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• RibbonBar Control Panel Backported to DotNetNuke Community Edition

  I am pleased to announce that once again we are backporting a feature from DotNetNuke Professional Edition to the Community Edition. In DotNetNuke 5.3 PE we added a new control panel which leverages the Telerik TabStrip to provide increased functionality over the previous IconBar. Some of the new control panel functionality makes common tasks even easier and provides more streamlined access to some administrative areas of the application.More......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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• Silverlight Goes Mobile!

  - by PeterTweed

  The most exciting announcements from Mix 2010 last week for me were the release of the Windows Phone 7 Series SDK and the news that the platform utilizes Silverlight for the application development technology. From the press and exposure that the platform is being given and the experience that is promised it looks like the Windows Phone 7 Series could eventually compete with the iPhone. For me this is exciting as Silverlight can now be used to develop RIA apps, easily deployed desktop apps and mobile apps. As someone who delivers enterprise technology solutions this equates to a whole bunch of opportunity knocking at the door and asking to join the party. Watch this space for future posts on developing apps on the Windows Phone 7 Series platform!

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• JCP wrap up of JavaOne and some news links

  - by heathervc

  A New article has been published on JCP.org covering the happenings surrounding JavaOne earlier this month, JCP Wrap-Up: Platform Evolution and JCP Enthusiasm. The JCP sessions from JavaOne are also now available from the JavaOne conference catalog: JCP.Next: Reinvigorating Java Standards Session ID: BOF6272 101 Ways to Improve Java: Why Developer Participation Matters Session ID: BOF6283 Meet the JCP Executive Committee Candidates Session ID: BOF6307 And a few links from around the web related to the JCP and JavaOne are below. Let us know if we've missed anything! 101 Ways to Improve Java - Why Developer Participation Matters (DZone) JavaOne 2012: 101 Ways to Improve Java (Java Code Geeks) JCP Ready for the Hard Stuff: Revising the JSPA (Application Development Trends) Oracle Hails Community Involvement in Java (v3.co.uk) JavaOne 2012 Recap Trip Report: Oracle OpenWorld and JavaOne 2012

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• What is the practical use of IBOs / degenerate vertex in OpenGL?

  - by 0xFAIL

  Vertices in 3D models CAN get cut in the process of optimizing 3D geometry, (degenerate vertices) by 3D graphics software (Blender, ...) when exporting because they aren't needed when reusing a vertex for multiple triangles. (In the current case 3D data is exported from Blender as .ply and read by a simple application that displays the 3D model) Every vertex has a few attributes like position, color, normal, tangent,... But the data for each vertex that is cut through the vertex sharing is lost and is missing in the vertex shader. Modern shader techniques like Bump or Normal mapping require normals/tangents per vertex which are also cut. To use complex shader techniques IBOs must not be used? Or is there a way to use IBOs and retain the data per vertex that was origionally lost?

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• What does this snippet work? It uses session cookie [closed]

  - by Emerald214

  My website is a gadget application. It uses CakePHP framework. It has the below snippet in AppController. I searched the cookie variable in the project but can't find any other occurences. I also don't understand what it works. Why does it always check this in every request. if ( isset( $_COOKIE[session_name()] ) ) { if ( !isset( $this->sns_id ) ) { // ????????? $this->cakeError( 'session' ); } } else { // ?????????????????? if ( !isset( $_REQUEST['post_pf_params'] ) ) { $this->cakeError( 'cookie' ); } }

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• Ad-Driven Apps Are Sucking Your Android Battery Dry

  - by Jason Fitzpatrick

  Ads in free Android apps might be annoying but you probably never imagined they were radically draining your battery. New research from Purdue University and Microsoft highlight just how much ad-driven apps tank your battery life. What did they find? That poorly designed ad-modules in free ad-driven applications are terrible at conserving energy. In popular applications like Angry Birds and Free Chess 70% of the energy the application consumed was used to drive the ads. They also surveyed other applications and found that ad-driven apps weren’t alone in excessive battery use–the New York Times app, for example, spent 15% of its battery consumption on tracking and background tasks. Hit up the link below to read the full whitepaper for a more in depth look at the methodology and results. Fine Grained Energy Accounting on Smartphones with Eprof (PDF) [via ZDNet] Make Your Own Windows 8 Start Button with Zero Memory Usage Reader Request: How To Repair Blurry Photos HTG Explains: What Can You Find in an Email Header?

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• How to find corrupted files?

