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  • Progressive enhancement of anchor tags to avoid onclick="return false;"

    - by Chris Beck
    Unobtrusive JS suggests that we don't have any onclick attributes in our HTML templates. <a href="/controller/foo/1">View Foo 1</a> A most basic progressive enhancement is to convert an that anchor tag to use XHR to retrieve a DOM fragment. So, I write JS to add an event listener for a."click" then make an XHR to a.href. Alas, the browser still wants to navigate to "/controller/foo". So, I write JS to dynamically inject a.onclick = "return false;". Still unobtrusive (I guess), but now I'm paying the the cost of an extra event handler. To avoid the cost of 2 event listeners, I could shove my function call into the onclick attribute <a href="/controller/foo/1" onclick="myXHRFcn(); return false;"> But that's grodo for all sorts of reasons. To make it more interesting, I might have 100 anchor tags that I want to enhance. A better pattern is a single listener on a parent node that relies on event bubbling. That's cool, but how do I short circuit the browser from navigating to the URL without this on every anchor node? onclick="return false;" Manipulating the href is not an option. It must stay intact so the context menu options to copy or open in new page work as expected.

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  • Calculating percent of votes inside mysql statement.

    - by Beck
    UPDATE polls_options SET `votes`=`votes`+1, `percent`=ROUND((`votes`+1) / (SELECT voters FROM polls WHERE poll_id=? LIMIT 1) * 100,1) WHERE option_id=? AND poll_id=? Don't have table data yet, to test it properly. :) And by the way, in what type % integers should be stored in database? Thanks for the help!

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  • How to move iframe along the DOM without losing it's content?

    - by Beck
    Is it possible? I have tried to move it, but iframe contents dissapear. Tried to get contents of iframe and place them in the new place but all handlers ofc dissapear. Tried to do the same, but with new jQuery 1.4.2 feature, that clones all events along with it. But it doesn't work :) So I have decided to ask here for help. How to move the damn iframe to another place in the document without losing it's contents? ^_^ Thanks Added: txtad_iframe = ad_container.find('iframe'); its_contents = txtad_iframe.contents(); its_body = its_contents.find("div:first").clone(true).insertAfter(cthis.find('#photos')); new_ad.append(its_body); Here i'm trying to copy contents to new ad container. But it doesn't work. Context banner doesn't react on click event. I have tried to move ad_container to container, but iframe body content dissapears.

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  • C++ string array from ifstream

    - by David Beck
    I have a program that I need to read in an array of strings from a file. The array must be C type strings (char * or char[]). Using the following code, I get a bad access error: for (i = 0; i < MAX_WORDS && !inputFile.eof(); i++) { inputFile >> words[i]; } words is declared as: char *words[MAX_WORDS];

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  • Javascript looping only through defined properties of array. How?

    - by Beck
    For example if i'm keeping array of references via id like that: if(typeof channel_boards[misc.channel_id] == 'undefined') { channel_boards[misc.channel_id] = $('<div class="channel" channel_id="'+misc.channel_id+'"></div>').appendTo('#board'); } And then i'm looping through array to find required reference. I'm looping through undefined properties as well. Is it possible to loop only through defined properties? for(i=0;i<channel_boards.length;i++) { if(channel_boards[i] != undefined) { if(channel_boards[i].attr('channel_id') != visible) {channel_boards[i].addClass('hidden_board');} else {channel_boards[i].removeClass('hidden_board');} } } Maybe i should change the way i'm storing references? Via object for example, but how i'll be able to find proper reference via id number.

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  • Is this SQL is valid?

    - by Beck
    UPDATE polls_options SET `votes`=`votes`+1, `percent`=ROUND((`votes`+1) / (SELECT voters FROM polls WHERE poll_id=? LIMIT 1) * 100,1) WHERE option_id=? AND poll_id=? Don't have table data yet, to test it properly. :) And by the way, in what type % integers should be stored in database? Thanks for the help!

