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Silverlight Cream for January 30, 2011 -- #1037

- by Dave Campbell

In this Issue: Ollie Riches, Colin Eberhardt, Andrej Tozon, Arik Poznanski, Deborah Kurata(-2-), Jay Kimble, Yochay Kiriaty, Peter Kuhn, Mike Ormond, WindowsPhoneGeek(-2-), and Matthias Shapiro. Above the Fold: Silverlight: "Missing Chart Legend" Deborah Kurata WP7: "XNA for Silverlight developers: Part 2 - Text rendering" Peter Kuhn Shoutouts: Timmy Kokke has a post up discussing What’s new in the Expression Design January 2011 preview? From SilverlightCream.com: WP7Contrib: Thread safe ObservableCollection<T> Ollie Riches, one of the two originators of WP7Contrib, has a post up on the WP7C ObservableCollection... what and why. Windows Phone 7 DeferredLoadContentControl Colin Eberhardt's latest is one we should all take notice of... a content control that defers rendering to provide a better user experience... source code is available as are some good external links Andrej Tozon on Hey weigh! WP7 application SilverlightShow interviews WP7 Dev Andrej Tozon and gets his take on his app, challenges, tips, and the future of WP7. A ProgressBar With Text For Windows Phone 7 Arik Poznanski demonstrates putting text up on the progress bar to let your users know what you're up to... and it looks great in the screenshots. Charting in a Silverlight Application using MVVM Deborah Kurata is checking out the Charting control this time around... using the charting control from the toolbox in the MVVM app she built in the last post... C# and VB code as always. Missing Chart Legend Deborah Kurata's latest in the world of Charting and MVVM involves using a custom theme and having your chart legend disappear... never fear, she's gonna tell you how to fix that! Silverlight/WP7 tip: Detecting when in VS Design Mode Jay Kimble has a post up that not only resolves a question you may need answered during development (are you in VS design Mode), but it also helps resolve a class of problem that Jay explains. Windows Phone GPS Emulator Yochay Kiriaty points out that while part of the issues of building a GPS-driven app for WP7 is getting your head around the tools, the next hurdle is testing... and that's what he's really discussing... "Windows Phone GPS Emulator" ... if you're playing with the GPS, you'll want this. XNA for Silverlight developers: Part 2 - Text rendering Peter Kuhn's latest tutorial in his XNA series for Silverlight developers is up at SilverlightShow... in this tutorial, Peter discusses text... it's a vastly different game displaying text in XNA as compared to Silverlight ... check it out and see. OData and Windows Phone 7 Mike Ormond starts you off using OData on your WP7 by showing where to download the libraries, and not stopping until he has an app running that reads an OData feed, plus he plans on continuing the quest in future posts. WP7 ProgressOverlay control in depth: features and customization WindowsPhoneGeek has a couple new posts up. The first one is an in-depth look at the ProgressOverlay control in the Codeing4fun Toolkit... pretty cool to be able to put your logo or app logo up. On Testing Windows Phone 7 Applications – Part II: Dealing with the WP7 Application Model WindowsPhoneGeek also has 5 more WP7 testing tips... and these are a little more technical than the first set, and includes some good external links. Topics include: Tombstoning, Usability, Navigation, Capabilities, and Memory consumption. Fun Theme-Friendly Windows Phone Icon Matthias Shapiro explains how to have your WP7 icon change based on the theme your user has chosen... great examples, and XAML included 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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Silverlight Cream for January 30, 2011 - 2 -- #1038

