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  • Different ways of solving problems in code.

    - by Erin
    I now program in C# for a living but before that I programmed in python for 5 years. I have found that I write C# very differently than most examples I see on the web. Rather then writing things like: foreach (string bar in foo) { //bar has something doen to it here } I write code that looks like this. foo.ForEach( c => c.someActionhere() ) Or var result = foo.Select( c => { //Some code here to transform the item. }).ToList(); I think my using code like above came from my love of map and reduce in python - while not exactly the same thing, the concepts are close. Now it's time for my question. What concepts do you take and move with you from language to language; that allow you to solve a problem in a way that is not the normal accepted solution in that language?

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  • Getting Started on Isometric Board Game port

    - by Jehosephat
    I have developed a (off-line) board game that I would like to translate to an online/social game in an isometric grid perspective. My background is in .NET web development, so I'm very comfortable with C#, HTML, jQuery/javascript. Still getting my feet wet with HTML5. I have familiarity with Flash, but I haven't worked with it in years. I'm also interested in working with Azure for hosting the back-end. Ultimately I'd like this game to have persistent leaderboard/achievements and therefore be able to log in through FB and Kong and the like. Obviously, I'm not looking for 'here's exactly how to do all of this'. But I would love some opinions on where to start, particularly given my background and goals. Would be happy to share more details if it makes answering easier! Thanks!

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  • MERGE gives better OUTPUT options

    - by Rob Farley
    MERGE is very cool. There are a ton of useful things about it – mostly around the fact that you can implement a ton of change against a table all at once. This is great for data warehousing, handling changes made to relational databases by applications, all kinds of things. One of the more subtle things about MERGE is the power of the OUTPUT clause. Useful for logging.   If you’re not familiar with the OUTPUT clause, you really should be – it basically makes your DML (INSERT/DELETE/UPDATE/MERGE) statement return data back to you. This is a great way of returning identity values from INSERT commands (so much better than SCOPE_IDENTITY() or the older (and worse) @@IDENTITY, because you can get lots of rows back). You can even use it to grab default values that are set using non-deterministic functions like NEWID() – things you couldn’t normally get back without running another query (or with a trigger, I guess, but that’s not pretty). That inserted table I referenced – that’s part of the ‘behind-the-scenes’ work that goes on with all DML changes. When you insert data, this internal table called inserted gets populated with rows, and then used to inflict the appropriate inserts on the various structures that store data (HoBTs – the Heaps or B-Trees used to store data as tables and indexes). When deleting, the deleted table gets populated. Updates get a matching row in both tables (although this doesn’t mean that an update is a delete followed by an inserted, it’s just the way it’s handled with these tables). These tables can be referenced by the OUTPUT clause, which can show you the before and after for any DML statement. Useful stuff. MERGE is slightly different though. With MERGE, you get a mix of entries. Your MERGE statement might be doing some INSERTs, some UPDATEs and some DELETEs. One of the most common examples of MERGE is to perform an UPSERT command, where data is updated if it already exists, or inserted if it’s new. And in a single operation too. Here, you can see the usefulness of the deleted and inserted tables, which clearly reflect the type of operation (but then again, MERGE lets you use an extra column called $action to show this). (Don’t worry about the fact that I turned on IDENTITY_INSERT, that’s just so that I could insert the values) One of the things I love about MERGE is that it feels almost cursor-like – the UPDATE bit feels like “WHERE CURRENT OF …”, and the INSERT bit feels like a single-row insert. And it is – but into the inserted and deleted tables. The operations to maintain the HoBTs are still done using the whole set of changes, which is very cool. And $action – very convenient. But as cool as $action is, that’s not the point of my post. If it were, I hope you’d all be disappointed, as you can’t really go near the MERGE statement without learning about it. The subtle thing that I love about MERGE with OUTPUT is that you can hook into more than just inserted and deleted. Did you notice in my earlier query that my source table had a ‘src’ field, that wasn’t used in the insert? Normally, this would be somewhat pointless to include in my source query. But with MERGE, I can put that in the OUTPUT clause. This is useful stuff, particularly when you’re needing to audit the changes. Suppose your query involved consolidating data from a number of sources, but you didn’t need to insert that into the actual table, just into a table for audit. This is now very doable, either using the INTO clause of OUTPUT, or surrounding the whole MERGE statement in brackets (parentheses if you’re American) and using a regular INSERT statement. This is also doable if you’re using MERGE to just do INSERTs. In case you hadn’t realised, you can use MERGE in place of an INSERT statement. It’s just like the UPSERT-style statement we’ve just seen, except that we want nothing to match. That’s easy to do, we just use ON 1=2. This is obviously more convoluted than a straight INSERT. And it’s slightly more effort for the database engine too. But, if you want the extra audit capabilities, the ability to hook into the other source columns is definitely useful. Oh, and before people ask if you can also hook into the target table’s columns... Yes, of course. That’s what deleted and inserted give you.

