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  • LINQ: Enhancing Distinct With The PredicateEqualityComparer

    - by Paulo Morgado
    Today I was writing a LINQ query and I needed to select distinct values based on a comparison criteria. Fortunately, LINQ’s Distinct method allows an equality comparer to be supplied, but, unfortunately, sometimes, this means having to write custom equality comparer. Because I was going to need more than one equality comparer for this set of tools I was building, I decided to build a generic equality comparer that would just take a custom predicate. Something like this: public class PredicateEqualityComparer<T> : EqualityComparer<T> { private Func<T, T, bool> predicate; public PredicateEqualityComparer(Func<T, T, bool> predicate) : base() { this.predicate = predicate; } public override bool Equals(T x, T y) { if (x != null) { return ((y != null) && this.predicate(x, y)); } if (y != null) { return false; } return true; } public override int GetHashCode(T obj) { if (obj == null) { return 0; } return obj.GetHashCode(); } } Now I can write code like this: .Distinct(new PredicateEqualityComparer<Item>((x, y) => x.Field == y.Field)) But I felt that I’d lost all conciseness and expressiveness of LINQ and it doesn’t support anonymous types. So I came up with another Distinct extension method: public static IEnumerable<TSource> Distinct<TSource>(this IEnumerable<TSource> source, Func<TSource, TSource, bool> predicate) { return source.Distinct(new PredicateEqualityComparer<TSource>(predicate)); } And the query is now written like this: .Distinct((x, y) => x.Field == y.Field) Looks a lot better, doesn’t it?

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  • Unable to install updates on 14.04 LTS

    - by Mike
    I have been getting update notifications for a few weeks now but whenever I attempt to install them I get this message; The upgrade needs a total of 74.6 M free space on disk '/boot'. Please free at least an additional 29.8 M of disk space on '/boot'. Empty your trash and remove temporary packages of former installations using 'sudo apt-get clean'. First of all I don't have permission to access /boot (don't know why as its a standalone machine and i'm the only user). Secondly, I emptied the trash; Thirdly, I launched Terminal and entered sudo apt-get clean I was a asked for a sudo password. I entered my system password. Re-entered sudo apt-get clean. The cursor stopped blinking - I assumed it was doing it's "thing". I let it go for about 10 minutes then exited Terminal. Tried to install the updates but just got the same message. Is there something i'm ignorant of? This is the output I get from the command df -h and I have no idea what it all means! @Tim, What's bash and why am I denied access to fstab and /boot? mike@mike-MS-7800:~$ /etc/fstab bash: /etc/fstab: Permission denied mike@mike-MS-7800:~$ df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/ubuntu--vg-root 913G 11G 856G 2% / none 4.0K 0 4.0K 0% /sys/fs/cgroup udev 1.7G 4.0K 1.7G 1% /dev tmpfs 335M 1.6M 333M 1% /run none 5.0M 4.0K 5.0M 1% /run/lock none 1.7G 14M 1.7G 1% /run/shm none 100M 52K 100M 1% /run/user /dev/sda2 237M 182M 43M 81% /boot /dev/sda1 487M 3.4M 483M 1% /boot/efi /dev/sr1 31M 31M 0 100% /media/mike/Optus Mobile mike@mike-MS-7800:~$ I ran this from the terminal and all is now working. dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge

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  • Is “Application Programming Interface” a bad name?

    - by Taylor Hawkes
    Application programming interface seems like a bad name for what it is. Is there a reason it was named such? I understand that people used to call them Advanced Programming Interfaces and then renamed to Application Programming Interface. Is that why it is poorly named? Why is it not named Application (to) Programmer Interface. I guess I'm just confused of the meaning behind that name? I write more about my confusion around the name here: BREAKING DOWN THE WORD “APPLICATION PROGRAMMING INTERFACE” This is a very confusing word. We mostly understand what the word Interface means, but “Application Programming”, what even is that. Honestly I'm confused. Is that suppose to be two words like “Application”, “Programming” and then the “Interface” is suppose to mean between the two? Like would a “Computer Human Interface” be an interface between a “Computer” and a “Human” (monitor , keyboard, mouse ) or is a “Computer Human” a real thing - perhaps the terminator. So a CHI is our boy Kyle Reese who is the only way we are able to work with the computer human. I think more likely “Application Programming Interface” was simply poorly named and doesn't really make sense. It was originally called an “Advanced Programming Interface” , but perhaps being a bit to ostentatious merged into the now wildly accepted “Application Programming Interface”. So now, not wanting to change an acronym has confused the living heck out everyone.... Any thoughts or clarification would be great, I'm giving a lecture on this topic in a month, so I would prefer not to BS my way through it.

