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• overflow hidden not working on touch device

  - by Jesper Ong

  I have a problem with overflow:hidden on a touch device. Basically I have my html and body on overflow:hidden. With a contact form outside(bottom) of the window. On clicking a button this form will animate in. This is so far working great on desktop browsers. But on touch devices, I seem to be able to scroll down and view the form. I can't seem to find solutions after much googling. Is there anyway to force overflow:hidden on touch devices? Any help much appreciated!

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• if cookies are disabled, does asp.net store the cookie as a session cookie instead or not?

  - by Erx_VB.NExT.Coder

  basically, if cookeis are disabled on the client, im wondering if this... dim newCookie = New HttpCookie("cookieName", "cookieValue") newCookie.Expires = DateTime.Now.AddDays(1) response.cookies.add(newCookie) notice i set a date, so it should be stored on disk, if cookies are disabled does asp.net automatically store this cookie as a session cookie (which is a cookie that lasts in browser memory until the user closes the browser, if i am not mistaken).... OR does asp.net not add the cookie at all (anywhere) in which case i would have to re-add the cookie to the collection without the date (which stores as a session cookie)... of course, this would require me doing the addition of a cookie twice... perhaps the second time unnecessarily if it is being stored in browsers memory anyway... im just trying not to store it twice as it's just bad code!! any ideas if i need to write another line or not? (which would be)... response.cookies.add(New HttpCookie("cookieName", "cookieValue") ' session cookie in client browser memory thanks guys

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• Class/Model Level Validation (as opposed to Property Level)? (ASP.NET MVC 2.0)

  - by Erx_VB.NExT.Coder

  Basically, what the title says. I have several properties that combine together to really make one logical answer, and i would like to run a server-side validation code (that i write) which take these multiple fields into account and hook up to only one validation output/error message that users see on the webpage. I looked at scott guthries method of extending an attribute and using it in yoru dataannotations declarations, but, as i can see, there is no way to declare a dataannotations-style attribute on multiple properties, and you can only place the declarations (such as [Email], [Range], [Required]) over one property :(. i have looked at the PropertiesMustMatchAttribute in the default mvc 2.0 project that appears when you start a new project, this example is as useful as using a pair of pins to check your motor oil - useless! i have tried this method, however, creating a class level attribute, and have no idea how to display the error from this in my aspx page. i have tried html.ValidationMessage("ClassNameWhereAttributeIsAdded") and a variety of other thing, and it has not worked. and i should mention, there is NOT ONE blog post on doing validation at this level - despite this being a common need in any project or business logic scenario! can anyone help me in having my message displayed in my aspx page, and also if possible a proper document or reference explaining validation at this level?

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• Why is my logic not working correctly for SPOJ TOPOSORT?

  - by Kavish Dwivedi

  The given problem is http://www.spoj.com/problems/TOPOSORT/ The output format is particularly important as : Print "Sandro fails." if Sandro cannot complete all his duties on the list. If there is a solution print the correct ordering, the jobs to be done separated by a whitespace. If there are multiple solutions print the one, whose first number is smallest, if there are still multiple solutions, print the one whose second number is smallest, and so on. What I am doing is simply doing dfs by reversing the edges i.e if job A finishes before job B, there is a directed edge from B to A . I am maintaining the order by sorting the adjacency list I created and storing the nodes which don't have any constraints separately so as to print them later in correct order . There are two flag arrays used , one for marking discovered node and one for marking the node whose all neighbors have been explored. Now my solution is http://www.ideone.com/QCUmKY (the important function is the visit funtion ) and its giving WA after running correct for 10 cases so its really hard to figure out where am I doing it wrong since it runs for all of the test cases which I have done by hand.

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• Connecting repeatable and non-repeatble backgrounds without a seam

  - by Stiggler

  I have a 700x300 background repeating seamlessly inside of the main content-div. Now I'd like to attach a div at the bottom of the content-div, containing a different background image that isn't repeatable, connecting seamlessly with the repeatable background above it. Essentially, the non-repeatable image will look like the end piece of the repeatable image. Due to the nature of the pattern, unless the full 300px height of the background image is visible in the last repeat of the content-div's backround, the background in the div below won't seamlessly connect. Basically, I need the content div's height to be a multiple of 300px under all circumstances. What's a good approach to this sort of problem? I've tried resizing the content-div on loading the page, but this only works as long as the content div doesn't contain any resizing, dynamic content, which is not my case: function adjustContentHeight() { // Setting content div's height to nearest upper multiple of column backgrounds height, // forcing it not to be cut-off when repeated. var contentBgHeight = 300; var contentHeight = $("#content").height(); var adjustedHeight = Math.ceil(contentHeight / contentBgHeight); $("#content").height(adjustedHeight * contentBgHeight); } $(document).ready(adjustContentHeight); What I'm looking for there is a way to respond to a div resizing event, but there doesn't seem to be such a thing. Also, please assume I have no access to the JS controlling the resizing of content in the content-div, though this is potentially a way of solving the problem. Another potential solution I was thinking off was to offset the background image in the bottom div by a certain amount depending on the height of the content-div. Again, the missing piece seems to be the ability to respond to a resize event.

