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  • Difference between $().click(fn), $().bind(‘click’,fn), $().live('click',fn) and $().delegate('td',

    - by I Like PHP
    Hello All, i know there are a lot of question similar to this, but i want to know clear difference between all of these jQuery function together on this page with example , so that it will be very helpful for me to understand the mechanism of all of these function. i have also read the reference on jQuery main site, but there is no comparison. Please do not refer any link if there is a part of question belong to that. please describe how all four function exactly works in different manner . and which should be prefer in which situation. note: if there are any other function with same functionality/mechanism , then please share. Thanks a lot

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  • Nested/Child TransactionScope Rollback

    - by Robert Wagner
    I am trying to nest TransactionScopes (.net 4.0) as you would nest Transactions in SQL Server, however it looks like they operate differently. I want my child transactions to be able to rollback if they fail, but allow the parent transaction to decide whether to commit/rollback the whole operation. A greatly simplified example of what I am trying to do: static void Main(string[] args) { using(var scope = new TransactionScope()) // Trn A { // Insert Data A DoWork(true); DoWork(false); // Rollback or Commit } } // This class is a few layers down static void DoWork(bool fail) { using(var scope = new TransactionScope()) // Trn B { // Update Data A if(!fail) { scope.Complete(); } } } I can't use the Suppress or RequiresNew options as Trn B relies on data inserted by Trn A. If I do use those options, Trn B is blocked by Trn A. Any ideas how I would get it to work, or if it is even possible using the System.Transactions namespace? Thanks

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  • Shadow volume shader optimization (GLSL)

    - by Soubok
    I wondering if there is a way to optimize this vertex shader. This vertex shader projects (in the light direction) a vertex to the far plane if it is in the shadow. void main(void) { vec3 lightDir = (gl_ModelViewMatrix * gl_Vertex - gl_LightSource[0].position).xyz; // if the vertex is lit if ( dot(lightDir, gl_NormalMatrix * gl_Normal) < 0.01 ) { // don't move it gl_Position = ftransform(); } else { // move it far, is the light direction vec4 fin = gl_ProjectionMatrix * ( gl_ModelViewMatrix * gl_Vertex + vec4(normalize(lightDir) * 100000.0, 0.0) ); if ( fin.z > fin.w ) // if fin is behind the far plane fin.z = fin.w; // move to the far plane (needed for z-fail algo.) gl_Position = fin; } }

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  • how Postfix anti spam configuration works with DNS-based Blackhole List providers

    - by Ashish
    Hello, I have setup a Postfix mail server for incoming mails that is required to never reply to external enviornment i.e it will accept all incoming mails and never reply anything that can be used as a trace to locate and verify it's existence. I have implemented the Postfix anti-UCE configuration by using the following settings in postfix main.cf for countering spam generating mail servers: 'smtpd_recipient_restrictions = reject_rbl_client zen.spamhaus.org, reject_rbl_client bl.spamcop.net' Now i have certain doubts/questions: How Postfix is able to communicate with Black hole list providers i.e How this whole process works?, e.g here they are zen.spamhaus.org, bl.spamcop.net, so that i can test the performance of whole process. Can a header be added in the received mail regarding the status of the results of the above verification process, since i will not reply any traces from my incoming mail receiving Postfix server, so i need this feature? Please post relevant links for reference. Thanks in advance!!! Ashish

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  • Mercurial push error - hook failed

    - by raychenon
    I committed some changesets. Now I want to push them to remote repository. I get this error during push pushing to http://hguser:***@z2xeu:1337/hg/cms searching for changes 1 changesets found remote: adding changesets remote: adding manifests remote: adding file changes remote: added 1 changesets with 2 changes to 2 files remote: Attempt to commit or push text file(s) using CRLF line endings remote: in 700e14d32918: src/main/webapp/WEB-INF/jsp/search.jsp remote: remote: To prevent this mistake in your local repository, remote: add to Mercurial.ini or .hg/hgrc: remote: remote: [hooks] remote: pretxncommit.crlf = python:hgext.win32text.forbidcrlf remote: remote: and also consider adding: remote: remote: [extensions] remote: hgext.win32text = remote: [encode] remote: ** = cleverencode: remote: [decode] remote: ** = cleverdecode: remote: transaction abort! remote: rollback completed remote: abort: pretxnchangegroup.crlf hook failed [command returned code 1 Wed Jan 12 11:14:55 2011] To prevent this, I wrote in the .hg/hgrc file ( there is no Mercurial.ini ) [hooks] pretxncommit.crlf = python:hgext.win32text.forbidcrlf pretxnchangegroup.crlf = python:hgext.win32text.forbidcrlf [extensions] hgext.win32text = But I still get the same error as above. I'm pretty sure pretxnchangegroup.crlf is involved in this, maybe a python file ? I use only unicode characters in files committed

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  • virtual function call from base of base

