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• Best way for a mailing list in Android

  - by Asgard

  I want to create a mailing list function based on an address book included in the application, (NOT the user's contacts) for example I have the addresses [email protected] [email protected] [email protected] [email protected] [email protected] every email addresses, must be associated with a specific section, the various section should be selected through a checkbox list. every section may have more than an email. I have yet created a working email sender that support the simultaneous sending to many email but I don't know what is the best way to store and load the address in the application and how realize this.

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• Best accounting software for freelance/contractor programmer? [closed]

  - by user1352034

  I know this isn't exactly a programming question but I am hoping to find some programmers who freelance or do contractor work in the US. I have started to work on side jobs and have been billing my clients using Paypal. I then would store those records in a Google excel doc but realize this will get out of hand as time goes on and am looking for a good solution. I am no accountant so I am not sure of everything I would need but I am guessing basic invoicing, expenses, reporting, integration with paypal, etc.. Any contractors or freelancers in here could recommend what they use? I have researched a few but would like to hear what other people are using and how it is working out for them. Thanks for your time!

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• My Feelings About Microsoft Surface

  - by Valter Minute

  Advice: read the title carefully, I’m talking about “feelings” and not about advanced technical points proved in a scientific and objective way I still haven’t had a chance to play with a MS Surface tablet (I would love to, of course) and so my ideas just came from reading different articles on the net and MS official statements. Remember also that the MVP motto begins with “Independent” (“Independent Experts. Real World Answers.”) and this is just my humble opinion about a product and a technology. I know that, being an MS MVP you can be called an “MS-fanboy”, I don’t care, I hope that people can appreciate my opinion, even if it doesn’t match theirs. The “Surface” brand can be confusing for techies that knew the “original” surface concept but I think that will be a fresh new brand name for most of the people out there. But marketing department are here to confuse people… so I can understand this “recycle” of an existing name. So Microsoft is entering the hardware arena… for me this is good news. Microsoft developed some nice hardware in the past: the xbox, zune (even if the commercial success was quite limited) and, last but not least, the two arc mices (old and new model) that I use and appreciate. In the past Microsoft worked with OEMs and that model lead to good and bad things. Good thing (for microsoft, at least) is market domination by windows-based PCs that only in the last years has been reduced by the return of the Mac and tablets. Google is also moving in the hardware business with its acquisition of Motorola, and Apple leveraged his control of both the hardware and software sides to develop innovative products. Microsoft can scare OEMs and make them fly away from windows (but where?) or just lead the pack, showing how devices should be designed to compete in the market and bring back some of the innovation that disappeared from recent PC products (look at the shelves of your favorite electronics store and try to distinguish a laptop between the huge mass of anonymous PCs on displays… only Macs shine out there…). Having to compete with MS “official” hardware will force OEMs to develop better product and bring back some real competition in a market that was ruled only by prices (the lower the better even when that means low quality) and no innovative features at all (when it was the last time that a new PC surprised you?). Moving into a new market is a big and risky move, but with Windows 8 Microsoft is playing a crucial move for its future, trying to be back in the innovation run against apple and google. MS can’t afford to fail this time. I saw the new devices (the WinRT and Pro) and the specifications are scarce, misleading and confusing. The first impression is that the device looks like an iPad with a nice keyboard cover… Using “HD” and “full HD” to define display resolution instead of using the real figures and reviving the “ClearType” brand (now dead on Win8 as reported here and missed by people who hate to read text on displays, like myself) without providing clear figures (couldn’t you count those damned pixels?) seems to imply that MS was caught by surprise by apple recent “retina” displays that brought very high definition screens on tablets.Also there are no specifications about the processors used (even if some sources report NVidia Tegra for the ARM tablet and i5 for the x86 one) and expected battery life (a critical point for tablets and the point that killed Windows7 x86 based tablets). Also nothing about the price, and this will be another critical point because other platform out there already provide lots of applications and have a good user base, if MS want to enter this market tablets pricing must be competitive. There are some expansion ports (SD and USB), so no fixed storage model (even if the specs talks about 32-64GB for RT and 128-256GB for pro). I like this and don’t like the apple model where flash memory (that it’s dirt cheap used in thumdrives or SD cards) is as expensive as gold (or cocaine to have a more accurate per gram measurement) when mounted inside a tablet/phone. For big files you’ll be able to use external media and an SD card could be used to store files that don’t require super-fast SSD-like access times, I hope. To be honest I really don’t like the marketplace model and the limitation of Windows RT APIs (no local database? from a company that based a good share of its success on VB6+Access!) and lack of desktop support on the ARM (even if the support is here and has been used to port office). It’s a step toward the consumer market (where competitors are making big money), but may impact enterprise (and embedded) users that may not appreciate Windows 8 new UI or the limitations of the new app model (if you aren’t connected you are dead ). Not having compatibility with the desktop will require brand new applications and honestly made all the CPU cycles spent to convert .NET IL into real machine code in the past like a huge waste of time… as soon as a new processor architecture is supported by Windows you still have to rewrite part of your application (and MS is pushing HTML5+JS and native code more than .NET in my perception). On the other side I believe that the development experience provided by Visual Studio is still miles (or kilometres) ahead of the competition and even the all-uppercase menu of VS2012 hasn’t changed this situation. The new metro UI got mixed reviews. On my side I should say that is very pleasant to use on a touch screen, I like the minimalist design (even if sometimes is too minimal and hides stuff that, in my opinion, should be visible) but I should also say that using it with mouse and keyboard is like trying to pick your nose with boxing gloves… Metro is also very interesting for embedded devices where touch screen usage is quite common and where having an application taking all the screen is the norm. For devices like kiosks, vending machines etc. this kind of UI can be a great selling point. I don’t need a new tablet (to be honest I’m pretty happy with my wife’s iPad and with my PC), but I may change my opinion after having a chance to play a little bit with those new devices and understand what’s hidden under all this mysterious and generic announcements and specifications!