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  • magic trackpad - Ubuntu

    - by UbuntuGuy
    I've been using a mac in my job for a while now. The only feature i like about it above my ubuntu (on an hp) is the trackpad. I love doing the strokes to move between different files. It really makes things quicker. Is it possible to imitate this feature on my ubuntu laptop. (like maybe there might be something that utilizes my mouse pad on the laptop, as well as the scroller) If that is impossible or doesn't exist then can i set up a magic trackpad to ubuntu on my hp.

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  • Calling all developers building ASP.NET applications

    - by Laila Lotfi
    We know that developers building desktop apps have to contend with memory management issues, and we’d like to learn more about the memory challenges ASP.NET developers are facing. To be more specific, we’re carrying out some exploratory research leading into the next phase of development on ANTS Memory Profiler, and our development team would love to speak to developers building ASP.NET applications. You don’t need to have ever used ANTS profiler – this will be a more general conversation about: - your current site architecture, and how you manage the memory requirements of your applications on your back-end servers and web services. - how you currently diagnose memory leaks and where you do this (production server, or during testing phase, or if you normally manage to get them all during the local development). - what specific memory problems you’ve experienced – if any. Of course, we’ll compensate you for your time with a $50 Amazon voucher (or equivalent in other currencies), and our development team’s undying gratitude. If you’d like to participate, please just drop me a line on [email protected].

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  • Design patterns for effects between actors and technology

    - by changelog
    I'm working on my first game, and taking the opportunity to brush up my C++ (I want to make as much of it as portable as I can.) Whilst working on the technology tree and how it affects actors (spaceships, planets, crew, buildings, etc) I can't find a pattern that decouples these entities enough to feel like a clean approach. Just as an idea, here's the type of effects these actors can have on one another (and techs too) An engineer inside a spaceship boosts its shield A hero in a spaceship in a fleet increases morale A technology improves spaceships' travel distance A building in a planet improves its production The best I can come up with is the Observer pattern, and basically manage it more or less manually (when a crew member enters a spaceship, fire the event; when a new building is built in a planet, fire the event, etc etc.) but it seems to be too tightly coupled to me. I would love to get some ideas about how to approach this better.

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  • What is the best website width? [on hold]

    - by Salvis Dišlers
    What is the best website width? I can't decide between 1200px max-width and 1236px....with 300px sidebar as enough or 320px? I personally like wide website, my current website is 1236px; but I hear it's considered very wide for eyesight and all those gadgets keeping in mind... The website is for reading - I mean, mostly articles with around 3000 words on average per page, so no matter - whether they look wide, whether they love to scroll down :) Also - what to decide about Banner size / sidebar? Probably the 300px I can put a 300px banner, but on 320px sidebar I could put 336px banner, if necessary...