- by Dave Campbell

In this Issue: Max Paulousky, Renuka Prasad, Ollie Riches, Jesse Liberty(-2-, -3-, -4-, -5-), Medusa M, John Papa, Beth Massi, and Joost van Schaik. Above the Fold: Silverlight: "Stop What You Are Doing And Learn About Reactive Programming" Jesse Liberty WP7: "Windows Phone Looping Selector for Digits " Max Paulousky Lightswitch: "How To Send HTML Email from a LightSwitch Application" Beth Massi Shoutouts: Shawn Wildermuch has niether GooNews for users of his cool WP7 app or or for the WP7 Marketplace in general: R.I.P. GooNews From SilverlightCream.com: Windows Phone Looping Selector for Digits Max Paulousky expanded on the Looping selector for some customization allowing him to display width/height metric measurement selectors... great job, Max! WP7 – How to Create a Simple Checked Listbox In Windows Phone 7 Renuka Prasad has the code for a nicely-working checked Listbox for WP7 on his blog... the post is the code... WP7Contrib: Network Connectivity Push Model Ollie Riches had a post last week that I'm just catching up to... about the 'push model' for network connectivity they produced in WP7 Contrib. Using the Camera in Windows Phone 7 Jesse Liberty has a bunch of posts up... I'm just going to bite the bullet and catch up! ... this 'From Scratch post 24 is all about the camera in your WP7 dev travails... and he makes it look so darned easy :) Linq and Fluent Programming Jesse Liberty's next post is 'From Scratch 25 and is all about Linq and Fluent Programming which started with a discussion at Codemash with Bill Wagner... wanna get a handle on fluent programming? ... check this out. Stop What You Are Doing And Learn About Reactive Programming Another item you might want to get your head around is Reactive Programming, or Rx... Jesse Liberty has a great post up discussing this, as his 'From Scratch post 26... good external links, and lots of commentary as well. Rx–Reactive Programming for Windows Phone Jesse Liberty's 'From Scratch 27 follows the previous on about Rx by taking the Rx show to the WP7 development arena. Want a solid Rx example... here ya go! Reactive Extensions–Observable Sequences are First Class Objects Finally catching up with Jesse Liberty (for now), I find this 'From Scratch number 28 which is again on Rx and WP7 dev, expanding on the example from the previous post by harnessing the power of Rx Localizing Silverlight applications Medusa M has a nice post up at dotnetslackers on localization in Silverlight. If you haven't had to do localization before, it can get to be a pain... understanding an article like this will get you part of the way to being pain-free. Silverlight TV 59: What Goes Into Baking Silverlight? Very cool presentation for those of you interested in the bits ... John Papa's Silverlight TV number 59 is up and he's chatting with Andy Rivas about the process followed getting the bits to us. How To Send HTML Email from a LightSwitch Application Beth Massi's latest Lightswitch post is on sending HTML Email via SMTP from Lightswitch, and then follows that up with sending Email via Outlook automation. ViewModel driven animations using the Visual State Manager, DataStateBehavior and Expression Blend After some good user feedback, Joost van Schaik decided to make some modifications to his WP7 app, and got involved in a Page Title collapse animation driven from the ViewModel. Check out the nice write-up, video, external links, and source... all good! 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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Silverlight Cream for February 09, 2011 -- #1044