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  • TechEd 2012: Office, SharePoint And More Office

    - by Tim Murphy
    I haven’t spent any time looking at Office 365 up to this point.  I met Donovan Follette on the flight down from Chicago.  I also got to spend some time discussing the product offerings with him at the TechExpo and that sealed my decision to attend this session. The main actor of his presentation is the BCS – Business Connectivity Services. He explained that while this feature has existed in on-site SharePoint it is a valuable new addition to Office 365 SharePoint Online.  If you aren’t familiar with the BCS, it allows you to leverage non-SharePoint enterprise data source from SharePoint.  The greatest benefactor is the end users who can leverage the data using a variety of Office products and more.  The one thing I haven’t shaken my skepticism of is the use of SharePoint Designer which Donovan used to create a WCF service.  It is mostly my tendency to try to create solutions that can be managed through the whole application life cycle.  It the past migrating through test environments has been near impossible with anything other than content created by SharePiont Designer. There is a lot of end user power here.  The biggest consideration I think you need to examine when reaching from you enterprise LOB data stores out to an online service and back is that you are going to take a performance hit.  This means that you have to be very aware of how you configure these integrated self serve solutions.  As a rule make sure you are using the right tool for the right situation. I appreciated that he showed both no code and code solutions for the consumer of the LOB data.  I came out of this session much better informed about the possibilities around this product. del.icio.us Tags: Office 365,SharePoint Online,TechEd,TechEd 2012

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  • Microsoft Kinect Sales Are 2X Faster Than iPad

    - by Gopinath
    Apple iPad broke many records and it was crowned as the fastest adopted digital device in the history. 2 million iPads were sold in two months and Apple fan boys are all happy with the news. Here comes some good news for Microsoft lovers – Microsoft’s Kinect is selling twice as fast as Apple iPads. In just 25 days after the launch, 2 million Kinects are sold across the globe – that means 100K Kinect sales per day. Very impressive! Kinect was originally released for XBox 360 gaming console but hackers and geeks are able to connect Kinect to Windows 7 PC to control computers using gestures. The possibilities Kinect usage in building natural user interfaces looks very promising. If this growth sustains after the festive season, Microsoft Kinect will displace iPad from the crown of fastest adopted digital device. More details at Xbox 360 Surpasses 2.5 Million Kinect Sensors Sold This article titled,Microsoft Kinect Sales Are 2X Faster Than iPad, was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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  • New training on Power Pivot with recorded video courses

    - by Marco Russo (SQLBI)
    I and Alberto Ferrari started delivering training on Power Pivot in 2010, initially in classrooms and then also online. We also recorded videos for Project Botticelli, where you can find content about Microsoft tools and services for Business Intelligence. In the last months, we produced a recorded video course for people that want to learn Power Pivot without attending a scheduled course. We split the entire Power Pivot course training in three editions, offering at a lower price the more introductive modules: Beginner: introduces Power Pivot to any user who knows Excel and want to create reports with more complex and large data structures than a single table. Intermediate: improves skills on Power Pivot for Excel, introducing the DAX language and important features such as CALCULATE and Time Intelligence functions. Advanced: includes a depth coverage of the DAX language, which is required for writing complex calculations, and other advanced features of both Excel and Power Pivot. There are also two bundles, that includes two or three editions at a lower price. Most important, we have a special 40% launch discount on all published video courses using the coupon SQLBI-FRNDS-14 valid until August 31, 2014. Just follow the link to see a more complete description of the editions available and their discounted prices. Regular prices start at $29, which means that you can start a training with less than $18 using the special promotion. P.S.: we recently launched a new responsive version of the SQLBI web site, and now we also have a page dedicated to all videos available about our sessions in conferences around the world. You can find more than 30 hours of free videos here: http://www.sqlbi.com/tv.

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  • Hancon / Hanwang Graphics Tablet not recognised

    - by Martin Kyle
    I'm totally lost. I've just built a new system and installed Ubuntu 12.04. It's my first time with Linux and getting into the terminal / command line for the first time since IBMDOS 5 and Windows 3.1 has been a steep learning curve. However, the interface works beautifully apart from it doesn't recognize my Hanvon Artmaster AM1209. I have sent diagnostics to Digimend and Favux was kind enough to advise that the tablet should be using the Wacom X driver as the Hanvon is actually a Hanwang and these should be supported. lsusb reports: ID 0b57:8501 Beijing HanwangTechnology Co., Ltd xinput list reports: ? Virtual core pointer id=2 [master pointer (3)] ? ? Virtual core XTEST pointer id=4 [slave pointer (2)] ? ? PS/2+USB Mouse id=8 [slave pointer (2)] ? Virtual core keyboard id=3 [master keyboard (2)] ? Virtual core XTEST keyboard id=5 [slave keyboard (3)] ? Power Button id=6 [slave keyboard (3)] ? Power Button id=7 [slave keyboard (3)] ? Eee PC WMI hotkeys id=9 [slave keyboard (3)] ? AT Translated Set 2 keyboard id=10 [slave keyboard (3)] Favux suggested inspecting /var/log/Xorg.0.log for the tablet but I cannot see any mention of it, and that is as far as I have got. I've tried researching the problem but I am struggling with all the new terminology and the fact that I want the PC to be a means to an end and not the end in itself where I spend the rest of my days tweaking and testing rather than just using it. Hope there is some help out there.