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  • Mysql question about UPDATE

    - by Beck
    UPDATE counter_reports SET `counter`=`counter`+1,`date`=? WHERE report_id IN( (SELECT report_id FROM counter_reports WHERE report_name="emails_sent" AND `year`=1 ORDER BY report_id DESC LIMIT 1), (SELECT report_id FROM counter_reports WHERE report_name="emails_sent" AND `month`=1 ORDER BY report_id DESC LIMIT 1), (SELECT report_id FROM counter_reports WHERE report_name="emails_sent" AND `week`=1 ORDER BY report_id DESC LIMIT 1), (SELECT report_id FROM counter_reports WHERE report_name="emails_sent" AND `day`=1 ORDER BY report_id DESC LIMIT 1) ) Is there any alternative for such sql? I need to update(increment by 1) last counter reports for day,week,month and year. If I'm adding manually, sql works fine, but with subqueries it fails to launch. Thanks. :)

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  • Grails views for subclasses

    - by Jeff Beck
    I have a domain object called page that only has a title, I then have subclasses what are StaticPage that also has a textblock and PicturePage that contains a url. I have a site object that has many pages, I am looking for a way in the view for the site to call the a different template for each subclass. I can easily iterate through the pages but I would like to call each subclasses own view.

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  • Python read files in directory and concatenate

    - by JJ Beck
    I want to write a Python script that searches all folders in the current directory, looks for all .txt files, and creates a file that is a concatenation of all those files (in any order) in the current directory. If folders have subfolders, it should not search those subfolders. An example is main_folder folder_1 sub_folder file1.txt file2.txt folder_2 file3.txt The script is placed inside main_folder. It should create a file that is a concatenation of file2.txt and file3.txt (in any order) inside main_folder. My question is: How can I tell Python to traverse through the folders, look for .txt files, without going into the subfolders?

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  • Google I/O 2010 - Tech, innovation, CS, & more: A VC panel

    Google I/O 2010 - Tech, innovation, CS, & more: A VC panel Google I/O 2010 - Technology, innovation, computer science, and more: A VC panel Tech Talks Albert Wenger, Chris Dixon, Dave McClure, Brad Feld, Paul Graham, Dick Costolo What do notable tech-minded VCs think about big trends happening today? In this session, you'll get to hear from and ask questions to a panel of well-respected investors, all of whom are programmers by trade. Albert Wenger, Chris Dixon, Dave McClure, Paul Graham, and Brad Feld will duke it out on a number of hot tech topics with Dick Costolo moderating. For all I/O 2010 sessions, please go to code.google.com From: GoogleDevelopers Views: 329 5 ratings Time: 01:00:20 More in Science & Technology

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  • UK SQL Server User Group Events (June)

    There are two events of note for the SQL Server User Group in June.  The first is a Live Meeting event with myself on 04.06.2009.  I am going to be looking at how to integrate Data Mining into your BI solution.  I will be looking at putting DM into SSIS, SSAS and SSRS.  It will be very demo oriented.  You can register for the event here The second event is an event at Microsoft Reading on 10.06.2009.  The evening will be a BI/Data Mining event.  Chris Webb and myself are organizing it and  we want speakers.  We would love to see new faces up there telling us about their BI/DM solutions/Tips and Tricks.  If you want to speak at the event then let me or Chris know.  If you just want to attend then you can register here.

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  • Silverlight Cream for December 09, 2010 -- #1006