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• The Digital Video Recorder (DVR) is old news, the IP TV is the new generation.

  Its been more than 10 years since the first DVR came out in the US, the idea that you wont be wasting time by programming your video to record a show. Tivo was the first company to bring the idea of a hard disk to store your programs as well as the recurring shows recorded. Its being more than 10 years since that technology advance that improved the live of many families, yet after 10 years the technology hasnt improved much besides all cable and satellite companies provide their own device without...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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• Best practice Java - String array constant and indexing it

  - by Pramod

  For string constants its usual to use a class with final String values. But whats the best practice for storing string array. I want to store different categories in a constant array and everytime a category has been selected, I want to know which category it belongs to and process based on that. Addition : To make it more clear, I have a categories A,B,C,D,E which is a constant array. Whenever a user clicks one of the items(button will have those texts) I should know which item was clicked and do processing on that. I can define an enum(say cat) and everytime do if clickedItem == cat.A .... else if clickedItem = cat.B .... else if .... or even register listeners for each item seperately. But I wanted to know the best practice for doing handling these kind of problems.

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• Be careful when Git suppresses bin Folders

  - by Marko Apfel

  Initial situation Often for Visual Studio projects the typical content of a .gitignore file contains this line bin or [B|b]in It is used to avoid that Git tries to track compile outputs as repository relevant data. Problem But keep in mind: this will also suppress bin folders of additional stuff like frameworks and toolsets. For instance Microsoft.SDKs contains a folder named Bin with a lot of programs Simian contains a folder named bin with the program themselves If you store such artifacts also in the repository - according to the principle of a “self containing project” – you could lost the content in the bin folder! Solution Till yet I don’t have a good idea. So I verify for each new added toolset or framework whether it has or has not such a bin folder. If it has, then I must add this bin folder manually to the repository so that Git track it.