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  • Daylight Saving Time Visualized

    - by Jason Fitzpatrick
    When you map out the Daylight Saving Time adjusted sunrise and sunset times over the course of the year, an interesting pattern emerges. Chart designer Germanium writes: I tried to come up with the reason for the daylight saving time change by just looking at the data for sunset and sunrise times. The figure represents sunset and sunrise times thought the year. It shows that the daylight saving time change marked by the lines (DLS) is keeping the sunrise time pretty much constant throughout the whole year, while making the sunset time change a lot. The spread of sunrise times as measured by the standard deviation is 42 minutes, which means that the sunrise time changes within that range the whole year, while the standard deviation for the sunset times is 1:30 hours. Whatever the argument for doing this is, it’s pretty clear that reason is to keep the sunrise time constant. You can read more about the controversial history of Daylight Saving Time here. Daylight Saving Time Explained [via Cool Infographics] 6 Ways Windows 8 Is More Secure Than Windows 7 HTG Explains: Why It’s Good That Your Computer’s RAM Is Full 10 Awesome Improvements For Desktop Users in Windows 8

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  • How to Make Sure Your Company Doesn't Go Underwater If Your Programmers Are Hit by a Bus

    - by Graviton
    I have a few programmers under me, they are all doing very great and very smart obviously. Thank you very much. But the problem is that each and every one of them is responsible for one core area, which no one else on the team have foggiest idea on what it is. This means that if anyone of them is taken out, my company as a business is dead because they aren't replaceable. I'm thinking about bringing in new programmers to cover them, just in case they are hit by a bus, or resign or whatever. But I afraid that The old programmers might actively resist the idea of knowledge transfer, fearing that a backup might reduce their value. I don't have a system to facilitate technology transfer between different developers, so even if I ask them to do it, I've no assurance that they will do it properly. My question is, How to put it to the old programmers in such they would agree What are systems that you use, in order to facilitate this kind of "backup"? I can understand that you can do code review, but is there a simple way to conduct this? I think we are not ready for a full blown, check-in by check-in code review.

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  • View Word Definitions in IE 8 with the Define with Bing Accelerator

    - by Asian Angel
    Do you need an easy way to view word definitions while browsing with Internet Explorer? The Define with Bing Accelerator will display definitions in the same (or a new) tab and save you time while browsing. Using Define with Bing The installation consists of two steps. First, click on Add to Internet Explorer to start the process. Next you will be asked to confirm the installation. Once you have clicked Add your new accelerator is ready to use (no browser restart required). Whenever you encounter a word that needs defining highlight it, click on the small blue square, go to All Accelerators, and then Define with Bing. There are two ways to access the definition: Hover your mouse over the Define with Bing text to open a small popup window Click on Define with Bing to open a definition search in a new tab Being able to access a definition or explanation in the same tab will definitely save you time while browsing. In the example shown here you can get an idea of what SCORM means but clicking on the links inside the popup window is not recommended (webpage opens in popup and is not resizable). In the situation shown above it is better to click on Define with Bing and see more information in a new tab. Conclusion The Define with Bing Accelerator can be a very useful time saver while browsing with Internet Explorer. Finding those word definitions will be a much more pleasant experience now. Add the Define with Bing Accelerator to Internet Explorer Similar Articles Productive Geek Tips Add Google Dictionary Power to ChromeChoose Custom New Tab Pages in ChromeSearch Alternative Search Engines from within Bing’s Search PageView Word Definitions in Google Chrome with DictionaryTipThe New Bing Bar Provides Easy Access to Searches and Microsoft Live Services TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips CloudBerry Online Backup 1.5 for Windows Home Server Snagit 10 VMware Workstation 7 Acronis Online Backup Sculptris 1.0, 3D Drawing app AceStock, a Tiny Desktop Quote Monitor Gmail Button Addon (Firefox) Hyperwords addon (Firefox) Backup Outlook 2010 Daily Motivator (Firefox)

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  • How to Run Pam Face Authentication

    - by Supriyo Banerjee
    I am using Ubuntu 11.10. I went to the following URL to download the software 'Pam Face Authentication': http://ppa.launchpad.net/antonio.chiurazzi/ppa/ubuntu/pool/main/p/pam-face-authentication/ and downloaded the version for natty narhwall. I installed the software using the following commands: sudo apt-get install build-essential cmake qt4-qmake libx11-dev libcv-dev libcvaux-dev libhighgui2.1 libhighgui-dev libqt4-dev libpam0g-dev checkinstall cd /tmp && wget http://pam-face-authentication.googlecode.com /files/pam-face-authentication-0.3.tar.gz sudo add-apt-repository ppa:antonio.chiurazzi sudo apt-get update sudo apt-get install pam-face-authentication cat << EOF | sudo tee /usr/share/pam-configs/face_authentication /dev/null Name: face_authentication profile Default: yes Priority: 900 Auth-Type: Primary Auth: [success=end default=ignore] pam_face_authentication.so enableX EOF sudo pam-auth-update --package face_authentication The software installed and I can run the qt-facetrainer. But the problem is when I restarted my system, I saw that the default login screen is appearing where I should put my password to login. The webcam is not starting at all. And I cannot login with my face. Which means I think that pam face authentication programme is not starting at all. Please let me know how I can login with my face using pam face authentication programme.