    - by Dave Campbell
    In this Issue: Adam Kinney, Jonathan van de Veen, René Schulte(-2-), Vikas, Chad Campbell, Chris Koenig, John Papa, and Martin Krüger. Above the Fold: Silverlight: "Silverlight TV #54: Introducing 11 Brand New Labs" John Papa WP7: "Gestures in Windows Phone 7" Chris Koenig Training: "New Windows Phone 7 tutorials for Designers on toolbox!" Adam Kinney Shoutouts: Jesse Liberty posted ways to get help when you get stuck: Top 10 Tips To Getting Help With Silverlight From SilverlightCream.com: New Windows Phone 7 tutorials for Designers on toolbox! Adam Kinney posted about some WP7 design goodness he's had the opportunity to take part in putting together that is now available for all of us on the Microsoft design Toolbox site.... detailed info about what's there. Adventures while building a Silverlight Enterprise application part #39 Jonathan van de Veen has his latest Silverlight coding adventure detailed on his blog... in the final throes of releasing, he came across some issues surrounding CRUD operations... Windows Phone Unplugged - How to Detect the Zune Software René Schulte has a post up about my two favorite devices: Zune and WP7 ... and how to detect if the Zune software is running when the device is connected to the PC. Issue with the WP7 PictureDecoder and Workaround René Schulte has a second post up today about strange behavior with the PictureDecoder DecodeJpeg method... he describes the problem and a workaround for it. Performance Wizard for Silverlight Vikas reports some Silverlight goodness in the VS2010 SP1 beta that's out ... a Performance Wizard... and he's ratted out it's use and sharing that info... Submitting an App to the Windows Phone Marketplace Chad Campbell details the user experience of getting an app through the marketplace to users... from the standpoint of someone that's been there. Gestures in Windows Phone 7 Chris Koenig is talking about Gestures in WP7, documenting how he used some XNA to get some side-to-side image scrolling going on... and gave us the source! Silverlight TV #54: Introducing 11 Brand New Labs John Papa has his latest Silverlight TV up and he's talking to two great guys: Dan Wahlin and Corey Schuman who have produced the labs you've seen referenced... awesome stuff guys... WP7: precisely position the text cursor when writing text Martin Krüger has a quick WP7 usage tip up for precisely positioning the text cursor in a textbox ... I could have used that today when "Nick's Frame Shop" came up as "Nix Frame Shop" in a search. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • Mobile: Wrox Cross Platform Mobile Development - iPhone, iPad, Android, and everything with .NET & C#

    - by Wallym
    Wrox has produced a bundle of their 3 best selling mobile development books and it is available as of Today (March 16). A bundle of 3 best-selling and respected mobile development e-books from Wrox form a complete library on the key tools and techniques for developing apps across the hottest platforms including Android and iOS. This collection includes the full content of these three books, at a special price: Professional Android Programming with Mono for Android and .NET/C#, ISBN: 9781118026434, by Wallace B. McClure, Nathan Blevins, John J. Croft, IV, Jonathan Dick, and Chris Hardy Professional iPhone Programming with MonoTouch and .NET/C#, ISBN: 9780470637821, by Wallace B. McClure, Rory Blyth, Craig Dunn, Chris Hardy, and Martin Bowling Professional Cross-Platform Mobile Development in C#, ISBN: 9781118157701, by Scott Olson, John Hunter, Ben Horgen, and Kenny Goers Remember, go buy 8-10 copies of the 3 book set for the ones you love. They will make great and romantic gifts!!

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  • Silverlight Cream for June 28, 2011 -- #1112