    - by th3g0dr3d
    hi, let's say i have something like this (very simplified): <pre><code> class base { void invoke() { this-foo(); } virtual void foo() = 0; }; class FirstDerived : public base { void foo() { // do stuff } }; class SecondDerived : public FirstDerived { // other not related stuff } int main() { SecondDerived *a = new SecondDerived(); a-invoke(); } What i see in the debugger is that base::invoke() is called and tries to call this-foo(); (i expect FirstDerived::foo() to be called), the debugger takes me to some unfamiliar assembly code (probably because it jumped to unrelated areas) and after few lines i get segmentation fault. am i doing something wrong here? :/ thanks in advance

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  • CodePlex Daily Summary for Monday, December 13, 2010

    CodePlex Daily Summary for Monday, December 13, 2010Popular ReleasesRequest Tracker Data Access: 1.0.0.0: First releaseMicrosoft All-In-One Code Framework: All-In-One Code Framework 2010-12-13: Improved and Newly Added Examples:For an up-to-date code sample index, please refer to All-In-One Code Framework Sample Catalog. NEW Samples for ASP.NET Name Description Owner CSASPNETCMD Run batch/cmd from ASP.NET (C#) YiXiang VBASPNETCMD Run batch/cmd from ASP.NET (VB) YiXiang VBASPNETAJAXWebChat Ajax web chat application (VB) JerryWeng CSASPNETAJAXWebChat Ajax web chat application (C#) JerryWeng CSASPNETCurrentOnlineUserList Get current online u...Wii Backup Fusion: Wii Backup Fusion 0.9 Beta: - Aqua or brushed metal style for Mac OS X - Shows selection count beside ID - Game list selection mode via settings - Compare Files <-> WBFS game lists - Verify game images/DVD/WBFS - WIT command line for log (via settings) - Cancel possibility for loading games process - Progress infos while loading games - Localization for dates - UTF-8 support - Shortcuts added - View game infos in browser - Transfer infos for log - All transfer routines rewritten - Extract image from image/WBFS - Support....NETTER Code Starter Pack: v1.0.beta: '.NETTER Code Starter Pack ' contains a gallery of Visual Studio 2010 solutions leveraging latest and new technologies and frameworks based on Microsoft .NET Framework. Each Visual Studio solution included here is focused to provide a very simple starting point for cutting edge development technologies and framework, using well known Northwind database (for database driven scenarios). The current release of this project includes starter samples for the following technologies: ASP.NET Dynamic...WPF Multiple Document Interface (MDI): Beta Release v1.1: WPF.MDI is a library to imitate the traditional Windows Forms Multiple Document Interface (MDI) features in WPF. This is Beta release, means there's still work to do. Please provide feedback, so next release will be better. Features: Position dependency property MdiLayout dependency property Menu dependency property Ctrl + F4, Ctrl + Tab shortcuts should work Behavior: don’t allow negative values for MdiChild position minimized windows: remember position, tile multiple windows, ...SQL Server PowerShell Extensions: 2.3.1 Production: Release 2.3.1 implements SQLPSX as PowersShell version 2.0 modules. SQLPSX consists of 12 modules with 155 advanced functions, 2 cmdlets and 7 scripts for working with ADO.NET, SMO, Agent, RMO, SSIS, SQL script files, PBM, Performance Counters, SQLProfiler and using Powershell ISE as a SQL and Oracle query tool. In addition optional backend databases and SQL Server Reporting Services 2008 reports are provided with SQLServer and PBM modules. See readme file for details.EnhSim: EnhSim 2.2.1 ALPHA: 2.2.1 ALPHAThis release adds in the changes for 4.03a. at level 85 To use this release, you must have the Microsoft Visual C++ 2010 Redistributable Package installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=A7B7A05E-6DE6-4D3A-A423-37BF0912DB84 To use the GUI you must have the .NET 4.0 Framework installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992 - Updated th...NuGet (formerly NuPack): NuGet 1.0 Release Candidate: NuGet is a free, open source developer focused package management system for the .NET platform intent on simplifying the process of incorporating third party libraries into a .NET application during development. This release is a Visual Studio 2010 extension and contains the the Package Manager Console and the Add Package Dialog. This new build targets the newer feed (http://go.microsoft.com/fwlink/?LinkID=206669) and package format. See http://nupack.codeplex.com/documentation?title=Nuspe...Free Silverlight & WPF Chart Control - Visifire: Visifire Silverlight, WPF Charts v3.6.5 Released: Hi, Today we are releasing final version of Visifire, v3.6.5 with the following new feature: * New property AutoFitToPlotArea has been introduced in DataSeries. AutoFitToPlotArea will bring bubbles inside the PlotArea in order to avoid clipping of bubbles in bubble chart. You can visit Visifire documentation to know more. http://www.visifire.com/visifirechartsdocumentation.php Also this release includes few bug fixes: * Chart threw exception while adding new Axis in Chart using Vi...PHPExcel: PHPExcel 1.7.5 Production: DonationsDonate via PayPal via PayPal. If you want to, we can also add your name / company on our Donation Acknowledgements page. PEAR channelWe now also have a full PEAR channel! Here's how to use it: New installation: pear channel-discover pear.pearplex.net pear install pearplex/PHPExcel Or if you've already installed PHPExcel before: pear upgrade pearplex/PHPExcel The official page can be found at http://pearplex.net. Want to contribute?Please refer the Contribute page.??????????: All-In-One Code Framework ??? 2010-12-10: ?????All-In-One Code Framework(??) 2010?12??????!!http://i3.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1code&DownloadId=128165 ?????release?,???????ASP.NET, WinForm, Silverlight????12?Sample Code。???,??????????sample code。 ?????:http://blog.csdn.net/sjb5201/archive/2010/12/13/6072675.aspx ??,??????MSDN????????????。 