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  • UI Controls Copyright

    - by user3692481
    I'm developing a cross-platform computer software. It will run on Windows and Mac OS X. For user experience reasons, I want it to have the same graphic on both platforms. I really like the Mac OS UI controls and I'd love to see them on the Windows version too. My question is: is it legal to "copy" UI components? I'm not going to copy icons or reproduce an existing Apple software. I would only "copy" some standard UI components such as Buttons, Progressbars, TreeView, ListView etc. You can see them here: http://i.stack.imgur.com/9YzYQ.png http://i.stack.imgur.com/MWR6B.jpg IMHO, they should not be copyrighted for two reasons: They are implicitly used by any Mac OS software There are a lot of Apps (for Windows and even Web-Apps) that are "inspired by" the Mac graphic. Am I right?

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  • Use Outlook password for website verification

    - by Jack Lockyer
    I am currently building an internal employee dashboard for our global company (it is hosted on an external website for logistical reasons) I'd like (need) to password protect the page as we will be displaying sensitive information, my question is, is it possible to integrate with Outlook passwords? We have over 350 staff all of whom use outlook on a daily basis, I'd love for the website to check whether the visitor is logged into Outlook and if they're not, prompt them to log in. Is it possible?? If it is I'll get is developed straight away.

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  • Git bug branching convention

    - by kisplit
    I've been following the successful Git branching model guide for most of my development. I still wonder if the way I handle bug tickets is correct. My current workflow: Once I accept a bug ticket I will do a git checkout -b bug/{ticket_number}, create a single commit as a fix and then checkout develop and do a git merge --no-ff. I'd love to hear from the experiences of others whether or not I am abusing the --no-ff option in this instance. If I am, could someone suggest a better approach?

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  • Desktop Fun: Fantasy Warriors Wallpaper Collection

    - by Asian Angel
    Whether they are defending their homelands and the innocent, seeking fame and fortune, or out to conquer and plunder these fantasy warriors will add a nice bit of adventure to your desktop. Get ready to journey into other realms with our Fantasy Warriors Wallpaper collection Latest Features How-To Geek ETC Internet Explorer 9 RC Now Available: Here’s the Most Interesting New Stuff Here’s a Super Simple Trick to Defeating Fake Anti-Virus Malware How to Change the Default Application for Android Tasks Stop Believing TV’s Lies: The Real Truth About "Enhancing" Images The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines Four Awesome TRON Legacy Themes for Chrome and Iron Anger is Illogical – Old School Style Instructional Video [Star Trek Mashup] Get the Old Microsoft Paint UI Back in Windows 7 Relax and Sleep Is a Soothing Sleep Timer Google Rolls Out Two-Factor Authentication Peaceful Early Morning by the Riverside Wallpaper

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  • User eXperience

    - by Daniel Moth
    The last few months I have been spending a lot of time designing (and help design) the developer experience for the areas I contribute to (in future versions of Visual Studio). As a technical person who defines feature sets, it is easy to get engulfed in the pure technical side of things and ignore the details that ultimately make users "love" using the product to achieve their goal, instead of just "having to use" it. Engaging in UX design helps me escape that trap. In case you are also interested in the UX side of development, I thought I'd share an interesting site I came across: UX myths. In particular, I recommend reading myths 9, 10, 12, 13, 14, 15 and 21. Let me know if there are other UX resources you recommend… Comments about this post welcome at the original blog.

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  • A few words about Micro-Benchmarks

    Its been a long time since I included my this discussion is only approximately correct disclaimer so Ill just preface it here.  In the interest of space and clarity, this discussion is only approximately correct.  OK, now we can move on I love micro-benchmarks. Really.  I rely on micro-benchmarks to help me understand what is going on in my system on a day to day or even build to build basis.  Understanding which micro-benchmarks are really vital is essential to keeping your...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • How to get feedback on mobile application

    - by Jason Crosby
    I am relatively new to programming. I have been programming with Java and Android for about 2 years now and just recently released my first app to the Google Play app store. I have passed the word on to everyone I know and posted a few times on Facebook about it. But I am not really seeing anyone install them. I love to code I'm not looking to have the next big time app, but it would be nice to get some installs and feedback/ratings so I can get an idea of how well its doing and if there are any fixes or improvements I can make. I thought about doing an AdMob campaign a couple times here and there at about $10 to $20 per day. But I'm not sure if that will generate any kind of worthwhile feedback. What other things could I be doing in order to get some feedback on my application? Thanks in advance for your help and suggestions.

