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• Common Wpf pitfalls

  - by Patrick Klug

  I want to gather a list of WPF pitfalls. Issues with WPF that are not that well known and either have some serious design consequences or some major inconveniences. One topic per answer. List: Mouse.GetPosition() does not always return a correct value. The Wpf layout recursion limit is hard coded to 255.

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• how to find Unix system call path in C

  - by charly

  i am doing a project about shell, and i want the code that gives me the path of the system call. example, when i enter the command type dir the reply will be dir is external command (/bin/dir)

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• naming a screen session in linux

  - by Aly

  Hi, I am running multiple screens from one ssh connection, when I list all of the screens via screen -ls the names are not very descriptive and when I have multiple screens it becomes hard to remember what is running on each. Does anyone know how to name these sessions (preferably when creating the screen). Thanks

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• F# for C#/Haskell programmer

  - by Maciej Piechotka

  What is recommended tutorial of F# for Haskell programmer? F# seems to borrow a lot from Haskell but there are little traps which makes hard to write. Generally I need walkthrough the F# which would not explain what is the difference between mutable data and immutable (Haskell is much more strict in this area) etc. I know C# a little so I know more or less what .Net is about as well.

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• Why is there a large difference in quality between the C# and JavaScript specifications?

  - by ChaosPandion

  I have been studying the JavaScript standard and have found that it is extremely hard to read and understand. I constantly have to backtrack to keep concepts in my head. When reading the C# standard I am able to study components of the language without constantly moving around the document. JavaScript Specification C# Specification

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• How do I make the Inner Class uninstantiable?

  - by kunjaan

  I want a static inner class that can't be instantiated even by the external class. Right now I just have a documentation that says "Please don't instantiate this object". Can I give a better signal?

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• How extensible is Google Moderator?

  - by Masi

  I am trying to integrate vote-up-buttons similar as in Reddit to Google Moderator. However, Google Moderator does not give me Shell access. This suggests me that the only way is to use Vote-up-buttons from an external server set by iframes. I would like to know How can you can assign Iframe_A to a question in Google Moderator? How can you can show an iframe in Google moderator?

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• Trouble using sandbox of symfony

  - by jarus

  I'm new to symfony and I am trying to run a simple command on the command line but I get an error message. When I try to execute the command: d:\new_xam\xampp\htdocs\sf_sandbox_1_2\sf_sandbox>symfony propel:build-model " I get the error: 'php.exe' is not recognized as an internal or external command,operable program or batch file. Can anybody help me?

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• Logvat viewer in Eclipse flickers annoyingly

  - by petersohn

  In the logcat viewer in Eclipse, if it is set to filter messages coming from the application I am currently debugging, the list flickers annoyingly. My guess that it reloads the list every time a log message arrives from my device, even if it is not displayed because of the filter. However, it makes reading log messages very hard. Is there any way to counter this bug? Or is there an alternate logcat viewer for Android?

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• java double[][] - display as image

  - by joe_shmoe

  Hi all, just wondering if there is a simple way in java to display the contents of say 16x16 array of doubles [0..1] as a greyscale image (ala matlab)? using an unfamiliar matrix library, so I'd like to check that I'm on the right track. don't really care if it is slow or ugly, or if it requires external library - it's just there for a quick look, so as long as it works, I'm fine.

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• Ckeditor: Using Firefox built in spellchecker

  - by Kimble

  I feel a little caught between a rock and a hard place here. I want to use Firefox's built in spell checking without disabling Ckeditor's context menu as this renders it impossible to work with tables. Is there a way of getting the best of both worlds here?

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• How to execute a batch file from C#?

  - by Jim C

  I didn't think this was going to be hard. I have a commmand file, d:\a.cmd which contains: copy /b d:\7zS.sfx + d:\config.txt + d:\files.7z d:\setup.exe But this line of C# wont' execute it: Process.Start("d:\\a.cmd"); Throws Win32Exception: "%1 is not a valid Win32 application." Process.Start opens .pdf files...why not execute command files? Thanks in advance, Jim

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• Checking Available Memory allocation in C#

  - by Jepe d Hepe

  i need to create a function in my application to set its available memory usage. What i want to do is when the application is running, and it reaches to the set memory settings, i'll have to switch from saving to the memory to saving to a file to the local drive to avoid application hang. Is this a better way to do? What things to consider when doing this in terms of memory allocation? Hope you understand :) Thanks, Jepe

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• Specification Pattern vs Spec in BDD

  - by cadmium

  I'm trying to explore Behavior Driven Design and Domain Driven Design. I'm getting that written specifications drive the tests in BDD, but also that business logic can be encapsulated using the specification pattern for re-use in domain objects and repositories, etc. Are these basically the same concept just used in different ways, used in conjunction together, or am I completely confusing the concepts? Please shed some light, if possible.

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• Should I deal with files longer than MAX_PATH?

