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• Android: Programmatically move between images in Gallery widget

  - by bdls

  I'd like to programmatically move between images in the Gallery widget, with animation. I can change the currently displaying image using the setSelection(int position) method, however that does not animate. Then there's setSelection(int position, bool animate) but the extra boolean on the end there doesn't appear to do anything. In the source of Gallery it appears that it can handle DPAD key-presses, so a work-around I thought of was to fake the key-presses. Eg. dispatchKeyEvent(new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_DPAD_LEFT)) However I can't get this working for some reason. Anyone tried this? I notice three of the widget's methods I'd love to use moveNext(), movePrevious() and scrollToChild() are all private and unusable. Does anyone know how I might be able to do this?

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• Ajax, Lizard Brain Web Design, JSF, Struts, JavaScript, Mobile Web, Flash, jQuery, GWT, Harmony at I

  - by Kim Won

  Great Indian Developer Summit 2010 – India's Biggest Polyglot Conference and Workshops for IT Software Professionals Bangalore, April 9, 2010: The GIDS.Web Conference and Workshops has announced the complete program of over 30 sessions on how browser and rich web technologies such as AJAX, DHTML, Mashups, Web 2.0, Enterprise 2.0 technologies, and Rich UI technologies are making money and gaining market-share for some of the leading businesses in the world. The GIDS.Web track at Great Indian Developer Summit takes place 21 and 23 April 2010, at the Indian Institute of Science in Bangalore. As one of the longest running independent developer conferences in India, GIDS.Web at the Great Indian Developer Summit 2010 is uniquely positioned to provide a blend of practical, pragmatic and immediately applicable knowledge and a glimpse of the future of technology. During 21 and 23 April 2010, GIDS.Web offers a multi-track conference, workshops, expo show floor, and networking opportunities. The first keynote at GIDS.Web is led by the leading Java EE and Ajax developer, speaker, and author Marty Hall. The best of India's Java and RIA programmers have learnt the subject from Marty's seminal books Core Servlets and JavaServer Pages (first and second editions), More Servlets and JavaServer Pages, and Core Web Programming (first and second editions) from Prentice Hall and Sun Microsystems Press. Marty's keynote address is a comparison of approaches to building rich Internet applications with Ajax. Marty says Ajax development is difficult, and there are several fundamentally different strategies to building Ajaxified Web applications. The keynote address will survey the three most important of these approaches: using an Ajax-enabled JavaScript library such as jQuery, Prototype, Scriptaculous, Dojo, or Ext/JS; using a Web framework such as JSF 2.0 or Struts 2 that has integrated Ajax support; using the Google Web Toolkit (GWT) to build "pure Java" Ajax applications. The talk will compare and contrast these three approaches, discussing the types of applications that fit best for each option. Over the course of the summit Marty will conduct several more sessions on "Choosing an Ajax/JavaScript Toolkit: A Comparison of the Most Popular JavaScript Libraries", "Pure Java Ajax: An Overview of GWT 2.0", "Integrated Ajax Support in JSF 2.0" and "Ajax Support in the Prototype JavaScript Library". The second keynote by the head of Adobe's Flash initiative in India, Ramesh Srinivasaraghavan, explores the state of art in web application development and identify trends that could transform the way we create and use web applications. The talk explains how the Adobe Flash Platform has fuelled this revolution with an integrated set of technologies for delivering the most compelling applications, content and video to the widest possible audience. The Director of Forum Nokia will explain how cloud computing coupled with mobile applications enable consumers to have access to powerful services and improved user experiences never before thought possible. IEEE's 2010 President-Elect Sorel Reisman's afternoon address steps to improve the IT profession in India. Featured talks at GID.Web also include: Web 2.0 Checklist - Deconstructing Modern Websites, Scott Davis Choosing an Ajax/JavaScript