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  • Will the following code be Garbage Collected before the class "dies"?

    - by devoured elysium
    Let's say we have the following code in a class: //class code TextBox t = new TextBox(); ListBox l = new ListBox(); We have then two possible situations: In the first, we declare qem1 as a class variable(or attribute, as they call it in the Java World): //class variable QuickEntryMediator qem1 = new QuickEntryMediator(t,l); In the second, we declare it inside a method: //method variable QuickEntryMediator qem2 = new QuickEntryMediator(t,l); So, I'd say qem1 would never be Garbage Collected before the class goes out of scope while in the qem2 might be Garbage Collected at any time after the method in which it resides dies. Is this true? I am looking for answers for both C#(.net) and Java, as am I am not sure both GC's work in the same fashion! Thanks

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  • Finding the TextBlock that is part of the default control template ComboBox generated through code.

    - by uriya
    I'm trying to find the TextBlock that is inside the control template of a comboBox. using VisualTreeHelpar.GetChildrenCount is working only if the comboBox is declared in XAML.In that case GetChildrenCount returns 1 and a recursive search is possible. However, if I declare the combo as a member of the Window class using code, allocated and setting it to its place, the function GetChildrenCount return 0. When I run snoop in this scenario It shows the combo children hierarchy. I want to be able to search the comboBox just as snoop does. Any help would be appreciated. code: ComboBox mCombo = null; private void Windows_Loaded(object sender, RoutedEventArgs e) { mCombo = new ComboBox; mGrid.Children.Add(mCombo); Grid.SetRow(mCombo,0); int count = VisualTreeHelpar.GetChildrenCount(mCombo); }

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  • Is there a way of using one method to handle others to avoid code duplication?

    - by Artur
    I wonder if there is a way of writing a method or a class that would add to any method some code that is shared between many methods. The methods return different things and some of them are just void. Below is a part of the code that is duplicated in the methods. StartTimer(MethodBase.GetCurrentMethod().Name); try { // Actual method body } catch (Exception ex) { bool rethrow = ExceptionPolicy.HandleException(ex, "DALPolicy"); if (rethrow) { throw; } } finally { StopTimer(MethodBase.GetCurrentMethod().Name); } Any help would be greatly appreciated.

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  • Can the Perl compiler tell me if I have an unchecked exception in my code?

    - by Konerak
    Is there a way in Perl to declare that a method can throw an error (or die)? EDIT: What interests me the most is a way to get the compiler or IDE to tell me I have an unchecked exception somewhere in my code. I always loved how in Java, a method could handle an Exception and/or throw it. The method signature allows to put "throws MyException", so a good IDE/compiler would know that if you use said method somewhere in your code, you'd have to check for the Exception or declare your function to "throws" the Exception further. I'm unable to find something alike in Perl. A collegue of mine wrote a method which "dies" on incorrect input, but I forget to eval-if($@) it... offcourse the error was only discovered while a user was running the application. (offcourse I doubt if there is any existing IDE that could find these kind of things for Perl, but atleast perl -cw should be able to, no?)

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  • A question about some code from TBB book, Thanks.

    - by Jackie
    I am reading the book: Intel Threading Building Blocks. I often have difficulties understanding them. For example,the following code is from the book(page 112): Node* AllocateNode() { Node* n; FreeListMutexType::scoped_lock lock; lock.acquire(FreeListMutex); n=FreeList; if(n) Freelist=n->next; lock.release(); if(!n) n=new Node(); return n; } There is other introduction regarding this code. I can not understand it. What does it means? How can I understand this book better? Thanks.

