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• Limit VS2010 Intellisense Camel Case matching

  - by Gabriël

  Hi, I just started with VS2010 and the feature I was really looking forward too was the new Intellisense, and the Camel casing matching in particular. But I must say I'm pretty dissapointed with the way it works and am wondering if this is just a setting, or not. When I type 'OIE' I get the following results: OrderItemBackerEntity (OIBE) OrderGarmentActionGroupItemEntity (OGAGIE) OrderItemClothingEntity (OICE) OrderItemEntity (OIE) << GOOD These indeed do match in some way, but why does it match so broad, and not only the fitting one, the last one. Are these settings, or is this by design?

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• Why uses git fast-forward merging per default?

  - by Florian Pilz

  Coming from mercurial, I'm using branches to organize features. Naturally I want to see this work-flow in my history as well. But I started my new project with git and finished a feature. After merging I realized that git used fast-forward and forgot about my branch. So to think into the future: I'm the only one working on this project. If I use the default approach of git (fast-forward merging) my history would result in one giant master branch. I don't want this and can't see any good reason making this default. Maybe there are reasons, but what's so striking about it, that it has to be the default action?

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• What's the (hidden) cost of lazy val? (Scala)

  - by Jesper

  One handy feature of Scala is lazy val, where the evaluation of a val is delayed until it's necessary (at first access). Ofcourse a lazy val must have some overhead - somewhere Scala must keep track of whether the value has already been evaluated and the evaluation must be synchronized, because multiple threads might try to access the value for the first time at the same time. What exactly is the cost of a lazy val - is there a hidden boolean flag associated with a lazy val to keep track if it has been evaluated or not, what exactly is synchronized and are there any more costs? And a follow-up question: Suppose I do this: class Something { lazy val (x, y) = { ... } } Is this the same as having two separate lazy vals x and y or do I get the overhead only once, for the pair (x, y)?

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• How do you do dynamic script evaluation in C#?

  - by Deane

  What is the state of dynamic code evaluation in C#? For a very advanced feature of an app I'm working on, I'd like the users to be able to enter a line of C# code that should evaluate to a boolean. Something like: DateTime.Now.Hours > 12 && DateTime.Now.Hours < 14 I want to dynamically eval this string and capture the result as a boolean. I tried Microsoft.JScript.Eval.JScriptEvaluate, and this worked, but it's technically deprecated and it only works with Javascript (not ideal, but workable). Additionally, I'd like to be able to push objects into the script engine so that they can be used in the evaluation. Some resources I find mentioned dynamically compiling assemblies, but this is more overhead than I think I want to deal with. So, what is the state of dynamic script evaluation in C#? Is it possible, or am I out of luck?

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• Can a Domain Specific Language (DSL) be localized?

  - by michielvoo

  I have never written a DSL, but I am considering it as a feature for a new project (hypothetical). It would be for end users to be able to express in natural language concepts such as weekdays between 10 and 11 except on the first monday of the month. Dutch users might write weekdagen tussen 10 en 11 behalve op de eerste maandag van de maand. In this case the position of the words seems to match, but there may be expressions where the position of verbs/nouns etc. could be different between languages. I realise the obvious answer (it depends). I am a .NET developer and I consider using Boo but I'm open to suggestions. I need to understand wether each translation requires rewriting a part of the implementation (which part) or if there is a way to do actual translations, maybe in some sort of preprocessor. Thanks!

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• Interface Builder "Simulate Interface" not working

  - by bpapa

  I am using Interface Builder to play around with some ideas. I never noticed that there is a "Simulate Interface" feature which apparently will render the nib in the iPhone simulator. So, I created a view, put one component in there (a Segmented Control), saved it, selected "Simulate Interface", the simulator launched but... nothing rendered in the simulator. Just a black screen. I thought maybe my nib wasn't complete enough, so I've tried it with all of my old nibs and I'm having the same problem with all of them. None of them render in the simulator at all. Is there some trick that I'm missing?