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  • Apple Cinema Display 23" and grub

    - by Joshua Pruitt
    As per the title, I'm running my display on an older 23" Apple Cinema Display (because I still love it, darn it). I'm pushing it with an ATI Radeon DVI dual-link PCIe card. It works just fine, except GRUB doesn't seem able to push out the 1920x1200 pixel resolution needed in order to show me a boot menu! So..., I keep a smaller second monitor connected as the primary display so that I can see the boot menu and boot the system (I don't use that display once booted). This is a goofy work-around, and I'd like to just use my single display exclusively to boot the machine. I found some grub codes for higher resolutions, but not for 1920x1200. Is it capable of this? Did I just miss it? Thanks in advance!!!

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  • Where to start learning OpenGL with C++?

    - by NERDcustard
    I'm 16 years old and my name is Norbert. I have learnt C++ and made some cool text based games and such but I would love to start graphic's programming. I'm a decent artiest (I will have some of my work bellow) I know the base of C++ but I really would like to get into OpenGL. I need someone to show me some good tutorials for OpenGl with C++ so I can really get into game dev. My goal is to be able to program a simple 2d game by the end of the year and I have lots of time to do so. I'm en-rolled in a game dev next year and really need some help with starting off. http://imgur.com/QZjKX http://imgur.com/3CZy7

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  • Anyone used Jenkins with Sparkle (the cocoa app update framework)?

    - by Amy Worrall
    Pushing new Sparkle releases of our internal apps is a pain. I have to make the build, make the release notes file, sign the .zip with the private key, and add a new entry to the appcast file tying everything together. I'd love it if Jenkins could help: use the commit messages for the release notes, and automatically do the rest of it. Should I be looking at writing a new Jenkins plugin, or using shell scripting, or is there something already that will do what I want? (A quick Google didn't find anything.) I'm new to Jenkins, and am still trying to get a feel for what it can do. Do any other maintainers of Cocoa apps have any tips?

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  • How to model interentity membership in entity-component architecture?

    - by croxis
    I'm falling in love with simple grace of entity-component design, although I still have issues breaking from MVC and OOP practices. Some of my game entities have membership relationships with each other (ex: a player is a member of a city, a city is a member of a nation), and I am unsure on the best way to implement it. My initial reaction is to have a a MemberOfCity component that points to the appropriate city component, but components are suppose to have no references to each other. My other option is to have a System do it, but that would require the system to persist data outside of a component. Is there a clean way to do this in an entity-component design, or am I trying to use a hammer on a screw and should use a hybrid/another approach?

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  • Ask the Readers: Do You Prefer Print Magazines, Online Articles, or Both for Your Important Geeky Reading Needs?

    - by Asian Angel
    We all love to read information about new computer hardware, gadgets, software, and how-to articles to help us and satisfy our need for geeky knowledge. This week we would like to know if you prefer subscribing to/buying print magazines, doing all of your reading online, or using a combination of both Latest Features How-To Geek ETC RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin The How-To Geek Video Guide to Using Windows 7 Speech Recognition How To Create Your Own Custom ASCII Art from Any Image Google Cloud Print Extension Lets You Print Doc/PDF/Txt Files from Web Sites Hack a $10 Flashlight into an Ultra-bright Premium One Firefox Personas Arrive on Firefox Mobile Focus Booster Is a Sleek and Free Productivity Timer What is the Internet? From the Today Show January 1994 [Historical Video] Take Screenshots and Edit Them in Chrome and Iron Using Aviary Screen Capture

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  • Other SCOM users at SQLSaturday #65 Vancouver?