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• How to stop flash content shine-through JQuery UI Dialog in FF Windows

  - by DEfusion

  I'm using the jQuery UI dialog box, in IE & FF on Windows I'm getting underlying flash content shining through the dialog box. I resolved this on IE by enabling the bgiframe option on the jQuery dialog window and changing the bgiframe script to apply to any windows browsers, however I'm still getting the shine-through on FF. Note that I can't know exactly where the flash content will be showing as it is usually flash widgets that users have added to pages, although I have thought about hiding the flash content temporarily while displaying the dialog box - is this the only option left to me?

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• Changing Render Kits in Browser

  - by John

  I'm working on a project to develop a cross-browser testing web app. Simply put, I'm tired of having to maintain multiple browsers on the same system and IE in VMware solely for the purpose of testing. Does anyone know if there is any way to change the render kit programmatically? For example, if I insert a URL, I would be able to load the URL and switch the browser render within a frame of some assortment. I am experienced with PHP, JS, and RoR if there is a solution using any of those. Thank you! John

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• Lightbox for embeddable JavaScript widget? Like Feedback tabs for UserVoice/GetSatisfaction

  - by Eliot Sykes

  There are so many lightboxes to choose from, I'm looking for a very lightweight one to use in an embedded javascript widget that would be used on a number of different web sites. This would work in a similar way to the GetSatisfaction/UserVoice feedback tab. Here are the requirements for the lightbox: Very small javascript download (animation not needed) Self contained, not dependent on any libraries such as jquery, etc. Works in major browsers Lightbox displays HTML content from a given URL Close button (like GetSatisfaction or UserVoice) Dims background Avoids javascript namespace conflicts (or can easily be made to avoid them) CSS styling of lightbox does not interfere with site styling Have you used an existing lightbox scripts for this same purpose with similar requirements? Did you roll your own? Insights welcome! Thanks, Eliot

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• How can HTML5 "replace" Flash?

  - by Kassini

  A topic of debate that's seen a resurgence since the unveiling of the iPad is the issue of Flash versus HTML5. There are those that suggest that HTML5 will one day supplant/replace Adobe Flash. I do not develop software that runs in a browser, so my (limited) understanding is: HTML is a pure-text markup language that is delivered over HTTP to a client browser. The client browser interprets the markup and renders (with varying degrees of success) the page according to an standard specification. Adobe Flash is a propriety framework for working with audio, video, sound and raster/vector graphics. It requires special authoring tools (a compiler perhaps?) and a custom player that's available as a plug-in to most common browsers. Could someone please explain (to this C/C++ developer) how it is possible from a technical/coding point-of-view that a text-based markup language (HTML5) could be considered a replacement to a multimedia framework (Flash)? Please no opinionated arguments - just technical facts.

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• What are best practices for managing related Cabal packages?

  - by Norman Ramsey

  I'm working on a dataflow-based optimization library written in Haskell. It now seems likely that the library is going to have to be split into two pieces: A core piece with minimal build dependencies; call it hoopl-core. A full piece, call it hoopl, which may have extra dependencies on packages like a prettyprinter, QuickCheck, and so on. The idea is that the Glasgow Haskell Compiler will depend only on hoopl-core, so that it won't be too difficult to bootstrap the compiler. Other compilers will get the extra goodies in hoopl. Package hoopl will depend on hoopl-core. The Debian package tools can build multiple packages from a single source tree. Unfortunately Cabal has not yet reached that level of sophistication. But there must be other library or application designers out there who have similar issues (e.g., one package for a core library, another for a command-line interface, another for a GUI interface). What are current best practices for building and managing multiple related Haskell packages using Cabal?

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• Flash AS3 Chrome Mailto link issues

  - by Ryano

  Hi I have a problem with flash in Chrome. I have a couple of mailto: links in my flash web page, when clicking on them in chrome they either don't do anything at all, opens up a blank page/tab and no email client or opens an email client once (have to refresh the page in order to click it again). Does anyone know the best way in which to do a chrome supported mailto? Seems to work in all other browsers. I have changed the target to _blank, _parent, _self etc. Plus I have one link actually on the stage and another running through AS. Hope that makes sense, cheers.