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• ways to program glitch style effects

  - by okkk

  Most tutorials for generating glitch art usually has to do with some form of manipulation of the compression of files. Should my goal instead to replicate the look of these glitches in shaders or is it somehow possible to authentically generate the compression artifacts in real time? Example: This effect which I'm particularly interested is referred to as datamoshing. It does "things" using the p-frames of a video (frames that I think store just the change in pixels). I feel like I need a better understanding of both graphics programming and data-compression.

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• What is the difference between all-static-methods and applying a singleton pattern?

  - by shahensha

  I am making a database to store information about the users of my website (I am using stuts2 and hence Java EE technology). For the database I'll be making a DBManager. Should I apply singleton pattern here or rather make all it's methods static? I will be using this DBManager for basic things like adding, deleting and updating User profiles. Along with it, I'll use for all other querying purposes, for instance to find out whether a username already exists and to get all users for administrative purposes and stuff like that. My questions What is the benefit of singleton pattern? Which thing is most apt here? All static methods or a singleton pattern? Please compare both of them. regards shahensha P.S. The database is bigger than this. Here I am talking only about the tables which I'll be using for storing User Information.

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• Google I/O 2012 - Writing Polished Apps that have Deep Integration into the Google Drive UI

  Google I/O 2012 - Writing Polished Apps that have Deep Integration into the Google Drive UI Mike Procopio, Steve Bazyl We'll go through how to implement complete Drive apps. This is not an introduction to Drive apps, but rather how to build your product into Google Drive, and ensure that the experience is seamless for a user. We will also discuss how to effectively distribute your app in the Chrome Web Store. The example app built in this talk will demonstrate an example use case, but otherwise be production-ready. For all I/O 2012 sessions, go to developers.google.com From: GoogleDevelopers Views: 829 5 ratings Time: 50:59 More in Science & Technology

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• October 2012 Chicago IT Architects Registration Open

  - by Tim Murphy

  This month Tom Benton will be presenting The Platform and Architecture of Windows Store apps in Windows 8.  This is a subject that was requested by attendees over the last few months.  Tom has been presenting this topic in Redmond recently and this should be a great discussion. As usual we are interested in hearing what topics that community would like to see presented.  Leave any ideas in the comments of this post.  If you have a topic you are interested in presenting please contact me through this blog. Please come and join us this month and join in the discussion. Register here. del.icio.us Tags: Chicago Information Technology Architects Group,CITAG,Windows 8,Tom Benton

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• DLNA Media Server and external subtitles

  - by Lobo

  I'm looking DLNA Media Server with the features above: Support most extended video formats. Reproduce external subtitles in client side. Open source or freeware software. USE CASE: DLNA Media server installed and running on my PC. In my PC, I have /home/myprofile/videos directory where I store all my video files. For example, game.of.thrones.s09.e06.mpg and game.of.thrones.s09.e06.srt Turn on my Smart-TV, connect to my DLNA Media Server (installed on my PC) Play game.of.thrones.s09.e06.mpg file and see the subtitles overlapped. Finally, my question: Is there some DLNA Media server that provides that use case?. Thank you.

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• A Tour of the 20 Built-in Apps on Windows 8 and What They Can Do

  - by Chris Hoffman

  Windows 8’s new touch-first Modern interface includes quite a few apps. Before you start looking at the Windows Store to find new apps, take a look at the included apps and what they can do. These apps share a few things in common. They all have a minimal feel that emphasizes content, most have support for live tiles that show updated information on the Start screen, and most push Microsoft’s online services. How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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• Social Engagement: One Size Doesn't Fit Anyone