    - by Dave Campbell
    In this Issue: WindowsPhoneGeek, John Papa, Mike Taulty, Erno de Weerd, Stephen Price, Chris Rouw, Peter Kuhn, Damian Schenkelman, Michael Washington, and Manas Patnaik. Above the Fold: Silverlight: "Binding to View Model properties in Data Templates. The RootBinding Markup Extension" Damian Schenkelman WP7: "Storing Files in SQL Server using WCF RIA Services and Silverlight – Part 3" Chris Rouw LightSwitch: "Saving Files To File System With LightSwitch (Uploading Files)" Michael Washington Shoutouts: Steve Wortham announced a change to his XilverlightXAP.com site... they're now accepting XAML illustrations: Introducing XAML Illustrations, Increased Payouts to Contributors, and More Amid all the discussions that I've tried to avoid, Michael Washinton is Betting The House On LightSwitch From SilverlightCream.com: Dynamically updating a data bound LongListSelector in Windows Phone WindowsPhoneGeek's latest is on using the LongListSelector from the Toolkit and dynamically updating it with data... detailed guidelines and plenty of pictures and code as always. Silverlight TV 77: Exploring 3D with Aaron Oneal John Papa has Silverlight TV number 77 up and is chatting with Aaron Oneal, program manager of the Silverlight 3D efforts... too cool. Silverlight WebBrowser Control for Offline Apps (Part 2) Mike Taulty wrote this post in Silverlight 5 Beta, but says it should be fine in 4... a continuation of his HTML Content display using the WebBrowser control while offline Windows Phone 7: Databinding and the Pivot Control Erno de Weerd discusses the Pivot control in WP7 based on his attempts to use it in an app. Required Attribute on an Entity Stephen Price has a new post at XAML Source... first is this one on setting the required attribute and the troubles you can get into if it's not set correctly Storing Files in SQL Server using WCF RIA Services and Silverlight – Part 3 Chris Rouw has Part 3 of his series on Storing files in SQL Server using FILESTREAM Storage in SQL Server 2008 and Silverlight... this time he's viewing files stored in the FILESTREAM from the LOB app. Getting ready for the Windows Phone 7 Exam 70-599 (Part 4) Peter Kuhn has Part 4 of his series on getting ready for the WP7 exam up at SilverlightShow... the date is coming up soon... are you ready? Binding to View Model properties in Data Templates. The RootBinding Markup Extension Damian Schenkelman has a Silverlight 5 Beta post up... digging into the XAML Markup Extensions and popping out a RootBindingExtensionthat helps bind to a property in a view model from a DataTemplate. Saving Files To File System With LightSwitch (Uploading Files) Michael Washington has a cool tutorial up on his new LightSwitch Help Website... File Upload to a server file system using LightSwitch, plus a project to download... good stuff! Microsoft Media Platform (MMPPF): Player Framework for Silverlight Manas Patnaik's latest post is about the Media Player Project... some of the history of media with Silvelight and how to go about using the Media Player Project bits Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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  • UK SQL Server User Group Events (June)

    There are two events of note for the SQL Server User Group in June.  The first is a Live Meeting event with myself on 04.06.2009.  I am going to be looking at how to integrate Data Mining into your BI solution.  I will be looking at putting DM into SSIS, SSAS and SSRS.  It will be very demo oriented.  You can register for the event here The second event is an event at Microsoft Reading on 10.06.2009.  The evening will be a BI/Data Mining event.  Chris Webb and myself are organizing it and  we want speakers.  We would love to see new faces up there telling us about their BI/DM solutions/Tips and Tricks.  If you want to speak at the event then let me or Chris know.  If you just want to attend then you can register here.

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  • Oracle is sponsoring LinuxCon Japan 2012

    - by Zeynep Koch
    LinuxCon Japan is the premiere Linux conference in Asia that brings together a unique blend of core developers, administrators, users, community managers and industry experts. It is designed not only to encourage collaboration but to support future interaction between Japan and other Asia Pacific countries and the rest of the global Linux community. The conference includes presentations, tutorials, birds of a feather sessions, keynotes, sponsored mini-summits. LinuxCon Japan will be showcasing Oracle Linux in  following sessions, as well as Technology Showcase booth.  Wednesday, June 6: 2:00 pm - Btrfs Filesystems : Status and New Features, Chris Mason, Oracle, Room 502 Friday, June 8: 3:00 pm - State of Linux Kernel Security Subsystem, James Morris, Oracle, Room 502 5:25 pm - International/Asian Kernel Developer Panel that features Oracle's Chris Mason Register to attend these great sessions.

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  • Speaking at SQLRelay. Will you be there?