  - by rafalcieslak

  Some files on my hard drive are corrupted (no worries, nothing system-related, just a junk of data files, mp3 etc.). I found that out when I tried to burn them all to a DVD, the burning application show a message that it cannot read the files as they are corrupted. [This is probably a drive issue, it had happened me once or twice already]. I don't care about recovering them, but I have to determine which ones are corrupted. I cannot check by manually opening them all, as there are thousands of them. Is there any tricky way to check all the files and list the ones that may cause problems when tried to open?

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• Oracle University Nuevos cursos (Week 42)

  - by rituchhibber

  Oracle University ha publicado recientemenete las siguentes formaciones (o versiones) nuevos: Database Oracle Enterprise Manager Cloud Control 12c: Install & Upgrade (Training On Demand) MySQL Performance Tuning (Training On Demand) Fusion Middleware Oracle GoldenGate 11g Fundamentals for Oracle (4 days) Oracle WebCenter Content 11g: Site Studio Essentials (5 days) Oracle WebCenter Portal 11g: Build Portals with Spaces (3 days) Business Intelligence Oracle BI 11g R1: Create Analyses and Dashboards (4 days) SOA & BPM SOA Adoption and Architecture Fundamentals (3 Days) eBusiness Suite R12 Oracle Using and Maintaining Approvals Management - Self-Study Course R12 Oracle HRMS Advanced Benefits Fundamentals - Self-Study Course WebLogic Oracle WebLogic Server 11g: Monitor and Tune Performance (Training On Demand) Financial Oracle Project Financial Planning 11.1.2: Create Projects ( 3 days) Tuxedo Oracle Tuxedo 12c: Application Administration (5 days) Java Java SE 7: The Platform Evolves - Self-Study Course Primevera Primavera Client/Server Partner Trainer Course - Self-Study Course Primavera Progress Reporter 8.2 - Self-Study Course Póngase en contacto con el equipo local de Oracle University para conocer las fechas y otros detalles de los cursos.

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• At what size of data does it become beneficial to move from SQL to NoSQL?

  - by wobbily_col

  As a relational database programmer (most of the time), I read articles about how relational databases don't scale, and NoSQL solutions such as MongoDB do. As most of the databases I have developed so far have been small to mid scale, I have never had a problem that hasn't been solved by some indexing, query optimization or schema redesign. What sort of size would I expect to see MySQL struggling with. How many rows? (I know this is going to depend on the application, and type of data stored. the one that got me thing was basically a genetics database, so would have one main table, with 3 or 4 lookup tables. The main table will contain amongst other things, a chromosome reference, and a position coordinate. It will likely get queried for a number of entries between two potions on a chromosome, to see what is stored there).

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• How can I run Openbox using the GNOME/Openbox session?

  - by skyblue

  I want to be able to run openbox as my window manager while running GNOME. If I install openbox, I get the additional choices at the GDM login window of a 'GNOME/Openbox' and an 'openbox session'. If I log in with the 'openbox session', it starts openbox successfully. However, if I log in using the 'GNOME/Openbox' session so that I can run GNOME but just replace metacity with openbox, I find that openbox does not start, and that metacity is managing my application windows. It looks something is not working in the GNOME/Openbox session in 10.04 (and possibly other versions of Ubuntu). I know that I can manually replace metacity with openbox by typing 'openbox --replace', but I want to know the correct way of starting openbox in a GNOME environment automatically at logon.

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• Ubuntu boots to black screen after failed upgrade from 12.04 to 12.10

  - by ywx

  This happened when I tried to upgrade from 12.04 to 12.10. I don't know whether the upgrade process had completed downloading and installing packages or whether it was still in progress, but I got a message The application Compiz has closed unexpectedly. At that point, my mouse stopped working so I switched to tty1 by Ctrl+Alt+F1 and rebooted from there. I then found that I could not boot into Ubuntu any more. My screen stayed first purple then black. I went back to tty1 and it said I was running 12.10. I tried some suggestions in this thread on Ubuntuforums: Wubi blank purple screen than blank black screen and this one: How to set NOMODESET and other kernel boot options in grub2 but nothing seemed to work. I can boot Windows as normal. I am using Wubi on Windows7. My laptop is a Lenovo T410i with NVIDA NVS 3100m

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• What norms/API for monitoring my servers?

  - by dystroy

  I have a dozen server applications installed on my customers intranets (they can send http requests over the internet but cannot be called from outside). They're written in various technologies, mainly java and Go. I want them to regularly push information about their state towards a central server which is visible on internet. Some of this information is generic (is it ON ?), some is specific (size of a cache in an application for example). The main goal is to be able to make a small web page on which I could instantly check the state of every servers. And maybe later add some kind of notification in case of problem. Obviously I can do this by writing a few dozen lines of code each side (or a little more if I put this data in a database) but in order to ease future evolution, it could be interesting to use some existing norms or libraries. So, what are the current opensource free and light solutions to do this, preferably with no central configuration when I add a server ? I'd prefer a norm over a library.

