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  • Attached Property port of my Window Close Behavior

    - by Reed
    Nishant Sivakumar just posted a nice article on The Code Project.  It is a port of the MVVM-friendly Blend Behavior I wrote about in a previous article to WPF using Attached Properties. While similar to the WindowCloseBehavior code I posted on the Expression Code Gallery, Nishant Sivakumar’s version works in WPF without taking a dependency on the Expression Blend SDK. I highly recommend reading this article: Handling a Window’s Closed and Closing Events in the View-Model.  It is a very nice alternative approach to this common problem in MVVM.

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  • What is the difference between these senior software engineer titles?

    - by stackoverflowuser2010
    I'm currently a senior research software engineer at a large company and am being offered a "senior staff engineer" position somewhere else. I am not sure if the new position's title conveys a sideways move or an advancement. So, all other things being roughly equal (salary, domain of expertise, etc.), what is the external difference between these software engineer titles (in general and regardless of any particular company, if possible): senior engineer senior research engineer senior staff engineer member of technical staff principal engineer Edit: Let me elaborate on "member of technical staff" since it's kind of uncommon. I think it's a high title, commonly associated with research. I know that Oracle, VMWare, and the old Bell Labs have these titles. See: Member of Technical Staff . I know what it means, but I don't know how it stacks up against the other titles, which is why I asked.

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  • The SQL Server Community

    - by AllenMWhite
    In case you weren't aware of it, I absolutely love the SQL Server community. The people I've gotten to know have amazing knowledge, and they love sharing that knowledge with anyone who wants to learn. How can you not love that? It's inspiring and humbling all at the same time. There are a number of venues where the SQL Server community comes together. I'm including Twitter , the PASS Summit , the various SQL Saturday events, SQLBits , Tech Ed , and the local user groups. Each of us takes part in...(read more)

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  • Help me understand a part of Java Language Specification

    - by Software Engeneering Learner
    I'm reading part 17.2.1 of Java language specification: http://docs.oracle.com/javase/specs/jls/se7/html/jls-17.html#jls-17.2.1 I won't copy a text, it's too long, but I would like to know, why for third step of sequence they're saying that If thread t was removed from m's wait set in step 2 due to an interrupt Thread couldn't get to step 2 it wasn't removed from wait set, because it written for the step 1: Thread t does not execute any further instructions until it has been removed from m's wait set Thus thread can't be removed from wait set in step 2 whatever it's due to, because it was already removed. Please help me understand this.

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  • Drawing an animation over an already drawn screen

    - by Chandan Pednekar
    I am working on a XNA WP7 card game whose basic prototype is complete. In game screen, 6 cards are displayed at a time (3 for each of the two players say 1,2 and 3). If player A attacks one of player B's card then I want to show an animation over player B's card i.e the victim card(say a claw scratch for e.g.) My question is how do I approach with the animation system so that I can draw an animation over a card upon certain events e.g. dead, fire, claw attack etc. I have an attack function which detects which type of card is attacking which type of card. Depending on the type of attacker card I want to display the animation on the victim card. Can I call animation classes function for different animations in the attack function itself without actually having to call separate draw and update functions. If so, how? Also how do I play sound at the same time when the animation is going on?

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  • useFastClick in JQuery Mobile

    - by Yousef_Jadallah
      Normal 0 false false false EN-US X-NONE AR-SA /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:Arial; mso-bidi-theme-font:minor-bidi;} For who want to convert the application from JQM Alpha to JQM Beta 1, needs to bind  click  events to the new vclick one. Click event is working in general browsers butt that is needed for iOS and Android, useFastClick  is (touch + mouse click). Moreover if you have this event alot in your project you can turn useFastClick off in mobileinit event: $(document).bind("mobileinit", function () {             $.mobile.useFastClick = false; });   vclick event is needed to support touch events to make the page changes to happen faster, and to perform the URL hiding. So you need to change something like this  $('btnShow').live("click", function (evt) {   To :  $('btnShow').live("vclick", function (evt) {     For more information : http://jquerymobile.com/test/docs/api/globalconfig.html   Here you can find full example in this case : <!DOCTYPE ><html xmlns="http://www.w3.org/1999/xhtml"><head>    <link rel="stylesheet" href="http://code.jquery.com/mobile/1.0b1/jquery.mobile-1.0b1.min.css" />    <script src="http://code.jquery.com/jquery-1.6.1.min.js"></script>    <script src="http://code.jquery.com/mobile/1.0b1/jquery.mobile-1.0b1.min.js"></script>    <script type="text/javascript">     //Here you need to use vclick instead of click event         $('ul[id="MylistView"] a').live("vclick", function (evt) {            alert('list click');        });      </script>    <title></title></head><body>    <div id="FirstPage" data-role="page" data-theme="b">        <div data-role="header">            <h1>                Page Title</h1>        </div>        <div data-role="content">            <ul id="MylistView" data-role="listview" data-theme="g">                <li><a href="#SecondPage">Acura</a></li>                <li><a href="#SecondPage">Audi</a></li>                <li><a href="#SecondPage">BMW</a></li>            </ul>        </div>        <div data-role="footer">            <h4>                Page Footer</h4>        </div>    </div>    <div id="SecondPage" data-role="page" data-theme="b"   >        <div data-role="header" >            <h1>                Page Title</h1>        </div>        Second Page        <div data-role="footer">            <h4>                Page Footer</h4>        </div>    </div></body></html>     Hope that helps.

