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  • Best practice for using Wcf service by silverlight?

    - by bonefisher
    How would you structure the code for calling a wcf service in silverlight application? Using only-once instanciated wcf service-proxy (aka singleton) and using it across the whole SL app? If so, how did you solve the unsubscribing controls from ws-call-completed event? or creating the wcf service-proxy for each ws-call? Where do you close the proxy then?

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  • Extend legacy site with another server-side programming platform best practice

    - by Andrew Florko
    Company I work for have a site developed 6-8 years ago by a team that was enthusiastic enough to use their own private PHP-based CMS. I have to put dynamic data from one intranet company database on this site in one week: 2-3 pages. I contacted company site administrator and she showed me administrative part - CMS allows only to insert html blocks & manage site map (site is deployed on machine that is inside company & fully accessible & upgradeable). I'm not a PHP-guy & I don't want to dive into legacy hardly-who-ever-heard-about CMS engine I also don't want to contact developers team, 'cos I'm not sure they are still present and capable enough to extend this old days site and it'll take too much time anyway. I am about to deploy helper asp.net site on IIS with 2-3 pages required & refer helper site via iframe from present site. New pages will allow to download some dynamic content from present site also. Is it ok and what are the pitfalls with iframe approach?

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  • Best practice for near reuse of model components?

    - by Chris Knight
    I have a requirement to use a Fund model in my code. It will contain a fund name and fund code. In the interest of reuse I've poked around the package containing the other models used and found an existing Fund model. However the issue here is that, in addition to fund name and code, it also contains an amount. Amount isn't directly relevant in my context. So, do I: 1) Use the existing Fund model as is, ignoring the setters/getters for fund amount. 2) Put a FundDescription interface onto the existing Fund model for accessing only the information I'm interested in. 3) Make a FundDescription base class from which the existing Fund model could now extend 4) Create a whole new seperate model since the two are slightly contextually different

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  • When is C++ covariance the best solution?

    - by Neil Butterworth
    This question was asked here a few hours ago and made me realise that I have never actually used covariant return types in my own code. For those not sure what covariance is, it's allowing the return type of (typically) virtual functions to differ provided the types are part of the same inheritance hierarchy. For example: struct A { virtual ~A(); virtual A * f(); ... }; struct B : public A { virtual B * f(); ... }; The different return types of the two f() functions are said to be covariant. Older versions of C++ required the return types to be the same, so B would have to look like: struct B : public A { virtual A * f(); ... }; So, my question: Does anyone have a real-world example where covariant return types of virtual functions are required, or produce a superior solution to simply returning a base pointer or reference?

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  • Best practice for debug Asserts during Unit testing

    - by Steve Steiner
    Does heavy use of unit tests discourage the use of debug asserts? It seems like a debug assert firing in the code under test implies the unit test shouldn't exist or the debug assert shouldn't exist. "There can be only one" seems like a reasonable principle. Is this the common practice? Or do you disable your debug asserts when unit testing, so they can be around for integration testing? Edit: I updated 'Assert' to debug assert to distinguish an assert in the code under test from the lines in the unit test that check state after the test has run. Also here is an example that I believe shows the dilema: A unit test passes invalid inputs for a protected function that asserts it's inputs are valid. Should the unit test not exist? It's not a public function. Perhaps checking the inputs would kill perf? Or should the assert not exist? The function is protected not private so it should be checking it's inputs for safety.

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  • Best practice- How to team-split a django project while still allowing code reusal

    - by Infinity
    I know this sounds kind of vague, but please let me explain- I'm starting work on a brand new project, it will have two main components: "ACME PRODUCT" (think Gmail, Meebo, etc), and "THE SITE" (help, information, marketing stuff, promotional landing pages, etc lots of marketing-induced cruft). So basically the url /acme/* will load stuff in the uber cool ajaxy application, and every other URI will load stuff in the other site. Problem: "THE SITE" component is out of my hands, and will be handled by a consultants team that will work closely with marketing, And I and my team will work solely on the ACME PRODUCT. Question: How to set up the django project in such a way that we can have: Seperate releases. (They can push new marketing pages and functionality without having to worry about the state of our code. Maybe even separate Subversion "projects") Minimize impact (on our product) of whatever flying-unicorns-hocus-pocus the other team codes into the site. Still allow some code reusal. My main concern is that the ACME product needs to be rock solid, and therefore needs to be somewhat isolated of whatever mistakes/code bloopers the consultants make in their marketing side of the site. How have you handled this? Any ideas? Thanks!

