.blank? redirect_to root_path else redirect_to inline_annotation_path(@annotation) end } format.js { if params[:format] == "raw" render :text => @annotation.body.to_s else render :text => @annotation.body.to_html end } end end This is from jQuery, but I'm doing the right beforeSend stuff: $.ajaxSetup({ beforeSend: function(xhr) { xhr.setRequestHeader("Accept", "text/javascript"); }, cache: false }); Here are my request headers: Host localhost:3000 User-Agent Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 Accept text/javascript Accept-Language en-us,en;q=0.5 Accept-Encoding gzip,deflate Accept-Charset ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive 300 Connection keep-alive X-Requested-With XMLHttpRequest Content-Type application/x-www-form-urlencoded

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• creating new usercontrols at runtime in ASP.NET MVC

  - by Paul Connolly

  Hi everyone, My situation is that the user is creating an entity on my site which contains the particlars of the driectors of that company, name address etc.. The Director form is a separate user control with the appropriate textboxes etc. At run time we don't know how many of these directors there will be so I need one to be able to use something like an "ADD DIRECTOR" or "DELETE DIRECTOR" button which will present or delete the another usercontrol to add the additional director. Currently I am trying to make this happen within a pane of the JQuery Accordion control. I have looked many places for how to do this but to no avail. Can anyone tell me where I might find some inforamation about how I can do this? All the best Paul

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• How to change the datasource on a YUI datagrid after creation

  - by Simon

  I am using the Yahoo DataTable for which the API is here. I am having difficulty changing the data once I have rendered the grid once. I am using jQuery to get data via AJAX, or from a client side data island and need to put this back into the grid. There is no setDataSource method in the DataTable API, and changing 'dataSource.liveData' does not update the grid. // does not work dataTable.dataSource.liveData = [ {name:"cat"}, {name:"dog"}, {name:"mouse"}; The example I am basing my code on is the basic LocalDataSource example. How can I update the data source without having to completely recreate the table. I do NOT want to use the YUI datasources that make Async calls. I need to know how I can do this 'manually'.

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• ASP.NET MVC2 RC : How to intercept or trigger client-side validation before ajax request?

  - by jacko

  I have a username textbox on a form, that has a few validation rules applied to it via the DataAnnotation attributes: [Required(ErrorMessage = "FTP login is required")] [StringLength(15, ErrorMessage = "Must be 15 characters or fewer")] [RegularExpression(@"[a-zA-Z0-9]*", ErrorMessage = "Alpha-numeric characters only")] public string FtpLogin { get; set; } I also have a button next to this text box, that fires off a jQuery ajax request that checks for the existence of the username as follows: <button onclick="check(this);return false;" id="FtpLoginCheck" name="FtpLoginCheck">Available?</button> I'm looking for a way of tieing the two together, so that the client-side validation is performed before the call to the "check(this)" in the onclick event. Edit: To be more clear, I need a way to inspect or trigger the client-side validation result of the textbox, when I click the unrelated button beside it. Edit: I now have the button JS checking for $("form").validate().invalid, but not displaying the usual validation messages. Almost there Any ideas?

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• Arguments of using WCF/OData as access layer instead of EF/L2S/nHibernate directly

  - by Carl Hörberg

  We develop mostly low traffic but highly specialized web applications. Normally we use L2S, EF or nHibernate as access layer and then throws Asp.Net MVC to it and in which for normal crud operations we query the ISession/DataContext directly but for more advanced functions/side effects we put it in a some kind of service layer. Now, i was think about publishing the data through OData (WCF Data Service) and query that from the controllers (or even from jQuery when the a good template engine shows up) and publish the service operations through a WCF service (or as custom methods on the WCF Data Service?). What advantages/disadvantages does this architecture poses? Do I gain something except higher complexity and latency? Better separations of concerns (or is it just a illusion)?

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• JSON on IE6 (IE7)

  - by David Thorisson

  Sorry for my inpatience but after weeks staying up late and just having put my web online, I just don't have any left energy to debug... I just can't Google how to implement JSON on IE6 & IE7... I'm using JSON.stringify(...) From what I understand JSON is not built in on IE6-7 and has to be dynamically added in in-line code... how do you do that? I already have jQuery - is it my correct understanding that their JSON engine relies on the browser native one? Then some comment on invalid JSON code that makes IE6-7 fail, but I thought it wasn't native in IE6-7? Anyone?

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• How to make HTML div follow its page position while scrolling?

  - by Ole Jak

  So I have a page like this you look at. On top I have some special informative div (here it contains something like links to | logout | about | faq | search ). I want on page scrolling (down) that div follow page like it stands above it. I want it to work in IE 5,6,7,8,9 and FF 1.5 and above. How to solve such problem? If your answer contains JS it shall be libs (like jQuery) independent. If html - No frames, Iframes

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• django + ExtJs - list of example implementations with source code

  - by Tom Tom

  Hi, I want to learn ExtJs http://www.extjs.com/ in combination with Django (I know Django already .. a bit ;-) and I'm on the search of examples I can learn from. I found already this post. Would be great if you post your links to examples here. Maybe we get a nice list of examplary implementations that help users to start with django + ExtJs. Ext js Poll Tutorial Ext js vs. Jquery "Show how you can use extjs to display a table and how to use jqgrid 3.2 to get the same as in extjs. Incluses extjs and jqgird libraries. I have had to patch jqgrid adding" RESTful Web apps with Django, Piston and Ext JS Convert your forms.Form and forms.ModelForm to extjs and handles the form submission like any django form.