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  • Mission critical embedded language

    - by Moe
    Maybe the question sounds a bit strange, so i'll explain a the background a little bit. Currently i'm working on a project at y university, which will be a complete on-board software for an satellite. The system is programmed in c++ on top of a real-time operating system. However, some subsystems like the attitude control system and the fault detection and a space simulation are currently only implemented in Matlab/Simulink, to prototype the algorithms efficiently. After their verification, they will be translated into c++. The complete on-board software grew very complex, and only a handful people know the whole system. Furthermore, many of the students haven't program in c++ yet and the manual memory management of c++ makes it even more difficult to write mission critical software. Of course the main system has to be implemented in c++, but i asked myself if it's maybe possible to use an embedded language to implement the subsystem which are currently written in Matlab. This embedded language should feature: static/strong typing and compiler checks to minimize runtime errors small memory usage, and relative fast runtime attitude control algorithms are mainly numerical computations, so a good numeric support would be nice maybe some sort of functional programming feature, matlab/simulink encourage you to use it too I googled a bit, but only found Lua. It looks nice, but i would not use it in mission critical software. Have you ever encountered a situation like this, or do you know any language, which could satisfies the conditions? EDIT: To clarify some things: embedded means it should be able to embed the language into the existing c++ environment. So no compiled languages like Ada or Haskell ;)

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  • Two Copies of Pete Brown's "Silverlight 5 In Action" to Give Away

    - by Dave Campbell
    Yes... you read that correctly... I have two copies of Pete Brown's excellent book "Silverlight 5 In Action" to give away... if you're not familiar with Pete's book, here is a short synopsis for a large book: Silverlight 5 in Action teaches you how to build desktop-quality applications you can deploy on the web. Beginners will appreciate the progression from simple examples to full applications that employ good design and coding practices. Seasoned . NET developers will love how the sample code embraces and extends what they already know. As with other give-aways I've done on my blog, rather than me trying to pick the most worthy 2 people of all submittals, what I'm going to do is randomly select 2 entries from those that are submitted. Email address for Submittals I have a special email address for submittals: mailto:[email protected]?Subject=Giveaway. Deadline for Submittals I will take submittals dated from the time this post hits until midnight Sunday night, June 17, 2012 - Arizona time. That means sometime Monday morning June 18th, I will announce the winners. Send in an email and good luck... it's a great book! But wait, there's more! If you don't want to wait until next Tuesday to get into Pete's book, or you don't figure you're that lucky to get one of the two I'm giving away, I also have a 39% off discount code for "Silverlight 5 In Action" if used at Manning.com!! Just order your book online, and use the discount code 12s5sc and you'll get the book on it's way immediately. Either way you go... you won't be disappointed. I've been reading this as it goes and it is a treasure-trove of information. Grab your copy, and Stay in the 'Light!

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  • Managing Social Relationships for the Enterprise – Part 1

    - by kellsey.ruppel
    By Reggie Bradford, Senior Vice President, Oracle  Today, Mark Hurd, President of Oracle, Thomas Kurian, Executive Vice President of Oracle and I discussed the strategic importance of how social media is impacting the enterprise and how it is changing the way customers, prospects employees and investors interact with brands worldwide.  Oracle understands that the consumer is in control and as such, brands must evolve and change to meet growing needs. In addition, according to social media thought leader and Analyst from Altimeter Group, Jeremiah Owyang, companies now average 178 corporate-owned social media accounts. When Oracle added leading social marketing, listening analytics and development tools from Vitrue, Collective Intellect and Involver to its Oracle’s Cloud Services Suite we went beyond providing a single set of tools. We developed an entire framework to include a comprehensive social relationship management suite to help companies move beyond the social enterprise and achieve the social-enabled enterprise.  The fundamental shift from transaction to engagement means that enterprises need not only a social strategy, but should also ensure that the information and data received from social initiatives flow back to marketing, sales, support and service. Doing so enables companies to deliver a proactive and compelling experience and provides analytics to turn engagement into opportunity – and ultimately that opportunity into revenue.  On September 13, 2012, I am delighted to sit down with Jeremiah to further the discussion about how enterprises are addressing social media strategies and managing content.  In addition, we will be taking your questions after the webinar via Twitter (@Oracle, @ReggieBradford, @cfinn, @jowyang). Use #oracle and #socbiz to submit questions and follow the conversation. I look forward to speaking with you and answering your questions online.  For more information about becoming a social-enabled enterprise, visit www.oracle.com/social. And don’t miss the insights of other social business thought leaders at www.oracle.com/goto/socialbusiness.