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  • CodePlex Daily Summary for Tuesday, November 30, 2010

    CodePlex Daily Summary for Tuesday, November 30, 2010Popular ReleasesSense/Net Enterprise Portal & ECMS: SenseNet 6.0.1 Community Edition: Sense/Net 6.0.1 Community Edition This half year we have been working quite fiercely to bring you the long-awaited release of Sense/Net 6.0. Download this Community Edition to see what we have been up to. These months we have worked on getting the WebCMS capabilities of Sense/Net 6.0 up to par. New features include: New, powerful page and portlet editing experience. HTML and CSS cleanup, new, powerful site skinning system. Upgraded, lightning-fast indexing and query via Lucene. Limita...Minecraft GPS: Minecraft GPS 1.1.1: New Features Compass! New style. Set opacity on main window to allow overlay of Minecraft. Open World in any folder. Fixes Fixed style so listbox won't grow the window size. Fixed open file dialog issue on non-vista kernel machines.DotSpatial: DotSpatial 11-28-2001: This release introduces some exciting improvements. Support for big raster, both in display and changing the scheme. Faster raster scheme creation for all rasters. Caching of the "sample" values so once obtained the raster symbolizer dialog loads faster. Reprojection supported for raster and image classes. Affine transform fully supported for images and rasters, so skewed images are now possible. Projection uses better checks when loading unprojected layers. GDAL raster support f...Virtu: Virtu 0.9.0: Source Requirements.NET Framework 4 Visual Studio 2010 or Visual Studio 2010 Express Silverlight 4 Tools for Visual Studio 2010 Windows Phone 7 Developer Tools (which includes XNA Game Studio 4) Binaries RequirementsSilverlight 4 .NET Framework 4 XNA Framework 4SuperWebSocket: SuperWebSocket(60438): It is the first release of SuperWebSocket. Because it is base on SuperSocket, most features of SuperSocket are supported in SuperWebSocket. The source code include a LiveChat demo.MDownloader: MDownloader-0.15.25.7002: Fixed updater Fixed FileServe Fixed LetItBitNotepad.NET: Notepad.NET 0.7 Preview 1: Whats New?* Optimized Code Generation: Which means it will run significantly faster. * Preview of Syntax Highlighting: Only VB.NET highlighting is supported, C# and Ruby will come in Preview 2. * Improved Editing Updates (when the line number, etc updates) to be more graceful. * Recent Documents works! * Images can be inserted but they're extremely large. Known Bugs* The Update Process hangs: This is a bug apparently spawning since 0.5. It will be fixed in Preview 2. Until then, perform a fr...Cropper: 1.9.4: Mostly fixes for issues with a few feature requests. Fixed Issues 2730 & 3638 & 14467 11044 11447 11448 11449 14665 Implemented Features 6123 11581PFC: PFC for PB 11.5: This is just a migration from the 11.0 code. No changes have been made yet (and they are needed) for it to work properly with 11.5.PDF Rider: PDF Rider 0.5: This release does not add any new feature for pdf manipulation, but enables automatic updates checking, so it is reccomended to install it in order to stay updated with next releases. Prerequisites * Microsoft Windows Operating Systems (XP - Vista - 7) * Microsoft .NET Framework 3.5 runtime * A PDF rendering software (i.e. Adobe Reader) that can be opened inside Internet Explorer. Installation instructionsChoose one of the following methods: 1. Download and run the "pdfRider0...BCLExtensions: BCL Extensions v1.0: The files associated with v1.0 of the BCL Extensions library.XamlQuery/WPF - The Write Less, Do More, WPF Library: XamlQuery-WPF v1.2 (Runtime, Source): This is the first release of popular XamlQuery library for WPF. XamlQuery has already gained recognition among Silverlight developers.Math.NET Numerics: Beta 1: First beta of Math.NET Numerics. Only contains the managed linear algebra provider. Beta 2 will include the native linear algebra providers along with better documentation and examples.Microsoft All-In-One Code Framework: Visual Studio 2010 Code Samples 2010-11-25: Code samples for Visual Studio 2010Wii Backup Fusion: Wii Backup Fusion 0.8.5 Beta: - WBFS repair (default) options fixed - Transfer to image fixed - Settings ui widget names fixed - Some little bug fixes You need to reset the settings! Delete