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  • Best practice question

    - by sid_com
    Hello! Which version would you prefer? #!/usr/bin/env perl use warnings; use strict; use 5.010; my $p = 7; # 33 my $prompt = ' : '; my $key = 'very important text'; my $value = 'Hello, World!'; my $length = length $key . $prompt; $p -= $length; Option 1: $key = $key . ' ' x $p . $prompt; Option 2: if ( $p > 0 ) { $key = $key . ' ' x $p . $prompt; } else { $key = $key . $prompt; } say "$key$value"

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  • Where to buy longer PC cables online?

    - by jasondavis
    I am planning to build a new PC soon that will need almost all of it's cables to be extended or longer then noirmal cables to reach including, Longer cables for my 3-4 monitors to reach my PC to where they are mounted on my desk Longer USB cables for mouse and other USB items Probably other longer cables Is there some good online stores to buy longer versions or normal cables used for most PC's?

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  • Where can I buy a good rackmount workstation?

    - by yan bellavance
    We have a product which consists of a GUI program and all the hardware goes in a rack. Our department bought a rackmount server for the first unit, but I dont think this is adequate for applications that use graphics (correct me if I'm wrong - we bought a Dell R710). Could you tell me of a good rackmount workstation we could buy for our product? Also, would it be risky for us to build our own rackmount?

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  • What tft-monitor to buy?

    - by Julian
    hi there, this is not really a programming question, but I can't figure out what tft-monitor to buy. The features I want to have are quite simple: FullHD (1920x1080) height-adjustable made for office use 24" (or better) not too expensive thanks for your answers!

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  • Which hard drive to buy?

    - by caymansoftware
    I have an HP fh607av laptop (dv7 cnd85123hk) and I'd like to replace the hard drive. Which hard drive can I buy? I've never bought or installed a hard drive before (but would like to try). Links would be appreciated!

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  • Measuring Social Media Efforts

    - by David Dorf
    So you're on the bandwagon and you've created a Facebook page, you're tweeting everyday, and maybe you've even got a YouTube channel. Now what? After you put any program in place, you need to measure, set new goals, then execute and this is no different. But how does one measure social media efforts? First, I guess we need some goals. Typical ones might be to acquire customers, engage them, then convert them. So that translates to: Increase Facebook fans and Twitter followers Increase comments/posting and retweets Increase redemption of offers via Facebook and Twitter Counting fans and followers is easy, and tracking the redemption of coupons isn't that hard either, but measuring engagement is a tough one. How do you know whether your fans are reading your posts, and whether your posts have any meaning to them? For Facebook, the fan page administrator has access to analytics called Facebook Insights. There you can check weekly metrics such as total fans, new fans, lost fans, demographics of fans, number of postings, numbers clicks, etc. Not nearly as comprehensive as Google Analytics, but well on its way. For Twitter, getting information is a little tougher. Again, its easy to track followers and you can use tools like TweetMeme to encourage and track retweets. An interesting website called WeFollow tries to measure influence for certain topics. For example, the top three influencers for the topic "retail" are retailweek, retailwire, and retailerdaily. Other notables are #10 BestBuy, #11 GapOfficial, #12 JeffPR, and #17 OracleRetail. I assume influence is calculated based on number of followers, number of retweets, frequency of tweets, and perhaps depth of dialogs. If you want to get serious about monitoring and measuring social marketing efforts, you'd be wise to invest in a strong tool. Several are listed on this wiki, including big ones like Radian6, Nielsen, Omniture, and Buzzient. Buzzient might be particularly interesting because its integrated with Oracle CRM OnDemand -- see the demo. As always, I'm interested in hearing how others approach goal setting and monitoring of social media efforts, so feel free to post comments.

