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• Facebook Oauth Logout

  - by Derek Troy-West

  I have an application that integrates with Facebook using Oauth 2. I can authorize with FB and query their REST and Graph APIs perfectly well, but when I authorize an active browser session is created with FB. I can then log-out of my application just fine, but the session with FB persists, so if anyone else uses the browser they will see the previous users FB account (unless the previous user manually logs out of FB also). The steps I take to authorize are: Call [LINK: graph.facebook.com/oauth/authorize?client_id...] This step opens a Facebook login/connect window if the user's browser doesn't already have an active FB session. Once they log-in to facebook they redirect to my site with a code I can exchange for an oauth token. Call [LINK: graph.facebook.com/oauth/access_token?client_id..] with the code from (1) Now I have an Oauth Token, and the user's browser is logged into my site, and into FB. I call a bunch of APIs to do stuff: i.e. [LINK: graph.facebook.com/me?access_token=..] Lets say my user wants to log out of my site. The FB terms and conditions demand that I perform Single Sign Off, so when the user logs out of my site, they also are logged out of Facebook. There are arguments that this is a bit daft, but I'm happy to comply if there is any way of actually achieving that. I have seen suggestions that: A. I use the Javascript API to logout: FB.Connect.logout(). Well I tried using that, but it didn't work, and I'm not sure exactly how it could, as I don't use the Javascript API in any way on my site. The session isn't maintained or created by the Javascript API so I'm not sure how it's supposed to expire it either. B. Use [LINK: facebook.com/logout.php]. This was suggested by an admin in the Facebook forums some time ago. The example given related to the old way of getting FB sessions (non-oauth) so I don't think I can apply it in my case. C. Use the old REST api expireSession or revokeAuthorization. I tried both of these and while they do expire the Oauth token they don't invalidate the session that the browser is currently using so it has no effect, the user is not logged out of Facebook. I'm really at a bit of a loose end, the Facebook documentation is patchy, ambiguous and pretty poor. The support on the forums is non-existant, at the moment I can't even log in to the facebook forum, and aside from that, their own FB Connect integration doesn't even work on the forum itself. Doesn't inspire much confidence. Ta for any help you can offer. Derek ps. Had to change HTTPS to LINK, not enough karma to post links which is probably fair enough.

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• valuechangelistener in ice:selectBooleanCheckbox

  - by chetan

  There is a jspx page in my application where I use datatable within datatable first column I put is selectbooleancheckbox and I use value changelistener for selectbooleabcheckbox. Now problem is for two column first one is actually active when I click on second. This is a code

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• TFS 2010 Workitem auto transition

  - by Luka

  Hi, How can I make work item to auto tansit from new to assigned state when I populate Assigned To field. Ie. I have reported a bug so its state is new. Now I populate (select from dropdown) the Assigned To field, and I want it to automatically transit to Assigned state (Active state). Please help.

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• Hide cursor in Chrome (and IE)

  - by Chris

  I have the following CSS that hides the mouse cursor for anything on the web page. It works perfectly in FireFox but in IE and and Chrome it doesn't work. html { cursor: none; } In Chrome I always see the mouse pointer. In IE however I see whatever cursor was last 'active' when it entered the screen. Presumably it's keeping the last selection instead of removing it.

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• How to get screen size on Windows Phone 7 Series?

  - by Igor Zevaka

  How do I programatically get the screen resolution on WP7? Here are a bunch of links that get the same job done in desktop WPF and Silverlight, but none of them work on the phone. Any ideas? http://social.msdn.microsoft.com/Forums/en-US/windowsphone7series/thread/f0639904-a368-44db-9ddd-efcaf8fc736e http://social.msdn.microsoft.com/Forums/en-US/wpf/thread/6b6b832f-0dfd-428c-84cd-b1b9e7f236cf http://stackoverflow.com/questions/254197/how-can-i-get-the-active-screen-dimensions http://social.msdn.microsoft.com/Forums/en-US/windowsphone7series/thread/f0639904-a368-44db-9ddd-efcaf8fc736e

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• Windows Workflow Foundation 4 (WF4) Error Handling

  - by Russ Clark

  What is the best way to get error messages from a WF4 workflow back to a hosting ASP.NET MVC application? I need the workflow to not terminate, but continue to be active, and then pass a message back to the hosting app regarding the error, so the user can take an alternative action, but I'm not sure how to do that.

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• What are the limitations of Windows CE 4.2?