WiiBaFu's config file or registry entries on windows: Linux: ~/.config/WiiBaFu/wiibafu.conf Windows: HKEY_CURRENT_USER\Software\WiiBaFu\wiibafu Mac OS X: ~/Library/Preferences/com.wiibafu.wiibafu.plist Caution: This is a BETA version! Errors, crashes and data loss not impossible! Use in test environments only, not on productive syste...Minemapper: Minemapper v0.1.3: Added process count and world size calculation progress to the status bar. Added View->'Status Bar' menu item to show/hide the status bar. Status bar is automatically shown when loading a world. Added a prompt, when loading a world, to use or clear cached images.Sexy Select: sexy select v0.4: Changes in v0.4 Added method : elements. This returns all the option elements that are currently added to the select list Added method : selectOption. This method accepts two values, the element to be modified and the selected state. (true/false)Deep Zoom for WPF: First Release: This first release of the Deep Zoom control has the same source code, binaries and demos as the CodeProject article (http://www.codeproject.com/KB/WPF/DeepZoom.aspx).BlogEngine.NET: BlogEngine.NET 2.0 RC: This is a Release Candidate version for BlogEngine.NET 2.0. The most current, stable version of BlogEngine.NET is version 1.6. Find out more about the BlogEngine.NET 2.0 RC here. If you want to extend or modify BlogEngine.NET, you should download the source code. To get started, be sure to check out our installation documentation and the installation screencast. If you are upgrading from a previous version, please take a look at the Upgrading to BlogEngine.NET 2.0 instructions. As this ...NodeXL: Network Overview, Discovery and Exploration for Excel: NodeXL Excel Template, version 1.0.1.156: The NodeXL Excel template displays a network graph using edge and vertex lists stored in an Excel 2007 or Excel 2010 workbook. What's NewThis release adds a feature for aggregating the overall metrics in a folder full of NodeXL workbooks, adds geographical coordinates to the Twitter import features, and fixes a memory-related bug. See the Complete NodeXL Release History for details. Please Note: There is a new option in the setup program to install for "Just Me" or "Everyone." Most people...New ProjectsActiveRecordTest: ActiveRecordTest is a sample project that is really a quick guide for start using Castle ActiveRecord within an ASP.NET web application.BacteriaManage: just test codeplexDS CMS: Diamond Shop - open source project. 1. ASP.NET MVC 3.0 2. Entity Framework 3. Jquery 4. LinqGeneral Media Access WebService: This project is focused on building a general purpose media access webservice based on WCF.JavaEE server for XUNU: C'est le serveur internet du site à ChoupieLearning management system: Learning management system to help teachers on their work.LogWriterReader using Named pipe: LogWriterReader using Named pipeNMix: NMix???EntLib，NHibernate，log4net??????????，????????????????，?????????、?????、????、????、?????????。Nosso Rico Dinheirinho: Financial control system like Microsoft Money, but via web.Post Template: Post Template (for now) is for craigslist posters looking to make their posts more visually appealing. Abstracting the styling and layout details of HTML and CSS, Post Template eliminates the need to know these languages when posting. Post Template is mostly written in C#.SharePoint Silverlight Clock: SharePoint Silverlight ClockSilverlight MVVM wizard using Caliburn Micro: This MVVM style Silverlight 4 wizard shows some Caliburn Micro features, as well as the use of MEF and MVVM style unit testing. The UI and code are based on the code accompanying the "Code Project" article "Creating an Internationalized Wizard in WPF" from dec. 2008.Spider Framework: A ruler-based spider framework developing with C#syx Open Source Project: syx Open Source ProjectTigerCat: TigerCat will support application development as infrastructure and RAD tools.TitleNetSolution: This my team Solution.!Uploadert: UploadertWidget Suite for DotNetNuke: This project is intended to hold a suite of useful widgets to make your skinning easier, and raise the level of interactivity with DotNetNuke website visitors.ZenBridge for Picasa: ZenBridge for Picasa makes it easy for Zenfolio users to upload edited images directly to a chosen Zenfolio gallery. It's developed in C#.NET 4.