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• VS2010 Clean Web.configs - not updating

  - by cw

  Hello, I'm messing around with MVC 2.0 on VS2010 and am having an issue getting the clean web config feature working. Basically in my Web.debug.config I have <connectionStrings xdt:Transform="Replace"> <add name="ApplicationServices" connectionString="Server=localhost;Database=SITE_DB;User ID=dbuser;Password=P@ssw0rd;Trusted_Connection=False;" /> </connectionStrings> and in my Web.config I have <connectionStrings> <add name="ApplicationServices" connectionString="data source=.\SQLEXPRESS;Integrated Security=SSPI;AttachDBFilename=|DataDirectory|aspnetdb.mdf;User Instance=true" providerName="System.Data.SqlClient" /> </connectionStrings> When I run the site in debug mode, I'd expect that xdt:Transform="Replace" would replace the entire connectionStrings section with what is in the Web.debug.config. Am I assuming wrong? Or am I doing something else incorrect. Not much info posted around this and I'd figure I'd ask you guys.

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• Animated Circular bar on hover

  - by Anthony

  I'm building a portfolio website and want to implement a skill set page which feature an animated circular bar which represent each of my skills. There will be 6 buttons around the circle which when the user hovers over, and when one is hovered I want a circular bar to animate anti-clockwise. I've made a quick .gif in photoshop to demonstrate But I can't find any tutorial to help. I found this website which features a similar concept on the left hand side at the top, an animated pie chart - Website Example And this is a quick .gif Mockup I did in photoshop of what I am trying to achieve - Animated Circular Bar Animation

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• Is it good to use .settings for storing controls text data?

  - by Zenya

  In my WinForms applications I often put the controls text data (form title, labels texts, button captions, etc.) into a .settings (feature automatically generated by Visual Studio - based on the ApplicationSettingsBase class). In particular, Add a form or a control. In Solution Explorer add a new string item into the application scope of the settings file. Bind the control text property with the corresponding item of the settings file (through the property binding). Good point of this is that all my text data is collected in one place and easy to check and edit. Also it is convenient when I want to use the same text for several controls. However, I haven't heard that somebody uses the .settings such way. In tutorials for creating multilingual applications, for example, it is recommended to enter texts directly into the control property. So, is it good practice to use .settings for storing controls text data? Brief conclusion from the answers: Storing controls text data in the .settings is not common practice.

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• C# application per-machine/per-user licensing

  - by MainMa

  Hi, I am about to implement a very basic licensing feature for my application. A serial number may be granted per-machine (or per-operating-system) or per-user (as for CAL in Windows Server: if my application is used by several users on one machine or if it is used by one user on several machines). For per-operating-system licensing, I use SerialNumber of Win32_OperatingSystem. For per-user licensing, I use: WindowsIdentity currentIdentity = WindowsIdentity.GetCurrent(); if (currentIdentity != null) { SecurityIdentifier userSid = currentIdentity.User.AccountDomainSid; Console.WriteLine(userSid); } A hash of an obtained OS serial number or SID is then stored in the database, associated with application serial; each time the program starts, it queries the server, sending hash of OS SN/SID and application serial. Is it a right thing to do it or is it completely wrong? Will it work on every Windows machine? (For example, using motherboard serial is wrong)

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• Why do C# automatic properties not support default values like VB 2010?

  - by Rob van Groenewoud

  Looking at the new VB 2010 features, I stumbled upon support for Auto-Implemented Properties. Since I'm working with C#, this seemed quite familiar, but I noticed that VB did add a feature I would love to have in C#: setting a arbitrary default value for the auto-implemented property: I really like the clean usage of auto-properties in C#. This would save us the effort of introducing a backing field and hooking it up to the property everytime we simply need a default value, thereby cluttering up the code unnecessarily. I was wondering why this wasn't introduced in C# as well? What could be the rationale for not doing this? Is a syntax discussion going on, or are there technical limitations to implementing this?

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• How can I save BioPerl sequence nested features in genbank or embl format?

  - by Ryan Thompson

  In BioPerl, a sequence object can have any number of features, and each of these can have subfeatures nested within them. For example, a feature may be a complete coding sequence of a gene, and its subfeatures might be individual exons that are concatenated to form the full coding sequence. However, when I use BioPerl to write a sequence object to a file in genbank or embl format, only the top-level features are written to the file, not the sub-features nested within the top-level features. How can I store my subfeatures in sequence files? Should I just convert all my subfeatures into top-level features, and then reconstruct the tree structure next time I read in the sequence?

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• Is it possible to remember the filename from a fileupload field and then later launch that file via

  - by Pieter Breed

  I have a HTML file upload field from which I'm reading the file name of the file that the user specifies. The actual contents of the file is never uploaded. At a later stage, is it possible to construct a link using this file name information so that if the user clicks on this link, the original file is launched into a new browser window? If not, what are the reason for disallowing this behaviour? The purpose of such a feature is to store links to documents that are available on a mapped local drive or a network share.