  - by cdonner

  Other than Active Sync not working, are there any other limitations that I need to consider when targeting a Windows CE 4.2 device for a CF 3.5 application in C# that uses WCF to talk to a server?

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• clickonce - what is a good open source alternative to clickonce? (DDay.Update)?

  - by Greg

  Hi, What is a good open source alternative to clickonce? One that is most popular and under active development I guess? DDay.Update perhaps? Is this the main one? thanks PS. I've come up with a few from searching, but would appreciate any feedback from people how have reviewed these and have an idea of which is most popular/worth looking into first. .NET Application Updater Component - http://windowsclient.net/articles/appupdater.aspx nlaunch - http://code.google.com/p/nlaunch/ dotnetautoupdate http://code.google.com/p/dotnetautoupdate/

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• How is "Esc" key handled in WPF Window?

  - by Markus2k

  I want the Escape key to close my WPF window. However if there is a control that can consume that Escape key, I don't want to close the Window. There are multiple solutions on how to close the WPF Window when ESC key is pressed. eg. http://stackoverflow.com/questions/419596/how-does-the-wpf-button-iscancel-property-work However this solution closes the Window, without regard to if there is an active control that can consume the Escape key.

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• How do I poke the flag in a win32 PE that controls console window display

  - by mbac32768

  I have an executable which is part of a batch process. This one executable opens a console window, which is annoying since it's useless to the end user and steals focus away from their active task. We can't compile a new version from of this EXE from source (easily). Is there an easy way to twiddle this setting in the PE?

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• Validate subset of a form using jQuery Validate plugin

  - by Andrew Davey

  My HTML form has a number of divs that are the steps of a wizard. Upon clicking a "next" button I want to validate just the active div. I'm using the jQuery.Validate.js plugin. Each div has an ID, so I want a way to say something like: wizardForm.validate().element('#first-step :input') but this only validates the first input, not all of them. How can I validate all inputs within a div?

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• Derived class linker - is this wrong?

  - by bobobobo

  We have this situation: A B ^ ^ | / C so class A { } class B { } class C : public A, public B { } Now, B wants to access a property in C. How do you do this? The solution I came up with is to place a pointer in B to an instance of C, which is only active (not null) if this B is in fact a C.

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• SIFR 3.0 - Font Size

  - by Nick

  I have been working with SIFR 3.0 for some time now and the font-size never seems to work correctly. I understand the most basic concepts behind SIFR. SIFR runs when you load the page. It does some calculations one the size of the HTML rendered font and then replaces it with a flash movie that is roughly equal to that size. Because of this, you want to style your HTML font to match the size of your SIFR font as close as possible. My problem always comes up when trying to style these two font sizes to match. Let's say I want to use a SIFR font of Helvetica Neue Lt at about 32px. The HTML equivalent is something like Arial Narrow at about 36px with some negative letter spacing. So here is what I do. In sifr.css I'll write: @media screen { .sIFR-active h1 { visibility: hidden; z-index: 0 !important; font-size: 36px; } } Great, that gets the default HTML font the size I need. Now I need to update the flash SIFR font size. So I go into sifr-config.js and write something like this: sIFR.replace(HelveticaNeueThinCond, { selector: 'h1', css: '.sIFR-root { color: #762123; font-size: 32px; line-height: 1em; }', transparent: true }); So right now everything is working great. That is until my h1 text wraps more than one line. For some reason, when the text wraps it only shows the first line. It seems calculates the height wrong. This is very weird because I ran some tests. I took "visibility: hidden" off of "sIFR-active h1" to make sure that the HTML rendered text was the right size. It is, it takes up two lines. However, when the Flash replaces this text it gives it a min-height of one line of text. Odd. The only way I could find to fix this wrapping problem was to remove "font-size: 32px;" from "sIFR.replace(HelveticaNeueThinCond" in sifr-config. The problem I run into then is that it inherits the font-size set in sifr.css. Now the problem is that my HTML text is bigger then the SIFR text. So occasional my HTML text will wrap to a new line before my SIFR text leaving a big white space. So, how do I set two different font-size (one for my HTML text and one for my SIFR) without losing the wrapping. The only time I have been able to use the successfully is when I have a SIFR font that is so similar to a web safe font that they can share the same font-size attribute. Thanks

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• Set ActiveTabIndex on Ajax TabContainer inside CompositeControl

  - by MADCookie

  I am creating a CompositeControl in VB ASP.NET. My control has an Ajax TabContainer with several TabPanels. I need to code it so a value on the querystring can set the container's ActiveTab. Regardless of the querystring piece of this issue, in my CreateChildControl code, I am setting the ActiveTabIndex to a valid index position, but the UI still has the index 0 as active. Any tips? Any help?

