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• Deployment project not updating .exe

  - by Stuart Dunkeld

  I have a Winforms project with a single .exe file as the primary output. I'm using a deployment project to distribute it, but the .exe file is not being updated when the new version is installed, meaning I have to ask the users to manually uninstall and then install the new version. Here's what I'm doing: I increment the assembly version on the output project (which is the primary output of the deployment project) I increment the deployment project version (and update the product code when prompted) The deployment project is set to remove previous versions the 'Permanent' property on the .exe is set to False I'm sure I've done this before successfully, but I can't seem to do it now. What am I doing wrong? Edit: I got it to work by changing the file version in the project properties, as in this answer

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• Restoring a "Canceled" event with Google Calendar API?

  - by user283182

  I'm trying to change the status of an event back from "canceled" to "confirmed" using Google Calendar API (I'm using .NET but an answer in any language would help) but I get GDataRequestException error: "You can't modify a cancelled event" If I've used the API to delete an event in a repeating series, for example, is it possible to change the status of the resulting recurrence exception (there's no EXDATE, just a new "canceled" event that is only visible when the feed is requested with start and end date) to "confirmed" (or even delete the resulting exception completely) in order to restore the repeating series to the original state? event.Delete() and event.Update() don't even see the event any longer once it's been .canceled. event.Update() gives the above error. Thanks!

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• svn cat for git

  - by sanxiyn

  I am looking for the equivalent of svn cat in git. Yes, I am aware that the similar question was asked here. The answer is to use git show rev:path. However, svn cat can be used for the remote repository. That is, I can do svn cat url@rev and get the file from the specified revision of the remote repository, without getting the whole repository. My understanding is that git show only applies to the local repository. A workaround I found is to use gitweb interface to get the blob.

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• What happens when Npgsql connection pool reaches Max

  - by ClearCarbon

  Both the name of the connection string parameter and this blog post - http://fxjr.blogspot.co.uk/2010/04/npgsql-connection-pool-explained.html - lead me to believe that Npgsql wont exceed the MaxPoolSize value set in the connection string. However the docs (http://npgsql.projects.postgresql.org/docs/manual/UserManual.html) say "Max size of connection pool. Pooled connections will be disposed of when returned to the pool if the pool contains more than this number of connections. Default: 20" This suggests that the pool can actually grow larger than MaxPoolSize and it is in fact just a level at which Npgsql starts to aggressively remove connections from the pool as soon as they are returned. I've been searching to try and find an answer but I can find out exactly what happens when you reach MaxPoolSize. Anyone else know? edit: I should add we are using Npgsql 2.0.6.0 due to another dependency being supported only up to that version.

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• TDD and UML together

  - by uther-lightbringer

  Hello, I'm new to TDD approach so I'm wondering if anyone experienced wit this could enlighten me a little. I would like to get some leads how to use UML and TDD methodology together. I've been used to: Design with UML -- Generate skeleton classes (and then keep it synchronized) - Implement and finally Test. I must admit that testing part was the worst one, so I started to look for something else - TDD. So I have some general knowledge what is it about but before I proceed further, I am interested knowing how it goes together with software design especially UML. So when I first design/create test, how can UML fit in? Would it be possible to design classes first, from them create skeleton classes, from them generate Unit tests which would be "filled" before actual implementation of UML pregenerated classes, would this approach break whole TDD? Or is there any other way that would keep UML and TDD together? Thanks everyone for answer.