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• Web/HTML: how do referrer work technically?

  - by NoozNooz42

  I don't understand how comes webserver and trackers like Google Analytics are able to track referrals. Is it part of HTTP? Is it some (un)specified behavior of the browsers? Apparently everytime you click on a link on a webpage, the original webpage is passed along the request. What is the exact mechanism behind that? Is it specified by some spec? I've read a few docs and I've played with my own Tomcat server and my own Google Analytics account, but I don't understand how the "magic" happens. Bonus (totally related) question: if, on my own website (served by Tomcat), I put a link to another site, does the other site see my website as the "referrer" without me doing anything special in Tomcat?

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• Synchronizing ASP.NET MVC action methods with ReaderWriterLockSlim

  - by James D

  Any obvious issues/problems/gotchas with synchronizing access (in an ASP.NET MVC blogging engine) to a shared object model (NHibernate, but it could be anything) at the Controller/Action level via ReaderWriterLockSlim? (Assume the object model is very large and expensive to build per-request, so we need to share it among requests.) Here's how a typical "Read Post" action would look. Enter the read lock, do some work, exit the read lock. public ActionResult ReadPost(int id) { // ReaderWriterLockSlim allows multiple concurrent writes; this method // only blocks in the unlikely event that some other client is currently // writing to the model, which would only happen if a comment were being // submitted or a new post were being saved. _lock.EnterReadLock(); try { // Access the model, fetch the post with specificied id // Pseudocode, etc. Post p = TheObjectModel.GetPostByID(id); ActionResult ar = View(p); return ar; } finally { // Under all code paths, we must release the read lock _lock.ExitReadLock(); } } Meanwhile, if a user submits a comment or an author authors a new post, they're going to need write access to the model, which is done roughly like so: [AcceptVerbs(HttpVerbs.Post)] public ActionResult SaveComment(/* some posted data */) { // try/finally omitted for brevity _lock.EnterWriteLock(); // Save the comment to the DB, update the model to include the comment, etc. _lock.ExitWriteLock(); } Of course, this could also be done by tagging those action methods with some sort of "synchronized" attribute... but however you do it, my question is is this a bad idea? ps. ReaderWriterLockSlim is optimized for multiple concurrent reads, and only blocks if the write lock is held. Since writes are so infrequent (1000s or 10,000s or 100,000s of reads for every 1 write), and since they're of such a short duration, the effect is that the model is synchronized , and almost nobody ever locks, and if they do, it's not for very long.

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• In Eclipse, how to open a file browser in the directory of the currently edited file

  - by JC

  Hi, I know it's possible in eclipse to open file browsers from your project's resource browser, but is it possible for files that aren't part of your project ? Typically external includes are not found in your resource browser... If there is the equivalent of $(resource_loc) for the editor, it would work.. But I wasn't able to find it. Can anyone help me on this ? thanks! JC EDIT : I Found StartExplorer, but it's a joke of a plug-in. It is hardcoded to use WINDOWS explorer or cmd.exe. Also, it still requires you to use the resource browser. Other than that it can open paths selected in the editor, but they must be full paths.

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• jquery slider breaks on page refrsh

  - by Nik

  I have a jquery content slider on a site I'm developing. I am having a strange problem that seems to be across all browsers and that is the slider slides the wrong distance if the page is refreshed via the refresh button. To re-create the problem please follow these steps - click this link http://www.aus-media.com/dev/site_BYS/index.html then click on the 'About Bikram Yoga' menu item at the bottom. Click on the 'more' and 'back' tabs on this page and you will notice it works fine. Then refresh the page by clicking the refresh button and try the more and back buttons again. I'm a bit of a javascript newby so I'm lost to why it's doing this. Any help would be great. Thanks Nik

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• Why can't I set a cookie and redirect?

  - by Damian

  I´m having a problem setting a cookie and doing a 302 redirect In chrome the cookie is not being set (I haven't tested safari), in other browsers I was having the same problem until I added Path=/ to the cookie an now it works. This is how the header looks; the status is 302 Found Content-Type text/html; charset=iso-8859-1 Expires Thu, 01 Jan 1970 00:00:00 GMT Set-Cookie alasca-flash=error-Message<Required<error-Name<Required<error-Sex<Required<error-Age<Required<;Path=/ Location /messages/sdf Content-Length 0 Server Jetty(6.1.x) Any idea on why the cookie is not set? Or any workaround? Thanks!

