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• From Java GUI to Java Web

  - by Xorty

  I've been doing quite large application recently with Java - Swing. Now I'd like to move to web. Basically - I am not Microsoft guy, Java is fine with me. I've checked some basics of Java EE framework and decided that my choice will be Spring. I already am familiar with JDBC. Learning Spring is one thing, but working just with GUIs (C++ and Java) means that I have very poor knowledge of web development. Before I start reading tutorials of Spring MVC, what should I know to develop web solutions? I am mainly interested "how to" with graphics ... start from scratch or some nice IDE RAD-like development ? I kind of like f.e. Silverlight and integrating to web or asp.net win forms - allows us 'GUI' people develop faster. So can you please give me some useful advices? Thanx

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• How to implement eCommerce susbscription service with multiple products

  - by Todd Brooks

  I've been researching eCommerce payment gateways and service offerings, but I'm an eCommerce novice, so please excuse my ignorance. I wish to set up an eCommerce solution with the following requirements: User "subscribes" to the service on a yearly basis. This service includes a single product subscription for a set amount (let's say $50/yr). User can "subscribe" to additional product services for a lesser rate per year (let's say $25/yr). I will need to store a product service unique Id of some sort for each product subscription the user subscribes to in order to show them product unique information. I also need to prevent duplicates...for example, user can subscribe to product ABC and XYZ, but not 2 of ABC. Is PayPal the best solution for something like this? Is there a better solution? Any assistance is greatly appreciated, even if just links to specific tutorials or examples. Update: It looks like Chargify could be the perfect solution.

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• Export Websphere 6.1 Profile with datasource configuration

  - by Virmundi

  Hello, I'm trying to export a profile from WAS 6.1 so that I can give it to other members of my team with all of the JNDI and Shared Library configurations in place. I've flowed a few IBM tutorials on this like http://www-01.ibm.com/support/docview.wss?uid=swg21322309 (technically that is more a bug fix, but there is a similar page). I've tried to export the server using the "import" feature of the server in RAD 7. None of these options create a .car file with the resources sticking around. Does anyone know how to do this? Thanks, JPD

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• Using Nearest Neighbour Algorithm for image pattern recognition

  - by user293895

  So I want to be able to recognise patterns in images (such as a number 4), I have been reading about different algorithms and I would really like to use the Nearest Neighbour algorithm, it looks simple and I do understand it based on this tutorial: http://people.revoledu.com/kardi/tutorial/KNN/KNN_Numerical-example.html Problem is, although I understand how to use it to fill in missing data sets, I don't understand how I could use it as a pattern recognition tool to aim in Image Shape Recognition. Could someone please shed some light as to how this algorithm could work for pattern recognition? I have seen tutorials using OpenCV, however I don't really want to use this library as I have the ability to do the pre-processing myself, and it seems silly that I would implement this library just for what should be a simple nearest neighbour algorithm.

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• What are the differences between MSI and EXE installers, and which should I choose?

  - by Jared Harley

  I am working on an installer for a new version of my project (C#). Previously, I've used Inno Setup to create .exe files for installing my projects on other computers in the workplace. While reading through some tutorials, though, I came across Windows Installer XML, which uses XML files to build a .msi installer. My project will be available on a network share that all the employees have access to so they can install the software (I'm currently working on an update checker as well) What are the major differences between .exe and .msi installers? Why would I want to chose one over the other? Would either make more sense given my specific environment? I found some of the information at this question, but there was not a lot of information.

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• jQuery Tips and Tricks

  - by roosteronacid

  Miscellaneous Creating an HTML Element and keeping a reference, Checking if an element exists, Writing your own selectors by Andreas Grech The data function - bind data to elements by TenebrousX The noConflict function - Freeing up the $ variable by Oli Check the index of an element in a collection by redsquare The jQuery metadata plug-in by kRON Live event handlers by TM Isolate the $ variable in noConflict mode by nickf Replace anonymous functions with named functions by ken Microsoft AJAX framework and jQuery bridge by Slace jQuery tutorials by egyamado Remove elements from a collection and preserve chainability by roosteronacid Declare $this at the beginning of anonymous functions by Ben FireBug lite, Hotbox plug-in, tell when an image has been loaded and Google CDN by Colour Blend Judicious use of third-party jQuery scripts by harriyott The each function by Jan Zich Form Extensions plug-in by Chris S Syntax No-conflict mode by roosteronacid Shorthand for the ready-event by roosteronacid Line breaks and chainability by roosteronacid Nesting filters by Nathan Long Cache a collection and execute commands on the same line by roosteronacid Contains selector by roosteronacid [Defining properties at element creation][26] by roosteronacid Optimization Optimize performance of complex selectors by roosteronacid The context parameter by lupefiasco Save and reuse searches by Nathan Long