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  • Habanero

    - by csharp-source.net
    An Enterprise Application Framework for .Net that is ideally suited for developing applications in an agile manner. The framework is used for producing an application from the data layer through to the front-end. Free open source under the LGPL license, it includes ORM, code generation and runtime UI generation to create one application for the desktop & web. Features: * ORM: Map database tables to objects in code * Persist property values to and from the database * Define all mapping in a single XML file * Switch between database vendors with one setting * Support for MySQL, MS Sql Server, MS Access, Oracle, PostgreSQL, SQLite, Firebird * FireStarter GUI class definitions xml manager * Generate user interfaces and map properties to controls * Develop for both desktop (with Windows Forms) and web (with Gizmox' Visual WebGUI) * Generate new projects and code files * Generate UI forms from templates * Reverse engineer class definitions from existing databases * Support variable data sources, including an in-memory database. Ships with Firestarter a free database reverse engineering, Domain Modelling and Code Generator.

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  • Book (or resource) on Java bytecode

    - by Andrea
    I am looking for some resources on the JVM bytecode. Ideally I would for a short book; something more than a blog post but not a 800 pages tome. If it is relevant, I am a Scala developer, not a Java one, although I know Java just fine. I would like something that allowed me to read JVM bytecode and answer questions such as: Why does the bytecode has to know about high level construct such as classes? Are subtyping relations still visible in bytecode? How does type erasure work exactly? How do Oracle and Dalvik bytecode differ, and what consequences does this have for, say, developing Android apps with Scala? How does the JVM manage the stack, and why exactly this creates issues with tail call elimination? and so on.

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  • Few questions about Thunderbird in Ubuntu 11.10

    - by Darwell
    I am happy with Ubuntu choice to replace Evolution with Thunderbird. However, I am having some issues with it. 1. What do you use to make Thunderbird minimize (and disappear from the launcher) when closing it? It should still be running (and give me notifications of new emails) but do not bother me on Launcher or in the list of windows, because I need free space. I tried using FireTray extension, it works quite okay, but it's buggy - sometimes there are two instances of Thunderbird open when using it and also, Thunderbird's global menu disappears after some time of using the extension. 2. Is there a plan to integrate Thunderbird's calendars into Date indicator in Ubuntu? I'd like to see my events when I have clicked on the time. Thanks.

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  • SharePoint Saturday LA&ndash;Free Conference

    - by MOSSLover
    There are four really cool national board members for Women in SharePoint, Cathy Dew, Nedra Allmond, Michelle Strah, and and Lori Gowin.  Nedra is running Women in SharePoint West and she just also happens to be helping out with SharePoint Saturday LA.  If you guys had no idea that California also has SharePoint Saturdays then you were wrong.  There is a SharePoint Saturday on April 2nd in the greater Los Angeles Area.  If anyone is interested in the vicinity please visit this site: http://www.sharepointsaturday.org/la/default.aspx. Technorati Tags: SharePoint Saturday,Los Angeles,SharePoint 2010,SharePoint Events

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  • is a merchant account a requirment for a website to take payments..

    - by calum
    Hi, I have had a quick look but couldn't see anything related. Basically, if we were to accept payments for events on our website, via paypal (essentially a Buy it now! button), as a business, do we need a merchant's account, or will a regular bank account be acceptable? I may have some confusion in terms. My understanding is you need a merchant's account to accept credit card payments, but as we are using PayPal, is this necessary? Thank you for any clarification. disclaimer - I've read What are some options for taking payments on my website? but it doesn't explicitly say if we require a merchant account or not. Thank you.

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  • Announcing a new Free Windows Azure Platform Trial offer

    - by Eric Nelson
    We now have a  truly useful Windows Azure Platform trial. Which makes me very happy as I was a vocal critic of the original trial offer. Simply put, the small number of compute hours it included made it useless for many potential early adopters. This is now fixed. The new Introductory Special now includes a generous 750 hours of compute – enough to run a web role 24/7. Enjoy! Related Links Full announcement If you are an ISV then there is a better offer for you via Microsoft Platform Ready and Cloud Essentials and keep an eye on our events for ISVs as we will be doing Windows Azure Platform technical briefings starting March 31st.