  - by John

  Just had an interesting case. My software reported back a failure caused by a path being longer than MAX_PATH. The path was just a plain old document in My Documents, e.g.: C:\Documents and Settings\Bill\Some Stupid FOlder Name\A really ridiculously long file thats really very very very..........very long.pdf Total length 269 characters (MAX_PATH==260). The user wasn't using a external hard drive or anything like that. This was a file on an Windows managed drive. So my question is this. Should I care? I'm not saying can I deal with the long paths, I'm asking should I. Yes I'm aware of the "\?\" unicode hack on some Win32 APIs, but it seems this hack is not without risk (as it's changing the behaviour of the way the APIs parse paths) and also isn't supported by all APIs . So anyway, let me just state my position/assertions: First presumably the only way the user was able to break this limit is if the app she used uses the special Unicode hack. It's a PDF file, so maybe the PDF tool she used uses this hack. I tried to reproduce this (by using the unicode hack) and experimented. What I found was that although the file appears in Explorer, I can do nothing with it. I can't open it, I can't choose "Properties" (Windows 7). Other common apps can't open the file (e.g. IE, Firefox, Notepad). Explorer will also not let me create files/dirs which are too long - it just refuses. Ditto for command line tool cmd.exe. So basically, one could look at it this way: a rouge tool has allowed the user to create a file which is not accessible by a lot of Windows (e.g. Explorer). I could take the view that I shouldn't have to deal with this. (As an aside, this isn't an vote of approval for a short max path length: I think 260 chars is a joke, I'm just saying that if Windows shell and some APIs can't handle 260 then why should I?). So, is this a fair view? Should I say "Not my problem"? Thanks! John

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• scheme recursive lambda

  - by Mike

  Is there a way to have a recursive lambda expression in scheme without relying an external identifier? I know you can have (define fact (lambda (n) (if (= n 0) 1 (fact (- n 1)))) but it would be nice if fact wasn't hard coded in the lambda expression, it seems improper.

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• Sharepoint hit counter is not displayed.

  - by stckvrflw

  I followed the instructions here http://support.microsoft.com/kb/825532 After that when I preview my page, I can't see the hitcounter. I learned that it may be related to permissions of the site but I couldn't find how to do it. Is it realy related to permissions ? If so what should I do to ? And any external solution (except this one: http://hitcounter.codeplex.com/) would help, the one in pharanthesis, I couldn't make it work.

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• What is the technical limitation for banks that makes them only give you 18 months of history?

  - by bobobobo

  For both my bank accounts I can only access 18 months of history. To access older account history, you have to pay a certain amount of money for each old statement. Why do banks do that? Shouldn't this practice go away as we get bigger hard disks and cheaper storage?

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• Advanced WSO2 API MANAGER configurations

  - by nuvio

  I am trying to use an 'external' WSO2 ESB, so I changed the "api-manager.xml" as follows: (ESB port: 9443, API MANAGER port: 9445) <ServerURL>https://localhost:9443/services/</ServerURL> ... <APIEndpointURL>http://localhost:9443,https://localhost:9443</APIEndpointURL> But I have an error when publishing an API via "API publisher": Caused by: org.apache.axis2.AxisFault: Error initializing API handler: org.wso2. carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler Any suggestion, many thanks in advance for your help!

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• Are there good reasons for developing features in isolation when aiming for the same release target?

  - by mkorpela

  Many developers or teams seem to want to develope there features in isolation. I'm all for continuous integration and team work and I'm having hard time to figuring out if there are any good reasons from technical perspective in developing feature in isolation.

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• SharePoint Licensing

  - by Adam

  Hi - we are thinking of using SharePoint to host a web app for which we will allow internal staff and licensed external customers to access a website built on SharePoint. I am thinking that for each authenticated user (logged in) we would need an OS CAL & a SharePoint CAL & we would need a processor license for SQL Server - Is this correct & what about non-authemticatedc website "browsers"? Any advice much appreciated.

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• How to run "make install" from Xcode

  - by teamon

  I have custom Makefile and External build target in Xcode. When I click "Build" it runs "make" When I click "Clear" it runs "make clean" How to run "make install" (or any other target) from Xcode? (btw, this is AVR project and xcode project file was created using avr-project tool shipped with Crosspack-AVR)

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• How can I mark a single file as unresolved after a failed merge in git?

  - by forki23

  Hi, at the moment I'm merging a very large project and unfortunately I have lots of conflicts. After merging some files I realized that I made merge errors in a specific file and now it is marked as resolved. How can I unresolve it in git in order to merge it again. I tried git reset --hard -- myFile.txt but it doesn't work. Regards, Steffen

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• How can I tell HtmlUnit's WebClient to download images and css?

  - by roddik

  Hello. How can I make WebClient download external css stylesheets and image bodies just like a usual web browser does?

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• What should be the ideal number of parallel java threads for copying a large set of files from a qua

  - by ukgenie

  What should be the ideal number of parallel java threads for copying a large set of files from a quad core linux box to an external shared folder? I can see that with a single thread it is taking a hell lot of time to move the files one by one. Multiple threads is improving the copy performance, but I don't know what should be the exact number of threads. I am using Java executor service to create the thread pool.

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