- by Dave Campbell

In this Issue: Vikas, Tony Champion, Peter Kuhn, Ollie Riches, Rich Griffin, Rob Eisenberg, Andrea Boschin, Rudi Grobler(-2-), Jesse Liberty, Dan Wahlin, Roberto Sonnino, Deborah Kurata. Above the Fold: Silverlight: "Silverlight double click event" Vikas WP7: "Logging in Silverlight and WP7 with MVVM Light" Tony Champion XNA: "XNA for Silverlight developers: Part 3 - Animation (transforms)" Peter Kuhn Shoutouts: Vikas deserves congratulations for passing the beta Silverlight 4 exam, but in the process he has a great list of resources to help you do the same: Exam 70-506 ( TS: Silverlight 4, Development ) From SilverlightCream.com: Silverlight double click event Vikas demonstrates 3 ways to come up with a double-click in Silverlight: Timer, Rx Framework, and Behavior with code for each. Logging in Silverlight and WP7 with MVVM Light Tony Champion is discussing logging... and since he finds himself doing it in every project, he's setting up an extensible solution he can reuse and is doing so with MVVMLight XNA for Silverlight developers: Part 3 - Animation (transforms) Peter Kuhn has part 3 of his XNA for WP7 series up at SilverlightShow. In this 3rd tutorial, Peter is discussing animation with Transformations.... remember... this is XNA! WP7Contrib: Location Push Model Ollie Riches posts from the WP7C and discusses how they provide an interface for location service by abstracting away the GeoCoordinateWatcher class and provide a clean push model using the IObservable as the return types for all variants. WP7 Contrib – When messaging becomes messy and services shine Rich Griffin pulls another post up from WP7C where he discusses swapping out using Service Styles rather than Messenger Styles... in his words "when we start getting friction trying to bend the framework api to do something that it was not really meant for its time to use something [that] solves the problem better" Herding Code 104: Rob Eisenberg on Caliburn Micro Rob Eisenberg is interviewed on the latest Herding Code, talking about his baby, Caliburn Micro, and tons of other stuff as well... just check out the list of links generated for this show. Windows Phone 7 - Part #4: The application lifecycle Andrea Boschin has part 4 of his WP7 tutorial series up at SilverlightShow... In this tutorial he does a complete run-down the the WP7 Application Life-Cycle Simple Error Reporting on WP7 Rudi Grobler has a code snippet up that, with the end-user's permission of course, emails problem reports back to you... very cool idea. Simple Error Reporting on WP7 REDUX Rudi Grobler demonstrates using the Coding4Fun toolkit to display an exception prompt to the user... and then possibly email the report to you..see Rudi's other post on that. Creating An Application Bar–Don’t Panic In his latest (number 31) WP7 From Scratch episode, Jesse Liberty takes on the ApplicationBar, and uses Blend to get the job done easier. Syncing Data with a Server using Silverlight and HTTP Polling Duplex Dan Wahlin revisits some older posts of his about Push technologies in Silverlight, and provides some great insight (and code) into Http Polling Duplex Quick WPF/Silverlight tips to make great videos of your apps Roberto Sonnino has some great tips on making awesome videos of your WPF or Silverlight app. Simple Silverlight MVVM Base Class Deborah Kurata has her take at a good MVVM base class as the subject of her latest post... good points and good code. 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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Silverlight Cream for February 02, 2011 -- #1039

- by Dave Campbell

In this Issue: Tony Champion, Gill Cleeren, Alex van Beek, Michael James, Ollie Riches, Peter Kuhn, Mike Ormond, WindowsPhoneGeek(-2-), Daniel N. Egan, Loek Van Den Ouweland, and Paul Thurott. Above the Fold: Silverlight: "Using the AutoCompleteBox" Peter Kuhn WP7: "Windows Phone Image Button" Loek Van Den Ouweland Training: "New WP7 Virtual Labs" Daniel N. Egan Shoutouts: SilverlightShow has their top 5 most popular news articles up: SilverlightShow for Jan 24-30, 2011 Rudi Grobler posted answers he gives to questions about Silverlight - Where do I start? Brian Noyes starts a series of Webinars at SilverlightShow this morning at 10am PDT: Free Silverlight Show Webinar: Querying and Updating Data From Silverlight Clients with WCF RIA Services Join your fellow geeks at Gangplank in Chandler Arizona this Saturday as Scott Cate and AZGroups brings you Azure Boot Camp – Feb 5th 2011 From SilverlightCream.com: Deploying Silverlight with WCF Services Tony Champion takes a step out of his norm (Pivot) and has a post up about deploying WCF Services with your SL app, and how to take the pain out of that without pulling out your hair. Getting ready for Microsoft Silverlight Exam 70-506 (Part 3) Gill Cleeren's part 3 of getting ready for the Silverlight Exam is up at SilverlightShow... with links to the first two parts. There's so much good information linked off these... thanks Gill and 'The Show'! A guide through WCF RIA Services attributes Alex van Beek has a post up you will probably want to bookmark unless you're not using WCF RIA... do you know all the attributes by heart? ... how about an excellent explanation of 10 of them? Using DeferredLoadListBox in a Pivot Control Michael James discusses using the DeferredLoadListBox, and then also using it with the Pivot control... but not without some pain points which he defines and gives the workaround for. WP7: Know your data Ollie Riches' latest is about Data and WP7 ... specifically 'knowing' what data you're needing/using to avoid the 90MB memory limit... He gives a set of steps to follow to measure your data model to avoid getting in trouble. Using the AutoCompleteBox Peter Kuhn takes a great look at the AutoCompleteBox... the basics, and then well beyond with custom data, item templates, custom filters, asynchronous filtering, and a behavior for MVVM async filtering. OData and Windows Phone 7 Part 2 Mike Ormond has part 2 of his OData/WP7 post up... lashing up the images to go along with the code this time out... nice looking app. WP7 RoundToggleButton and RoundButton in depth WindowsPhoneGeek is checking out the RoundToggleButton and RoundButton controls from the Coding4fun Toolkit in detail... of course where to get them, and then the setup, demo project included. All about Dependency Properties in Silverlight for WP7 WindowsPhoneGeek's latest post is a good dependency-property discussion related to WP7 development, but if you're just learning, it's a good place to learn about the subject. New WP7 Virtual Labs Daniel N. Egan posted links to 6 new WP7 Virtual Labs released on 1/25. Windows Phone Image Button Loek Van Den Ouweland has a style up on his blog that gives you an imageButton for your WP7 apps, and a sweet little video showing how it's done in Expression Blend too. Yet another free Windows Phone book for developers Paul Thurott found a link to another Free eBook for WP7 development. This one is by Puja Pramudya and is an English translation of the original, and is an introductory text, but hey... it's free... give it a look! 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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Silverlight Cream for February 21, 2011 -- #1049