http://social.msdn.microsoft.com/Forums/zh-CN/codezhchs/threads ?????????????????,??Email ????DNN Simple Article: DNNSimpleArticle Module V00.00.03: The initial release of the DNNSimpleArticle module (labelled V00.00.03) There are C# and VB versions of this module for this initial release. No promises that going forward there will be packages for both languages provided for future releases. This module provides the following functionality Create and display articles Display a paged list of articles Articles get created as DNN ContentItems Categorization provided through DNN Taxonomy SEO functionality for article display providi...UOB & ME: UOB_ME 2.5: latest versionAutoLoL: AutoLoL v1.4.3: AutoLoL now supports importing the build pages from Mobafire.com as well! Just insert the url to the build and voila. (For example: http://www.mobafire.com/league-of-legends/build/unforgivens-guide-how-to-build-a-successful-mordekaiser-24061) Stable release of AutoChat (It is still recommended to use with caution and to read the documentation) It is now possible to associate *.lolm files with AutoLoL to quickly open them The selected spells are now displayed in the masteries tab for qu...PHP Manager for IIS: PHP Manager 1.1 for IIS 7: This is a final stable release of PHP Manager 1.1 for IIS 7. This is a minor incremental release that contains all the functionality available in 53121 plus additional features listed below: Improved detection logic for existing PHP installations. Now PHP Manager detects the location to php.ini file in accordance to the PHP specifications Configuring date.timezone. PHP Manager can automatically set the date.timezone directive which is required to be set starting from PHP 5.3 Ability to ...Algorithmia: Algorithmia 1.1: Algorithmia v1.1, released on December 8th, 2010.My Web Pages Starter Kit: 1.3.1 Production Release (Security HOTFIX): Due to a critical security issue, it's strongly advised to update the My Web Pages Starter Kit to this version. Possible attackers could misuse the image upload to transmit any type of file to the website. If you already have a running version of My Web Pages Starter Kit 1.3.0, you can just replace the ftb.imagegallery.aspx file in the root directory with the one attached to this release.ASP.NET MVC Project Awesome (jQuery Ajax helpers): 1.4: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager new stuff: popup WhiteSpaceFilterAttribute tested on mozilla, safari, chrome, opera, ie 9b/8/7/6nopCommerce. ASP.NET open source shopping cart: nopCommerce 1.90: To see the full list of fixes and changes please visit the release notes page (http://www.nopCommerce.com/releasenotes.aspx).TweetSharp: TweetSharp v2.0.0.0 - Preview 4: Documentation for this release may be found at http://tweetsharp.codeplex.com/wikipage?title=UserGuide&referringTitle=Documentation. Note: This code is currently preview quality. Preview 4 ChangesReintroduced fluent interface support via satellite assembly Added entities support, entity segmentation, and ITweetable/ITweeter interfaces for client development Numerous fixes reported by preview users Preview 3 ChangesNumerous fixes and improvements to core engine Twitter API coverage: a...New Projects.NET Tips Repository: This project is the source code repository for all the projects, samples, and tutorials posted at vahidnasiri.blogspot.com. Its main focus is on .NET programming.a hash implement by basic array and link list: a hash implement by basic array and link listApplication Essentials for WPF, Silverlight, and Windows Phone 7: Application essentials is a simplified, small footprint redux of the Structured MVVM and Color Blending projects and is used to build WPF, Silverlight, and Windows Phone 7 applications with an MVVM architecture.Bit.ly Button: Bit.ly Button lets you use the power of Bit.ly bookmarklet to shorten any webpage (especially on sites like Facebook and Twitter). It's like a sharing button, except it will shorten the link before you share on Facebook or Twitter.Check Dependency: Check Dependency is designed to identify the dependency problems in assemblies. It is a valuable assistant to a project hat has complex dependency in many assemblies.Circo: A product oriented towards the need of having a powerful tool improving the construction process of applications. User interface for creating Entity Dictionary, generating .Net classes and also SQL model. It provides a strong productivity oriented.CoralCubeDB: This is the db for coralcube.Dotnet.Samples: Microsoft® .NET™ sample projects Created by Nano Taboada under a MIT License All projects have been coded using Microsoft(R) Visual Studio(R) 2010 mostly targeting framework version 4.0 Get a free copy of Visual C# 2010 Express at http://tinyurl.com/visualstudio2010expressElasticity: An library implementation of the Scheduler-Agent-Supervisor pattern. http://vasters.com/clemensv/2010/09/28/Cloud+Architecture+The+SchedulerAgentSupervisor+Pattern.aspxFacebook Graph Toolkit: get Graph API in ASP.NET.Grabbers: An object relational library and code generator designed to assist agile development teams generate data aware objects. InSimSniffer: InSimSniffer is a InSim packet sniffer for the racing simulator Live for Speed. It allows programmers to view and debug packets sent by the game.Irrlicht Wrapper for D: A D wrapper for the Irrlicht game engine generated by SWIG.Linq to LDAP: Linq provider built on top of System.DirectoryServices.Protocols for querying LDAP servers.ME Video Player: ME Video Player makes it easier for web developers to present medis on web pages. It's developed in C# and Silverlight by Mahyar Esteki.Mladi.com.hr: CMS system for croatian youth portalMouse Practise: A small project that creates a game to train a beginner to use mouse. Developer's Blog : http://shekhar-pro.blogspot.com Follow on Twitter : http://twitter.com/samajshekharMVVMKit: MVVMKit makes it easier to create WPF applications using the MVVM pattern.mygully-searcher: MyGully-Searcher makes it easier for Mygully-Forum-Users to search the forums for downloads. You'll no longer have to click to all forums. It's developed in VB.Net.NBooks Accounting: A simple clone to Quickbooks.Projeto Teste do curso de Pós graduação em Engenharia de Software.: Projeto teste do curso de pós graduação em Engenharia de Software. Códigos exemplos em Javascript e outros. Nayanne Araújo Bonifácio.Razor Reports - a Visualizer for the DotNetNuke Reports Module: Razor Reports is a Visualizer for the DotNetNuke Reports ModuleSiteGrabber: Groepsopdracht 2Supermarket: Hat: tTheSharePage: Project contains the core library for use in my website that i am developing for my NIIT project work. (The website will integrate facebook and twitter in a single website) The library features full custom developed facebook and twitter sdk library that can even be reused.Tip Of Day SharePoint WebPart: Tip Of Day webpartTranslit Hebrew to Russian: Application, which can translit Hebrew text into Russian.WP7 Thai Text Input: WP7 Thai text input makes it possible to enter Thai characters in WP7. It's developed in C# and were used in some of the CoreSharp's WP7 apps.