Toolkit: Comparison of Popular JavaScript Libraries, Marty Hall Lizard Brain Web Design, Scott Davis Effective Design Processes and Resources for Mobile Web Development, Arabella David NoSQL: The Shift to a Non-relational World, Nosh Petigara Open Source Web Debugging Tools, Matthew McCullough Building Line of Business Applications with Silverlight 4.0, Stephen Forte Hadoop - Divide and Conquer, Matthew McCullough Adobe Flash Catalyst for Agile Interaction Design, Harish Sivaramakrishnan Using jQuery and AJAX to Build Front-ends for ASP.NET and ASP.NET MVC, Pandurang Nayak First Steps to IT Heaven Through the Cloud. Part II: .WEB, Simone Brunozzi Building Rich Internet Applications with SL RIA Web Services, Pandurang Nayak Enriching Cloud Applications with Adobe Flash Platform, Ramesh Srinivasaraghavan Payments for the Web.future, Khurram Khan and Praveen Alavilli Longevity of Scalable Systems, Nishad Kamat Transform yourself into a Mobile App Developer Using Web Run Time, Balagopal K S Developing Multi Screen Applications on Adobe Flash Platform, Hemanth Sharma Why Harmony and For Whom?, Himanshu Goyal IIS Hosting Solution for ASP.net and PHP Web Sites, Nahas Mohammed Building Pluggable Web applications using Django, Lakshman Prasad Workshop: The 180-min AJAX and JSON Spike Class, Scott Davis Workshop: Essence of Functional Programming, Venkat Subramaniam Workshop: Agile Development, Tools, and Teams and Scrum Certification, Stephen Forte Workshop: PHP + Adobe Flex = Killer RIA, Shyamprasad P Workshop: Cloud Computing Boot Camp on the Google App Engine, Matthew McCullough Workshop: Building Data Centric Applications using Adobe Flex and Java, Prashant Singh Workshop: Building Your First Amazon App, Simone Brunozzi Workshop: Windows Azure Deep Dive, Ramaprasanna Chellamuthu Workshop: Monetizing your Apps with PayPal X Payments Platform, Khurram Khan, Praveen Alavilli Workshop: User Expereince Evaluation Model Walkthrough, Sanna Häiväläinen Sponsors of Great Indian Developer Summit 2010 include: Platinum sponsors Microsoft, Oracle Forum Nokia and Adobe; Gold sponsors Intel and SAP; Silver sponsors Quest Software, PayPal, Telerik and AMT. About Great Indian Developer Summit Great Indian Developer Summit is the gold standard for India's software developer ecosystem for gaining exposure to and evaluating new projects, tools, services, platforms, languages, software and standards. Packed with premium knowledge, action plans and advise from been-there-done-it veterans, creators, and visionaries, the 2010 edition of Great Indian Developer Summit features focused sessions, case studies, workshops and power panels that will transform you into a force to reckon with. Featuring 3 co-located conferences: GIDS.NET, GIDS.Web, GIDS.Java and an exclusive day of in-depth tutorials - GIDS.Workshops, from 20 April to 24 April at the IISc campus in Bangalore. At GIDS you'll participate in hundreds of sessions encompassing the full range of Microsoft computing, Java, Agile, RIA, Rich Web, open source/standards, languages, frameworks and platforms, practical tutorials that deep dive into technical skill and best practices, inspirational keynote presentations, an Expo Hall featuring dozens of the latest projects and products activities, engaging networking events, and the interact with the best and brightest of speakers from around the world. For further information on GIDS 2010, please visit the summit on the web http://www.developersummit.com/ A Saltmarch Media Press Release E: [email protected] Ph: +91 80 4005 1000

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• Using GoogleMaps with JXMapKit

  - by npinti

  I have been searching on the web to see if I can use GoogleMaps with the JXMapViewer. According to this, it is illegal, but the article is more than three years old. Could anyone be kind enough to tell me if I can use GoogleMaps with the JXMap viewer? I know that Google has recently allowed desktop applications to use their static maps provided that the application is freely accessible to people on some website. If this can be done, I would appreciate some pointer to where I could start looking so that I can use Google Maps, I tried messing around with this but to no avail. Thanks in advance. Edit: I have managed to show a map in my JXMapKit. The only problem is that I am getting the image as a tiled image, whilst I only need one. Any help on this issue?