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• Silverlight prism region events

  - by synergetic

  In silverlight prism application I have a region (ContentControl) and would like to remove currently active view before adding another view. I tried to use region.PropertyChanged event but it doesn't fire. I can do it in the code where I add new view, but that will scatter my code. How to achieve this? Thanks for reply.

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• Build a ruby daemon that integrates my rails environement

  - by jjmartres

  Hi guys, I need to build a ruby daemon that will use the freeswitcher eventmachine library for freeswitch. Since few days I as looking the web for the best solution to build a ruby daemon that will integrate my rails environment, specailly my active record models. I've take a look to the excellent Ryan Bates screencast (episodes 129 custom daemon) but I'm not sure that is still an actual solution. Does anyone known a good way to do that ? Thanks all for your help.

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• Java: Checking if PC is idle

  - by Scott Straughan

  This is a rather tricky question as I have found no information online. Basically, I wish to know how to check if a computer is idle in Java. I wish a program to only work if the computer is in active use but if it is idle then to not. The only way i can think of doing this is hooking into the mouse/keyboard and having a timer. MSN Messenger has that "away" feature, I wish for something similar to this.

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• Best Places for Software Developer To Live

  - by Mike

  What is the single best area in which to live, in order to have a career in software development while also living an active, healthy life? Ideally, software and other types of jobs would be plentiful, the air and water clean, transportation reasonable, and outdoor activities plentiful and nearby.

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• Trouble accessing MSWord ActiveDocument

  - by Adam Tegen

  When I try to programmatically access a word object model, I get an error no document is active. This appears to be because I am loading the document as not visible using Word automation, and I have to keep it invisible. How would I code the open macro so that it does nothing in this case? "If Not ActiveDocument is Nothing Then" didn't work. Private Sub Document_Open() If (ActiveDocument.SaveFormat = wdFormatRTF) Then 'Do some stuff End If End Sub

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• Should software engineers take the upcoming PE exam for software engineering?

  - by jschmier

  I realize that this question is quite similar to this one, but news of a PE exam being developed specifically for software engineering by the NCEES and IEEE has piqued my interest. Should software engineering professionals take the (upcoming) PE exam for software engineering in addition to their degree (or relevant work experience)? Note: I realize the exam being developed is still sometime away, but I'm curious about the thoughts of the professionals active on Stack Overflow.

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• Setting up SSL on a local xampp/apache server

  - by cvack

  I'm trying to access a Active Directory from my local webserver. To do this I'm using the latest version of xampp and a PHP script called adLDAP. If I understand things right, I need to enable SSL to access https URLs. I've tried to google it but with no luck :( Could anyone link a tutorial or explain to me how to install SSL on xampp/apache for windows 7 64bit? Any help would be appreciated :)

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• Document generation template engine for production usage NVelocity vs StringTemplate

  - by Chris Marisic

  For building a document generation engine what would be the primary .NET framework to be used in production. The 2 main ones I see are NVelocity and StringTemplate. NVelocity in all forks to be almost unsupported at this point where as ST been active atleast as of this year. Are either or both of these stable for use in production (if nv which fork)? Has anyone had any particularly good success with or failures using either of those frameworks?