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  • Wpf Login System

    - by neki
    Hi everyone. i am developing a training software in wpf. but i have problems. this application will be setup project. when the user make it work, a login window will open. User should enter his username.there wont be a password. but the problem is next; i dont know how to get userid from database. and compare other usernames to get the right userid. second problem is, when i get right userid from database, how can i use it main window? where can i store this userid. will be this session or something like that? i want this userid because, user will have notpad and questions. thanks in advance. Database(UserInformation table) userid/ username

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  • Code Contracts: Unit testing contracted code

    - by DigiMortal
    Code contracts and unit tests are not replacements for each other. They both have different purpose and different nature. It does not matter if you are using code contracts or not – you still have to write tests for your code. In this posting I will show you how to unit test code with contracts. In my previous posting about code contracts I showed how to avoid ContractExceptions that are defined in code contracts runtime and that are not accessible for us in design time. This was one step further to make my randomizer testable. In this posting I will complete the mission. Problems with current code This is my current code. public class Randomizer {     public static int GetRandomFromRangeContracted(int min, int max)     {         Contract.Requires<ArgumentOutOfRangeException>(             min < max,             "Min must be less than max"         );           Contract.Ensures(             Contract.Result<int>() >= min &&             Contract.Result<int>() <= max,             "Return value is out of range"         );           var rnd = new Random();         return rnd.Next(min, max);     } } As you can see this code has some problems: randomizer class is static and cannot be instantiated. We cannot move this class between components if we need to, GetRandomFromRangeContracted() is not fully testable because we cannot currently affect random number generator output and therefore we cannot test post-contract. Now let’s solve these problems. Making randomizer testable As a first thing I made Randomizer to be class that must be instantiated. This is simple thing to do. Now let’s solve the problem with Random class. To make Randomizer testable I define IRandomGenerator interface and RandomGenerator class. The public constructor of Randomizer accepts IRandomGenerator as argument. public interface IRandomGenerator {     int Next(int min, int max); }   public class RandomGenerator : IRandomGenerator {     private Random _random = new Random();       public int Next(int min, int max)     {         return _random.Next(min, max);     } } And here is our Randomizer after total make-over. public class Randomizer {     private IRandomGenerator _generator;       private Randomizer()     {         _generator = new RandomGenerator();     }       public Randomizer(IRandomGenerator generator)     {         _generator = generator;     }       public int GetRandomFromRangeContracted(int min, int max)     {         Contract.Requires<ArgumentOutOfRangeException>(             min < max,             "Min must be less than max"         );           Contract.Ensures(             Contract.Result<int>() >= min &&             Contract.Result<int>() <= max,             "Return value is out of range"         );           return _generator.Next(min, max);     } } It seems to be inconvenient to instantiate Randomizer now but you can always use DI/IoC containers and break compiled dependencies between the components of your system. Writing tests for randomizer IRandomGenerator solved problem with testing post-condition. Now it is time to write tests for Randomizer class. Writing tests for contracted code is not easy. The main problem is still ContractException that we are not able to access. Still it is the main exception we get as soon as contracts fail. Although pre-conditions are able to throw exceptions with type we want we cannot do much when post-conditions will fail. We have to use Contract.ContractFailed event and this event is called for every contract failure. This way we find ourselves in situation where supporting well input interface makes it impossible to support output interface well and vice versa. ContractFailed is nasty hack and it works pretty weird way. Although documentation sais that ContractFailed is good choice for testing contracts it is still pretty painful. As a last chance I got tests working almost normally when I wrapped them up. Can you remember similar solution from the times of Visual Studio 2008 unit tests? Cannot understand how Microsoft was able to mess up testing again. [TestClass] public class RandomizerTest {     private Mock<IRandomGenerator> _randomMock;     private Randomizer _randomizer;     private string _lastContractError;       public TestContext TestContext { get; set; }       public RandomizerTest()     {         Contract.ContractFailed += (sender, e) =>         {             