    - by jamiet
    SQL Relay (#sqlrelay) is fast approaching and I wanted to take this opportunity to tell you a little about it.SQL Relay is a 5-day tour around the UK that is taking in five Server Server user groups, each one comprising a full day of SQL Server related learnings. The dates and venues are:21st May, Edinburgh22nd May, Manchester23rd May, Birmingham24th May, Bristol30th May, LondonClick on the appropriate link to see the full agenda and to book your spot.SQL Relay features some of this country's most prominent SQL Server speakers including Chris Webb, Tony Rogerson, Andrew Fryer, Martin Bell, Allan Mitchell, Steve Shaw, Gordon Meyer, Satya Jayanty, Chris Testa O'Neill, Duncan Sutcliffe, Rob Carrol, me and SQL Server UK Product Manager Morris Novello so I really encourage you to go - you have my word it'll be an informative and, more importantly, enjoyable day out from your regular 9-to-5.I am presenting my session "A Lap Around the SSIS Catalog" at Edinburgh and Manchester so if you're going, I hope to see you there.@Jamiet

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  • REGISTER TODAY: Oracle Linux Online Forum, March 27

    - by Zeynep Koch
    Online Forum Showcases Technology Innovations and Strategic Value of Oracle Linux Join us for a series of information-rich Webcasts and “Live Online Chat” with some of the most knowledgeable Linux experts. Fresh off Oracle’s launch of Oracle Linux with the latest Unbreakable Enterprise Kernel Release 2, we’ll cover a host of key technology and strategic developments. Agenda:  1) 9:30 - 9:45 am PT :  Keynote: Leading Innovations in Enterprise Linux hosted by Oracle Executives Speakers: Edward Screven, Wim Coekaerts 2) 9:45 - 10:00 am PT Customer Presentation: How Oracle Helps Reduce Cost and Improve Performance of Database Applications at Progressive Insurance Speaker: John Dome 3) 10:00 - 11:00 am PT What's New in Oracle Linux Speakers: Waseem Daher, Chris Mason, Elena Zannoni, Lenz Grimmer 4) 11:00 am - 12:00 pm PT Get More Value from your Linux Vendor Speakers: Sergio Leunissen, Chris Mason, Monica Kumar Register today

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  • Justifiable Perks.

    - by Phil Factor
        I was once the director of a start-up IT Company, and had the task of recruiting a proportion of the management team. As my background was in IT management, I was rather more familiar with recruiting Geeks for technology jobs, but here, one of my early tasks was interviewing a Marketing Director.  The small group of financiers had suggested a rather strange Irishman called  Halleran.  From my background in City of London dealing-rooms, I was slightly unprepared for the experience of interviewing anyone wearing a pink suit. Many of my older City colleagues would have required resuscitation after seeing his white leather shoes. However, nobody will accuse me of prejudging an interviewee. After all, many Linux experts who I’ve come to rely on have appeared for interview dressed as hobbits. In fact, the interview went well, and we had even settled his salary.  I was somewhat unprepared for the coda.    ‘And I will need to be provided with a Ferrari  by the company.’    ‘Hmm. That seems reasonable.’    Initially, he looked startled, and then a slow smile of victory spread across his face.    ‘What colour would you like?’ I asked genially.    ‘It has to be red.’ He looked very earnest on this point.    ‘Fine. I have to go past Hamleys on the way home this evening, so I’ll pick one up then for you.’    ‘Er.. Hamley’s is a toyshop, not a Ferrari Dealership.’    I stared at him in bafflement for a few seconds. ‘You’re not seriously asking for a real Ferrari are you?’     ‘Well, yes. Not for my own sake, you understand. I’d much prefer a simple run-about, but my position demands it. How could I maintain the necessary status in the office without one? How could I do my job in marketing when my grey Datsun was all too visible in the car Park? It is a tool of the job.’    ‘Excuse me a moment, but I must confer with the MD’    I popped out to see Chris, the MD. ‘Chris, I’m interviewing a lunatic in a pink suit who is trying to demand that a Ferrari is a precondition of his employment. I tried the ‘misunderstanding trick’ but it didn’t faze him.’     ‘Sorry, Phil, but we’ve got to hire him. The VCs insist on it. You’ve got to think of something that doesn’t involve committing to the purchase of a Ferrari. Current funding barely covers the rent for the building.’    ‘OK boss. Leave it to me.’    On return, I slapped O’Halleran’s file on the table with a genial, paternalistic smile. ‘Of course you should have a Ferrari. The only trouble is that it will require a justification document that can be presented to the board. I’m sure you’ll have no problem in preparing this document in the required format.’ The initial look of despair was quickly followed by a bland look of acquiescence. He had, earlier in the interview, argued with great eloquence his skill in preparing the tiresome documents that underpin the essential corporate and government deals that were vital to the success of this new enterprise. The justification of a Ferrari should be a doddle.     After the interview, Chris nervously asked how I’d fared.     ‘I think it is all solved.’    ‘… without promising a Ferrari, I hope.’    ‘Well, I did actually; on condition he justified it in writing.’    Chris issued a stream of invective. The strain of juggling the resources in an underfunded startup was beginning to show.    ‘Don’t worry. In the unlikely event of him coming back with the required document, I’ll give him mine.’    ‘Yours?’ He strode over to the window to stare down at the car park.    He needn’t have worried: I knew that his breed of marketing man could more easily lay an ostrich egg than to prepare a decent justification document. My Ferrari is still there at the back of my garage. Few know of the Ferrari cultivator, a simple inexpensive motorized device designed for the subsistence farmers of southern Italy. It is the very devil to start, but it creates a perfect tilth for the seedbed.