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• Enable access for assistive device programmatically

  - by Dheeraj

  Hi All, I want to enable Access for assistive devices in System Preferences programmatically. But Problem is that my application is not running as root user and i do not want my application to be as root user and also should not ask for any authentication in between. I want to tap all keyboard events globally. I am using CGEventTapCreate() for the same.In the documentation of CGEventTapCreate() API it is mentioned that, Event taps receive key up and key down events if one of the following conditions is true: The current process is running as the root user. Access for assistive devices is enabled. In Mac OS X v10.4 & later, you can enable this feature using System Preferences, Universal Access panel, Keyboard view. I tried manually by checking the Enable Access for assistive devices from System Preference and it gives me expected output. So is there any way to do the same via program without asking for authentication and also application is not running as root user? Thanks, Dheeraj.

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• Why does Silverlight provides webcam and microphone support without any encoding API?

  - by Shurup

  In the list of new features in Silverlight 4 you will find following: Webcam and microphone to allow sharing of video and audio for instance for chat or customer service applications. Silverlight captures an audio stream as raw pcm. So how would you realize for example audio/video chat or client/server audio recording application without any encoding on the client side, where there is no APIs in Silverlight available? Much less in a Silverlight you cannot use an unmanaged dll. You can use a com automation (a new feature of the Silverlight 4, I think only for Windows) but only if it was already installed on the client side (do you know any encoding COM servers that are installed with the windows). Otherwise, how would you deploy a custom COM server within you Silverlight application? The only way I found is either to deploy a command-line encoding and use it with COM AutomationFactory.CreateObject("WScript.Shell") or to implement an encoding to use it in your own AudioSink.

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• Google Street View API v3 : how can I avoid having "fish-eye" effect on Firefox?

  - by Benj

  I'm using google maps API V3 and I'm having trouble displaying correctly the street view within Firefox. I always get the "fish-eye" view (does not happen with Google chrome). So I assumed that the problem came from Firefox. I took a look to the street view options but found nothing. I would like to know if there is an option to have a flatten street view or if it is because Firefox does not support this kind of feature. If someone could explain it to me, I would be grateful. Below, what it looks in Firefox : And what it looks in Chrome :

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• Active X Development: VC++ or VB or Other technologies

  - by Gopalakrishnan Subramani

  We are in the process of creating active-x controls used within our application. Since Microsoft stopped supporting classic Visual Basic, is it wise to use Visual Basic to develop the Active X control or the latest VC++/ATL/MFC libraries provide more feature where we can create controls faster by leaving Visual Basic flexibility? We will not be able to use .NET/VB.NET/C# since the application is supposed to work inside containers and containers may not support latest .NET runtime. Any other language is best fit for Active X control development other than VB and VC++?

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• Which .NET class does represent the main CONTROLLER class for WebForms ?

  - by Renato Gama

  Hey guys, lately I was studying a bit of Java, when I was taught about a way to implement a controller class, whose resposibility is to redirect the request to an Action, which perfoms a specified work. That was the way I learnt; @Override protected void service(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { try { String clazz = req.getRequestURI().replaceAll(req.getContextPath() + "/", "").replaceAll(".java", ""); ((Action)Class.forName("com.myProject.actions." + clazz).newInstance()).execute(req, res); } catch (Exception e) { e.printStackTrace(); } } I know that WebForms also works with HANDLERS, which are kind of actions. For example, each .aspx page inherits from a Page object which is a handler for that specified page. What I couldn't figure out is, which class does get request first and translate it to the specified action (page handler)? Is it a WebForms feature(implementation) or its a IIS resposibility? So, which class represent the main controller for WebForms? Thank you very much.

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• Voting UI for showing like/dislike community comments side-by-side

  - by Justin Grant

  We want to add a comments/reviews feature to our website's plugin gallery, so users can vote up/down a particular plugin and leave an optional short comment about what they liked or didn't like about it. I'm looking for inspiration, ideally a good implementation elsewhere on the web which isn't annoying to end users, isn't impossibly complex to develop, and which enables users to see both good and bad comments side-by-side, like this: Like: 57 votes Dislike: 8 votes --------------------------------- -------------------------------- "great plugin, saved me hours..." "hard to install" "works well on MacOS and Ubuntu" "Broken on Windows Vista with UAC enabled" "integrates well with version 3.2" More... More... Anyone know a site which does something like this?