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  • How to fix Failed to initialize Windows Azure storage emulator error

    - by ybbest
    When you press F5 to start debugging Azure project, you might get the following exception: If you go to the Output windows, you will see the detailed error message below: Windows Azure Tools: Failed to initialize Windows Azure storage emulator. Unable to start Development Storage. Failed to start Development Storage: the SQL Server instance ‘localhost\SQLExpress’ could not be found. Please configure the SQL Server instance for Development Storage using the ‘DSInit’ utility in the Windows Azure SDK. This is because by default, Azure uses the SQLExpress to start Development Storage. To fix this you can do the following: You need to open command prompt, and navigate to C:\Program Files\Windows Azure SDK\v1.4\bin\devstore (depending on your Azure version, the file path is slightly different.) Next, run DSInit /sqlInstance:. (. Means the SQL Server use the default instance, if you have name instance, you need to change. to the name of the SQL Server) After a short while, you should see the following windows showing the configuration succeeds. You can download a batch file here. References: http://msdn.microsoft.com/en-us/library/gg433132.aspx

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  • Deployable dependencies in Visual Studio 2010 SP1 Beta

    - by DigiMortal
    One new feature that comes with Visual Studio 2010 SP1 Beta is support for deployment references. Deployment reference means that you can include all necessary DLL-s to deployment package so your application has all assemblies it needs to run with it in deployment package. In this posting I will show you how to use deployment dependencies. When I open my ASP.NET web application I have new option for references when I right-click on my web project: Add Deployable Dependencies… If you select it you will see dialog where you can select dependencies you want to add to your project package. When packages you need are selected click OK. Visual Studio adds new folder to your project called _bin_DeployableAssemblies. Screenshot on right shows the list of assemblies added for ASP.NET Pages and Razor. All DLL-s required to run ASP.NET MVC 3 with Razor view engine are here. I am not sure if NuGet.Core.dll is required in production but if it is added then let it be there. Deploy to Azure I tried to deploy my ASP.NET MVC project that uses Razor to Windows Azure after adding deployable references to my project. Deployment went fine and web role instance started without any problems. The only DLL reference I made as local was the one for System.Web.Mvc. All Razor stuff came with deployable dependencies. Conclusion Visual Studio support for deployable dependencies is great because this way component providers can build definitions for their components so also assemblies that are loaded dynamically at runtime will be in deployment package.

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  • what is a normal developer to pageview ratio?

    - by Anthony Shull
    I work for an e-commerce site that has lately been shedding its workforce. I was hired ten months ago as a UI Developer. At that time we had three other developers. One was the technical lead who had been with the company for 10 years. The other two were server-side developers who had been there for 10 and 3.5 years respectively. In ten months, the technical lead left for a better position, one developer was laid off, and the other very recently left. So, I am now the only developer on staff. We have one DBA and one network administrator. They are currently looking to hire another developer but are not willing to pay enough to hire a senior person. I consider myself a junior developer with two years of experience. I have argued that we need to hire at least one senior developer and another junior developer if we're going to keep our current site operational (not to mention develop new features)...even if that means laying off staff in other departments. Right now we get 6.5 million pageviews per month, and I feel like 3.2 million pageviews per developer must be incredibly abnormal. My question is then: what is a normal developer to pageview ratio? Are there any industry standards or literature on the subject that I can use to argue for more staff?

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  • Create Windows Bootloader/Boot into Windows from Ubuntu

    - by Kincaid
    I have computer that dual-boots (or tri-boots) Windows 8 Release Preview, Windows 7, and Ubuntu 12.04. Grub boots between Windows 8 and Ubuntu; for which I use primarily. Recently, I have decided I wanted to remove Ubuntu, as I hardly used it. As a stupid mistake, I deleted the Ubuntu partition before changing the bootloader to replace Grub. Whenever I know boot the machine, it gives me the "grub-rescue" prompt -- I am unable to boot into either Windows (8 nor 7), nor Ubuntu (except via USB, of course). I do not have any Windows 7/8 recovery media, so that isn't an option. Please note that after I deleted the Ubuntu partition, I put the PC into hibernate, and then turned it on. This means the C:\ [Windows 8] drive cannot be mounted. I don't know if that is bad, but it definitely doesn't make things better. I am currently booting Ubuntu via USB, in an effort to restore the Windows bootloader solutions. I have looked into using boot-repair to solve the problem using the instructions here, although after attempting to apply the changes, it gave the error: "Please install the [mbr] packages. Then try again." I don't know why I'm getting this error; is there a way to install the 'mbr packages?' I honestly don't know what exactly they are, nor how to install them. Is there any options I have not yet exhausted to be able to boot back into Windows, in the case that there is a better way? In the end, I want to set the bootloader to boot into Windows 8, but booting into either Windows 7 or 8 is fine -- I can use EasyBCD from there. Is there a simple solution to this? I've checked BIOS, and I haven't been able to find a way to boot into Windows. Any help would be greatly appreciated.

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  • How to change the Target URL of EditForm.aspx, DispForm.aspx and NewForm.aspx

    - by Jayant Sharma
    Hi All, To changing the URL of ListForms we have very limited options. On Inernet if you search you will lots of article about Customization of List Forms using SharePoint Desinger, but the disadvantage of SharePoint Desinger is, you cannot create wsp of the customization means what ever changes you have done in UAT environment you need to repeat the same at Production. This is the main reason I donot like SharePoint Desinger more. I always prefer to create WSP file and Deployment of WSP file will do all of my work. Now, If you want to change the ListForm URL using Visual Studio, either you have create new List Defintion or Create New Content Type. I found some very good article and want to share.. http://www.codeproject.com/Articles/223431/Custom-SharePoint-List-Forms http://community.bamboosolutions.com/blogs/sharepoint-2010/archive/2011/05/12/sharepoint-2010-cookbook-how-to-create-a-customized-list-edit-form-for-development-in-visual-studio-2010.aspx Whenever you create, either List Defintion or Content type and specify the URL for List Forms it will automatically add ListID and ItemID (No ItemID in case of NewForm.aspx) in the URL as Querystring, so if you want to redirect it or do some logic you can, as you got the ItemID as well as ListID.