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  • How to use Google Analytics to track a development and production versions of the same site on different servers?

    - by Abe
    I have a website with two versions, one for production and one for development (testing new features). All of the code is under version control and the websites are on separate servers. Currently, I have the same Google Analytics Tracking code used on both sites. Since the code is under version control, it would be ideal to either have an if I am on production, use this code; else if on development server use that code clause. But I suspect that Google makes it easier to do something like this. I see that there are many ways to configure a GA tracking code, e.g. "a single domain" vs. "multiple top level domains". But it is not clear to me how to set this up. Also, if tracking code configured for a single domain has been on the development server, have I been picking up traffic to both sites, or does GA just ignore the second domain that I haven't registered?

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  • Does Eclipse has a plugin for code clips like in Coda?

    - by Sinan Y.
    There is a very useful "Clips" feature in Coda, do we have such thing in Eclipse? What it does is pretty simple, you save once a code clip which you use very often and assign it a shortcut and when you want to re-use it on editor you type the shortcut you assigned and it automatically pastes that code clip and sets caret position to the defined position. On the example here (second image) when i write 4dom and press TAB afterwards it types me this... jQuery(function($){ //puts cursor here }); Since it is a very useful feature i miss that one on Eclipse, is there a plugin for this? Thanks, Sinan.

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  • How does the GPL work in regards to languages like Dart which compile to other languages?

    - by Peter-W
    Google's Dart language is not supported by any Web Browsers other than a special build of Chromium known as Dartium. To use Dart for production code you need to run it through a Dart-JavaScript compiler/translator and then use the outputted JavaScript in your web application. Because JavaScript is an interpreted language everyone who receives the "binary"(Aka, the .js file) has also received the source code. Now, the GNU General Public License v3.0 states that: "The “source code” for a work means the preferred form of the work for making modifications to it." Which would imply that the original Dart code in addition to the JavaScript code must also be provided to the end user. Does this mean that any web applications written in Dart must also provide the original Dart code to all visitors of their website even though a copy of the source code has already been provided in a human readable/writable/modifiable form?

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  • "The breakpoint will not currently be hit. The source code is different from the original version."

    - by David
    Hi everyone I'm really hoping someone can help me out with this one. When debugging in Visual Studio, sometimes I add a breakpoint but it's hollow and VS says "The breakpoint will not currently be hit. The source code is different from the original version." Obviously this prevents me being able to debug. What on earth does the message mean? What original version? If I've just opened up the solution and not made any changes whatsoever to the code, how can there be an 'original version'? The appearance of this problem just seems totally arbitrary. It's just Visual Studio going 'Na na na na na, I'm not going to debug for you today'. Can anyone give any advice? Ta David

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  • A driver (service) for this device has been disabled. Is how the code 32 starts off:

    - by E S
    A driver (service) for this device has been disabled. An alternate driver may be providing this functionality. (Code 32) No drive letter show in device manager, and the dvd/cd is now not useable because it is not seen. This all happened, when i starting using a new, external usb hard drive from Buffalo. I have win 7 64bit. Everything else looks to be working fine. I even out of desperation, tried to hook up, and external dvd that had worked fine in the past. Just too slow and ate up memory, so i never used it. It tries to use the same drives, and when you click to update drivers, it says this is the best one. HELP.... even if i wanted, (WHICH I DON'T), to use the factory win 7 re-installation dvd, how,lol. No drive to install it from in this situation. I am at a lose here, and Buffalo tec was of no help at all. Just said he could not help. Any help would be much appreciated.

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  • What programming language best bridges the gap between pseudocode and code?