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  • The 50 Best Ways to Disable Built-in Windows Features You Don’t Want

    - by The Geek
    Over the years, we’ve written about loads of ways to disable features, tweak things that don’t work the way you want, and remove other things entirely. Here’s the list of the 50 best ways to do just that. Just in case you missed some of our recent roundup articles, here’s a couple of roundups of our very best articles for you to check out: The 50 Best Registry Hacks that Make Windows Better The 20 Best How-To Geek Explainer Topics for 2010 The 20 Best Windows Tweaks that Still Work in Windows 7 The 50 Best How-To Geek Windows Articles of 2010 The 10 Cleverest Ways to Use Linux to Fix Your Windows PC If you’ve already been through those, keep reading for how to disable loads of Windows features you might not want Latest Features How-To Geek ETC How to Upgrade Windows 7 Easily (And Understand Whether You Should) The How-To Geek Guide to Audio Editing: Basic Noise Removal Install a Wii Game Loader for Easy Backups and Fast Load Times The Best of CES (Consumer Electronics Show) in 2011 The Worst of CES (Consumer Electronics Show) in 2011 HTG Projects: How to Create Your Own Custom Papercraft Toy Calvin and Hobbes Mix It Up in this Fight Club Parody [Video] Choose from 124 Awesome HTML5 Games to Play at Mozilla Labs Game On Gallery Google Translate for Android Updates to Include Conversation Mode and More Move Your Photoshop Scratch Disk for Improved Performance Winter Storm Clouds on the Horizon Wallpaper Existential Angry Birds [Video]

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  • What are industry standards and professional best practices in network hosts naming? [closed]

    - by Ivan
    Possible Duplicate: Naming convention for computers It seems an important and difficult dilemma for me how to name network hosts (routers, servers (while a server can be a router and host diverse services at the same time), virtual machines (while they host important services and can migrate), workstations and notebooks (using pc-username is not the best idea as users may change), printers & MFUs, surveillance IP cameras, etc). Are there known and accepted best practices for this task? Excuse me if there already was a similar question here (I think it probably was), I haven't found it.

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  • Which equipments should I buy for a laboratory?

    - by Hossein Margani
    Hi every body! I want to create a network of computers for a network laboratory in a university. I want to install windows on them. What is the fastest way for doing this and also which equipments I should buy for this laboratory. I also want to use this network as a computer laboratory, operating system laboratory, programming laboratory, microprocessor laboratory, computer architecture laboratory and software engineering laboratory. I should emphasis that this is a scholastic laboratory. Thanks.

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  • Kindly guide me to buy a new laptop [on hold]

    - by Its me 007
    I am from India. I want to buy a new laptop. Shortlisted few but confused between which processor,Chip set and Graphics will be the best suited for my requirements. NOTE: NOT ABLE TO POST THE LINKS YOU WILL HAVE TO COPY PASTE IT. SORRY. 1) HP Pavilion 15-N004TX - 4th Gen CI5 - 4200U/4GB RAM/500 GB HDD/ 1GB Radeon Graphic - Rs 39990 www.homeshop18.com/hp-pavilion-15-n004tx-laptop-4th-gen-intel-core-i5-4200u-4gb-500gb-15-6-linux-silver-black/computers-tablets/laptops/product:30989197/cid:16317/ 2) Lenovo Essential G510 (59-398452) - 4th Gen Ci5 4200M/ 4GB/ 500 GB/Win8/2GB Graph ATI Sunpro 8570 - Rs 44969 www.flipkart.com/lenovo-essential-g510-59-398452-laptop-4th-gen-ci5-4gb-500gb-win8-2gb-graph/p/itmdp26eprwf5k5v?gclid=CMnh99GA2LoCFaRU4godNiUAGQ&semcmpid=sem_7847244212_laptopsnew_goog&tgi=sem%2C1%2CG%2C7847244212%2Cg%2Csearch%2C%2C24387103114%2C1t1%2Cb%2C%2Blenovo+%2Bg510%2F59+%2B398452%2Cc%2C%2C%2C%2C%2C%2C%2C2 3) HP Pavilion G6-2303TX Laptop (3rd Gen Ci5 3230M/ 4GB/ 500GB/ DOS/ 1GB Graph) - Rs 40500 www.flipkart.com/hp-pavilion-g6-2303tx-laptop-3rd-gen-ci5-4gb-500gb-dos-1gb-graph/p/itmdm6yzh4gr4cxd?pid=COMDM6YHWMGDRDEZ&ref=1d2b85fc-a03d-4c7d-844b-ec9e8dc95a81 4) HP Pavilion 15-E039TX Laptop (3rd Gen Ci5 3230M/ 4GB/ 1TB/ Win8/ 2GB Graph) - Rs 46690 www.flipkart.com/hp-pavilion-15-e039tx-laptop-3rd-gen-ci5-4gb-1tb-win8-2gb-graph/p/itmdn4d9wykhdcpz?pid=COMDN4CZGFMGJNTN&ref=1d2b85fc-a03d-4c7d-844b-ec9e8dc95a81 Now I am confused between: Which Processor and chipset is best? How much graphic card is enough? (Not a gamer) Is any of this laptop future proof i.e. it should at least support upcoming latest programming softwares which eats more processor and memory. Laptop will be mainly used for multiprocessing.It should be at least capable for following: Visual Studio 2012 and the upcoming versions for at least 4 years SQL server 2008 R2 and above Sharepoint Blend Photoshop Kindly suggest. If anyone know any good laptop with good configuration in the 50k budget kindly suggest. Thanks in advance.