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  • Visual Studio, .NET Framework, and language versions

    - by Scott Dorman
    Every so often a question comes up about how Visual Studio, the .NET Framework, and a .NET programming language relate to each other. Mostly, these questions have to do with versions. The reality is that these are actually three different “products” that are versioned independently of each other but are related. Looking at how Visual Studio, the .NET Framework version, and the CLR versions relate to each other results in the following: Visual Studio CLR .NET Framework Visual Studio .NET (Ranier) 1.0.3705 1.0 Visual Studio 2003 (Everett) 1.1.4322 1.1 Visual Studio 2005 (Whidbey) 2.0.50727 2.0 Visual Studio 2005 with .NET 3.0 Extensions 2.0.50727 2.0, 3.0 Visual Studio 2008 (Orcas) 2.0.50727 2.0 SP1, 3.0 SP1, 3.5 Visual Studio 2008 SP1 2.0.50727 2.0 SP2, 3.0 SP2, 3.5 SP1 Visual Studio 2010 (Hawaii) 4.0.30319 4.0 The actual Visual Studio version numbers are: Product Name Version Ship Date Visual Studio .NET 7.0.???? 02/2002 Visual Studio .NET 2002 SP1 7.0.????   Visual Studio 2003 7.1.???? 04/2003 Visual Studio 2003 SP1 7.1.6030 09/13/2006 Visual Studio 2005 8.0.5072   Visual Studio 2005 SP1   12/14/2006 Visual Studio 2008 9.0.21022.8 11/19/2007 Visual Studio 2008 SP1 9.0.30729.1   Visual Studio 2010 10.0.30319.1 04/12/2010 (For those entries that are missing information, it simply means that I didn’t already know it and/or couldn’t easily find it online.) So far, everything seems fairly reasonable and isn’t terribly difficult to keep coordinated. However, when you start trying to find language versions and how those relate to .NET Framework, CLR, or Visual Studio releases it becomes more difficult. The breakdown for the programming languages that are part of Visual Studio are: Framework CLR Language     C# VB F# 1.0 1.0.3705 1.0 7.0 - 1.1 1.1.4322 1.1 7.1 - 2.0 2.0.50727 2.0 8.0 - 3.0 2.0.50727 2.0 8.0 - 3.5 2.0.50727 2.0 9.0 - 4.0 4.0.30319 4.0 10.0 2.0   Technorati Tags: Visual Studio,.NET

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  • Can I save & store a user's submission in a way that proves that the data has not been altered, and that the timestamp is accurate?

    - by jt0dd
    There are many situations where the validity of the timestamp attached to a certain post (submission of information) might be invaluable for the post owner's legal usage. I'm not looking for a service to achieve this, as requested in this great question, but rather a method for the achievement of such a service. For the legal (in most any law system) authentication of text content and its submission time, the owner of the content would need to prove: that the timestamp itself has not been altered and was accurate to begin with. that the text content linked to the timestamp had not been altered I'd like to know how to achieve this via programming (not a language-specific solution, but rather the methodology behind the solution). Can a timestamp be validated to being accurate to the time that the content was really submitted? Can data be stored in a form that it can be read, but not written to, in a proven way? In other words, can I save & store a user's submission in a way that proves that the data has not been altered, and that the timestamp is accurate? I can't think of any programming method that would make this possible, but I am not the most experienced programmer out there. Based on MidnightLightning's answer to the question I cited, this sort of thing is being done. Clarification: I'm looking for a method (hashing, encryption, etc) that would allow an average guy like me to achieve the desired effect through programming. I'm interested in this subject for the purpose of Defensive Publication. I'd like to learn a method that allows an every-day programmer to pick up his computer, write a program, pass information through it, and say: I created this text at this moment in time, and I can prove it. This means the information should be protected from the programmer who writes the code as well. Perhaps a 3rd party API would be required. I'm ok with that.

