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• How to set up source control in VS2010

  - by Jouke van der Maas

  Hi, I want to set up source control for my project, but it seems like I need a server for this. I've never done this before, and I couldn't find anything helpfull yet. Is there any way to host a server locally so Visual studio can use it? Or do you know any online (free) servers I can use? By the way, if source control is not actually what i should use for keeping track of changes in my files, please suggest a better option. Thanks in advance.

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• LNK2001: What have I forgotton to set?

  - by graham.reeds

  Following on from my previous question regarding debugging of native code, I decided to create a simple test from a console app as I wasn't getting anywhere with debugging the service directly. So I created a vc6 console app, added the dll project to the workspace and ran it. Instead of executing as expected it spat out the following linker errors: main.obj : error LNK2001: unresolved external symbol "int __stdcall hmDocumentLAdd(char *,char *,long,char *,char *,long,long,long,long *)" (?hmDocumentLAdd@@YGHPAD0J00JJJPAJ@Z) main.obj : error LNK2001: unresolved external symbol "int __stdcall hmGetDocBasePath(char *,long)" (?hmGetDocBasePath@@YGHPADJ@Z) Debug/HazManTest.exe : fatal error LNK1120: 2 unresolved externals This seems to be a simple case of forgetting something in the linker options: However everything seems to be normal, and the lib file, dll and source is available. If I change the lib file to load to nonsense it kicks up the fatal error LNK1104: cannot open file "asdf.lib", so that isn't a problem. I have previously linked to dll and they have just worked, so what I have forgotton to do?

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• My map callouts don't display the image when clicked

  - by Neelam Khan

  I am developing an iPhone application for a university project and I'm new to iPhone development. I have looked through Apple's MapCallouts code but it doesn't seem feasible to implement it. So far my code displays a map, drops annotations, displays the title and it displays the right call out button. But this is where I encounter problems. When I press on the callout button, it displays a blank view controller but it should display a different image for every callout that's tapped and this isn't happening so far. I have added my code below: - (void)mapView:(MKMapView *)mapView annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control { //NSUInteger tag = ((UIButton *)control).tag; if (self.detailController==nil) { DetailViewController* detailViewController = [[DetailViewController alloc] init]; [self.navigationController pushViewController:detailViewController animated:YES]; } // self.detailController.tag =1; //to identify image required // self.detailController.tag = tag; [self.navigationController pushViewController:detailController animated:YES]; }

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• How do I manage specs in Scrum ?

  - by this. __curious_geek

  Referring to this buddy question, I want to know how one can manage specs in Scrum process ? I'm facing this problem while assigning tasks to my team for the sprint. Needless to say - I'm new to Agile/Scrum. Currently, we are using our own specs sheet to map StoryId to SpecId and vice versa. I'm getting the felling that Scrum is more about project management [getting things done on time] and you need a seperate process to manage specs and requirements. How do we manage specs in a Scrum process ?

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• First time unit testing (in silverlight)

  - by Jakob

  Hi I've searched some other posts, but most of them assumed that people knew what they were doing in their unit testing, and frankly I don't. I see the idea behind unit testing, and I'm coding an silverlight application much in the blind right now, and I'd like to write some unit tests to kind of be sure I'm on the right path. I'd like to be able to use the SL4 vs 2010 silverlight unit test project template, to keep it simple and not use external tools. So what I need an answer for are questions like: what are the methods of unit testing? what are the differences between unit tests, and automated unit tests? How do I meaningfully unit test in silverlight? What should I be aware of while unit testing (in silverlight) ? Also should I implement some kind of IRepository pattern in my silverlight app to make unit testing easier?

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• how to handle solutions/versioning in subversion

  - by Grayson Mitchell

  We are using ankhsvn to check in our .net code, however I have two issues with our setup that I want to resolve. 1\ I thought a key reason to have a tool like svn is that you can rollback to an earlier version of your codebase. If developers are just checking in code, then how can you get version 1.1 (say the current production build), out of subversion? 2\ In VS you have the concept of solutions, many solutions might use the same project. How do I make sure when a developer checks out a solution, they get the appropriate versions of the projects that belong to that solution?