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• Python Locking Implementation (with threading module)

  - by Matty

  This is probably a rudimentary question, but I'm new to threaded programming in Python and am not entirely sure what the correct practice is. Should I be creating a single lock object (either globally or being passed around) and using that everywhere that I need to do locking? Or, should I be creating multiple lock instances in each of the classes where I will be employing them. Take these 2 rudimentary code samples, which direction is best to go? The main difference being that a single lock instance is used in both class A and B in the second, while multiple instances are used in the first. Sample 1 class A(): def __init__(self, theList): self.theList = theList self.lock = threading.Lock() def poll(self): while True: # do some stuff that eventually needs to work with theList self.lock.acquire() try: self.theList.append(something) finally: self.lock.release() class B(threading.Thread): def __init__(self,theList): self.theList = theList self.lock = threading.Lock() self.start() def run(self): while True: # do some stuff that eventually needs to work with theList self.lock.acquire() try: self.theList.remove(something) finally: self.lock.release() if __name__ == "__main__": aList = [] for x in range(10): B(aList) A(aList).poll() Sample 2 class A(): def __init__(self, theList,lock): self.theList = theList self.lock = lock def poll(self): while True: # do some stuff that eventually needs to work with theList self.lock.acquire() try: self.theList.append(something) finally: self.lock.release() class B(threading.Thread): def __init__(self,theList,lock): self.theList = theList self.lock = lock self.start() def run(self): while True: # do some stuff that eventually needs to work with theList self.lock.acquire() try: self.theList.remove(something) finally: self.lock.release() if __name__ == "__main__": lock = threading.Lock() aList = [] for x in range(10): B(aList,lock) A(aList,lock).poll()

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• IE HTTPS Ajax request image not showing up

  - by Sha Le

  Hi: In IE (7 or 8) and HTTPS mode, following RESPONSE is delivered for an AJAX request. My issue is the img was NOT requested at all by IE (figured out using Fiddler), broken img is shown instead. It all works perfectly in HTTP mode in IE and other browsers no problem rendering in both mode (please don't tell me not to use IE). Any thoughts/work-arounds/suggestions? Thanks. <div> <h1>Chart Title</h1> <h2>Chart sub-title</h2> <img src="https://www.google.com/chart?cht=p3&chd=t:106,169,73,14&chds=0,169&chs=300x150&chtt=Ocean+Area&chdl=Atlantic|Pacific|Indian|Arctic&chma=0,0,0,0|70&chco=3366CC|DC3912|FF9900|109618&chp=4.7"> <p>message comes here</p> </div>

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• Jquery AutoComplete Plugin calling

  - by martinezgeovani

  When I use JQuery's autocomplete and hardcode the array values in the page it works wonderful; but what I need to do is obtain the array values from either a web service or from a public function inside a controller. I have tried various way and can't seem to make it work. The farthest I got is pulling the data in to a long string and when the auto complete results are provided it's the long string which matches, which I understand why. $("#TaskEmailNotificationList").autocomplete("http://localhost/BetterTaskList/Accounts/registeredUsersEmailList", { multiple: true, mustMatch: false, multipleSeparator: ";", autoFill: true }); has anyone encountered this? I am using C#. UPDATE: The below code is a step forward I am now getting an array returned but I think I'm processing it wrong on my page. var emailList = "http://localhost/BetterTaskList/Account/RegisteredUsersEmailList"; $("#TaskEmailNotificationList").autocomplete(emailList, { multiple: true, mustMatch: false, multipleSeparator: ";", autoFill: true }); [HttpGet] public ActionResult RegisteredUsersEmailList() { BetterTaskListDataContext db = new BetterTaskListDataContext(); var emailList = from u in db.Users select u.LoweredUserName; return Json(emailList.ToList(), JsonRequestBehavior.AllowGet); }

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• Why does my Workflow Service (4.0) variable go null in a DoWhile Activity?