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• C# Design Questions

  - by guazz

  How to approach unit testing of private methods? I have a class that loads Employee data into a database. Here is a sample: public class EmployeeFacade { public Employees EmployeeRepository = new Employees(); public TaxDatas TaxRepository = new TaxDatas(); public Accounts AccountRepository = new Accounts(); //and so on for about 20 more repositories etc. public bool LoadAllEmployeeData(Employee employee) { if (employee == null) throw new Exception("..."); EmployeeRepository emps = new EmployeeRepository(); bool exists = emps.FetchExisting(emps.Id); if (!exists) { emps.AddNew(); } try { emps.Id = employee.Id; emps.Name = employee.EmployeeDetails.PersonalDetails.Active.Names.FirstName; emps.SomeOtherAttribute; } catch() {} try { emps.Save(); } catch(){} try { LoadorUpdateTaxData(employee.TaxData); } catch() {} try { LoadorUpdateAccountData(employee.AccountData); } catch() {} ... etc. for about 20 more other employee objects } private bool LoadorUpdateTaxData(employeeId, TaxData taxData) { if (taxData == null) throw new Exception("..."); ...same format as above but using AccountRepository } private bool LoadorUpdateAccountData(employee.TaxData) { ...same format as above but using TaxRepository } } I am writing an application to take serialised objects(e.g. Employee above) and load the data to the database. I have a few design question that I would like opinions on: A - I am calling this class "EmployeeFacade" because I am (attempting?) to use the facade pattern. Is it good practace to name the pattern on the class name? B - Is it good to call the concrete entities of my DAL layer classes "Repositories" e.g. "EmployeeRepository" ? C - Is using the repositories in this way sensible or should I create a method on the repository itself to take, say, the Employee and then load the data from there e.g. EmployeeRepository.LoadAllEmployeeData(Employee employee)? I am aim for cohesive class and but this will requrie the repository to have knowledge of the Employee object which may not be good? D - Is there any nice way around of not having to check if an object is null at the begining of each method? E - I have a EmployeeRepository, TaxRepository, AccountRepository declared as public for unit testing purpose. These are really private enities but I need to be able to substitute these with stubs so that the won't write to my database(I overload the save() method to do nothing). Is there anyway around this or do I have to expose them? F - How can I test the private methods - or is this done (something tells me it's not)? G- "emps.Name = employee.EmployeeDetails.PersonalDetails.Active.Names.FirstName;" this breaks the Law of Demeter but how do I adjust my objects to abide by the law?

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• Collapse span when input button is hidden

  - by Evan

  I have a style that wraps around an input button, so the button can be styled very creatively. When the button is hidden in .Net, i would like the style to collapse so it renders like its hidden as well. What the style does, as a result of no value in the button or its hidden, is it keeps a small shape. Click to see a demo: http://media.apus.edu/it/evan-testing/button.htm <style> .button { cursor:pointer; text-decoration:none; background:url(button_bg.gif) no-repeat right top; padding-right:10px; display:inline-block; line-height:29px; height:29px; font-size:12px; color:#FFFFFF; font-weight:bold; } span.button { vertical-align: middle; } .button span { background:url(button_bg.gif) no-repeat left top; padding-left:10px; line-height:20px; height:29px; display:inline-block; } .button span span { background:transparent; padding:0; font-size:12px; } .button span input { cursor:pointer; font-weight:bold; background:transparent; border:0; padding-top:.4em; font-size:12px; font-family:verdana; color:#FFFFFF; } .button:hover { background-position:right -39px; } .button:hover span { background-position:left -39px; } .button:active { background-position:right -78px; } .button:active span { background-position:left -78px; } </style> Input button wrapped in a span with no value: <span class="button"><span><input type="button" value=""></span></span> <P> Input button wrapped in a span with a value: <span class="button"><span><input type="button" value="test"></span></span> <P> Span with no data value: <span class="button"><span></span>

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• Can't checkin to Facebook Places by post to api?

  - by MarcusJoe

  Hey everybody, I am trying to build an app where I let my registered user be able to check in to places on Facebook Places. I however for some reason can't seem to make this work. I assumed this is possible with the Api as write functionality has been added to it, but I couldn't find an clear explanation on the web. this is what I currently have, after I have asked the user for permission to publish checkins and for user_checkins. <?php require("src/facebook.php"); $facebook = new Facebook(array( 'appId' => 'xxxxxxxxx', 'secret' => 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx', 'cookie' => true )); # see if active session $session = $facebook->getSession(); if(!empty($session)) { try{ $uid = $facebook->getUser(); $api_call = array( 'method' => 'users.hasAppPermission', 'uid' => $uid, 'ext_perm' => 'publish_checkins' ); $can_post = $facebook->api($api_call); if($can_post){ $facebook->api('/'.$uid.'/checkins', 'POST', array( 'access_token' => $facebook->getAccessToken(), 'place' => 'place_id', 'message' =>'I went to placename today', 'picture' => 'http://www.place.com/logo.jpg', 'coordinates' => array( 'latitude' => 'lattiude', 'longitude' => 'lattitude', 'tags' => $uid, ) ) ); echo 'You were checked in'; } else { die('Permissions required!'); } } catch (Exception $e){} } else { # There's no active session,generate one $login_url = $facebook->getLoginUrl(); header("Location: ".$login_url); } ?> The code works when I change it 'checkins' to 'feed'. Is there something wrong with my code or am I trying to do somethign that isn't possible (or do it the wrong way). Any help will be greatly appreciated as I already spent quite a significant amount of time trying to fix this, but I just can't seem to make it work. Best regards, Marcus Joe

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