  - by Mike Stiles

  The key to achieving meaningful social engagement is to know who you’re talking to, know what they like, and consistently deliver that kind of material to them. Every magazine for women knows this. When you read the article titles promoted on their covers, there’s no mistaking for whom that magazine is intended. And yet, confusion still reigns at many brands as to exactly whom they want to talk to, what those people want to hear, and what kind of content they should be creating for them. In most instances, the root problem is brands want to be all things to all people. Their target audience…the world! Good luck with that. It’s 2012, the age of aggregation and custom content delivery. To cope with the modern day barrage of information, people have constructed technological filters so that content they regard as being “for them” is mostly what gets through. Even if your brand is for men and women, young and old, you may want to consider social properties that divide men from women, and young from old. Yes, a man might find something in a women’s magazine that interests him. But that doesn’t mean he’s going to subscribe to it, or buy even one issue. In fact he’ll probably never see the article he’d otherwise be interested in, because in his mind, “This isn’t for me.” It wasn’t packaged for him. News Flash: men and women are different. So it’s a tall order to craft your Facebook Page or Twitter handle to simultaneously exude the motivators for both. The Harris Interactive study “2012 Connecting and Communicating Online: State of Social Media” sheds light on the differing social behaviors and drivers. -65% of women (vs. 59% of men) stay glued to social because they don’t want to miss anything. -25% of women check social when they wake up, before they check email. Only 18% of men check social before e-mail. -95% of women surveyed belong to Facebook vs. 86% of men. -67% of women log in to Facebook once a day or more vs. 54% of men. -Conventional wisdom is Pinterest is mostly a woman-thing, right? That may be true for viewing, but not true for sharing. Men are actually more likely to share on Pinterest than women, 23% to 10%. -The sharing divide extends to YouTube. 68% of women use it mainly for consumption, as opposed to 52% of men. -Women are as likely to have a Twitter account as men, but they’re much less likely to check it often. 54% of women check it once a week compared to 2/3 of men. Obviously, there are some takeaways from this depending on your target. Women don’t want to miss out on anything, so serialized content might be a good idea, right? Promotional posts that lead to a big payoff could keep them hooked. Posts for women might be better served first thing in the morning. If sharing is your goal, maybe male-targeted content is more likely to get those desired shares. And maybe Twitter is a better place to aim your male-targeted content than Facebook. Some grocery stores started experimenting with male-only aisles. The results have been impressive. Why? Because while it’s true men were finding those same items in the store just fine before, now something has been created just for them. They have a place in the store where they belong. Each brand’s strategy and targets are going to differ. The point is…know who you’re talking to, know how they behave, know what they like, and deliver content using any number of social relationship management targeting tools that meets their expectations. If, however, you’re committed to a one-size-fits-all, “our content is for everybody” strategy (or even worse, a “this is what we want to put out and we expect everybody to love it” strategy), your content will miss the mark for more often than it hits. @mikestilesPhoto via stock.schng

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• Resize content for "frame" on .aspx page which draws product content from suppliers' page

  - by zenbike

  I have a retail store site, no online sales, which displays the webpage of our supplier in a "frame" in order to have the most accurate and up to date information for our customers. (example) My issue is that the size of the page it is pulling in doesn't fit in the frame. It looks pretty poor, and part of the content is obscured. Is there a way to scale the content drawn in to the size of the frame? The same site also has an intermittent issue with the Flash banner loading. When it doesn't load, the layout of the header on the page is awful. Any ideas there will also be appreciated.

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• Why would a web site keep my signup information for a limited time only?

  - by Alois Mahdal

  I have just created account at (some web service, well, actually it was Transifex, a localization service). Registration form requested typical things: accont name, e-mail adress, password (twice), and, optional company name and phone number. What confused me was this sentence on confirmation page (the one right after submitting the form): We will store your signup information for 7 days on our server. Can anybody explain what does this mean? What exactly they are referring to by "signup information", if it's something that should be kept for only 7 days? Or is my account going to be destroyed after that time? (Well, that could make sense for some special services, but not for this one.)