e.SetHandled();             e.SetUnwind();               throw new Exception(e.FailureKind + ": " + e.Message);         };     }       [TestInitialize()]     public void RandomizerTestInitialize()     {         _randomMock = new Mock<IRandomGenerator>();         _randomizer = new Randomizer(_randomMock.Object);         _lastContractError = string.Empty;     }       #region InputInterfaceTests     [TestMethod]     [ExpectedException(typeof(Exception))]     public void GetRandomFromRangeContracted_should_throw_exception_when_min_is_not_less_than_max()     {         try         {             _randomizer.GetRandomFromRangeContracted(100, 10);         }         catch (Exception ex)         {             throw new Exception(string.Empty, ex);         }     }       [TestMethod]     [ExpectedException(typeof(Exception))]     public void GetRandomFromRangeContracted_should_throw_exception_when_min_is_equal_to_max()     {         try         {             _randomizer.GetRandomFromRangeContracted(10, 10);         }         catch (Exception ex)         {             throw new Exception(string.Empty, ex);         }     }       [TestMethod]     public void GetRandomFromRangeContracted_should_work_when_min_is_less_than_max()     {         int minValue = 10;         int maxValue = 100;         int returnValue = 50;           _randomMock.Setup(r => r.Next(minValue, maxValue))             .Returns(returnValue)             .Verifiable();           var result = _randomizer.GetRandomFromRangeContracted(minValue, maxValue);           _randomMock.Verify();         Assert.AreEqual<int>(returnValue, result);     }     #endregion       #region OutputInterfaceTests     [TestMethod]     [ExpectedException(typeof(Exception))]     public void GetRandomFromRangeContracted_should_throw_exception_when_return_value_is_less_than_min()     {         int minValue = 10;         int maxValue = 100;         int returnValue = 7;           _randomMock.Setup(r => r.Next(10, 100))             .Returns(returnValue)             .Verifiable();           try         {             _randomizer.GetRandomFromRangeContracted(minValue, maxValue);         }         catch (Exception ex)         {             throw new Exception(string.Empty, ex);         }           _randomMock.Verify();     }       [TestMethod]     [ExpectedException(typeof(Exception))]     public void GetRandomFromRangeContracted_should_throw_exception_when_return_value_is_more_than_max()     {         int minValue = 10;         int maxValue = 100;         int returnValue = 102;           _randomMock.Setup(r => r.Next(10, 100))             .Returns(returnValue)             .Verifiable();           try         {             _randomizer.GetRandomFromRangeContracted(minValue, maxValue);         }         catch (Exception ex)         {             throw new Exception(string.Empty, ex);         }           _randomMock.Verify();     }     #endregion        } Although these tests are pretty awful and contain hacks we are at least able now to make sure that our code works as expected. Here is the test list after running these tests. Conclusion Code contracts are very new stuff in Visual Studio world and as young technology it has some problems – like all other new bits and bytes in the world. As you saw then making our contracted code testable is easy only to the point when pre-conditions are considered. When we start dealing with post-conditions we will end up with hacked tests. I hope that future versions of code contracts will solve error handling issues the way that testing of contracted code will be easier than it is right now.

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  • How do I share a WiX fragment in two WiX projects?

    - by Randy Eppinger
    We have a WiX fragment in a file SomeDialog.wxs that prompts the user for some information. It's referenced in another fragment in InstallerUI.wxs file that controls the dialog order. Of course, Product.wxs is our main file. Works great. Now I have a second Visual Studio 2008 Wix 3.0 Project for the .MSI of another application and it needs to ask the user for the same information. I can't seem to figure out the best way to share the file so that changing the information requested will result in both .MSIs getting the new behavior. I honestly can't tell if a merge module, an .wsi (include) or a .wixlib is the right solution. I would have hoped to find a simple example of someone doing this but I have failed thus far. Edit: Based on Rob Mensching's wixlib blog entry, a wixlib may be the answer, but I am still searching for an example of how to do this.

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  • Cassandra and asp.net (C#)

    - by Sergey Osypchuk
    I am interested to create portal on cassandra services, since I faced some performance and scale issues starting from 1 million of records. Definitely, it could be solved, but I am interested on other options. My main issues is cost of updating all necessary indexes, to make reading fast. First, is cassandra is good way for asp.net programmers? I mean, maybe there is some other projects, which worth to take a look And second, can you provide any documentation samples on how to start with cassandra programming from C#?