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• Email Validation from WTForm using Flask

  - by lost9123193

  I'm following a Flask tutorial from http://code.tutsplus.com/tutorials/intro-to-flask-adding-a-contact-page--net-28982 and am currently stuck on the validation step: The old version had the following: from flask.ext.wtf import Form, TextField, TextAreaField, SubmitField, validators, ValidationError class ContactForm(Form): name = TextField("Name", [validators.Required("Please enter your name.")]) email = TextField("Email", [validators.Required("Please enter your email address."), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") Reading the comments I updated it to this: (replaced validators.Required with InputRequired) (same fields) class ContactForm(Form): name = TextField("Name", validators=[InputRequired('Please enter your name.')]) email = EmailField("Email", validators=[InputRequired("Please enter your email address.")]), validators.Email("Please enter your email address.")]) submit = SubmitField("Send") My only issue is I don't know what to do with the validators.Email. The error message I get is: NameError: name 'validators' is not defined I've looked over the documentation, perhaps I didn't delve deep enough but I can't seem to find an example for email validation.

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• Why use Python interactive mode?

  - by mvid

  When I first started reading about Python, all of the tutorials have you use Python's Interactive Mode. It is difficult to save, write long programs, or edit your existing lines (for me at least). It seems like a far more difficult way of writing Python code than opening up a code.py file and running the interpreter on that file. python code.py I am coming from a Java background, so I have ingrained expectations of writing and compiling files for programs. I also know that a feature would not be so prominent in Python documentation if it were not somehow useful. So what am I missing?

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• learning inkscape for webapp/website

  - by creativz

  Hello, I'm quite impressed with Incskape, it's very powerfull. That's why I wanted to start learning it. But how should I start (to learn it efficiently)? Should I read a book (anybody can recommend me a good one?) or just (inefficiently) do some tutorials on the internet. I really want to learn it to make professional graphics for a webapp or website. So how should I tackle it? Thanks!

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• JQuery tablesorter problem

  - by Don

  Hi, I'm having a couple of problems with the JQuery tablesorter plugin. If you click on a column header, it should sort the data by this column, but there are a couple of problems: The rows are not properly sorted (1, 1, 2183, 236) The total row is included in the sort Regarding (2), I can't easily move the total row to a table footer, because the HTML is generated by the displaytag tag library over which I have limited control. Regarding (1), I don't understand why the sort doesn't work as I've used exactly the same JavaScript shown in the simplest example in the tablesorter tutorials. In fact, there's only a single line of JS code, which is: <body onload="jQuery('#communityStats').tablesorter();"> Thanks in advance, Don

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• Common SIMD techniques

  - by zxcat

  Hi! Where can I find information about common SIMD tricks? I have an instruction set and know, how to write non-tricky SIMD code, but I know, SIMD now is much more powerful. It can hold complex conditional branchless code. For example (ARMv6), the following sequence of instructions sets each byte of Rd equal to the unsigned minimum of the corresponding bytes of Ra and Rb: USUB8 Rd, Ra, Rb SEL Rd, Rb, Ra Links to tutorials / uncommon SIMD techniques are good too :) ARMv6 is the most interesting for me, but x86(SSE,...)/Neon(in ARMv7)/others are good too. Thank you.

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• how to serialize a DataTable to json or xml

  - by loviji

  Hello, i'm trying to serialize DataTable to Json or XML. is it possibly and how? any tutorials and ideas, please. For example a have a sql table: CREATE TABLE [dbo].[dictTable]( [keyValue] [int] IDENTITY(1,1) NOT NULL, [valueValue] [int] NULL, CONSTRAINT [Psd2Id] PRIMARY KEY CLUSTERED ( [keyValue] ASC )WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY] ) ON [PRIMARY] C# code: string connectionString = "server=localhost;database=dbd;uid=**;pwd=**"; SqlConnection mySqlConnection = new SqlConnection(connectionString); string selectString = "SELECT keyValue, valueValue FROM dicTable"; SqlCommand mySqlCommand = mySqlConnection.CreateCommand(); mySqlCommand.CommandText = selectString; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); string dataTableName = "dictionary"; mySqlDataAdapter.Fill(myDataSet, dataTableName); DataTable myDataTable = myDataSet.Tables[dataTableName]; //now how to serialize it?