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• CodePlex Daily Summary for Sunday, May 11, 2014

  CodePlex Daily Summary for Sunday, May 11, 2014Popular ReleasesGMare: GMare Beta 1.0: Features Added: Overhauled interface Re-wrote most controls and forms Automatic room creation on application open Room properties bar to change various room properties Now able to use a background from a supported Game Maker project file Block instances implemented More instance editing features like multi-Select, cherry pick select, replace, and set position More instance options on the instance list Flexible XML based .gmpx human readable project file format Game...Readable Passphrase Generator: KeePass Plugin 0.13.0: Version 0.13.0 Added "mutators" which add uppercase and numbers to passphrases (to help complying with upper, lower, number complexity rules). Additional API methods which help consuming the generator from 3rd party c# projects. 13,160 words in the default dictionary (~600 more than previous release).CS-Script for Notepad++ (C# intellisense and code execution): Release v1.0.25.0: Release v1.0.25.0 MemberInfo/MethodInfo popup is now positioned properly to fit the screen In MethodInfo popup method signatures are word-wrapped Implemented Debug text value visualizer Pining sub-values from Watch PanelxFunc: xFunc 2.15.3: Added #53TerraMap (Terraria World Map Viewer): TerraMap 1.0.3.14652: Added support for the new Terraria v1.2.4 update. New items, walls, and tiles The setup file will make sure .NET 4 is installed, install TerraMap, create desktop and start menu shortcuts, add a .wld file association, and launch TerraMap. If you prefer the zip file, make sure you have .NET Framework v4.5 installed, then just download and extract the ZIP file, and run TerraMap.exe.R.NET: R.NET 1.5.12: R.NET 1.5.12 is a beta release towards R.NET 1.6. You are encouraged to use 1.5.12 now and give feedback. See the documentation for setup and usage instructions. Main changes for R.NET 1.5.12: The C stack limit was not disabled on Windows. For reasons possibly peculiar to R, this means that non-concurrent access to R from multiple threads was not stable. This is now fixed, with the fix validated with a unit test. Thanks to Odugen, skyguy94, and previously others (evolvedmicrobe, tomasp) fo...CTI Text Encryption: CTI Text Encryption 5.2: Change log: 5.2 - Remove Cut button. - Fixed Reset All button does not reset encrypted text column. - Switch button location between Copy and Paste. - Enable users to use local fonts to display characters of their language correctly. (A font settings file will be saved at the same folder of this program.) 5.1 - Improve encryption process. - Minor UI update. - Version 5.1 is not compatible with older version. 5.0 - Improve encryption algorithm. - Simply inner non-encryption related mec...Aspose for Apache POI: Missing Features of Apache POI SS - v 1.1: Release contain the Missing Features in Apache POI SS SDK in comparison with Aspose.Cells What's New ?Following Examples: Set Print Titles Create Pivot Table Convert Charts to images Formula Calculation Engine Import Data to Worksheets Export Data from Worksheets Tracing Precedents and Dependents Feedback and Suggestions Many more examples are yet to come here. Keep visiting us. Raise your queries and suggest more examples via Aspose Forums or via this social coding site.SEToolbox: SEToolbox 01.029.006 Release 1: Fix to allow keyboard search on load dialog. (type the first few letters of your save) Fixed check for new release. Changed the way ship details are loaded to alleviate load time for worlds with very large ships (100,000+ blocks). Fixed Image importer, was incorrectly listing 'Asteroid' as import option. Minor changes to menus (text and appearance) for clarity and OS consistency. Added in reading of world palette for color dialog editor. WIP on subsystem editor. Can now multiselec...Danmu2Ass —— ??xml/json?Ass: Danmu2Ass 1.1: ????Danmu2Ass?????????xml/json???????ASS????????。?????????????。 ?????.NET Framework 4.0??，??????Niconvert??，????????IronPython 2.7。 1.1????????python????，?????????。 ??????python?????????????，?????”niconvert.py“????exe???????，?????????。 ?????????????????????”niconvert.py“??，??ASS HEADER TPL????????。 ??????.NET 4.0!QuickMon: Version 3.9: First official release of the PowerShell script Collector. Corrective script can now also be PowerShell scripts! There are a couple of internal bugfixes to the core components as well. e.g. Overriding remote host setting now applies to ALL child collectors Main UI app now indicates (in Window title) if there are changes that needs to be saved. Polling frequency can be adjusted by 'slide bar' Note: If you have issues with the new PowerShell script collector please see my post about issu...Tiny Wifi Host: Tiny Wifi Host 3.0.0.0: Tiny Wifi Hotspot Creator (Portable) v3 size: 50KB-140KB New Features: Friendly name for connected devices instead of Mac-Address (Double click selected device to enter friendly name) Saves device names to devices.xml Better error reporting+solutions Warning sound when number of connected devices exceed a certain number. (useful when only certain number of devices must be connected at a time) Many Bug Fixes. NoAudio files does not include connect, disconnect and warning audio to dec...Media Companion: Media Companion MC3.597b: Thank you for being patient, againThere are a number