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• Are there any pitfalls to var something = something || {}

  - by puk

  I came across this answer where the poster suggested that the shorthand for if(typeof MyNamespace === 'undefined'){ var MyNamespace = {}; } is var MyNamespace = MyNamespace || {}; Would veteran programmers recommend the latter to simplify the code, or does it overly complicate things, like abusing ++ or -- in complex compound statements? EDIT The reason I asked is b/c a while back someone inspired me by pointing out that a lot of the people who think they are expert programmers make a lot of beginners mistakes. The case at the time was if (isReady){ //Do Something } And what he was saying is that a condition should mean something, isReady doesn't 'mean' anything, instead, we should use if (isReady === true){ //Do Something }

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• Using a single visual studio 2005 solution with multiple source control applications

  - by Bas Bossink

  In my recent SO question I was helped tremendously in using git as a front-end to ClearCase. However actually trying the suggested answer(s) led to further complications. Visual Studio keeps a reference to the used source control provider in both the .sln as well as the .csproj files. I tried resolving this issue by keeping a modified copy of the .sln with the source control provider paragraph removed but this did not help since each project also has some source control provider information. I don't want to keep private copies of all the projects since this would be a maintenance nightmare. Do any of you have suggestions on how to resolve this issue?

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• How to handle request-wise DB transactions in ASP.NET MVC?

  - by Dario Solera

  I'm using SubSonic 3.0 (SimpleRepository) to handle database access in my ASP.NET MVC 1.0 application. It would be nice to handle a transaction for every web request, committing if everything went smooth and rolling back in case of exception. Is this possible? If so, how? I know this topic has been discussed many times, but I just couldn't find a satisfactory answer. I have built my own solution (create a TransactionScope in the controller, then commit/rollback in OnActionExecuted), but it turns out to be very unreliable.

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• How to tell Eclipse 3.4 WTP to not restart tomcat on JSP save?

  - by Boden

  Whenever I save a JSP file in my WTP project, Eclipse restarts its Tomcat instance. This is sorta driving me nuts. I don't want to disable auto reload completely, I just don't want it to happen when I save a file that doesn't require a restart. I'm not sure how Eclipse WTP works in this regard. Could it be my project structure? The JSP files are in WEB-INF/jsp. (this SO question is similar to mine, but doesn't have a sufficient answer) EDIT: I want auto-reloading to happen, but not for file saves that do not require it. When I save a JSP there is no reason to have Tomcat restart. Thus what I'm looking for, if possible, is a smarter way for reloading to happen.

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• Deletion procedure for a Binary Search Tree

  - by Metz

  Consider the deletion procedure on a BST, when the node to delete has two children. Let's say i always replace it with the node holding the minimum key in its right subtree. The question is: is this procedure commutative? That is, deleting x and then y has the same result than deleting first y and then x? I think the answer is no, but i can't find a counterexample, nor figure out any valid reasoning. EDIT: Maybe i've got to be clearer. Consider the transplant(node x, node y) procedure: it replace x with y (and its subtree). So, if i want to delete a node (say x) which has two children i replace it with the node holding the minimum key in its right subtree: y = minimum(x.right) transplant(y, y.right) // extracts the minimum (it doesn't have left child) y.right = x.right y.left = x.left transplant(x,y) The question was how to prove the procedure above is not commutative.

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• Target .Net Framework 4 in t4 templates

  - by HeavyWave

  We have a template that goes like this <#@ template language="C#v3.5" #> <#@ assembly name="System.dll" #> <#@ assembly name="System.Core.dll" #> <#@ assembly name="System.Data.Linq.dll" #> It compiles and runs on .Net 3.5, but after we have switched to .Net 4 the template has stopped working, so I've tried using answer from here, but I get errors like this Error 99 Compiling transformation: Metadata file 'System.Data.Linq.dll' could not be found How do I correctly modify the template to run on .Net Framework 4?

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• How do I make a universal iPhone / iPad application that programmatically uses UISplitViewController

  - by arash13

  I couldn't find a good answer anywhere to this. I am using a UINavigationController for my iPhone app, with everything is generated programmatically, nothing in Interface Builder. I am trying to port my app to iPad, using a UISplitViewController and my existing UINavigationController, but I am not sure where I should have the logic of my program separating the view controllers for iPhone or iPad. Do I set up my main file to use a different app delegate or do I use the same app delegate and have the user interface conditionally set up within it? Besides this, whenever I try to compile my app on the simulator it does not recognize the UISplitViewController or even the condition in which I check if the class exists. Can please someone put me in the right direction, remembering that I am not using any xibs?