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• access violation in wglMakeCurrent

  - by Stefan

  Sometimes in my OpenGL application I get an access violation in the following API call: wglMakeCurrent(NULL, NULL); The application only has one single thread, and I've checked that before that call, both the DC and HGLRC that are currently used are correct and valid. There are three different windows with OpenGL content, and they're all redrawn on WM_PAINT messages and if a refresh is required due to user interaction (e.g., picking an object). Also this access violation happens on different machines with different graphic cards, so I don't think it's a driver issue. What could make this API call crash? What should I investigate in the app code to find out where/why this happens? I'm really lost here since I've checked everything I could think of already. I hope someone can give me hints/ideas on what more to check.

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• device.uuid undefined in PhoneGap on Android?

  - by Steve Nay

  I'm writing a PhoneGap application that sends requests to a central database. It needs to be able to identify the unique devices that connect to it. PhoneGap's device.uuid property would seem to do the trick. On webOS and iPhone, I get back a unique string of alphanumeric characters, which will satisfy my need. However, the Android devices I've tested (Motorola Droid and the Android SDK emulator, both running Android 2.1) return "undefined" as the device.uuid. device.platform and device.name return correct values on all three platforms, so the problem doesn't have to do with the device object itself (it's defined in the code blocks where I use it). Is this an Android limitation? A problem with PhoneGap? Is there any other way to get such a globally unique identifier if not through device.uuid? EDIT: It appears that the deviceready event is never getting fired, which needs to happen before the device.uuid property becomes available.

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• any real MVC library in PHP (for GUI apps)

  - by mario

  I'm wondering if there are any abstraction frameworks for one of the PHP gui libraries. We have PHP-GTK, a PHP/Tk interface, and seemingly also PHP-QT. (Not tried any.) I know that writing against the raw Gtk+ interface in Python is just bearable, and it therefore seems not very enticing for PHP. I assume it's the same for Qt, and Tk is pretty low-level too. So I'm looking for something that provides a nicer object structure atop any of the three. Primarily TreeViews are always a chore and php-gtk callbacks are weird in PHP, so I'd like a simplification for that. If it eases adding the GUI/View atop my business logic without much control code, that might already help. And so since GUI apps are an area where MVC or MVP would actually make sense, I'd like to know if any library for that exists. Btw, recently rediscovered PHP interface preprocessor, but that's rather low-level and just provides a simple widget/interface abstraction for Gtk/ncurses/pdf/xhtml output.

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• Closing ASPxPopupControl and Reset Login Dialogs

  - by Fitzroy Wright

  I am creating a login usercontrol. I have added the following buttons: Recover Password, Change Password & Edit Profile. I am using DevExpress's ASPxPopupControl to host the functions associated with those three buttons. There are two problems When the popup is opened I need to be able to close/hide it using a command button When a user starts using one of the login controls and chooses to close the dialog the next time the dialog is opened it does not start at the beginning. (e.g. Start the change password dialog, enter some information, close the popup; the information you started with is not cleared) Any ideas?

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• UITableView issue when using separate delegate/dataSource