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  • Going Paperless

    - by Jesse
    One year ago I came to work for a company where the entire development team is 100% “remote”; we’re spread over 3 time zones and each of us works from home. This seems to be an increasingly popular way for people to work and there are many articles and blog posts out there enumerating the advantages and disadvantages of working this way. I had read a lot about telecommuting before accepting this job and felt as if I had a pretty decent idea of what I was getting into, but I’ve encountered a few things over the past year that I did not expect. Among the most surprising by-products of working from home for me has been a dramatic reduction in the amount of paper that I use on a weekly basis. Hoarding In The Workplace Prior to my current telecommute job I worked in what most would consider pretty traditional office environments. I sat in cubicles furnished with an enormous plastic(ish) modular desks, had a mediocre (at best) PC workstation, and had ready access to a seemingly endless supply of legal pads, pens, staplers and paper clips. The ready access to paper, countless conference room meetings, and abundance of available surface area on my desk and in drawers created a perfect storm for wasting paper. I brought a pad of paper with me to every meeting I ever attended, scrawled some brief notes, and then tore that sheet off to keep next to my keyboard to follow up on any needed action items. Once my immediate need for the notes was fulfilled, that sheet would get shuffled off into a corner of my desk or filed away in a drawer “just in case”. I would guess that for all of the notes that I ever filed away, I might have actually had to dig up and refer to 2% of them (and that’s probably being very generous). That said, on those rare occasions that I did have to dig something up from old notes, it was usually pretty important and I ended up being very glad that I saved them. It was only when I would leave a job or move desks that I would finally gather all those notes together and take them to shredding bin to be disposed of. When I left my last job the amount of paper I had accumulated over my three years there was absurd, and I knew coworkers who had substance-abuse caliber paper wasting addictions that made my bad habit look like nail-biting in comparison. A Product Of My Environment I always hated using all of this paper, but simply couldn’t bring myself to stop. It would look bad if I showed up to an important conference room meeting without a pad of paper. What if someone said something profound! Plus, everyone else always brought paper with them. If you saw someone walking down the hallway with a pad of paper in hand you knew they must be on their way to a conference room meeting. Some people even had fancy looking portfolio notebook sheaths that gave their legal pads all the prestige of a briefcase. No one ever worried about running out of fresh paper because there was an endless supply, and there certainly was no shortage of places to store and file used paper. In short, the traditional office was setup for using tons and tons of paper; it’s baked into the culture there. For that reason, it didn’t take long for me to kick the paper habit once I started working from home. In my home office, desk and drawer space are at a premium. I don’t have the budget (or the tolerance) for huge modular office furniture in my spare bedroom. I also no longer have access to a bottomless pit of office supplies stock piled in cabinets and closets. If I want to use some paper, I have to go out and buy it. Finally (and most importantly), all of the meetings that I have to attend these days are “virtual”. We use instant messaging, VOIP, video conferencing, and e-mail to communicate with each other. All I need to take notes during a meeting is my computer, which I happen to be sitting right in front of all day. I don’t have any hard numbers for this, but my gut feeling is that I actually take a lot more notes now than I ever did when I worked in an office. The big difference is I don’t have to use any paper to do so. This makes it far easier to keep important information safe and organized. The Right Tool For The Job When I first started working from home I tried to find a single application that would fill the gap left by the pen and paper that I always had at my desk when I worked in an office. Well, there are no silver bullets and I’ve evolved my approach over time to try and find the best tool for the job at hand. Here’s a quick summary of how I take notes and keep everything organized. Notepad++ – This is the first application I turn to when I feel like there’s some bit of information that I need to write down and save. I use Launchy, so opening Notepad++ and creating a new file only takes a few keystrokes. If I find that the information I’m trying to get down requires a more sophisticated application I escalate as needed. The Desktop – By default, I save every file or other bit of information to the desktop. Anyone who has ever had to fix their parents computer before knows that this is a dangerous game (any file my mother has ever worked on is saved directly to the desktop and rarely moves anywhere else). I agree that storing things on the desktop isn’t a great long term approach to keeping organized, which is why I treat my desktop a bit like my e-mail inbox. I strive to keep both empty (or as close to empty as I possibly can). If something is on my desktop, it means that it’s something relevant to a task or project that I’m currently working on. About once a week I take things that I’m not longer working on and put them into my ‘Notes’ folder. The ‘Notes’ Folder – As I work on a task, I tend to accumulate multiple files associated with that task. For example, I might have a bit of SQL that I’m working on to gather data for a new report, a quick C# method that I came up with but am not yet ready to commit to source control, a bulleted list of to-do items in a .txt file, etc. If the desktop starts to get too cluttered, I create a new sub-folder in my ‘Notes’ folder. Each sub-folder’s name is the current date followed by a brief description of the task or project. Then all files related to that task or project go into that sub folder. By using the date as the first part of the folder name, these folders are automatically sorted in reverse chronological order. This means that things I worked on recently will generally be near the top of the list. Using the built-in Windows search functionality I now have a pretty quick and easy way to try and find something that I worked on a week ago or six months ago. Dropbox – Dropbox is a free service that lets you store up to 2GB of files “in the cloud” and have those files synced to all of the different computers that you use. My ‘Notes’ folder lives in Dropbox, meaning that it’s contents are constantly backed up and are always available to me regardless of which computer I’m using. They also have a pretty decent iPhone application that lets you browse and view all of the files that you have stored there. The free 2GB edition is probably enough for just storing notes, but I also pay $99/year for the 50GB storage upgrade and keep all of my music, e-books, pictures, and documents in Dropbox. It’s a fantastic service and I highly recommend it. Evernote – I use Evernote mostly to organize information that I access on a fairly regular basis. For example, my Evernote account has a running grocery shopping list, recipes that my wife and I use a lot, and contact information for people I contact infrequently enough that I don’t want to keep them in my phone. I know some people that keep nearly everything in Evernote, but there’s something about it that I find a bit clunky, so I tend to use it sparingly. Google Tasks – One of my biggest paper wasting habits was keeping a running task-list next to my computer at work. Every morning I would sit down, look at my task list, cross off what was done and add new tasks that I thought of during my morning commute. This usually resulted in having to re-copy the task list onto a fresh sheet of paper when I was done. I still keep a running task list at my desk, but I’ve started using Google Tasks instead. This is a dead-simple web-based application for quickly adding, deleting, and organizing tasks in a simple checklist style. You can quickly move tasks up and down on the list (which I use for prioritizing), and even create sub-tasks for breaking down larger tasks into smaller pieces. Balsamiq Mockups – This is a simple and lightweight tool for creating drawings of user interfaces. It’s great for sketching out a new feature, brainstorm the layout of a interface, or even draw up a quick sequence diagram. I’m terrible at drawing, so Balsamiq Mockups not only lets me create sketches that other people can actually understand, but it’s also handy because you can upload a sketch to a common location for other team members to access. I can honestly say that using these tools (and having limited resources at home) have lead me to cut my paper usage down to virtually none. If I ever were to return to a traditional office workplace (hopefully never!) I’d try to employ as many of these applications and techniques as I could to keep paper usage low. I feel far less cluttered and far better organized now.