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  • Best Practices to Accelerate Oracle VM Server Deployments

    - by Honglin Su
    IOUG (Independent Oracle User Group) Virtualization SIG is hosting the webcast on the best practices of Oracle VM server virtualization. July 11, 2012 - Best Practices to Accelerate Oracle VM Server on SPARC Deployments. Register here. To learn the best practices on Oracle VM Server for x86,  watch the session replay here. For more white paper about best practices, visit Oracle VM OTN page here.

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  • which android device to buy?

    - by Jai
    Hi All, I am developing apps for android and going to buy a new android phone. I thought of HTC Legend/Desire. Please let me know what to buy. My need is use that as a phone and also deploy and test the android apps am developping. Thanks in advance.

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  • Have it fixed or buy a new one?

    - by Workshop Alex
    My dual-monitor system has just become a single-monitor system again when the older monitor decided it would be nice to just turn to black. It's a Samsung LCD monitor and is over three years old. Not sure if the warranty is still valid but I just wonder what option would me more efficient: 1) Have the monitor fixed for a small amount. 2) Buy a new monitor for a slightly bigger amount. When monitors were still expensive, I wouldn't doubt about this and would just have my monitor repaired. But prices are so low nowadays, (and repairs are expensive) that I wonder if it's worth the trouble... Of course, I'm in no hurry since I still have another monitor. It's just that I liked the dual-monitor setup. Solved! Just ordered a new monitor. A Samsumg Syncmaster T260HD 25,5". Much more than it would cost me if I just had my old one repaired but I noticed that this one has a build-in TV tuner, plus speakers. It's way more expensive than a repair, but it's worth the additional value it provides.

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  • Should I reuse variables?

    - by IAdapter
    Should I reuse variables? I know that many best practice say you should not do it, however later when different developer is debugging the code and have 3 variables that look a like and only difference is that they are created in different places in the code he might be confused. unit-testing is a great example of this. However I do know that best practice are most of the time against it. For example they say not to "overide" method parameters. Best practice are even are against nulling the previous variables (in Java there is Sonar that has warning when you assign null to variable that you don't need to do it to call garbage collector since Java6. you cant always control what warnings are turned off, most of the time the default is on)

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  • The University with the best Computer Science degree?

    - by Shinnok
    Which University provides the best Computer Science degree in your opinion(non US Universities welcomed too)? I do realize that you most probably didn't attend more then one University so you can't really provide a truly insightful opinion on several institutions, but what you can do instead, is describe the one you attended and outline it's strengths and weaknesses. What do i mean by the best is essentially the University that upon graduation and given a subject's assumed reasonable level of passion and interest in the field, one can trust upon the fact he was at least exposed to the best and most deep, correct and up to date courses on Programming, Operating Systems, Internet and Computer Technology overall. We have all heard of recent horror stories in Computer Science teaching, thus an exposure the best of the best, essentially the University you would grant your children to if they were to be interested into this field, would be a great thing.

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  • Which SSL certificate to buy [closed]

    - by Sparsh Gupta
    I am reading several notes on SSL certificates and comparison. What matters to me the most is speed. I can read that encryption is same with all different certificates available but I was wondering if there is any difference in the performance of the website with different certificates involved. I am ofcourse interested in end to end response times and I wonder if the type of encryption or number of certificates required as Chain Certificates makes a difference in speed. I dont really care for cost but looking for a good SSL certificate which ideally gives me absolutely no pain and best performance. Recommendations?

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