  - by Adam Alexander

  General Description: To start with what works, I have a UITableView which has been placed onto an Xcode-generated view using Interface Builder. The view's File Owner is set to an Xcode-generated subclass of UIViewController. To this subclass I have added working implementations of numberOfSectionsInTableView: tableView:numberOfRowsInSection: and tableView:cellForRowAtIndexPath: and the Table View's dataSource and delegate are connected to this class via the File Owner in Interface Builder. The above configuration works with no problems. The issue occurs when I want to move this Table View's dataSource and delegate implementations out to a separate class, most likely because there are other controls on the View besides the Table View and I'd like to move the Table View-related code out to its own class. To accomplish this, I try the following: Create a new subclass of UITableViewController in Xcode Move the known-good implementations of numberOfSectionsInTableView: tableView:numberOfRowsInSection: and tableView:cellForRowAtIndexPath: to the new subclass Drag a Table View Controller to the top level of the existing XIB in InterfaceBuilder, delete the View/TableView that are automatically created for this Table View Controller, then set the Table View Controller's class to match the new subclass Remove the previously-working Table View's existing dataSource and delegate connections and connect them to the new Table View Controller When complete, I do not have a working Table View. I end up with one of three outcomes which can seemingly happen at random: When the Table View loads, I get a runtime error indicating I am sending tableView:cellForRowAtIndexPath: to an object which does not recognize it When the Table View loads, the project breaks into the debugger without error There is no error, but the Table View does not appear With some debugging and having created a basic project just to reproduce this issue, I am usually seeing the 3rd option above (no error but no visible table view). I added some NSLog calls and found that although numberOfSectionsInTableView and numberOfRowsInSection are both getting called, cellForRowAtIndexPath is not. I am convinced I'm missing something really simple and was hoping the answer may be obvious to someone with more experience than I have. If this doesn't turn out to be an easy answer I would be happy to update with some code or a sample project. Thanks for your time! Complete steps to reproduce: Create a new iPhone OS, View-Based Application in Xcode and call it TableTest Open TableTestViewController.xib in Interface Builder and drag a Table View onto the provided view surface. Connect the Table View's dataSource and delegate outlets to File's Owner, which should already represent the TableTestViewController class. Save your changes Back in Xcode, add the following code to TableTestViewController.m: - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { NSLog(@"Returning num sections"); return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { NSLog(@"Returning num rows"); return 1; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSLog(@"Trying to return cell"); static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease]; } cell.text = @"Hello"; NSLog(@"Returning cell"); return cell; } Build and Go, and you should see the word Hello appear in the TableView Now to attempt to move this TableView's logic out to a separate class, first create a new file in Xcode, choosing UITableViewController subclass and calling the class TableTestTableViewController Remove the above code snippet from TableTestViewController.m and place it into TableTestTableViewController.m, replacing the default implementation of these three methods with ours. Back in Interface Builder within the same TableTestViewController.xib file, drag a Table View Controller into the main IB window and delete the new Table View object that automatically came with it Set the class for this new Table View Controller to TableTestTableViewController Remove the dataSource and delegate bindings from the existing, previously-working Table View and reconnect the same two bindings to the new Table Test Table View Controller we created. Save changes, Build and Go, and if you're getting the results I'm getting, note the Table View no longer functions properly Solution: With some more troubleshooting and some assistance from the iPhone Developer Forums at https://devforums.apple.com/message/5453, I've documented a solution! The main UIViewController subclass of the project needs an outlet pointing to the UITableViewController instance. To accomplish this, simply add the following to the primary view's header (TableTestViewController.h): #import "TableTestTableViewController.h" and IBOutlet TableTestTableViewController *myTableViewController; Then, in Interface Builder, connect the new outlet from File's Owner to Table Test Table View Controller in the main IB window. No changes are necessary in the UI part of the XIB. Simply having this outlet in place, even though no user code directly uses it, resolves the problem completely. Thanks to those who've helped and credit goes to BaldEagle on the iPhone Developer Forums for finding the solution.

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• SQL Server 2008 log issue

  - by George2

  Hello everyone, I am using SQL Server 2008 Enterprise. Under logs folder, in my machine it is C:\Program Files\Microsoft SQL Server\MSSQL10.MSSQLSERVER\MSSQL\Log, there are three kinds of files, ERRORLOG, ERRORLOG.1, ERRORLOG.2 ... ERRORLOG.6; FDLAUNCHERRORLOG, FDLAUNCHERRORLOG.1, FDLAUNCHERRORLOG.2, ... FDLAUNCHERRORLOG.6; log_207.trc, log_208.trc, ... My question is what are the differnet function of such log files? And why there are files ends with .1, .2, etc? thanks in advance, George

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• Spring 3 Controller Exception handler implementation problems