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  • iStack for iPad

    - by Jonathan
    The below image is the current, and hopefully final, look of the front screen, the app will remember which stack site you have chosen so the user will only see this screen the first time, but they can always go back and change it. The red bar is only there when a new site is added (the StackOverflow is just a test as no site has been added since I implemented this) and can be gotten rid of by tapping the X on the right side (which isn't in the screenshot). Each column now has an edit button where the sites can be rearranged and moved from favourites to non favourites and this is persistent between app launches, moving a site in one column moves it in all of them. I've removed site icons in order to put them in properly so they load lazily and theres no UI freezing. Printing Functionality all implemented and working, thanks to systempuntoout's stackprinter.com works with AirPrint, which means this app will be iOS 4.2 minimum. Current features: 3 columns Email link to question, open in safari and copy link actions History for both questions and sites visited In app notification (red bar at the top) when a new site makes it into beta. StackPrinter in the app, without needing safari, and AirPrint functionality. Facebook Intergration Planned: Local Favourites Watching (a list of questions your watching, like short term favourites, with eventually push notifications) Web service to access local favourites and watches on non-iPad devices. Twitter integration. Safari bookmarklet to open question in iStack from safari In app notification for when site progresses from beta to normal. In app notification history

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  • Building gstreamer_ndk_bundle problems

    - by Cipi
    I'm trying to build gstreamer_ndk_bundle under Ubuntu 12.4 and I'm failing miserably! I have installed all "glib-dev" packages (packages that in their name have glib and dev), and also I have tried to compile/install glib 2.33.1 (latest) from source, but I always get this error: /home/marko/gstreamer_ndk_bundle/jni/../glib/gobject/gmarshal.c:149: undefined reference to `g_value_get_schar' collect2: ld returned 1 exit status make: *** [/home/marko/gstreamer_ndk_bundle/obj/local/armeabi/libgobject-2.0.so] Error 1 This means that glib source doesn't have the definition for g_value_get_schar, and since that function was introduced in glib somewhere after version 2.30.0, my guess is that I am not using proper glib! I tried to force gstremaer_ndk_bundle to build with sources from the folder /home/marko/glib-2.33.1/ which I compiled/installed by exporting these env vars: GLIB_GENMARSHAL=/home/marko/glib-2.33.1/gobject/glib-genmarshal GLIB_COMPILE_SCHEMAS=/home/marko/glib-2.33.1/gio/glib-compile-schemas Also I changed gmarshal.h so it includes gmarshal.h from the installed glib folder: #ifndef _marko_glib_loaded #define _marko_glib_loaded #include "/home/marko/glib-2.33.1/gobject/gmarshal.h" #endif But failed in both cases. How can I know what glib is used while compiling gstreamer and install the proper one? How can I force gstreamer_ndk_bundle to use glib sources from the folder I have un-tared/configured/installed and not the system ones, or whatever ones it uses? I read somewhere that I need gstreamer-devel package if I keep getting this error while compiling. Where can I find that package?! Can't Google it out... Has anyone EVER built gstreamer_ndk_bundle and lived to tell the tale?

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  • JavaScript objects and Crockford's The Good Parts

    - by Jonathan
    I've been thinking quite a bit about how to do OOP in JS, especially when it comes to encapsulation and inheritance, recently. According to Crockford, classical is harmful because of new(), and both prototypal and classical are limited because their use of constructor.prototype means you can't use closures for encapsulation. Recently, I've considered the following couple of points about encapsulation: Encapsulation kills performance. It makes you add functions to EACH member object rather than to the prototype, because each object's methods have different closures (each object has different private members). Encapsulation forces the ugly "var that = this" workaround, to get private helper functions to have access to the instance they're attached to. Either that or make sure you call them with privateFunction.apply(this) everytime. Are there workarounds for either of two issues I mentioned? if not, do you still consider encapsulation to be worth it? Sidenote: The functional pattern Crockford describes doesn't even let you add public methods that only touch public members, since it completely forgoes the use of new() and constructor.prototype. Wouldn't a hybrid approach where you use classical inheritance and new(), but also call Super.apply(this, arguments) to initialize private members and privileged methods, be superior?

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