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• NDepend: How to not display 'tier' assemblies in dependency graph?

  - by Edward Buatois

  I was able to do this in an earlier version of nDepend by going to tools-options and setting which assemblies would be part of the analysis (and ignore the rest). The latest version of the trial version of nDepend lets me set it, but it seems to ignore the setting and always analyze all assemblies whether I want it to or not. I tried to delete the "tier" assemblies by moving them over to the "application assemblies" list, but when I delete them out of there, they just get added back to the "tier" list, which I can't ignore. I don't want my dependency graph to contain assemblies like "system," "system.xml," and "system.serialization!" I want only MY assemblies in the dependency graph! Or is that a paid-version feature now? Is there a way to do what I'm talking about?

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• How do I properly implement Unicode passwords?

  - by Sorin Sbarnea

  Adding support for Unicode passwords it an important feature that should not be ignored by the developpers. Still adding support for Unicode in the passwords it's a tricky job because the same text can be encoded in different ways in Unicode and this is not something you may want to prevent people from logging in due to this. Let's say that you'll store the passwords os UTF-8. Now the question is how you should normalize the Unicode data? You had to be sure that you'll be able to compare it. You need to be sure that when the next Unicode standard will be released it will not invalidate your password verification. Note: still there are some places where Unicode passwords are probably never be used, but this question is not about why or when to use Unicode passwords, is about how to implement them the proper way.

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• Custom Grails Environments?

  - by tinny

  I have been developing several Grails applications over the past couple of years. I am increasingly finding that the three grails environments (dev, test, prod) aren't enough to satisfy my needs. The more "enterprisey" your application gets, the more environments you tend to have. I tend to use 6 environments for my development cycle... DEVA //My dev DEVB //Team mates dev CI_TEST //CI like Hudson QA_TEST //Testing team environment UAT_TEST //Customers testing environment PROD //Production Im wondering if there is a way to define custom Grails environments? I dont think there is, but the feature could be handy. The way I am getting around this right now is by externalising the config to a properties file. Id imagine that this is a pretty common requirement, so how have you been dealing with your environments?

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• Allow swipe-to-delete in one instance of UITableViewDataSource, but not another

  - by synic

  I've got a UITableViewDataSource that I'm using for two different UITableViews. In one of the table views, I want to enable swipe-to-delete, so I've implemented tableView:commitEditingStyle:forRowAtIndexPath, and it works as expected. However, in another table, I want to disable that feature. I've got it working by making two UITableViewDataSource classes, one subclassing the other, and I only implement tableView:commitEditingStyle:forRowAtIndexPath in the subclass. I call them RecipientModel and RecipientModelEditable. I'm wondering if there's a better way.

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• Migrating from SQL Server to firebird: pro and cons

  - by user193655

  I am considering the migration for 4 reasons: 1) SQLSERVER installation is a nightmare, expecially for 1-user software (Even if typically I have 3-20 users, sometimes I sell my software to single users: it is incredible to have troubles installing the DB, while installing the applicatino means copying an exe...). (note my max installation is 100 users, but there is no an upper limit). Software installs in 10 seconds, SQLServer in 1 hour. Firebird installation is much easier. 2) SQLSERVER runs on windows server only 3) My customers have all the express edition 4) i am not using any advanced feature, I am now starting using filestream, but the main reason for this is that Express edition has 4/10GB db size limit So these are all Pros of moving to Firebird. Which are the cons? I can also plan to support both platforms, but this will backfire I fear.

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• Synchronising scripts / db / files from dev system to web server

  - by Spoonface

  I work as a freelance web dev, and up until now have been ftping my scripts / databases / static files to my web server manually, but I'm finding that is too error prone. So I'm looking for an app to automate uploading new and updated scripts / files / databases / etc. I know a lot of independent devs use WinSCP or Unison, but I don't think those apps can synch databases. Does anyone have any other suggestions? It doesn't need to be anything overly feature rich as I'm not working within a team or across multiple operating systems or anything like that. I can purchase any reasonably priced license if necesary. My work is primarily for PHP / MySQL / Apache on a Windows system, and then uploaded to a Linux / Apache server. thanks for your time!

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