  - by predhme

  I was hoping to implement a single "ExceptionController" to handle exceptions that are thrown in execution of my other controllers' methods. I hadn't specified any HandlerExceptionResolver in my application context so according to the API documentation the AnnotationMethodHandlerExceptionResolver should be started. Verified as such in the source. So I am curious to know why the following isn't working. @Controller public class ExceptionController { @ExceptionHandler(NullPointerException.class) public ModelAndView handleNullPointerException(NullPointerException ex) { // Do some stuff log.error(logging stuff) return myModelAndView; } } @Controller public class AnotherController { @RequestMapping(value="/nullpointerpath") public String throwNullPointer() { throw new NullPointerException(); } } I see in the debug logs that the three default exception handlers are asked for handling of the exception, but nothing is done and I see "DispatcherServlet - Could not complete request". Followed by the user being displayed the stacktrace and a 500 Internal error.

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• SSIS Send Mail task limited to 255 characters in address?

  - by CodeByMoonlight

  Is this a bug, or some hidden limit I can't find any documentation about? When creating a Send Mail Task in SSIS 2008, the TO, CC and BCC fields seem to have a hidden limit of 255 characters. I'm aware this is the standard limit for individual email addresses, but all three are commonly used for multiple addresses and the comment for the To field even says "separate the recipients with semicolons". But nevertheless, it truncates the address to a maximum of 255 characters. Bug, non-obvious standard, or something I'm missing? Any way around this? We were trying to build a CC list dynamically, but this has caused a rethink.

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• Axis/SOAP service styles and interoperability

  - by Thilo

  There are four "styles" of service in Axis. RPC services use the SOAP RPC conventions, and also the SOAP "section 5" encoding. Document services do not use any encoding (so in particular, you won't see multiref object serialization or SOAP-style arrays on the wire) but DO still do XML<-Java databinding. Wrapped services are just like document services, except that rather than binding the entire SOAP body into one big structure, they "unwrap" it into individual parameters. Message services receive and return arbitrary XML in the SOAP Envelope without any type mapping / data binding. If you want to work with the raw XML of the incoming and outgoing SOAP Envelopes, write a message service. So, if I use anything else except the first option(SOAP RPC Section 5), how does this impact interoperability? If someone says they want a SOAP service (including WSDL), does this mean that SOAP RPC conventions are expected? Can the other three styles still be used when the other end is not implemented with Axis?

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• Slow Update/insert into SQL Server CE using LinqToDatasets

  - by Vaccano

  I have a mobile app that is using LinqToDatasets to update/insert into a SQL Server CE 3.5 File. My Code looks like this: // All the MyClass Updates MyTableAdapter myTableAdapter = new MyTableAdapter(); foreach (MyClassToInsert myClass in updates.MyClassChanges) { // Update the row if it is already there int result = myTableAdapter.Update(myClass.FirstColumn, myClass.SecondColumn, myClass.FirstColumn); // If the row was not there then insert it. if (result == 0) { myTableAdapter.Insert(myClass.FirstColumn, myClass.SecondColumn); } } This code is used to keep the hand held database in sync with the server database. Problem is if it is a full update (first time for example) there are a lot of updates (about 125). That makes this code (and more loops like it take a very long time (I have three such loops that take over 30 seconds each). Is there a faster or better way to do updates/inserts like this? (I did see this Codeplex Project, but I could not see how to make it work with both updates and inserts.)

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• What is an Efficient algorithm to find Area of Overlapping Rectangles