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  • Fixed Sized Buffer or Variable Buffers with C# Sockets

    - by Keagan Ladds
    I am busy designing a TCP Server class in C# that has events and allows the user of the class to define packets that the server can send a receive by registering a class that is derived from my "GenericPacket" class. My TCPListener uses Async methods such as .BeginReceive(..); My issue is that because I am using the .BeginReceive(); I need to specify a buffer size when I call the function. This means I cant read the whole packet if one of my defined packets is too big. I have thought of creating a fixed sized Header that gets read using .BeginRead(); and the read the rest using Stream.Read(); but this will lead to the whole server having to wait for this operation to complete. I would like to know if anyone has come across this before and I would appreciate any suggestions.

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  • What is "networking" for your career and how do you know if you have done it successfully?

    - by Jay Godse
    Many people suggest "networking" as a tool or technique to build your career, get better jobs, get promotions, et cetera. But what is "networking"? And more importantly, how do you know if you have "networked" or "built your network" "successfully"? (I quoted all the terms which I think may have subjective and widely varying definitions). Many folks think that networking is schmoozing at networking events. Others think it is adding "friends" to Facebook or LinkedIn. But how do measure the success of such networks or activities? But we all know people (perhaps ourselves) who have done those things and still have trouble getting jobs, promotions, and recognition.

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  • How to change the terminal to SCO compliant

    - by kaushik
    I have a server in which SCO 5.x is installed. I have several thin clients which were supplied from our head office. Those thin clients have linux pre-installed in them. When we tried to connect to our SCO server, we have found out that the thin client does not support SCO terminal type. So the program (Which is written in Oracle forms) is not working correctly. Lots of function keys stopped working and screen also not getting refreshed correctly. Hence we decided to use Ubuntu Live USB keys in thin clients. Now the problem is how can we change the terminal type to SCO in ubuntu ? Means I want it in the text terminal (Alt+Ctrl+F1,F2...) (Not in xterm...graphical terminal emulators). Does ubuntu support SCO terminal type ?

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  • Languages with similar features to JavaFX Script

    - by bunglestink
    I just completed a small project in JavaFX, only finding that it has been declared dead by Oracle. JavaFX Script actually seemed to be a pretty interesting language with some neat features for its domain, particularly with bind for data binding and on replace for triggered events. These features actually make the language very useful for small, quick, RIA type apps, which leads to my question: Are there any mainstream languages with features similar to bind and on replace? After working with JavaFX, I got some ideas for some small personal (academic) projects that could take advantage of these features, but I would prefer to not start anything new in a language considered extinct by its owners.

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  • Displaying and updating score in Android (OpenGL ES 2)

    - by user16547
    I'm using a FrameLayout where I have a GLSurfaceView at the bottom and a few Views on top of it. One of those Views is a TextView that displays the current score. Here's how I'm updating the score TextView based on what happens in my game loop: whenever an event happens that increases the score, I call activity.runOnUiThread(updater), where activity is the activity that has the above FrameLayout (my main game activity) and updater is just a Runnable that increments the score. From my understanding, using runOnUiThread() from the OpenGL thread is standard practice - otherwise you'll get an exception, I can't remember its name. The problem is that there's a very noticeable lag between the event and the score update. For example the character gets a coin, but the coin count is not updated quickly. I tried summing all the score events from my game loop and calling runOnUiThread() only once per loop, but it doesn't seem to make much of a difference - the lag is still noticeable. How can I improve my design to avoid this lag?

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  • MAAS fails to Commission nodes

    - by user3644848
    I'm evaluating MaaS/Juju. I followed instructions in this link http://maas.ubuntu.com/docs1.5/install.html to setup MaaS. I'm running this in Oracle VirtualBox environment so Power options are not configured for the VMs. PXE booting VM works fine. The node shuts down itself and registers with MaaS in Declared state. Issues: a) When I Commission the VM (which is in the Declared state), first it gets IP-Config: no response after 60 secs - giving up errors. (See link below for a screenshot). b) Fails to mount the boot device and drops into initramfs prompt. I've copied logs here: https://www.dropbox.com/sh/5gy9nnonbnccufo/AAD9o4awSOtyaCCmRe5q7rBva Any help to get past this is greatly appreciated. Thanks!