    - by Kai
    As I write code from now on, I plan to first lay out everything in beautiful, readable pseudocode and then implement the program around that structure. If I rank the languages that I currently know from easiest to most difficult to translate, I'd say: Lisp, Python, Lua, C++, Java, C I know that each language has its strength and weaknesses but I'm focusing specifically on pseudocode. What language do you use that is best suited for pseudocode-to-code? I always enjoy picking up new languages. Also, if you currently use this technique, I'd love to hear any tips you have about structuring practical pseudocode. Note: I feel this is subjective but has a clear answer per individual preference. I'm asking this here because the SO community has a very wide audience and is likely to suggest languages and techniques that I would otherwise not encounter.

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  • R: ggplot2, how to add a number of layers to a plot at once to reduce code

    - by John
    library(ggplot2) This code produces a nice looking plot: qplot(cty, hwy, data = mpg, colour = displ) + scale_y_log2() + labs(x="x axis") + labs(y="y axis") + opts(title = "my title") But I want to setup variables to try and to reduce code repetition: log_scale <- scale_y_log2() xscale <- labs(x="x axis") yscale <- labs(y="y axis") title <- opts(title = "my title") my_scales <- c(log_scale, xscale, yscale, title) # make a variable to hold the scale info changes above So that I can do this and add a bunch of things at the same time: qplot(cty, hwy, data = mpg, colour = displ) + my_scales # add these to your plot. but I get this error: Error in object$class : $ operator is invalid for atomic vectors I realize that the things going into my_scales need to be layers / different types of objects, but I don't see what they should be.

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  • What code should I put on our softball Jerseys?

    - by jsmith
    I work at a small company full of software Nerds. Our wives have decided to put a Co-Ed softball team together called "The Nerds", rightfully so. One of the wives happens to be a Graphical Designer, she has come up with the brilliant idea to put Code on the Jersey (How this wasn't my idea, I have no clue). The only rule is, she wants Nerds to be a part of the code. I've been racking my brain to come up with something clever, but really haven't been able to. So I decided to open it up to my online family. Where better to ask than SO? As a simple reward to whomever gets the best answer, I planned on taking a picture of the team in their Jersey's so the winner can see their result in action.

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  • Is there a way in Sphinx/Pygments to emphasize one or more lines of code in literal includes?

    - by Casey
    In some sphinx docs I am writing, I am including code samples from an ancillary file like so: .. literalinclude:: mymodule.py :pyobject: MyClass :linenos: This particular doc is a tutorial, where the classes are build up step by step. What I would like to do is include the entire class or a single method, and emphasize only the lines of interest to that section. That way the context is preserved but the interesting parts are obvious at a glance. Right now I have resorted to just referring to line numbers in the text, which is ok, but far from ideal. Looking at the docs and code for sphinx and pygments I don't find an obvious way to do this. I'm not opposed to patching them or doing something tricky in conf.py, but I wondered if anyone had solved this.

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  • serving js libraries: better performance from google code or using asset packager?

    - by brahn
    I am working on a rails application that uses big javascript libraries (e.g. jquery UI), and I also have a handful of my own javascript files. I'm using asset packager to package up my own javascript. I'm considering two ways of serving these files: Link to the jQuery libraries from Google Code as described at http://code.google.com/apis/ajaxlibs/documentation/#jquery , and separately package up and serve my javascript files using asset packager. Host the jquery libraries myself, and package them together with my own javascript as one big merged javascript file. My hosting solution is of course not going to beat out Google's content delivery network, so at first I assumed that end users would experience faster page loads via option #1. However, it also occured to me that if I serve them myself, users would only need to issue one request to get the merged javascript (as opposed to one for my merged javascript and another for the libraries served by google). Which approach will provide the best end-user experience (presumably in the form of faster load times?)