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• How to remap CapsLock key to Ctrl in Xubuntu

  - by Evgeny

  I'm trying to remap my CapsLock key to Ctrl key as described here (adding /usr/bin/setxkbmap -option "ctrl:nocaps" command to "Session and Startup"-"Application Autostart"). But this doesn't work in Xubuntu 12.04. When I'm running the same command (/usr/bin/setxkbmap -option "ctrl:nocaps") from terminal everything works as expected. If I change command to: sh -c "/usr/bin/setxkbmap -option \"ctrl:nocaps\"" it again works if I'm running it from terminal, but it doesn't work if I add it to xfce "Session and Startup" configurator. Also when I create a script like this: #!/bin/sh /usr/bin/setxkbmap -option "ctrl:nocaps" and add it to startup via "Session and startup" configurator, it has no effect at all. But if I run this script after login it actually remaps caps key as expected.

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• Broadcom BCM4313 working, but terribly slow

  - by Ataraxio Panzetta

  Hi all, I've installed ubuntu on a Asus 1015 netbook. Everything worked out of the box except for the Wireless adapter, which i had to install with the Additional Drivers application. It apparently installed fine and connects to our wireless network, but it only works at a "funny" speed range that goes from 367Bytes to a peak of 3Kb in its best moments. I know for sure the problem is neither the network nor the hardware. Network speeds are normal under windows on this laptop and in other computers with ubuntu aswell. lspci says the card is a BCM4313 model, but the Addittional Drivers Manager says these packecege contains Broadcom 802.11 Linux STA wireless driverfor use with Broadcom's BCM4311-, BCM4312-, BCM4321-, and BCM4322 based hardware seems like it installed the wrong driver... Is there anything I can do? I'm not concerned about compiling the driver or stuff like that, but I'm not sure on where to start... any help or guidance will be very, very appreciated.

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• Render a 3D scene in multiple windows - extended panoramic view

  - by teodron

  Is there any resource location on how to view a 3D scene from an application or a game on multiple windows or monitors? Each window should continue drawing from where the neighbouring one left off (in the end, the result should be a mosaic of the scene). My idea is to use a camera for each window and have a reference position and orientation for a meta-camera object that is used to correctly offset the other camera. Since there are quite some elements to consider (window specs, viewport properties, position-orientation of each render camera), what is the correct way to update the individual cameras considering the position and orientation of the central, meta-camera? I currently cannot make the cameras present the scene contiguously (and I am reluctant in working out the transformations without checking whether this is the actual way of doing things).

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• I upgraded my ubuntu server from 13.04 to 13.10 Bugs I faced

  - by kirankumar kotari

  On upgrade from 13.04 to 13.10 my system is hanged. So after waiting for 30 min. I tried to restart. Some file are corrupted. I inserted my 13.04 disk and started in rescue mode. Finally My system started Then, I upgraded some apps again. Now my system upgraded to 13.10. Finally Done. But, Now the bugs raised. On my start key I got only my online services. No other applications, recently used, music, video icons are not showing. I am facing huge problem. I am unable to see my application what i installed. I checked in unity tweak tool all are fine. So, I ask any one to solve this issue.

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• Computer Science Fundamentals - Recommended books

  - by contactmatt

  Hey, I'm looking to see if anyone can recommend any books in fundamentals of computer science. I obtained my associates degree as a programmer/analyst a couple years ago and I know a good amount about programming on the .NET framework. I'm even certified on the .NET 4 framework as a web application developer. However, since I was only able to obtain my associates degree, I was deprived at my college on the low-level basics and operations of computers and basic computer science information. I'm really interesting in learning about the low-level operations of a computer and in programming (bytes, bits, memory management, etc.) Can anyone recommend any good computer science books for someone who is decently experienced in programming? Thank You

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• What's the difference between MCSD and MCPD?