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  • Retrieving snapshots of game statistics

    - by SatheeshJM
    What is a good architecture for storing game statistics, so that I can retrieve snapshots of it at various moments? Say I have a game, and the user's statistics initially are: { hours_played = 0, games_played = 0, no_of_times_killed = 0, } When the user purchases something for the first time from within the game, the stats are { hours_played = 10, games_played = 2, no_of_times_killed = 5, } And when he purchases something for the second time, the stats are { hours_played = 20, games_played = 4, no_of_times_killed = 10, } Let me name the events as "purchase1" and "purchase2" How do I model my statistics, so that at any point in the future, I will be able to retrieve the snapshot of the statistics at the time when "purchase1" was fired. Similarly for "purchase2" and any other event I will add. Hope that made sense..

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  • Quel est votre mentor informatique ? Quel développeur célèbre est votre plus grande inspiration ?

    Quel est votre mentor informatique ? Quel développeur célèbre est votre plus grande inspiration ? Il n'y a pas que dans le showbizness qu'il y a des héros, dans l'industrie du développement de logiciels, certains noms sortent également du lot. Et ces programmeurs hors du commun deviennent parfois les modèles de certains. Il y a des fans de Madonna, de Brad Pitt, de Ribéry, de Claude Monet, etc... (ou de Chantal Goya, mais c'est plus rare). Et en informatique ? Quelle personnalité de ce milieu est la plus admirée ? Voici une liste des principaux acteurs de ce secteur : James Gosling Un développeur Java qui vient de quitter Oracle. Il a déjà fait tellement de choses dans sa carrière,...

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  • How To See Who Logged Into a Computer and When

    - by Chris Hoffman
    Have you ever wanted to monitor who’s logging into your computer and when? On Professional editions of Windows, you can enable logon auditing to have Windows track which user accounts log in and when. The Audit logon events setting tracks both local logins and network logins. Each logon event specifies the user account that logged on and the time the login took place. You can also see when users logged off. How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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  • Target tracking with a small delay (actionscript 3.0)

    - by John Dodson
    I'm having trouble thinking of a good method to track my character with an enemy attack. Of course, I don't want the attack to track my character's current position; I want it to track where the character was about 1 second before (so you can move around and make the attack miss and loop around you sort of a thing). The general structure of my game uses a timer to update all of my events. I have a timer going off every 25 milliseconds that updates everything, including my player's position and the enemies position. Right now I just have the enemy attack directly targeting my character....which works fine except that it's impossible to escape =p. Let me know if I didn't supply enough details. My approach was going to basically be get my character's position from about 1 second ago, then have the enemy target that position, the only problem is I can't think of a good way to get my character's position from previous times. Thanks for the help!

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  • what's wrong with this Lua code (creating text inside listener in Corona)

    - by Greg
    If you double/triple click on the myObject here the text does NOT disappear. Why is this not working when there are multiple events being fired? That is, are there actually multiple "text" objects, with some existing but no longer having a reference to them held by the local "myText" variable? Do I have to manually removeSelf() on the local "myText" field before assigning it another "display.newText(...)"? display.setStatusBar( display.HiddenStatusBar ) local myText local function hideMyText(event) print ("hideMyText") myText.isVisible = false end local function showTextListener(event) if event.phase == "began" then print("showTextListener") myText = display.newText("Hello World!", 0, 0, native.systemFont, 30) timer.performWithDelay(1000, hideMyText, 1 ) end end -- Display object to press to show text local myObject = display.newImage( "inventory_button.png", display.contentWidth/2, display.contentHeight/2) myObject:addEventListener("touch", showTextListener) Question 2 - Also why is it the case that if I add a line BEFORE "myText = ..." of: a) "if myText then myText:removeSelf() end" = THIS FIXES THINGS, whereas b) "if myText then myText=nil end" = DOES NOT FIX THINGS Interested in hearing how Lua works here re the answer...

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  • What does "GPL with classpath exception" mean in practice?

    - by Thilo
    Oracle seems to license all their Java-related open source code under the GPL with a classpath exception. From what I understand, this seems to allow to combine these libraries with your own code into products that do not have to be covered by the GPL. How does this work? What are examples of how I can and cannot use these classes? Why was this new license used as opposed to the LGPL, which seems to allow for pretty much the same things, but is better established and understood? What are the differences to the LGPL?

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  • Python service using Upstart on Ubuntu

    - by Soumya Simanta
    I want to create to deploy a heartbeat service (a python script) as a service using Upstart. My understanding is that I've to add a /etc/init/myheartbeatservice.conf with the following contents. # my heartbeat service description "Heartbeat monitor" start on startup stop on shutdown script exec /path/to/my/python/script.py end script My script starts another service process and the monitors the processes and sends heartbeat to an outside server regularly. Are startup and shutdown the correct events ? Also my script create a new thread. I'm assuming I also need to add fork daemon to my conf file? Thanks.

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