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• CommunicationException in WCF

  - by user343159

  Hi I have a problem with a WCF Service I've just created. This was working yesterday but for some reason it's just stopped working. One of my WCF methods returns an array of an Entity Framework entity, like this: public BranchContactDetail[] GetClosestBranches(string postcode, int howManyBranches) { GeoLocation geoLocation = GetLocationFromPostcode(postcode); Location location = new Location(geoLocation.Latitude, geoLocation.Longitude); using (BranchDirectoryEntities entities = new BranchDirectoryEntities()) { var branchesInOrder = entities.BranchContactDetails .Where(b => b.latitude.HasValue && b.longitude.HasValue ) .OrderBy(b => location.DistanceFrom(b.latitude, b.longitude)) .Take(howManyBranches) .ToArray(); return branchesInOrder; } } ...and, as I say, this was working fine yesterday. Now I'm getting a "The underlying connection was closed: The connection was closed unexpectedly." I've hunted all over the web but no-one seems to know the answer. Anyone shed any light on this issue? Regards, Mark

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• My webservice works with soapclient.com but not with soapsonar software:

  - by Rebol Tutorial

  I have put a webservice I found here http://www.rebolforces.com/zine/rzine-1-02/#sect6. on my own website. I tested http://reboltutorial.com/discordian.wsdl with http://www.soapclient.com/soaptest.html it did work as I got this answer Sweetmorn, Discord 48, Year of Our Lady of Discord 3176 But doing the same thing with soapsonar gives me this response instead: <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>301 Moved Permanently</title> </head><body> <h1>Moved Permanently</h1> <p>The document has moved <a href="http://reboltutorial.com/cgi-bin/discordian.cgi">here</a>.</p> </body></html> Is soapsonar buggy or did I mischief something ?

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• What kind of assemblies can be called using P/Invoke ?

  - by milan

  Hi all, I allready asked at: Is it possible to call unmanaged code using C# reflection from managed code ? if it is possible to call C/C++ library unmanaged function with Invoke and reflection from .NET and the answer is yes. What I am not clear about is can I call using P/Invoke ANY assembly written/compiled/build with other compilers on my Windows PC like Labwindows/CVI(have some kind of C compiler) or Java written dll's, exe. If this is possible is it the same as explained in above given link using "Marshal.GetDelegateForFunctionPointer" ? Thanks! Milan.

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• The Reason of Service Termination

  - by Mariusz

  I use a service application I created in Delphi. My problem is that it is sometimes terminated by the operating system and I don't know why this happens. When I go the the system events, I can find a piece of information like this one: Event ID: 7034, The [...] service terminated unexpectedly. It has done this [...] time(s). I know you can't give me an answer why this happens, but could you please give me a clue what to pay attention to to find the reason of that behaviour? For instance what kind of exceptions could make the OS close an application. Thank you in advance.

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• Hudson build defaults

  - by toluju

  This has been a fairly long-standing problem for us with our Hudson installation, and searching around the Hudson Wiki / Issue Tracker hasn't yielded any insight to this. The question: Is it possible to set certain default values for a maven2 build in Hudson? For example, we want all our projects to run the "clean" goal before a build, we want all our builds to poll the SCM hourly, and we want all our builds to deploy to our maven repository on build success. Right now, we have to manually set these setting for every project individually, which can be rather time consuming as we have 30+ different projects all being managed by Hudson. This is especially annoying if we need to change a particular setting that will affect all projects (e.g. change the repository URL). Given that I couldn't find any mention of this on the Wiki or Issue Tracker leads me to believe that I'm missing something obvious, but I cannot find an answer on my own.