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  • NoSuchMethodError with Spring MutableValues

    - by jakob
    Hello experts! I have written a test where i specify my application context location with annotations. I then autowire my dao into the test. @ContextConfiguration(locations = {"file:service/src/main/webapp/WEB-INF/applicationContext.xml"}) public class MyTest extends AbstractTestNGSpringContextTests { @Autowired protected MyDao myDao; private PlatformTransactionManager transactionManager; private TransactionTemplate transactionTemplate; @Test public void shouldSaveEntityToDb() { transactionTemplate.execute(new TransactionCallbackWithoutResult() { protected void doInTransactionWithoutResult(TransactionStatus status) { Entity entity = new Entity(); //test myDao.save(entity) //assert assertNotNull(entity.getId()); } }); } When i run the test i get an exception which states that the application context could not be loaded and it boils down to: Caused by: java.lang.NoSuchMethodError: org.springframework.beans.MutablePropertyValues.add(Ljava/lang/String;Ljava/lang/Object;)Lorg/springframework/beans/MutablePropertyValues; I have no idea where to start looking, why do i get this error and how can i resolve it? Info springframework 3.0.2.RELEASE, Hibernate 3.4.0.GA, testng 5.9 Thank you!

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  • Unable to sync custom authentication with RIA services in SL3 + RIA implementation

    - by Nair
    I am developing SL3 + RIA services with custom authentication. I followed the example in http://code.msdn.microsoft.com/RiaServices/Release/ProjectReleases.aspx?ReleaseId=2661 to implement custom authentication. Based on the implementation, you first do login request from client to service. This request is async process. Noe the client GUI will start to bind data to SL controls using RIA services, which requires the authentication to be successful (by adding [RequireAuthentication] attribute). The trouble is, since you requested login from the main process, while it is doing authentication, the page control takes over and starts to bind data using RIA services. But the problem is authentication is not completed yet thus which ever the first service method data binding hits will fail with 'Access denied'. Bottom line is GUI is will not wait for authentication to be completed to start the data binding. My question is how do you handle this situation? Thanks,

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  • Delphi 2010 Datasnap - Design Query

    - by Matt
    I am investigating moving a thick client SQL based Delphi application to Multi Tier thin clients, and have been looking at using Datasnap in Delphi 2010. I have worked through the White Paper written by Bob Swart and extended this further. My main question really is that I want to make the server side efficient in terms of connections and SQL Queries due to multiple queries being run and remaining open at the same time to interrogate data, can anyone point me in a direction for guidance on how to design a real world Datasnap Server application, as the demo's don't go into enough detail. Thanks Matt

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  • Does Java support dynamic method invocation?

    - by eSKay
    class A { void F() { System.out.println("a"); }} class B extends A { void F() { System.out.println("b"); }} public class X { public static void main(String[] args) { A objA = new B(); objA.F(); } } Here, F() is being invoked dynamically, isn't it? This article says ... the Java bytecode doesn’t support dynamic method invocation. There are three supported invocations modes : invokestatic, invokespecial, invokeinterface or invokevirtual. These modes allows to call methods with known signature. We talk of strongly typed language. This allows to to make some checks directly at compile time. On the other side, the dynamic languages use dynamic types. So we can call a method unknown at the compile time, but that’s completely impossible with the Java bytecode. What am I missing?

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  • Unable to use factory girl with Cucumber and rails 3 (bundler problem)