  - by namenlos

  My situation Input: a set of rectangles each rect is comprised of 4 doubles like this: (x0,y0,x1,y1) they are not "rotated" at any angle, all they are "normal" rectangles that go "up/down" and "left/right" with respect to the screen they are randomly placed - they may be touching at the edges, overlapping , or not have any contact I will have several hundred rectangles this is implemented in C# I need to find The area that is formed by their overlap - all the area in the canvas that more than one rectangle "covers" (for example with two rectangles, it would be the intersection) I don't need the geometry of the overlap - just the area (example: 4 sq inches) Overlaps shouldn't be counted multiple times - so for example imagine 3 rects that have the same size and position - they are right on top of each other - this area should be counted once (not three times) Example The image below contains thre rectangles: A,B,C A and B overlap (as indicated by dashes) B and C overlap (as indicated by dashes) What I am looking for is the area where the dashes are shown - AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAAAAAAAAAAAAAAAA AAAAAAAAAAAAAAAA--------------BBB AAAAAAAAAAAAAAAA--------------BBB AAAAAAAAAAAAAAAA--------------BBB AAAAAAAAAAAAAAAA--------------BBB BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB BBBBBBBBBBBBBBBBB BBBBBB-----------CCCCCCCC BBBBBB-----------CCCCCCCC BBBBBB-----------CCCCCCCC CCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCC

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• Why allow concatenation of string literals?

  - by Caspin

  I recently got bit by a subtle bug. char ** int2str = { "zero", // 0 "one", // 1 "two" // 2 "three",// 3 nullptr }; assert( values[1] == "one"_s ); // passes assert( values[2] == "two"_s ); // fails If you have godlike code review powers you'll notice I forgot the , after "two". After the considerable effort to find that bug I've got to ask why would anyone ever want this behavior? I can see how this might be useful for macro magic, but then why is this a "feature" in a modern language like python? Have you ever used string literal concatenation in production code?

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• "NOT_SUPPORTED_BY_GUI" Exception in JCo

  - by cedar715

  We are having a BAPI that uploads the specified document to SAP. The BAPI accept three parameters: ID, FILE_LOC and FOLDER_NAME. And I'm setting the values as follows in the JCo code: JCO.ParameterList paramList = function.getImportParameterList(); paramList.setValue("101XS1", "EXTERNAL_ID"); paramList.setValue("tmp", "FOLDER_NAME"); paramList.setValue("D:/upload/foo.txt", "FILE_LOCATION"); But when I'm trying to execute the BAPI, am getting the following exception: com.sap.mw.jco.JCO$Exception: (104) RFC_ERROR_SYSTEM_FAILURE: Exception condition "NOT_SUPPORTED_BY_GUI" raised. at com.sap.mw.jco.rfc.MiddlewareRFC$Client.nativeExecute(Native Method) at com.sap.mw.jco.rfc.MiddlewareRFC$Client.execute(MiddlewareRFC.java:1242) at com.sap.mw.jco.JCO$Client.execute(JCO.java:3816) at com.sap.mw.jco.JCO$Client.execute(JCO.java:3261) The same BAPI is working fine if I execute through thick client(SAP Logon). But through JCo, its giving this error.

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• What resolution should my Android splash screens be?

  - by Dan Fabulich

  I'm creating a splash screen that will display while my Android application loads. I'd like to create it at the correct size so Android won't auto-scale it up or down to fit the screen. But there are at least three important screen sizes I care about: 320x480, 480x854 (Droid), and 480x800 (Nexus One). I've read the documentation on supporting multiple screen sizes, but I still don't see how I'm supposed to configure different splash screens for Droid/Nexus one (they're both "hdpi" resources as far as Android is concerned), and I don't know exactly how large my splash screen should be in any case. (How tall is the OS title bar/menu in Droid? N1?) What size should I make these images, and how do I tell Android to use the correct size on a given screen?

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• Composite Key Dictionary

  - by AaronLS

  I have some objects in List, let's say List<MyClass> and MyClass has several properties. I would like to create an index of the list based on 3 properties of of MyClass. In this case 2 of the properties are int's, and one property is a datetime. Basically I would like to be able to do something like: Dictionary< CompositeKey , MyClass > MyClassListIndex = Dictionary< CompositeKey , MyClass >(); //Populate dictionary with items from the List<MyClass> MyClassList MyClass aMyClass = Dicitonary[(keyTripletHere)]; I sometimes create multiple dictionaries on a list to index different properties of the classes it holds. I am not sure how best to handle composite keys though. I considered doing a checksum of the three values but this runs the risk of collisions.