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• Silverlight 4 Assembly Sharing Problem

  - by jeffn825

  I have a WPF .NET 4.0 class library referencing a Silverlight 4 class library. The SL library compiles fine but when I compile the WPF class library, I get: Error 2 Unknown build error, 'Cannot resolve dependency to assembly 'System.Windows, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.' MyProj.Presentation.Wpf I figure the problem must be similar to the one mentioned here: http://markti.spaces.live.com/blog/cns!D92CF278F0F91957!273.entry but my WPF library doesn't contain any XAML that references a user control from my SL library. In fact, my SL library doesn't have any XAML in it at all. It does, however, have several shared DependencyObjects, such as an EventCommander (binding UI element events to Commands), and some DataTemplate helpers. Is there any way I can narrow down the problem here? And has anyone found a way of effectively referencing UI elements in a SL4 project from .NET 4.0? Thanks.

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• How to store images without taking up huge amounts of RAM

  - by Sheeo

  I'm working on a silverlight project where users get to create their own Collages. The problem When loading a bunch of images by using the BitmapImage class, Silverlight hogs up huge unreasonable amounts of RAM. 150 pictures where single ones fill up at most 4,5mb takes up about 1,6GB of RAM--thus ending up throwing memory exceptions. I'm loading them through streams, since the user selects their own photos. What I'm looking for A class, method or some process to eliminate the huge amount of RAM being sucked up. I've tried using a WriteableBitmap to render the images into, but I find this method forces me to reinvent the wheel when it comes to drag/drop and other things I want users to be able to do with the images.

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• How to search for "R" materials?

  - by James Lavin

  "The Google" is very helpful... unless your language is called "R," in which case it spits out tons of irrelevant stuff. Anyone have any search engine tricks for "R"? There are some specialized websites, like those below, but how can you tell Google you mean "R" the language? If I'm searching for something specific, I'll use an R-specific term, like "cbind." Are there other such tricks? http://rweb.stat.umn.edu/R/doc/html/search/SearchEngine.html www.rseek.org http://search.r-project.org/ www.dangoldstein.com/search_r.html

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• Visual Studio 2008. MFC event wizard broken

  - by G Forty

  OK, so it's almost a programming question - The VS2008 dialog event wizard has stopped working. Double-clicking on a button in an MFC dialog project does not fire the wizard as usual and a right-click to get to the 'Add Event Handler...' shows a dialog with no message types. Further to this the MFC message mapping and virtual class listing that generally appears in the properties window (Alt + Enter) is now empty. Has anyone elese seen this and if so, how'd they fix it? I have 'repaired' my VS08 installation ... Thx++ Jerry

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• Popup extender "frozen" on code-behind exception.

  - by davandries

  Hi, In a C#/ASP.NET project, we're using an ajax modalpopupextender to display a "Processing..." message to the users. We're displaying it using a Javascript call in the code of the ASP.NET page. Then, in the code behind, we're doing some database operation, and hide again the popup using "popup.hide();" The problem is that when an exception occurs in the code behind, the popup is still displayed and the application does not handle errors as per the "customErrors" tag of the web.config. Any idea on how to deal with this kind of issues? Thanks, David

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• C# Assembly Xna.Framework.dll does not load

  - by jbsnorro

  When trying to load Microsoft.Xna.Framework.dll from any project, it throws a FileNotFoundException. The specified module could not be found. (Exception from HRESULT: 0x8007007E), with no innerException. Even the simple code like the following throws that exception: static void Main(string[] args) { Assembly.LoadFile(@"C:\Microsoft.Xna.Framework.dll"); } I run XP x64, but I've set the platform in the configuration manager to x86, because I know it shouldn't(doesn't) work on x64 or Any CPU. I've manually added the dll file to GAC, but that didn't solve the problem. I have also tried the M$ Assembly Binding Log Viewer to see if those logs had any useful information, but they didn't. Everything, the loading etc, was a success according to them. Any suggestions? please?

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• htaccess rewriterule being ignored

  - by hookedonwinter

  I have an .htaccess file that is not working properly. And it used to. Here is the file: RewriteEngine On # Category #Edit RewriteRule ^edit/([^/]+)/?$ /edit_solutions/index.php?category=$1 [L] RewriteRule ^edit/?$ /edit_solutions/choose.php [L] #Report RewriteRule ^reports/([^/]+)/?$ /report/report.php?project=$1 [L] RewriteRule ^reports/?$ /report/index.php #View RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^([^/]+)/?$ /view/index.php?category=$1 RewriteRule ^$ /view/choose.php RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d For some reason, links like mydomain.com/edit/butler/ are going to the view condition, not the edit condition. So the view is picking up the category as edit/butler/. Any ideas why the first condition isn't picking up that url correctly?