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• gtkmm Setup (netbeans)

  - by m00st

  I've installed gtkmm. I've attempted using the tutorials to #include "gtkmm.h" sadly it was not working. So I attempted to include the library manually. I managed to do that but the wealth of all the other libraries are not being included... I cannot find anything on Google on how to fix this... How do I fix this problem without importing 20+ libraries? I get the error from G++: "unresolved includes from gtkmm.h" What am I not doing correctly here?

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• Sprite movement

  - by Lemmons

  Hi everyone. I'm ripping my hair out over this one. For some odd reason I cannot find out / think of how to move a sprite in SFML and or SDL. The tutorials I've looked at for both libraries state nothing about this; so I assume that it's more of a C++ thing than a library thing. So I was wondering; how do you move a sprite? (When I say move, I mean have the sprite "glide" across the window at a set speed)

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• The requested URL /index.php/blog/scaffolding/add was not found on this server.

  - by Masud

  I am new in Codeigniter i am seeing the Video blog tutorials from Codeigniter but when i am useing scaffolding and try to add something give me like this massage. <?php class Blog extends Controller { function Blog() { parent::Controller(); $this->load->scaffolding('entries'); } function index() { $data['title'] = "This is my title of the page"; $data['heading'] = "This is my heading of page"; $data['todo'] = array("First Name: waliullah", "Last Name: Masud", "Full Name: Waliullah Masud"); $this->load->view('blog_view', $data); } } ?

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• Netbeans Module not being deployed

  - by DK

  Original Question Title: C:\Documents and Settings\user\My Documents\NetBeansProjects\ConsultingAgency\nbproject\build-impl.xml:563: The module has not been deployed. hello I am new to javaserver face developing and following some netbean tutorials on this Generating a JavaServer Faces CRUD Application from a Database : http://netbeans.org/kb/docs/web/jsf-jpa-crud-wizard.html when I run this generated code on my computer I get this message and it doesn't seem to work. C:\Documents and Settings\user\My Documents\NetBeansProjects\ConsultingAgency\nbproject\build-impl.xml:563: The module has not been deployed. Can anyone help me solving this problem ? thanks in advance.

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• Sync Framework, Local Database Cache, and my DAL

  - by Refracted Paladin

  I am creating a WPF app that needs to allow users to work in a temporary disconnected state and I plan to use a Local Database Cache. My question's are about my data access layer. Do you typically create the whole DAL to point at the Cache or both and create a switching mechanism? Is Entity's a good way to go for my DAL against the Cache? I am used to L2S but my understanding is that I can't use that against SQLCE, correct? Thanks! PS: Any good resources out there for using Sync, Linq, and WPF? Tutorials, videos, etc?

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• Host new WF4 workflows in appfabric

  - by racingcow

  Hello, I am new to using AppFabric to host WF services. I am trying to write a workflow admin application that will allow users to create xaml workflow definitions using the hosted WF4 designer, and then somehow allow those workflow defitions to be automatically deployed and hosted in AppFabric with the click of a button. I have the designer going, and I have read a couple of tutorials on how to host workflow services in AppFabric such as http://msdn.microsoft.com/en-us/library/ee677238.aspx, but my problem is how to deploy and host the workflow services via code. Does anyone know if this sort of "autodeploy/host" thing can be done with AppFabric? If so, could you point me in the right direction on this? -David

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• Searching for a Kohana Beginner's Tutorial for PHP

  - by Andreas Grech

  I am going to try to build a PHP website using a framework for the first time, and after some research here and there, I've decided to try to use Kohana I downloaded the source from their website, and ran the downloaded stuff on my web server, and was then greeted with a 'Welcome to Kohana!' page, and nothing more... I've tried to find some beginner tutorials on the web as regard this particular framework, but to my surprise, came up with almost nothing (only this one, but it's not a great deal of help) I am not new to PHP and neither am I new to the MVC concept, but I am very new to PHP Frameworks...so can anyone point me to a Kohana tutorial somewhere on the web that will help me get started in building my website using this framework, from scratch ? P.S. As I said, I want a beginners tutorial as regarding this case. [UPDATE] I am currently reading the Official Guide...we'll see how that goes.