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• Setting a WebControls TabIndex based on the ControlId of another control

  - by Daniel Ballinger

  I have an ASP.NET Webforms site that is regularly having features added. The majority of time a new WebControl is added to the page and I need to increment the TabIndex to all subsequent controls on the page. I'd prefer a more robust solution than choosing an arbitrary gap between the initial assigned tab indexes. Setting the tab indexes using the designer tab order functionality is one option but I'd prefer to stay in the source view. Ideally, if I had three check boxes I'd like to be able to define the tabindex based off the previous controls tabindex. Then I'd only need to insert the new control and change one existing control. <asp:CheckBox ID="checkBoxA" runat="server" TabIndex="0"/> <asp:CheckBox ID="checkBoxB" runat="server" TabIndexAfterControlId="checkBoxA"/> <asp:CheckBox ID="checkBoxC" runat="server" TabIndexAfterControlId="checkBoxB"/> My first thought was to extend System.Web.UI.WebControls.WebControl with a new property, but extension properties aren't supported.

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• Overlays with MkMapView do not scroll smoothly

  - by Chase

  By overriding the drawrect of my MkAnnotationViews, I am displaying paths using CoreGraphics. The problem I have is when I zoom in pretty close and scroll the map view, the paths drawn by CoreGraphics seem to be really jumpy, as if they are updated only after a shift of three or more pixels. When zoomed out, the scrolling is perfectly smooth and is reflected for each pixel shift. The drawrect function is not called during this scrolling as I assume mkmapkit is just applying translations on the existing views. Any ideas how to smooth this out or why this is happening?

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• Android "Hello World" tutorial program. Error: [Parse Error] There is a problem parsing the package

  - by ConfusedDeveloper

  Today I decided to start developing for the Android OS. I went on their website, downloaded all the required software (Eclipse, The Android SDK, ADT Plugin for Eclipse etc.). I followed the "Hello World" tutorial supplied (link text). I have it using the Android SDK 2.1. The program worked almost flawlessly. It runs fine on the Android emulator, but doesn't install on any Android phones. I don't own an Android phone, so I had three of my friends try to install the program on theirs. The phones we used were: ROOTED G1 running 2.1 Droid running 2.1 Another Droid running 2.1 I emailed the .apk to myself in gmail, and accessed it via the Android emulator. It ran and installed the package just fine. However, when my friends tried to install it on their phones, they were all met with this error: "[Parse Error] There is a problem parsing the package" I'm wondering if anyone has any suggestions as to what may be wrong. Thanks for your help.

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• Authentication settings in IIS Manager versus web.config versus system.serviceModel

  - by Joe

  I'm new to ASP.NET :) I have a WCF web service, and I want to use Basic authentication. I am getting lost in the authentication options: In IIS 6 Manager, I can go in to the properties of the web site and set authentication options. In the web site's web.config file, under system.web, there is an <authentication mode="Windows"/> tag In the web site's web.config file, under system.serviceModel, I can configure: <wsHttpBinding <binding name="MyBinding" <security mode="Transport" <transport clientCredentialType="Basic"/ </security </binding </wsHttpBinding What is the difference between these three? How should each be configured? Some context: I have a simple web site project that contains a single .svc web service, and I want it to use Basic authentication over SSL. (Also, I want it to not use Windows accounts, but maybe that is another question.)

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• JPA Entity (in multiple persistence-unit) in OSGi (Spring DM) Environnement is confusing me.