- by Dave Campbell

In this Issue: Rob Eisenberg(-2-), Gill Cleeren, Colin Eberhardt, Alex van Beek, Ishai Hachlili, Ollie Riches, Kevin Dockx, WindowsPhoneGeek(-2-), Jesse Liberty(-2-), and John Papa. Above the Fold: Silverlight: "Silverlight 4: Creating useful base classes for your views and viewmodels with PRISM 4" Alex van Beek WP7: "Google Sky on Windows Phone 7" Colin Eberhardt Shoutouts: My friends at SilverlightShow have their top 5 for last week posted: SilverlightShow for Feb 14 - 20, 2011 From SilverlightCream.com: Rob Eisenberg MVVMs Us with Caliburn.Micro! Rob Eisenberg chats with Carl and Richard on .NET Rocks episode 638 about Caliburn.Micro which takes Convention-over-Configuration further, utilizing naming conventions to handle a large number of data binding, validation and other action-based characteristics in your app. Two Caliburn Releases in One Day! Rob Eisenberg also announced that release candidates for both Caliburn 2.0 and Caliburn.Micro 1.0 are now available. Check out the docs and get the bits. Getting ready for Microsoft Silverlight Exam 70-506 (Part 6) Gill Cleeren has Part 6 of his series on getting ready for the Silverlight Exam up at SilverlightShow.... this time out, Gill is discussing app startup, localization, and using resource dictionaries, just to name a few things. Google Sky on Windows Phone 7 Colin Eberhardt has a very cool WP7 app described where he's using Google Sky as the tile source for Bing Maps, and then has a list of 110 Messier Objects.. interesting astronomical objects that you can look at... all with source! Silverlight 4: Creating useful base classes for your views and viewmodels with PRISM 4 Alex van Beek has some Prism4/Unity MVVM goodness up with this discussion of a login module using View and ViewModel base classes. Windows Phone 7 and WCF REST – Authentication Solutions Ishai Hachlili sent me this link to his post about WCF REST web service and authentication for WP7, and he offers up 2 solutions... from the looks of this, I'm also putting his blog on my watch list WP7Contrib: Isolated Storage Cache Provider Ollie Riches has a complete explanation and code example of using the IsolatedStorageCacheProvider in their WP7Contrib library. Using a ChannelFactory in Silverlight, part two: binary cows & new-born calves Kevin Dockx follows-up his post on Channel Factories with this part 2, expanding the knowledge-base into usin parameters and custom binding with binary encoding, both from reader suggestions. All about UriMapping in WP7 WindowsPhoneGeek has a post up about URI mappings in WP7 ... what it is, how to enable it in code behind or XAML, then using it either with a hyperlink button or via the NavigationService class... all with code. Passing WP7 Memory Consumption requirements with the Coding4Fun MemoryCounter tool WindowsPhoneGeek's latest is a tutorial on the use of the Memory Counter control from the Coding4Fun toolkit and WP7 Memory consumption. Getting Started With Linq Jesse Liberty gets into LINQ in his Episode 33 of his WP7 'From Scratch' series... looks like a good LINQ starting point, and he's going to be doing a series on it. Linq with Objects In his second post on LINQ, Jesse Liberty is looking at creating a Linq query against a collection of objects... always good stuff, Jesse! Silverlight TV Silverlight TV 62: The Silverlight 5 Triad Unplugged John Papa is joined by Sam George, Larry Olson, and Vijay Devetha (the Silverlight Triad) on this Silverlight TV episode 62 to discuss how the team works together, and hey... they're hiring! 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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NoClassDefFoundError when trying to reference external jar files