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  • Allowing threads from python after calling a blocking i/o code in a python extension generated using

    - by SS
    I have written a python extension wrapping an existing C++ library live555 (wrapping RTSP client interface to be specific) in SWIG. The extension works when it is operated in a single thread, but as soon as I call the event loop function of the library, python interpreter never gets the control back. So if I create a scheduled task using threading.Timer right before calling the event loop, that task never gets executed once event loop starts. To fix this issue, I added Py_BEGIN_ALLOW_THREADS and Py_END_ALLOW_THREADS macros manually in the SWIG auto generated wrapper cxx file around every doEventLoop() function call. But now, I want to do the same (i.e. allow threads) when SWIG generates the code itself and not to change any code manually. Has anyone done something similar in SWIG? P.S. - I would also consider switching to any other framework (like SIP) to get this working. I selected SWIG over any other technology is because writing SWIG interface was really very easy and I just had to include the existing header files.

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  • Snatching the code of a Facebook fan page canvas?

    - by Andre
    I am trying to snatch the code of this fan page: http://www.facebook.com/pages/See-oho-nieps-YothG-RRofiLe/106340746065367 I need the function that suggests the fan page to the users friends automatically (not for spamming purposes as the above fan page is used for). Now by looking at the source, I know that the code is under the pagelet_tab_content, but not all of it. I have copied that part and pasted it into my own fan page. The layout looks identical but the functions does not work. Obviously something is missing. For instance, I cant find the in the source which is strange, as I know for definate that it is being used. I have been working with this all day without any result. Maybe there is someone more intelligent and experienced that could help me out?

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  • What is the Fastest Way to Check for a Keyword in a List of Keywords in Delphi?

    - by lkessler
    I have a small list of keywords. What I'd really like to do is akin to: case MyKeyword of 'CHIL': (code for CHIL); 'HUSB': (code for HUSB); 'WIFE': (code for WIFE); 'SEX': (code for SEX); else (code for everything else); end; Unfortunately the CASE statement can't be used like that for strings. I could use the straight IF THEN ELSE IF construct, e.g.: if MyKeyword = 'CHIL' then (code for CHIL) else if MyKeyword = 'HUSB' then (code for HUSB) else if MyKeyword = 'WIFE' then (code for WIFE) else if MyKeyword = 'SEX' then (code for SEX) else (code for everything else); but I've heard this is relatively inefficient. What I had been doing instead is: P := pos(' ' + MyKeyword + ' ', ' CHIL HUSB WIFE SEX '); case P of 1: (code for CHIL); 6: (code for HUSB); 11: (code for WIFE); 17: (code for SEX); else (code for everything else); end; This, of course is not the best programming style, but it works fine for me and up to now didn't make a difference. So what is the best way to rewrite this in Delphi so that it is both simple, understandable but also fast? (For reference, I am using Delphi 2009 with Unicode strings.) Followup: Toby recommended I simply use the If Then Else construct. Looking back at my examples that used a CASE statement, I can see how that is a viable answer. Unfortunately, my inclusion of the CASE inadvertently hid my real question. I actually don't care which keyword it is. That is just a bonus if the particular method can identify it like the POS method can. What I need is to know whether or not the keyword is in the set of keywords. So really I want to know if there is anything better than: if pos(' ' + MyKeyword + ' ', ' CHIL HUSB WIFE SEX ') > 0 then The If Then Else equivalent does not seem better in this case being: if (MyKeyword = 'CHIL') or (MyKeyword = 'HUSB') or (MyKeyword = 'WIFE') or (MyKeyword = 'SEX') then In Barry's comment to Kornel's question, he mentions the TDictionary Generic. I've not yet picked up on the new Generic collections and it looks like I should delve into them. My question here would be whether they are built for efficiency and how would using TDictionary compare in looks and in speed to the above two lines? In later profiling, I have found that the concatenation of strings as in: (' ' + MyKeyword + ' ') is VERY expensive time-wise and should be avoided whenever possible. Almost any other solution is better than doing this.

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