  - by Vincent Demeester

  Hi, I'm a bit confused about a strange behavior of my JPA's related objects. I have three bundle : The User bundle does contain some user-related objects, but mainly the User object. The Energy bundle does contain some energy-related objects, and particularly a ConsumptionTerminal which contains a List of User. The Index bundle does contain an Index object that has no dependency at all. My OSGi environment is the following : A DataSource bundle that provide 2 services : dataSource and jpaVendorAdapter. The three bundles. They consume dataSource and jpaVendorAdapter. Their module-context.xml file look like : And they all have a persistence.xml file : User <?xml version="1.0" encoding="UTF-8"?> <persistence> <persistence-unit name="securityPU" transaction-type="JTA"> <jta-data-source>java:/securityDataSourceService</jta-data-source> <class>net.nextep.amundsen.security.domain.User</class> <!-- [...] --> <exclude-unlisted-classes>true</exclude-unlisted-classes> <properties> <property name="eclipselink.logging.level" value="INFO" /> <property name="eclipselink.ddl-generation" value="create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> <property name="eclipselink.orm.throw.exceptions" value="true" /> </properties> </persistence-unit> </persistence> Energy <?xml version="1.0" encoding="UTF-8"?> <persistence> <persistence-unit name="energyPU" transaction-type="JTA"> <jta-data-source>java:/securityDataSourceService</jta-data-source> <class>net.nextep.amundsen.security.domain.User</class> <class>net.nextep.amundsen.energy.domain.User</class> <!-- [...] --> <exclude-unlisted-classes>true</exclude-unlisted-classes> <properties> <property name="eclipselink.logging.level" value="INFO" /> <property name="eclipselink.ddl-generation" value="create-tables" /> <property name="eclipselink.ddl-generation.output-mode" value="database" /> <property name="eclipselink.orm.throw.exceptions" value="true" /> </properties> </persistence-unit> </persistence> Index : This one has the most simple persistence.xml with just the Index class (no shared Class). I'm using named @PersistenceUnit annotation like @PersitenceUnit(name = 'securityPU') (for the User bundle). And finally, I'm using EclipseLink as Jpa provider and Spring DM (+ Spring DM Server in the development process) The problem is the following : When the User bundle is deployed, I'm able to persist User objects. When the User bundle and Energy bundles are both deployed, I'm not able to persist User objects (neither the Energy object). But I don't have any exception at all ! There is no problem at all with the Index bundle. The bug is dataSource independent (I tried with PostgreSQL and MySQL so far). My first conclusion was that the <class>net.nextep.amundsen.security.domain.User</class> in both persistence unit was causing the trouble. I tried without it (and hiding the User dependent object in the Energy bundle) but it failed too. I'm a bit confused about that bug. I'm also not quite sure about the transaction management in this context. I wasn't the one who designed this architecture (but I tell my intern OK without testing it.. shame on me) but if I could understand this bug and maybe fix it without rewrite the bundle (and break my intern work), I would appreciate. Am I doing something wrong ? (it's obvious, but what..) Did I miss something while reading documentation ? By the way, I'm also looking for some best practices or advices when it comes to JPA, EclipseLink (or whatever JPA Provider) and Spring DM (and OSGi in general). I found interesting slides from Mike Keith about this topic (by browsing Stackoverflow).

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• Unable to list owned images and running instances from Amazon Web Services using Zend Framework

  - by Marcel Tjandraatmadja

  I am using Zend Framework's library to manage EC2 instances and AMI. However I can't list the AMI's I own and can't list existing EC2 instances. $ec2Instance = new Zend_Service_Amazon_Ec2_Instance($awsAccessKey, $awsSecretKey); $instances = $ec2Instance ->describe(); $ec2Instance -describe() should list all instances but it is returning no instances even though I have three of them running at this time. $ami = new Zend_Service_Amazon_Ec2_Image($awsAccessKey, $awsSecretKey); $images = $ami->describe(); $ami-describe() returns all the public images but none of them are the ones I created even though I have two AMIs. Does any one know what I am missing here?

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• PowerBuilder IDE Customization for SCC

  - by Adam Hawkes

  Our PowerBuilder application is fairly large and has many objects in several PBLs for organizing our code. We often have 10 or more datawindows on one window, and these datawindows may be spread across two or three PBLs. For version control, we use exclusive check-out to avoid merge conflicts. The situation is that when you right-click on a datawindow object from the Window painter you get a context-menu with options like "Script" and "Properties" and "Modify Datawindow...". We'd like to add one for "Check-out..." to avoid having to hunt for the datawindow in several PBLs. Any ideas on how to do this, or something similar, would be greatly appreciated.

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