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• Rails remove parent HTML tag

  - by gshankar

  It's pretty easy to sanitize HTML and strip ALL instances of a HTML tag using Rails helpers... But how do you just remove ONE tag? In this case, I'm using a WYSIWYG editor that insists on wrapping all my text in a <p> tag. I want to remove this parent tag without stripping out any other <p> tags within the content of the text. I know I could do this in JQuery really easily but I feel like this should be done server-side in my controller before I save the text. Is there a way to do this?

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• How to find (in javascript) the current "scroll" offset in mobile safari / iphone

  - by mintywalker

  I'd like to know the x/y offset of the how far the user has "scrolled" within the viewport in mobile safari on the iphone. Put another way, if I (through javascript) reloaded the current page, I'd like to find the values I'd need to pass into window.scrollTo(...) in order to reposition the document/viewport as it is currently. window.pageXOffset always reports 0 jquery's $('body').scrollTop() always reports 0 events have a pageX, but this won't account for the scrolling of the page that happens after you release your finger if your gesture was to "flick" the page up/down. Namely, it'll give me a point when the finger leaves the screen, but that doesn't always match where the page will be after it's finished scrolling. Any pointers?

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• Change an input's HTML5 placeholder color with CSS

  - by David Murdoch

  Chrome supports the placeholder attribute on input[type=text] elements (others probably do too). But the following CSS doesn't do diddly squat: <style> input[placeholder], [placeholder], *[placeholder] { color:red !important; } </style> <input type="text" placeholder="Value" /> "Value" will still be grey (er, gray. whatever) instead of red. Is there are way to change the color of the placeholder text? p.s. I'm already using the jQuery placeholder plugin for the browsers that don't support the placeholder attribute natively.

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• Using Multiple TinyMCE Packages in a web site asp.net

  - by ProgNet

  Hi all, I got a detailed answer to my previous question about TinyMCE editor (link text) The answer raised a new question . In case I want to use more then one TinyMCE package in my ASP.Net Project For example to use the Development Package and the .Net Package(Or use the Development Package , the .Net Package and the JQuery Package ). what steps do I need to take to include them in my solution? In TinyMCE web site Installation page ( wiki.moxiecode.com/index.php/TinyMCE:Installation ) they wrote : "You should extract TinyMCE in your wwwroot or site domain root folder." But the problem is all the different packages unzip to the same folder name that is tinymce. There can't be more then one folder with the tinymce name in the site domain root folder. (files will be overwritten) Of course I can rename them for example to TinyMCEDev and TinyMceDotNet ,but what about code redundancy issues etc ? Thanks

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• What is better: CSS hacks or browser detection?

  - by Darryl Hein

  Commonly when I look around the Internet, I find that people are generally using CSS hacks to make their website look the same in all browsers. Personally, I have found this to be quite time consuming to find all of these hacks and test them; each change you make you have to test in 4+ browsers to make sure it didn't break anything else. About a year ago, I looked around the Internet for what other major sites are using (Yahoo, Google, BBC, etc) and found that most of them are doing some form of browser detection (JS, HTML if statements, server based). I have started doing this as well. On almost all of the sites I have worked on recently, I use jQuery, so I use the built in browser detection. Is there a reason you use or don't use either of these?

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• ASP.NET MVC Ajax Form: Is enctype correct? Why doesn't file get uploaded?

  - by Fabio Milheiro

  In the case that the user doesn't have Javascript activated, in order to draw a form, I begin this way: <% using (Html.BeginForm("Create", "Language", FormMethod.Post, new {enctype="multipart/form-data"})) { %> If the user has Javascript activated, the following code is used: <% using (Ajax.BeginForm("Create", "Language", new AjaxOptions { UpdateTargetId = "CommonArea" }, new { enctype = "multipart/form-data" })) { %> The problem is this: In the first case, I can get the file uploaded using the following instruction in the business layer: // Get the uploaded file HttpPostedFile Flag = HttpContext.Current.Request.Files["Flag"]; In the second case, this instruction doesn't work. How do I know upload that file using the Ajax.BeginForm? Is the code right? Can anyone more experience advise about using jQuery plug-in to upload file before the form submission? Thank you

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• JavaScript: catching URI change

  - by ptrn

  I have a site where I'm using hash based parameters, eg. http://url.of.site/#param1=123 What I want When the user manually changes the URI to eg. http://url.of.site/#param1=789 When the user enters this URI, the event is caught by the JavaScript, and the appropriate functions are called. Basically, what I'm wondering about is; is there an event listener for this? Or would I have to periodically check the URI to see if it has been changed? I'm already using the current jQuery API, if that helps. _L

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• use jsonp to get xml cross domain

  - by lmkk

  I am trying to read xml into a webpage from another server, and I assume that my problem is Same-Origin Policy, and therefore a cross domain problem. I have a bit of googling and it seems that jsonp is the way forward. Based on some examples I found here on stackoverflow and another sites, this is what I have, and it does not "hit" the server with the xml. I can view the xml in a browser. $(document).ready(function(){ $.ajax({ type: 'GET', dataType: 'jsonp', url: 'http://192.168.0.106:8111/getconfiguration?', success: function (xml) { //do stuff with received xml }}); Any suggestions? please keep in mind that I am a newbie with regards to JS / JQuery ;o)

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