  - by Damien

  I am looking on the website but the difference between the two isn't explained. To complicate matters a Google search tells me that developers should focus on the MCPD qualifications but an examination of the MCPD section of the site is telling me that the Web Application exams will expire in July 2013! It seems out of date. Meanwhile the MCSD exam seems to be a lot more up to date with references to HTML5/ASP.net 4.5 MVC applications! What's the difference. Are the MCPD going to be updated after July? Thanks

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• Generating Landed Cost Management Charges using Custom Pricing Attributes

  - by ChristineS-Oracle

  Learn how to incorporate Custom Pricing Attributes into Landed Cost Management through a new whitepaper.  The new application, Landed Cost Management (LCM), enables exact shipment charges to be applied to incoming receipts. These charges are calculated using the Freight and Special Charges functionality from Advanced Pricing within the Pricing Transaction Entity of “Purchasing”.Advanced Pricing is very flexible in that custom attributes can be defined to derive specific charges. The way that Landed Cost Management builds these attributes is different from the processing for Advanced Pricing with Purchasing.The whitepaper can be downloaded from document Oracle Advanced Pricing White Papers, Doc ID 136687.1.

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• New Windows Phone 7 Developer Guidance released for building line of business applications

  - by Eric Nelson

  Several partners have been asking about guidance on combining Windows Phone 7 applications with Windows Azure. The patterns and practices team recently released new guidance on Windows Phone 7.  This is a continuation of the Windows Azure Guidance. It takes the survey application and makes a version for Windows Phone 7.  The guide includes the following topics: Prism for Windows Phone 7 Reactive Extensions WCF Services on top of Windows Azure Push Notifications Camera & Voice Panorama Much more... Well worth a read if you are an ISV looking at taking Line of Business applications to Windows Phone 7. Related Links: We have created Microsoft Platform Ready to help software houses develop applications for Windows Azure and On-Premise. Check it out and the goodies it can deliver for little effort.

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• MVC - Business Logic

  - by BriskLabs Pakistan

  I have created a MVC based simple java application. its helps the user to add records through data forms to database..... i want that the data that i put into the database as a record is worked upon i.e by performing calculations on it. the original data should remain unaffected. while the new data after calculations performed must be stored as a new entity record into database. Where should i write the code for this background calculation .. as it is the rules and business logic... in a new java beans file... Please guide. regards

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• Internal and external API architecture

  - by Tacomanator

  The company I work for maintains a successful SaaS product that grew "organically" over the years. We are planning to expand the line with a suite of new products that will share data with the existing product. To support this, we are looking to consolidate business logic into a single place: a web service layer. The WS layer will be used by: The web applications A tool to import data A tool to integrate with other client software (not an API per se) We also want to create an API that can be used by our customers that are capable of using it to create their own integrations. We are struggling with the following question: Should the internal API (aka the WS layer) and the external API be one in the same, with security and permission settings to control what can be done by who, or should they be two separate applications where the external API just calls the internal API like any other application? So far in our debate it seems that separating them may be more secure, but will add overhead. What have others done in a similar situation?

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• GTK applications do not start

  - by Greg

  Hello, I have a fresh install of Ubuntu 10.04 Server on nodes of a computational cluster, and I access the nodes via ssh. I configured a X server, which I start with the command startx -- -ac. The server is running fine on port :0. Then, I set the environment variable DISPLAY to :0. Now, when I run a GTK application on the node, it fails with the following error: Error: Unable to initialize gtk, is DISPLAY set properly? Now, my question is, is there any runtime library that I need for running GTK applications on top of a X server? I'm probably missing something obvious here, but I can't tell what :P

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• how to check that Google Analytics Tracking Code is firing on an iPad

  - by crmpicco

  I am used to using the Firebug extension "Omnibug" with Firefox to check that Google Analytics Tracking Code is firing on my website. This application works very well and has minimal overhead. I am now testing the website on an iPad and would like to know if there is a way to check that the GATC is firing on the iPad natively? I have spoofed the iPad UA string on Firefox on the desktop and it appears to fire correctly, however i'd like to see it happening on the device itself (if at all possible). I know that Firebug can be installed on an iPhone by means of a bookmarklet, however it is 1) quite buggy and not very user-friendly and 2) it doesn't support Omnibug. How can I check that my GATC is firing on my iPad?

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• Prevent APT from overwriting JCE jars

  - by Doc

  My server runs a Java application that requires I replace a few java library files with ones I downloaded on my own. This has to do with JCE security extensions and isn't really relevant to my question. I've found that these library files tend to get overwritten by apt when it later updates my java package. Is there a apt-friendly way of masking these specific files so apt won't touch them? Potential Solutions I'm considering just removing the write flag from the files, though I'm expecting this will cause apt to spew its guts everywhere when it later tries to overwrite them? Perhaps there's a java custom library directory I don't know of, where I can park my files and they'll be loaded instead of the package's defaults? The last-resort option I'm considering is writing a cron job to periodically replace the files with my versions. I hate this option.

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