    - by jbpros
    Hi there, I'm trying to run cucumber features with factory girl factories on a fresh Rails 3 application. Here is my Gemfile: source "http://gemcutter.org" gem "rails", "3.0.0.beta" gem "pg" gem "factory_girl", :git => "git://github.com/thoughtbot/factory_girl.git", :branch => "rails3" gem "rspec-rails", ">= 2.0.0.beta.4" gem "capybara" gem "database_cleaner" gem "cucumber-rails", :require => false Then the bundle install commande just runs smoothly: $ bundle install /usr/lib/ruby/gems/1.8/gems/bundler-0.9.3/lib/bundler/installer.rb:81:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010. Use #requirement Updating git://github.com/thoughtbot/factory_girl.git Fetching source index from http://gemcutter.org Resolving dependencies Installing abstract (1.0.0) from system gems Installing actionmailer (3.0.0.beta) from system gems Installing actionpack (3.0.0.beta) from system gems Installing activemodel (3.0.0.beta) from system gems Installing activerecord (3.0.0.beta) from system gems Installing activeresource (3.0.0.beta) from system gems Installing activesupport (3.0.0.beta) from system gems Installing arel (0.2.1) from system gems Installing builder (2.1.2) from system gems Installing bundler (0.9.13) from system gems Installing capybara (0.3.6) from system gems Installing cucumber (0.6.3) from system gems Installing cucumber-rails (0.3.0) from system gems Installing culerity (0.2.9) from system gems Installing database_cleaner (0.5.0) from system gems Installing diff-lcs (1.1.2) from system gems Installing erubis (2.6.5) from system gems Installing factory_girl (1.2.3) from git://github.com/thoughtbot/factory_girl.git (at rails3) Installing ffi (0.6.3) from system gems Installing i18n (0.3.6) from system gems Installing json_pure (1.2.3) from system gems Installing mail (2.1.3) from system gems Installing memcache-client (1.7.8) from system gems Installing mime-types (1.16) from system gems Installing nokogiri (1.4.1) from system gems Installing pg (0.9.0) from system gems Installing polyglot (0.3.0) from system gems Installing rack (1.1.0) from system gems Installing rack-mount (0.4.7) from system gems Installing rack-test (0.5.3) from system gems Installing rails (3.0.0.beta) from system gems Installing railties (3.0.0.beta) from system gems Installing rake (0.8.7) from system gems Installing rspec (2.0.0.beta.4) from system gems Installing rspec-core (2.0.0.beta.4) from system gems Installing rspec-expectations (2.0.0.beta.4) from system gems Installing rspec-mocks (2.0.0.beta.4) from system gems Installing rspec-rails (2.0.0.beta.4) from system gems Installing selenium-webdriver (0.0.17) from system gems Installing term-ansicolor (1.0.5) from system gems Installing text-format (1.0.0) from system gems Installing text-hyphen (1.0.0) from system gems Installing thor (0.13.4) from system gems Installing treetop (1.4.4) from system gems Installing tzinfo (0.3.17) from system gems Installing webrat (0.7.0) from system gems Your bundle is complete! When I run cucumber, here is the error I get: $ rake cucumber (in /home/jbpros/projects/deorbitburn) /usr/lib/ruby/gems/1.8/gems/bundler-0.9.3/lib/bundler/resolver.rb:97:Warning: Gem::Dependency#version_requirements is deprecated and will be removed on or after August 2010. Use #requirement NOTICE: CREATE TABLE will create implicit sequence "posts_id_seq" for serial column "posts.id" NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "posts_pkey" for table "posts" /usr/bin/ruby1.8 -I "/usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/lib:lib" "/usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/cucumber" --profile default Using the default profile... git://github.com/thoughtbot/factory_girl.git (at rails3) is not checked out. Please run `bundle install` (Bundler::PathError) /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/source.rb:282:in `load_spec_files' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/source.rb:190:in `local_specs' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:36:in `runtime_gems' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:35:in `each' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:35:in `runtime_gems' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/index.rb:5:in `build' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:34:in `runtime_gems' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:14:in `index' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/index.rb:5:in `build' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:13:in `index' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:55:in `resolve_locally' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:28:in `specs' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:65:in `specs_for' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/environment.rb:23:in `requested_specs' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler/runtime.rb:18:in `setup' /home/jbpros/.bundle/gems/bundler-0.9.13/lib/bundler.rb:68:in `setup' /home/jbpros/projects/deorbitburn/config/boot.rb:7 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require' /usr/lib/ruby/gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/jbpros/projects/deorbitburn/config/application.rb:1 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require' /usr/lib/ruby/gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/jbpros/projects/deorbitburn/config/environment.rb:2 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require' /usr/lib/ruby/gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /home/jbpros/projects/deorbitburn/features/support/env.rb:8 /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require' /usr/local/lib/site_ruby/1.8/rubygems/custom_require.rb:31:in `polyglot_original_require' /usr/lib/ruby/gems/1.8/gems/polyglot-0.3.0/lib/polyglot.rb:65:in `require' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/rb_support/rb_language.rb:124:in `load_code_file' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:85:in `load_code_file' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:77:in `load_code_files' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:76:in `each' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/step_mother.rb:76:in `load_code_files' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/cli/main.rb:48:in `execute!' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/../lib/cucumber/cli/main.rb:20:in `execute' /usr/lib/ruby/gems/1.8/gems/cucumber-0.6.3/bin/cucumber:8 rake aborted! Command failed with status (1): [/usr/bin/ruby1.8 -I "/usr/lib/ruby/gems/1....] (See full trace by running task with --trace) Do I have to do something special for bundler to check out factory girl's repository on github?

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  • Bug Running Android Tutorial HelloTabWidget under SDK 1.5: "setCurrentTag(getIntent())"

    - by Matt J.
    does not compile. Indeed: even in 1.5, this api, getIntent(), is already listed as deprecated. The error message I get complains that getIntent() does not return a String, but setCurrentTab() expects a string. If I guess and change the line to read: "tabHost.setCurrentTab(1); // was setCurrentTab(getIntent())", then it compiles, builds, but does not run. I get the "stopped unexpectedly" error message from the emulator. I cannot even get Log.d to output, so it seems that it stops 'unexpectedly' very early. So the first and main question is: what is the correct fix to "tabHost.setCurrentTab(getIntent())" in the final line of OnCreate() in http://developer.android.com/resources/tutorials/views/hello-tabwidget.html? The second and simpler question is: did I guess right in replacing 'mTabHost' with tabHost in the one place where that occurs?