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• How does polymorphism work in Python?

  - by froadie

  I'm new to Python... and coming from a mostly Java background, if that accounts for anything. I'm trying to understand polymorphism in Python. Maybe the problem is that I'm expecting the concepts I already know to project into Python. But I put together the following test code: class animal(object): "empty animal class" class dog(animal): "empty dog class" myDog = dog() print myDog.__class__ is animal print myDog.__class__ is dog From the polymorphism I'm used to (e.g. java's instanceof), I would expect both of these statements to print true, as an instance of dog is an animal and also is a dog. But my output is: False True What am I missing?

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• Extending an entity

  - by Kim L

  I have class named AbstractUser, which is annotated with @MappedSuperclass. Then I have a class named User (@Entity) which extends AbstractUser. Both of these exist in a package named foo.bar.framework. When I use these two classes, everything works just fine. But now I've imported a jar containing these files to another project. I'd like to reuse the User class and expand it with a few additional fields. I thought that @Entity public class User extends foo.bar.framework.User would do the trick, but I found out that this implementation of the User only inherits the fields from AbstractUser, but nothing from foo.bar.framework.User. The question is, how can I get my second User class to inherit all the fields from the first User entity class? Both User class implementation have different table names defined with @Table(name = "name").

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• How do I customize what a third party MSM does?

  - by sqlrob

  I'm trying to convert a project in Visual Studio 2008 from static linking of the CRT to dynamic linking. This was easy enough, and I added the CRT MSM and policy MSM to my Wix file with no problems. I am not that happy with the MSI that is output though, it is much larger than what I expected. Looking at the MSI with Orca shows three copies of the CRT DLLs that I need. From looking at the conditions, one of the sets is used for pre-XP installs. Since the system requirements are XP and later, how do I remove this component without touching the original MSM? This needs to be done in an automated build, so Orca isn't a possible solution. Plus, when I tried it with Orca, the filesize remained the same after deleting the File and Component rows. And somewhat related, how do I set the permanent attribute in the components that remain?

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• New NCover 3.4.2 makes all my MSTest unit tests fail

  - by Steven

  Yesterday, I decided to install the newest NCover version (3.4.2). However, when I ran it on my existing .ncover configuration file, the NCover output suddenly reported that all my MSTest tests failed. Of course those tests succeed when ran within Visual Studio. Because of this, NCover isn't able to determine any coverage. Somehow the old configuration doesn't seem to work with the new version. Does anyone have any idea what the problem could be or how to solve it? Btw. Here is my ncover configuration. Project settings: Path to application to profile: c:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\MSTest.exe Arguments for the application to profile: /testcontainer:D:\dev\MyApp\MyApp.Services.Tests.Unit\bin\Debug\MyApp.Services.Tests.Unit.dll /testcontainer:D:\dev\MyApp\MyApp.WS.Tests.Unit\bin\Debug\MyApp.WS.Tests.Unit.dll Working folder: D:\dev\MyApp

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• Using java.util.logging, is it possible to restart logs after a certain period of time?

  - by Fry

  I have some java code that will be running as an importer for data for a much larger project. The initial logging code was done with the java.util.logging classes, so I'd like to keep it if possible, but it seems to be a little inadequate now given he amount of data passing through the importer. Often times in the system, the importer will get data that the main system doesn't have information for or doesn't match the system's data so it is ignored but a message is written to the log about what information was dropped and why it wasn't imported. The problem is that this tends to grow in size very quickly, so we'd like to be able to start a fresh log daily or weekly. Does anybody have an idea if this can be done in the logging classes or would I have to switch to log4j or custom? Thanks for any help!

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• Very slow Eclipse 4.2, how to make it more responsive?