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  • Silverlight Cream for November 17, 2011 -- #1168

    - by Dave Campbell
    In this Issue: Colin Eberhardt, Lazar Nikolov, WindowsPhoneGeek, Jesse Liberty, Peter Kuhn, Derik Whittaker, Chris Koenig, and Jeff Blankenburg(-2-). Above the Fold: Silverlight: "Facebook Graph API and Silverlight Part 2 – Publishing data" Lazar Nikolov WP7: "Suppressing Zoom and Scroll interactions in the Windows Phone 7 WebBrowser Control" Colin Eberhardt Metro/WinRT/W8: "Tip/Trick when working with the Application Bar in WinRT/Metro (C#)" Derik Whittaker Shoutouts: Michael Palermo's latest Desert Mountain Developers is up Michael Washington's latest Visual Studio #LightSwitch Daily is up Pete Brown announced the completion of his book: It’s a wrap! I’ve completed writing Silverlight 5 in Action From SilverlightCream.com: Suppressing Zoom and Scroll interactions in the Windows Phone 7 WebBrowser Control Colin Eberhardt's latest post is all about a helper class he wrote to suppress scrolling and pinch zoom of the WP7 browser control, which you might want to do if the browser is placed inside another control. Facebook Graph API and Silverlight Part 2 – Publishing data In this part 2 of his Facebook and Silverlight series, Lazar Nikolov shows how to post data to your profile or your friends' profiles Localizing a Windows Phone app Step by Step WindowsPhoneGeek's latest post is on Localizing a WP7 app .. another great tutorial with plenty of discussion, pictures, and a project to load up and follow Background Audio Part II: Copying Audio Files To Isolated Storage Continuing his WP7 series, Jesse Liberty has Part 2 of a mini-series on Background Audio up... in this episode he's using local audio and to do so, it must be in ISO Silverlight: Bugs in the multicast client In a Q/A session, Peter Kuhn was presented a nasty bug in the multicast client that he has verified exists in not only Silverlight 4 but also Silverlight 5 Beta, including a link to his entry on Connect. Tip/Trick when working with the Application Bar in WinRT/Metro (C#) Derik Whittaker offers up some good information about the Metro Application Bar and how to keep it where you want it New! Windows Phone Starter Kit for Podcasts Chris Koenig announced the release of a new starter kit for WP7... a starter kit for podcasts. Check out the links on Chris' site and the other two starter kits that are available 31 Days of Mango | Day #4: Compass Jeff Blankenburg continues with Day 4 of his Mango series with this post on the Compass and a cool app to demonstrate it 31 Days of Mango | Day #5: Gyroscope In Day 5, Jeff Blankenburg is talking about and discussing the gyroscope, of course if you have a phone as old as mine, you won't have a gyroscope and it's not on the emulator Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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