of fixes in place with this release. and some new features added. Most are self explanatory, so check out the options in Preferences. Couple of new Features:* Movie - Allow save Title and Sort Title in Title Case format. * Movie - Allow save fanart.jpg if movie in folder. * TV - display episode source. Get episode source from episode filename. Fixed:* Movie - Added Fill Tags from plot keywords to Batch Rescraper. * Movie - Fixed TMDB s...SimCityPak: SimCityPak 0.3.0.0: Contains several bugfixes, newly identified properties and some UI improvements. Main new features UI overhaul for the main index list: Icons for each different index, including icons for different property files Tooltips for all relevant fields Removed clutter Identified hundreds of additional properties (thanks to MaxisGuillaume) - this should make modding gameplay easierMagick.NET: Magick.NET 6.8.9.002: Magick.NET linked with ImageMagick 6.8.9.0.VidCoder: 1.5.22 Beta: Added ability to burn SRT subtitles. Updated to HandBrake SVN 6169. Added checks to prevent VidCoder from running with a database version newer than it expects. Tooltips in the Advanced Video panel now trigger on the field labels as well as the fields themselves. Fixed updating preset/profile/tune/level settings on changing video encoder. This should resolve some problems with QSV encoding. Fixed tunes and profiles getting set to blank when switching between x264 and x265. Fixed co...NuGet: NuGet 2.8.2: We will be releasing a 2.8.2 version of our own NuGet packages and the NuGet.exe command-line tool. The 2.8.2 release will not include updated VS or WebMatrix extensions. NuGet.Server.Extensions.dll needs to be used alongside NuGet-Signed.exe to provide the NuGet.exe mirror functionality.SmartStore.NET - Free ASP.NET MVC Ecommerce Shopping Cart Solution: SmartStore.NET 2.0.2: SmartStore.NET 2.0.2 is primarily a maintenance release for version 2.0.0, which has been released on April 04 2014. It contains several improvements & important fixes. BugfixesIMPORTANT FIX: Memory leak leads to OutOfMemoryException in application after a while Installation fix: some varchar(MAX) columns get created as varchar(4000). Added a migration to fix the column specs. Installation fix: Setup fails with exception Value cannot be null. Parameter name: stream Bugfix for stock iss...Channel9's Absolute Beginner Series: Windows Phone 8.1: Entire source code for Windows Phone 8.1 Absolute Beginner Series.BIDS Helper: BIDS Helper 1.6.6: This BIDS Helper beta release brings support for SQL Server 2014 and SSDTBI for Visual Studio 2013. (Note that SSDTBI for Visual Studio 2013 is currently unavailable to download from Microsoft. We are releasing BIDS Helper support to help those who downloaded it before it became unavailable, and we will recheck BIDS Helper 2014 is compatible after SSDTBI becomes available to download again.) BIDS Helper 2014 Beta Limitations: SQL Server 2014 support for Biml is still in progress, so this bet...New ProjectsAcutype: Simple program that enables you to practice typing by copying out passages from books.Bass Guitar Trainer: Bass Guitar Trainer is a free application for mastering a bass guitar. Application contains also metronome and drum machineCareer Tools: Career Tools - Track your contacts when searching for a new job A simple tool built in ASP.Net MVC 5EmptyWallGallery: Test EmptyWallGalleryGames Case Project: Final year project at Northumbria University. LINQ To OWIN: LINQ to OWIN is middleware that allows you to code your Katana/OWIN web applications as a set of reactive queries using Rx (Reactive Extensions) for .NET.Orchard ContentExtension: The ContentExtension module, extends the core of the Orchard framework in order to provide a better performance. P4 Compiler: P4 ftwRevolioReader: Browse, read and download books and magazines from Revolio.Sync Email to SharePoint list: This use to sync the exchange mail box to SharePoint listVirtual Radar Server: A .NET/Mono web server that decodes Mode-S & ADS-B messages and displays the location of aircraft on a Google Maps map.??????-??????【??】??????????: ???????????????????,????,????,????,???????,?????,?????.??????。 ?????-?????【??】???????: ???????????????、??,??,??,??,??? ?,??,,??,??,??,??,??,??,????????,??????！ ?????-?????【??】?????????: ???????????????????????????:???????,??????,????,????,????,?????！ ???????-???????【??】???????????: ??????????,??????????????????????,???????????????,?????????????！ ???????-???????【??】???????????: ???????????????????????,?????, ... ????????????,????,????,?????,???????。 ?????-?????【??】?????????: ?????????????,????????,?????,???,???????????,???????????,?????,??????！??????-??????【??】????????: ???????????????????，?????????/?,,???????????,??????????????!??????-??????【??】??????????: ?????????????????????,?????????、??、??、????,??????????,?????????????！??????-??????【??】??????????: ???????????、????、????、??????????,???,?????,???????????????. ??????-??????【??】??????????: ????????????????、?????,????????????????????,????,????,??????。 ??????-??????【??】??????????: ????????????????,?????????????? ??。??????????、????、????、?????????? ???????。 ??????-??????【??】??????????: ??????????????????,???、???!???????,????????????????,????????????,???! ????-????【??】????????: ?????????????,????,???????、???????????,???????????,????,?????,???????。 ?????-?????【??】?????????: ?????????????????、?????、?????、?????、?????、????,???????????,?????,??????！