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• Why can't I see the 'dataset project' property in Visual Studio DataSet designer?

  - by Ryan

  Hi, I am trying to follow 'n tier app design' tutorials and they tell me to set the DataSet Project property from the Data Set Designer in VS, to split table adaptors and entities into seprate projects. I can't see that property! (I'm looking in the same place shown on the videos... all other properties match) Does anybody know why? The video is here http://windowsclient.net/learn/video.aspx?v=14625 (4:36 is where the property is set) I'm using VS c# 2008 Express, with SQL Server Express 2008. Thanks a lot for any help Ryan

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• Runing directx samples on a Windows Mobile 6.1 device

  - by Sil

  Hi, I tried to run the directx samples from ..\Windows Mobile 6 SDK\Samples\PocketPC\CPP\win32\directx\d3dm\tutorials on m Samsung Omnia and on the emulator and it doesn't work because a deployment error. I am using Microsoft Visual Studio 2008 and have installed Windows Mobile SDK Standard and Professional refresh. The device is correctly plugged in and set up for active sync(I know this because other samples work, also a creating Win32 smart device and running it works) When I try to run the application it compiles without errors but the message: " There were deployment errors, Continue? Yes/No" appears If I manually copy the application from the debug folder to the device and run it from there, it works. The same deployment error message appears if I try it on an emulator. Other applications are deploying successfully. Is there any way to make the deployment work? Maybe there is an obscure option I need to set... Thank you

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• Visual Studio 2010 Extensibility, MPF and language services

  - by MainMa

  Hi, I am trying to extend Visual Studio 2010 RC to be able to use a custom programming language. The first two things I've tried to do is a syntax highlight/Intellisense feature (easily done, thanks to "Ook!" sample from PDC09) and a possibility to create new project templates (i.e. be able to open *.myproj files). For this second task, I can't find any easy tutorials or samples. Most samples are for Visual Studio 2008 (as for IronPython integration) or even VS2003. The few samples available for VS2010 do not work (including MPFProj) or do not compile, and are too hard to understand. Is there any easy-to-understand sample, either using MPFProj or a standalone solution, showing how to integrate templates for a custom language inside Visual Studio 2010?

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• Resources to learn sh scripting 'just like a normal programming language'

  - by Homer J. Simpson

  Hi, what is the best resource (book would be nice) to learn sh scripting (the "standard" shell on Unix systems) just like when i would learn a "normal" programming/scripting language ? There are lots of tutorials on certain aspects of shell scripting, they mostly deal with shells in general and unix commands and so on, but i would rather like to find a more general approach - meaning a quick syntactic overview and an outlook on how to do things you normally do when programming, like implementing small algorithms and so on. Doing actual scripting, not just a structured batch file. And rather 100-liners than 1-to-3-liners. Can you recommend a good standard book on the topic ?

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• noClassDefFoundError using Scala Plugin for Eclipse

  - by Jacob Lyles

  I successfully implemented and ran several Scala tutorials in Eclipse using the Scala plugin. Then suddenly I tried to compile and run an example, and this error came up: Exception in thread "main" java.lang.NoClassDefFoundError: hello/HelloWorld Caused by: java.lang.ClassNotFoundException: hello.HelloWorld at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398) After this point I could no longer run any Scala programs in Eclipse. I tried cleaning and rebuilding my project, closing and reopening my project, and closing and reopening Eclipse. Eclipse version number 3.5.2 and Scala plugin 2.8.0 Here is the original code: package hello object HelloWorld { def main(args: Array[String]){ println("hello world") } }

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• Mixing regular expression and other conditional expression in a bash if statement

  - by Tassos

  I can't get around this for quite sometime now. As I read along manuals and tutorials I'm getting more confused. I want an if statement with the following logic: if [ -n $drupal_version ] && [[ "$drupal_version" =~ DRUPAL-[6-9]-[1-9][1-9] ]]; then but I can't get it to work properly. When the script is evaluated using the "bash -x ... " script construct, works ok but when is run as a regular script my expression is not evaluated (eventhough the above condition should be met the else part is run). Could you provide any help?

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