  - by Laurent

  I'm using Eclipse PDT on a rather large PHP project and the IDE is almost unusable. It takes nearly 30 seconds to open a file, and other actions, like selecting a folder in the file explorer, editing some text, etc. are equally slow. I followed various instructions to speed it up but nothing seems to work. This is my current eclipse.ini file. Any idea how I can improve it? -startup plugins/org.eclipse.equinox.launcher_1.3.0.v20120522-1813.jar --launcher.library plugins/org.eclipse.equinox.launcher.win32.win32.x86_1.1.200.v20120522-1813 -showsplash org.eclipse.platform --launcher.XXMaxPermSize 256m --launcher.defaultAction openFile -vmargs -server -Dosgi.requiredJavaVersion=1.7 -Xmn128m -Xms1024m -Xmx1024m -Xss2m -XX:PermSize=128m -XX:MaxPermSize=128m -XX:+UseParallelGC System: Eclipse 4.2.0, Windows 7, 4 GB RAM

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• What build param(s) to use so VS 2010 can gen .obj & link .objs but NOT create an .exe?

  - by Csourcecode

  Question title pretty much asks it all. I know I could set the project to be a .lib build and have it fail to build/link a .lib .... and the .objs tend to be in the appropriate config dir That seems like a shi*-a** backdoor way to get VS to gen objs Is there a flag/param I can set somewhere in the property sheet properties/options for Visual Studio so it links what it needs to & gens the respective objs for each source file? It's so freaking easy to just gen object files using gcc (and link in appropriate lib routines WITHOUT creating an executable) ... I'm sure I could also hack up a custom build rule but that seems like overkill [and since I'm not up to speed on the build rules for whatever version of make VS 2010 is using it's easier to ask someone else here for the simple solution]

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• Hudson, C++ and UnitTest++

  - by Gilad Naor

  Has anyone used Hudson as a Continuous-Integration server for a C++ project using UnitTest++ as a testing library? How exactly did you set it up? I know there have been several questions on Continuous Integration before, but I hope this one has a narrower scope. EDIT: I'll clarify a bit on what I'm looking for. I already have the build set to fail when the Unit-Tests fail. I'm looking for something like Hudson's JUnit support. UnitTest++ can create XML reports (See here). So, perhaps if someone knows how to translate these reports to be JUnit compatible, Hudson will know how to eat it up?

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• what's an option strict and explicit?

  - by Ygam

  I saw this post: "Typos… Just use option strict and explicit please.. during one software development project, which I was on as a consultant, they were getting ridiculous amounts of errors everywhere… turned out the developer couldn’t spell and would declare variables with incorrect spelling.. no big deal, until you use the correct spelling when you’re assigning a value to it… and you had option explicit off. Ouch to them…" what is an option strict and explicit anyway? I have googled it up but can't get the idea (because mostly it's Visual Basic, I'm doing PHP)

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• Double Negation in C++ code.

  - by Brian Gianforcaro

  I just came onto a project with a pretty huge code base. I'm mostly dealing with C++ and a lot of the code they write uses double negation for their boolean logic. if (!!variable && (!!api.lookup("some-string"))) { do_some_stuff(); } I know these guys are intelligent programmers, it's obvious they aren't doing this by accident. I'm no seasoned C++ expert, my only guess at why they are doing this is that they want to make absolutely positive that the value being evaluated is the actual boolean representation. So they negate it, then negate that again to get it back to its actual boolean value. Is this a correct? or am I missing something else? Thanks, Brian Gianforcaro

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• Architecture of chatroulette

  - by user317163

  Could somebody explain to me the architecture behind chatroulette? I was thinking about a similar project that would only implement Audio support (for starters). Is the best way to set this up a flash server? If so, how should I go about getting into flash, will I need flex 4? I have some beginner experience with c++, c# and java but I have never developed anything for the web. I was also wondering how the randomizer matches up the participants. How would you code something like this. Im obviously pretty clueless here and I'd greatly appreciate some advice regarding this problem -- I don't expect copy and paste solutions. It would just be nice to hear how you guys would tackle this problem. Thank you very much

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• List of generic algorithms and data structures

  - by Jake Petroules

  As part of a library project, I want to include a plethora of generic algorithms and data structures. This includes algorithms for searching and sorting, data structures like linked lists and binary trees, path-finding algorithms like A*... the works. Basically, any generic algorithm or data structure you can think of that you think might be useful in such a library, please post or add it to the list. Thanks! (NOTE: Because there is no single right answer I've of course placed this in community wiki... and also, please don't suggest algorithms which are too specialized to be provided by a generic library) The List: Data structures AVL tree B-tree B*-tree B+-tree Binary tree Binary heap Binary search tree Linked lists Singly linked list Doubly linked list Stack Queue Sorting algorithms Binary tree sort Bubble sort Heapsort Insertion sort Merge sort Quicksort Selection sort Searching algorithms

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