- by opike

I have some 3rd party jar files that I want to reference in my tomcat web application. I added this line to catalina.properties: shared.loader=/home/ollie/dev/java/googleapi_samples/gdata/java/lib/*.jar but I'm still getting this error: org.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/google/gdata/util/ServiceException org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:491) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:401) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) I verified that the com.google.gdata.util.ServiceException is in the gdata-core-1.0.jar file which is in the directory: /home/ollie/dev/java/googleapi_samples/gdata/java/lib I did bounce tomcat after I modified catalina.properties. Update 1: I tried copying the gdata-core-1.0.jar file into /var/lib/tomcat6/webapp/examples/WEB-INF/lib as a test but that didn't fix the problem either. Update 2: It actually does work when I copy the jar file directly into the WEB-INF/lib directory. There was a permissions issue that I had to resolve. But it's still not working when I use the shared.loader setting. I reconfirmed that the path is correct.

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Nhibernate Criteria: 'select max(id)...'

- by AWC

Can I use a Criteria to execute a t-sql command to select the max value for a column in a table? 'select @cus_id = max(id) + 1 from customers' Ta Ollie

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RTS Movement + Navigation + Destination

- by Oliver Jones

I'm looking into building my own simple RTS game, and I'm trying to get my head around the movement of single, and multi selected units. (Developing in Unity) After much research, I now know that its a bigger task than I thought. So I need to break it down. I already have an A* navigation system with static obstacles taken into account. I don't want to worry about dynamic local avoidance right now. So I guess my first break down question would be: How would I go about moving mutli units to the same location. Right now - my units move to the location, but because they're all told to go to the same location, they start to 'fight' over one another to get there. I think theres two paths to go down: 1) Give each individual unit a separate destination point that is close to the 'master' destination point - and get the units to move to that. 2) Group my selected units in a flock formation, and move that entire flock group towards the destination point. Question about each path: 1a) How can I go about finding a suitable destination point that is close to the master destination? What happens if there isn't a suitable destination point? 1b) Would this be more CPU heavy? As it has to compute a path for each unit? (40 unit count). 2a) Is this a good idea? Not giving the units themselves a destination, but instead the flock (which holds the units within). The units within the flock could then maintain a formation (local avoidance) - though, again local avoidance is not an issue at this current time. 2b) Not sure what results I would get if I have a flock of 5 units, or a flock of 40 units, as the radius would be greater - which might mess up my A* navigation system. In other words: A flock of 2 units will be able to move down an alleyway, but a flock of 40 wont. But my nav system won't take that into account. I would appreciate any feedback. Kind regards, Ollie Jones

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xslt cookbook example not working