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• How to derive euler angles from matrix or quaternion?

  - by KlashnikovKid

  Currently working on steering behavior for my AI and just hit a little mathematical bump. I'm in the process of writing an align function, which basically tries to match the agent's orientation with a target orientation. I've got a good source material for implementing this behavior but it uses euler angles to calculate the rotational delta, acceleration, and so on. This is nice, however I store orientation as a quaternion and the math library I'm using doesn't provide any functionality for deriving the euler angles. But if it helps I also have rotational matrices at my disposal too. What would be the best way to decompose the quaternion or rotational matrix to get the euler information? I found one source for decomposing the matrix, but I'm not quite getting the correct results. I'm thinking it may be a difference of column/row ordering of my matrices but then again, math isn't my strong point. http://nghiaho.com/?page_id=846

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• Comparing the Performance of Visual Studio&apos;s Web Reference to a Custom Class

  As developers, we all make assumptions when programming. Perhaps the biggest assumption we make is that those libraries and tools that ship with the .NET Framework are the best way to accomplish a given task. For example, most developers assume that using <a href="http://www.4guysfromrolla.com/articles/120705-1.aspx">ASP.NET's Membership system</a> is the best way to manage user accounts in a website (rather than rolling your own user account store). Similarly, creating a Web Reference to communicate with a <a href="http://www.4guysfromrolla.com/articles/100803-1.aspx">web service</a> generates markup that auto-creates a <i>proxy class</i>, which handles the low-level details of invoking the web service, serializing parameters,

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• Which Shopping Cart is better to run online grocery shop Prestrashop or nopCommerce

  - by Bigmunk

  I have been researching on open source software for an online grocery shop project. I have now narrowed by search to .NET based nopCommerce and the PHP based PrestaShop shopping carts. My plan is to acquire an open source shopping cart and hire a local developer to customize it to our local needs & as per our requirement. I'm now wondering whether I should have a developer start the whole project from scratch, or use an open source software such us PrestaShop or nopCommerce which can then be customized? Note that my store will have thousands of products and services so I want something that can handle up to 5000 products and over. Thanks for your thoughts and advice in advance.