  - by jlafay

  I have a WF service that I'm trying to setup receive activities to "Subscribe" and "Unsubscribe". I'm using This WF Durable Duplex Tutorial as a basis because my service performs callbacks to clients. Basically, think of it as a chat service. I can make client calls to the two receive activities just fine. What happens is the callback address of the client is passed in to Subscribe() on the service. The address is stored as a variable in the WF service and everything looks like it would work as to be expected. When a client calls Unsubscribe(), my watch I have set on the address var during debugging shows it as null. So what gives? Here's the basic setup of my WF service layout... Everything is enveloped in a DoWhile activity. Inside of that is a Pick activity and two Pick branches. The first branch is for subscribing activities. It has a receive-sendreply activity that assigns the string passed by the client to the WF address var. The second branch handles unsubscribing. The trigger is the Request activity and the client address is again passed in. From there it goes into a sequence, starting with an If. It checks to see if the unsubscribeAddress equals the address already subscribed. If it does, then it sets the address to String.Empty and sends a success message back to the client. Why would a variable that's scoped to the enveloping DoWhile activity be implicitly assigned to null? I'm trying to get this to work so I can implement multiple client subscribers from there and work on triggers that invoke callbacks to multiple clients. CONCAT EDIT: I set a breakpoint at the DoWhile level and my var is null once Unsubscribe() is called. When Subscribe() is invoked, the watch shows a value in the var all the way through. Until I Unsubscribe() with a client. Should I be using a While Activity instead?

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• Experience/Articles about "decision tree" documentation?

  - by Philipp Keller

  I'm running an "defect fixing" group (developers do 2 weeks operations, then rotate). I want to build up a documentation "how to deal with problem x" - basically a decision tree: Is the problem in part x of the web site? Yes: Is the problem occurring in all browsers? Yes: ... No: ... No: ... The documentation should be written and extended by the people using it. Do you know of any book/article describing how that is best done, or is there a software (Mac OS X) that helps doing that?

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• Rails, REST Architecture and HTML 5: Cross domain requests with pre-flight requests

  - by Orion

  While working on a project to make our site HTML 5 friendly, we were eager to embrace the new method for Cross Domain requests (no more posting through hidden iframes!!!). Using the Access Control specification we begin setting up some tests to verify the behaviour of various browsers. The current Rails RESTful architecture relies on the four HTTP verbs: GET, POST, PUT, DELETE. However in the Access Control spec, it dictates that non-simple methods (PUT, DELETE) require a pre-flight request using the HTTP verb OPTIONS. In addition during testing we discovered that Firefox 3.5.8 pre-flight POST requests as well. My question is this. Is anyone aware of any project for the Rails framework working to address the issue? If not, any opinions about the best strategy to support the OPTIONS method, since it has to support the routes for all the POST, PUT, DELETE methods?

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• Knowing the selections made on a 'multichooser' box in a mechanical turk hit (using Command Line Too

  - by gveda

  Hi All, I am new to Amazon Mechanical Turk, and wanted to create a hit with a qualification task. I am using the command line tools interface. One of the questions in my qualification task involves users selecting a number of options. I use a 'multichooser' selection type. Now I want to grade the responses based on the selections, where each selection has a different score. So for example, s1 has a score of 5, s2 of 10, s3 of 6, and so on. If the user selects s1 and s3, he/she gets a score of 11. Unfortunately, doing something like the following does not work: <AnswerOption> <SelectionIdentifier>s1</SelectionIdentifier> <AnswerScore>5</AnswerScore> </AnswerOption> <AnswerOption> <SelectionIdentifier>s2</SelectionIdentifier> <AnswerScore>10</AnswerScore> </AnswerOption> <AnswerOption> <SelectionIdentifier>s3</SelectionIdentifier> <AnswerScore>6</AnswerScore> </AnswerOption> If I do this, when I select multiple things, I get a score of 0. If I select only one option, say s1, then I get the appropriate score. Can you please help me on how to go about this? I could ask the same question 5 times with the same options, but then users might choose the same answer multiple times - something I wish to avoid. Thanks! Gaurav

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• Using SWFObject, the flash moves 1 pixel to the right on Firefox

  - by jeffkee

  Please check this page: http://islandhideaway.weebly.com/ For whatever reason, the flash slideshow moves over 1 pixel when opened in Firefox on my Mac. All other browsers render it fine, but only on Firefox it leaves a 1 pixel white gap on the left! I am using the most recent version of SWFObject. This unfortunately is a garbage Weebly site and I cannot use jQuery in the system so I can't do a real gallery... so let's save the whole "don't use Flash for that" pep talk. It's a favour for a friend and I am already aware of better ways to do it. :)

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• Jquery click event assignment not working in Firefox

  - by Mantorok

  Hi all I'm assigning a click event to a bunch of anchors by class name, and it works in all browsers except Firefox, here is the JS: var click_addthis = function(e, href) { if (!e) { var e = window.event; } e.cancelBubble = true; if (e.stopPropagation) e.stopPropagation(); window.open(href, "Share It", null); return false; } $(document).ready(function() { $(".addthis_button_facebook").click(function() { click_addthis(event, this.href) }); $(".addthis_button_twitter").click(function() { click_addthis(event, this.href) }); }); Am I missing something? Thanks

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