- by Liza dawson

Hi I am working on this from xslt cookbook type my.xml <?xml version="1.0" encoding="UTF-8"?> <people> <person name="Al Zehtooney" age="33" sex="m" smoker="no"/> <person name="Brad York" age="38" sex="m" smoker="yes"/> <person name="Charles Xavier" age="32" sex="m" smoker="no"/> <person name="David Williams" age="33" sex="m" smoker="no"/> <person name="Edward Ulster" age="33" sex="m" smoker="yes"/> <person name="Frank Townsend" age="35" sex="m" smoker="no"/> <person name="Greg Sutter" age="40" sex="m" smoker="no"/> <person name="Harry Rogers" age="37" sex="m" smoker="no"/> <person name="John Quincy" age="43" sex="m" smoker="yes"/> <person name="Kent Peterson" age="31" sex="m" smoker="no"/> <person name="Larry Newell" age="23" sex="m" smoker="no"/> <person name="Max Milton" age="22" sex="m" smoker="no"/> <person name="Norman Lamagna" age="30" sex="m" smoker="no"/> <person name="Ollie Kensington" age="44" sex="m" smoker="no"/> <person name="John Frank" age="24" sex="m" smoker="no"/> <person name="Mary Williams" age="33" sex="f" smoker="no"/> <person name="Jane Frank" age="38" sex="f" smoker="yes"/> <person name="Jo Peterson" age="32" sex="f" smoker="no"/> <person name="Angie Frost" age="33" sex="f" smoker="no"/> <person name="Betty Bates" age="33" sex="f" smoker="no"/> <person name="Connie Date" age="35" sex="f" smoker="no"/> <person name="Donna Finster" age="20" sex="f" smoker="no"/> <person name="Esther Gates" age="37" sex="f" smoker="no"/> <person name="Fanny Hill" age="33" sex="f" smoker="yes"/> <person name="Geta Iota" age="27" sex="f" smoker="no"/> <person name="Hillary Johnson" age="22" sex="f" smoker="no"/> <person name="Ingrid Kent" age="21" sex="f" smoker="no"/> <person name="Jill Larson" age="20" sex="f" smoker="no"/> <person name="Kim Mulrooney" age="41" sex="f" smoker="no"/> <person name="Lisa Nevins" age="21" sex="f" smoker="no"/> </people> type generic-attr-to-csv.xslt <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:csv="http://www.ora.com/XSLTCookbook/namespaces/csv"> <xsl:param name="delimiter" select=" ',' "/> <xsl:output method="text" /> <xsl:strip-space elements="*"/> <xsl:template match="/"> <xsl:for-each select="$columns"> <xsl:value-of select="@name"/> <xsl:if test="position( ) != last( )"> <xsl:value-of select="$delimiter/> </xsl:if> </xsl:for-each> <xsl:text>
</xsl:text> <xsl:apply-templates/> </xsl:template> <xsl:template match="/*/*"> <xsl:variable name="row" select="."/> <xsl:for-each select="$columns"> <xsl:apply-templates select="$row/@*[local-name(.)=current( )/@attr]" mode="csv:map-value"/> <xsl:if test="position( ) != last( )"> <xsl:value-of select="$delimiter"/> </xsl:if> </xsl:for-each> <xsl:text>
</xsl:text> </xsl:template> <xsl:template match="@*" mode="map-value"> <xsl:value-of select="."/> </xsl:template> </xsl:stylesheet> type my.xsl <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:csv="http://www.ora.com/XSLTCookbook/namespaces/csv"> <xsl:import href="generic-attr-to-csv.xslt"/>  <xsl:variable name="columns" select="document('')/*/csv:column"/> <csv:column name="Name" attr="name"/> <csv:column name="Age" attr="age"/> <csv:column name="Gender" attr="sex"/> <csv:column name="Smoker" attr="smoker"/>  <xsl:template match="@sex" mode="csv:map-value"> <xsl:choose> <xsl:when test=".='m'">male</xsl:when> <xsl:when test=".='f'">female</xsl:when> <xsl:otherwise>error</xsl:otherwise> </xsl:choose> </xsl:template> </xsl:stylesheet> using the apache xalan parser D:\Test>java org.apache.xalan.xslt.Process -in my.xml -xsl my.xsl -out my.csv [Fatal Error] generic-attr-to-csv.xslt:15:6: The value of attribute "select" associated with an element type "xsl:v alue-of" must not contain the '<' character. file:///D:/Test/generic-attr-to-csv.xslt; Line #15; Column #6; org.xml.sax.SAXParseException: The value of attribut e "select" associated with an element type "xsl:value-of" must not contain the '<' character. java.lang.NullPointerException at org.apache.xalan.transformer.TransformerImpl.createSerializationHandler(TransformerImpl.java:1171) at org.apache.xalan.transformer.TransformerImpl.createSerializationHandler(TransformerImpl.java:1060) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1268) at org.apache.xalan.transformer.TransformerImpl.transform(TransformerImpl.java:1251) at org.apache.xalan.xslt.Process.main(Process.java:1048) Exception in thread "main" java.lang.RuntimeException at org.apache.xalan.xslt.Process.doExit(Process.java:1155) at org.apache.xalan.xslt.Process.main(Process.java:1128) Any ideas what am i doing wrong

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