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  • Remove redundant CSS rules

    - by ken
    I have several CSS files all being used in a large application; most are legacy, with one "main" css file that is the most current. This setup came about after a rebranding, and instead of redoing all of the CSS, we simply added a new CSS file that would override the rules from the legacy files. So now, I'd like to distill all of this CSS (1000's of lines) into 1 file. NOTE: I don't want to simply combine the files (as in copy/pasting them all into 1 file); I need an application to semi-intelligently look at the rules, reduce them down to only the effective rules (after inheritance), but I can't find anything like that. Example; given: /* legacy.css */ .foo { color: red; margin: 5px; } ..and: /* current.css */ .foo { margin: 10px; } I need a tool to output: /* result.css */ .foo { color: red; margin: 10px; } Does such an application exist?

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  • Article search engine in php

    - by Jason
    Hello, I am using sphinx as a search engine on my website its working perfect and I have no complain with it. The only thing it lacks is, it does not allow me to search articles whose query length is more than 15 words. I know in reality people don't use more than 3-4 words i want to use it for finding duplicate contents. I was wondering if there is any alternative solution to sphinx. I want to cope with duplicate contents. My main articles table is in innodb but I am also caching articles into MyISAM table as well for full text searching but when I search an article it takes ages to perform one search. Its not the query problem, i think mysql lacks the fulltext searching facility. Thanks Jason

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  • Why the following Java code has different outputs each time?

    - by Maxood
    I don't know about threads in Java. I like to know what is happening in this code because each time it runs, it produces a different output: public class TwoThreadsDemo{ public static void main(String[] args) { new SimpleThread("Java Programmer").start(); new SimpleThread("Java Programmer").start(); } } class SimpleThread extends Thread{ public SimpleThread(String str) { super(str); } public void run() { for (int i=0;i<10;i++) { System.out.println(i + " " + getName()); try { sleep((long)(Math.random()*1000)); } catch(InterruptedException e) { } } System.out.println("Done!" + getName()); } }

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  • ContentEditable DIV - disabling drag and drop

    - by sonofdelphi
    Is it possible to disable the drag-and-drop functionality on elements which have the contentEditable attribute set to true. I have the following HTML page. <!DOCTYPE html> <html><meta charset="utf-8"><head><title>ContentEditable</title></head> <body> <div contenteditable="true">This is editable content</div> <span>This is not editable content</span> <img src="bookmark.png" title="Click to do foo" onclick= "foo()"> </span> </body> </html> The main problem I'm facing is that it is possible to drag and drop the image into the DIV and it gets copied (along with the title and the click handler)

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  • Ruby Irb reacts strangely to control keys

    - by eegg
    Hi. I'm (extremely) new to Ruby, having started today. I just moved from my system's Ruby 1.8 installation to Ruby 1.9, compiled from source. In doing so, irb has taken a turn for the worse. It reacts in a most unfriendly way to the non-alphanumeric control keys: UP key prints: ^[[A DOWN key prints: ^[[B DELETE key prints: ^[[3~ ...and so on. The main result of this for me is that I have no access to previously issued commands. Nor does tab-completion work; though none of this seems to be an issue with Wirble - the same happens when I remove my ~/.irbrc. I'm using: Ubuntu 9.10 GNOME Terminal 2.28.1 ruby 1.9.1p376 (2009-12-07 revision 26041) [i686-linux] Irb version 0.9.5 (05/04/13) Any ideas? :(

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  • Loading WPF satellite resources dynamically

    - by BJ
    Hello! I've read about satellite-assemblies being used in WPF localizations. However, I would like to ask if there is a way to load the satellite-assemblies without following the pre-defined directory structure that depends on the language (ex. If the system language is English, the WPF application looks for the satellite-assembly inside the "en-US" subfolder). This is because I would like to simply swap the satellite-assemblies when distributing the software package without having to create a specific folder per language that would hold the assemblies. I would just like to have the satellite-assembly and the main executable in the same directory. Is this possible and is there even an easy way to do this like simply loading the resource file on application startup once? Thanks!

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  • passing json from servlet to dojo

    - by Moev4
    I am currently trying to pass a generated JSON string to dojo for parsing and am having some issues. The servlet simply writes it as a string as so: response.getWriter().append("{ \"data\": {"); response.getWriter().append("\"type\": \"facing\","); response.getWriter().append("\"score\": " + "\"" + score + "\","); response.getWriter().append("\"count\":" + "\"" + count + "\"" ); response.getWriter().append("}}"); which prints as: {"data":{"type":"facing","score":"10","count":"24"}} And the parsing on the dojo end looks as so: dojo.xhrPost({ url: url, handleAs: "json", load: function(data) { alert(data); /* Parse Not working */ alert(data.data[0].type); }, error: function(error) { alert("No dice") } }); The main issue is the data.data[0].type is returning nothing but when i print this out as text the json seems to be correctly formatted. Any help with this would be appreciated.

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  • Handling redirected URL within Flex app?

    - by fortpointuiguy
    We have a Flex client and a server that is using the Spring/Blazeds project. After the user logs in and is authenticated, the spring security layer sends a redirect to a new URL which is where our main application is located. However, within the flex client, I'm currently using HTTPService for the initial request and I get the redirected page sent back to me in its entirety. How can I just get the URL so that I can use navigatetourl to get where the app to go where it needs to? Any help would greatly be appreciated. Thanks!

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