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• DTLoggedExec 1.0.0.2 Released

  - by Davide Mauri

  These last days have been full of work and the next days, up until the end of july, will follow the same ultra-busy scheme. This makes the improvement of DTLoggedExec a little bit slower than what I desire, but nonetheless Friday I’ve been able to relase an updated version of the tool that fixes a bug and add a very convenient option to make even more straightforward the creationg of execution logs: [bugfix] Fixed a bug that prevented loading packages from SSIS Package Store [new] Added support for {filename} placeholder in both Data Flow Profiling and CSV Log Provider The added feature allow to generate DataFlow profile logs and CSV logs that has the same name of the package that generated them, es: DTLoggedExec.exec /FILE:”MyPackage.dtsx” /LPA:"FILE=C:\Log\{filename}_{date}_{time}.dtsCSVLog" Share this post: email it! | bookmark it! | digg it! | reddit! | kick it! | live it!

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• Where should the database and mail parameters be stored in a Symfony2 app?

  - by Songo

  In the default folder structure for a Symfony2 project the database and mail server credentials are stored in parameters.yml file inside ProjectRoot/app/config/parameters.yml with these default values: parameters: database_driver: pdo_mysql database_host: 127.0.0.1 database_port: null database_name: symfony database_user: root database_password: null mailer_transport: smtp mailer_host: 127.0.0.1 mailer_user: null mailer_password: null locale: en secret: ThisTokenIsNotSoSecretChangeIt During development we change these parameters to the development database and mail servers. This file is checked into the source code repository. The problem is when we want to deploy to the production server. We are thinking about automating the deployment process by checking out the project from git and deploy it to the production server. The thing is that our project manager has to manually update these parameters after each update. The production database and mail servers parameters are confidential and only our project manager knows them. I need a way to automate this step and suggestion on where to store the production parameters until they are applied?

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• How to do fluid dynamics like “Where's My Water”?

  - by Edgar Miranda

  There is a game on the app store called "Where's My Water" that is really fun and uses fluid dynamics in its gameplay. You can check out a video of the gameplay... You use your finger to remove dirt from the screen, and then the water just flows to the new area. Anyone knows what engine this was made in and how they where able to get the fluid dynamics in there? I'm using the Corona SDK for mobile development and want to do something similar like this (a game with fluid dynamics).

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• Strange sound issues with Ubuntu 11.10

  - by DNA

  I am having strange issues with sound and volume with Ubuntu 11.10 I've noticed very often, especially when I get my computer out of sleep, it lacks sound even though the volume slider is cranked all the way up. But when I plug my headphones in and then take them out, it seems to kick start my sound back! What gives? What daemon in /etc/int.d needs to be restared with the restart command to fix this? I have the following in my init.d folder /etc/init.d/alsa-restore and /etc/init.d/alsa-store Also, my start up ubuntu sound doesn't play either....

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• Rendering order in an Entity System

  - by Daedalus

  Say I use a basic ES approach, and also inside Systems I hold lists of all entities that Systems are required to process. How do I maintain this list of entities in desired rendering order, i.e. for a dumb 2D RenderingSystem? I saw this discussion, and what they suggest is to do something like Z ordering - what I would probably do is just to store a "layer" int in DrawableComponent and then, inside RenderingSystem, just sort entities by mentioned "layer" whenever the entity list for RenderingSystem changes. They also say we could just delete and recreate the entity whenever we want it on the top, but it seems too inflexible to me. How is this problem usually solved?

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• Situations that require protecting files against tampering when stored on a users computer

  - by Joel

  I'm making a 'Pokémon Storage System' with a Client/Server model and as part of that I was thinking of storing an inventory file on the users computer which I do not wish to be edited except by my program. An alternative to this would be to instead to store the inventory file on the server and control it's editing by sending commands to the server but I was wondering if there are any situations which require files to be stored on a users computer where editing would be undesirable and if so how do you protect the files? I was thinking AES with some sort of checksum?

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