    - by merrillaldrich
    After a little hair-graying fun around passport renewal and family logistics, it looks like I'll be at the Vancouver SQLSaturday ! I am pumped. (I was entirely convinced they would call it "SQLSaturd' eh?" and I'm frankly a little disappointed about the name... :-) I'm on the tail end of a three-month deployment of System Center Operations Manager with the SQL management pack - if you are a DBA and SCOM user, too, I'd love to meet you and talk shop at the SQLSaturday event. Please drop me a line...(read more)

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  • What is wrong with Unix/linux

    - by John Smith
    This is a genuine question motivated by Ideal Operating System When I moved from DOS to Linux in the late 90s it was an eye opener for me. Long file names, arbitrarily many extensions etc... Now I look at Linux and Unix and see all sorts of issues. Here are things I see which could be fixed. Too much depends on root, and rootly powers cannot be voluntarily delegated over several users. (I would love to give up my power to manager printers and delegate the job to another account) File permissions are very limited, and there is not much metadata to go with files. The "everything is a file" metaphor is not true, Plan 9 gets it right(er).

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  • Convert Your Workspace to Standing Height for $22

    - by Jason Fitzpatrick
    If you’d love to try out a standing workstation but you don’t want to shell out $$$ to buy or build one, this simple $22 project will raise up your workspace surface on the cheap. All you need is a LACK side table, some shelf brackets, a shelf, and some screws. The side table goes on your desk, the monitors go on the side table, and the keyboard and mouse go on the shelf (mounted to the brackets that have been positioned at the perfect height for your forearms). Hit up the link below for more pictures, tips, and a downloadable build guide. IKEA Standing Desk for $22 [via Unpluggd] How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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  • Firefox really slows down my computer

    - by user199208
    I love Firefox; it has a special place in my heart. However, using the default Firefox in Ubuntu eventually causes my computer to freeze and crash. Nothing more to the problem, just the performance of Firefox really sucks, therefor causing a system-wide freeze. How do I know this? I use Google Chrome mostly, and other programs. None of them ever made my computer freeze. Is it an Update problem? If so, can I install a different version of Firefox from Mozilla.com? What's the deal here?

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  • Leaked Gmail for Android Version 4.2 Features Pinch-to-Zoom and Swipe-to-Delete [Video]

    - by Jason Fitzpatrick
    If you love keeping an eye at what’s around the corner, this video showcases some of the new features in Gmail for Android–there’s even an APK for those adventurous readers who want to try it. Courtesy of AndroidPolice, we’re treated to the above video showcasing Gmail for Android’s new look and features–including pinch-to-zoom and a swipe-to-delete (or archive), similar to the notification dismissal in Android Jelly Bean. If you’re up for a little unofficial app installation, you can even hit up the link below to check out the full writeup and grab a copy of the unofficial installer. Exclusive: Upcoming Gmail For Android 4.2 Will Finally Have Pinch-To-Zoom, Swipeaway Delete/Archive [AndroidZoom] HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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  • Oct 5th DevReach in Sofia, Bulgaria

    - by Sahil Malik
    SharePoint 2010 Training: more information I will be at DevReach, my top favorite conference on Oct 5th. I have been visiting Devreach since it’s very inception. I don’t do a lot of conferences, just 3 or 4 a year. I am super duper picky about what conferences I attend. One of the key reasons I love visiting DevReach is the audience quality. The developers in Bulgaria are shockingly intelligent. I have always enjoyed the extremely intelligent questions and conversations I get to engage in at DevReach. And Sofia is an amazing city to top it all. My sessions this year are as follows, Day 2, 11:30 - 12:30 Architecture SPvNext – A Look At All the Exciting And New Features In SharePoint Day 2, 09:00 - 10:00 Architecture Read full article ....

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