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• fcgio.cpp: In destructor 'virtual fcgi_streambuf::~fcgi_streambuf()':

  - by skyeagle

  I am attempting to build fastcgi on a Linux Ubuntu 10.x machine. I run the following commands: ./configure make and I get the following error: fcgio.cpp: In destructor 'virtual fcgi_streambuf::~fcgi_streambuf()': fcgio.cpp:50: error: 'EOF' was not declared in this scope fcgio.cpp: In member function 'virtual int fcgi_streambuf::overflow(int)': fcgio.cpp:70: error: 'EOF' was not declared in this scope fcgio.cpp:75: error: 'EOF' was not declared in this scope fcgio.cpp: In member function 'virtual int fcgi_streambuf::sync()': fcgio.cpp:86: error: 'EOF' was not declared in this scope fcgio.cpp:87: error: 'EOF' was not declared in this scope fcgio.cpp: In member function 'virtual int fcgi_streambuf::underflow()': fcgio.cpp:107: error: 'EOF' was not declared in this scope make[2]: *** [fcgio.lo] Error 1 make[2]: Leaving directory `/somepath/fcgi-2.4.0/libfcgi' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/somepath/fcgi-2.4.0' make: *** [all] Error 2 I notice that others have had the same problem and have asked this question in various fora etc - however, I have not as yet, seen an answer to this question/problem. Has anyone ever managed to build fastcgi on Linux? How do I fix this problem?

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• NumPy: how to quickly normalize many vectors?

  - by EOL

  How can a list of vectors be elegantly normalized, in NumPy? Here is an example that does not work: from numpy import * vectors = array([arange(10), arange(10)]) # All x's, then all y's norms = apply_along_axis(linalg.norm, 0, vectors) # Now, what I was expecting would work: print vectors.T / norms # vectors.T has 10 elements, as does norms, but this does not work The last operation yields "shape mismatch: objects cannot be broadcast to a single shape". How can the normalization of the 2D vectors in vectors be elegantly done, with NumPy? Edit: Why does the above not work while adding a dimension to norms does work (as per my answer below)?

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• How come the Name property is <Unknown> on a FileStream which uses handle constructors?

  - by Mikael Svenson

  Say you get a file handle from some outside DLL and instantiate a FileStream with it. It works just fine for reading and writing. Then you want the path and name of that handle and try to access the Name property of your FileStream object, and it returns 'unknown'. This is true for the constructors which takes file handles: public FileStream(IntPtr handle, ... public FileStream(SafeFileHandle handle, ... I know the short answer, because it's not implemented. The private field _fileName of FileStream is never assigned in those constructors. Seems the API to get the name from a handle involves more than one line of code, but I still think they could have bothered to include this. So the real questions is: Why haven't they? Or did they just forget?

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• Is lock returned by ReentrantReadWriteLock equivalent to it's read and write locks?

  - by Todd

  Hello, I have been looking around for the answer to this, but no joy. In Java, is using the lock created by ReentrantReadWriteLock equivalent to getting the read and write locks as returned by readLock.lock() and writeLock.lock()? In other words, can I expect the read and write locks associated with the ReentrantReadWriteLock to be requested and held by synchronizing on the ReentrantReadWriteLock? My gut says "no" since any object can be used for synchronization. I wouldn't think that there would be special behavior for ReentrantReadWriteLock. However, special behavior is the corner case of which I may not be aware. Thanks, Todd

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• number of days in a period that fall within another period

  - by thomas

  I have 2 independent but contiguous date ranges. The first range is the start and end date for a project. Lets say start = 3/21/10 and end = 5/16/10. The second range is a month boundary (say 3/1/10 to 3/31/10, 4/1/10 to 4/30/10, etc.) I need to figure out how many days in each month fall into the first range. The answer to my example above is March = 10, April = 30, May = 16. I am trying to figure out an excel formula or VBA function that will give me this value. Any thoughts on an algorithm for this? I feel it should be rather easy but I can't seem to figure it out. I have a formula which will return TRUE/FALSE if ANY part of the month range is within the project start/end but not the number of days. That function is below. return month_start <= project_end And month_end >= project_start

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• Is SynchronizationContext.Post() threadsafe?

  - by cyclotis04

  This is a pretty basic question, and I imagine that it is, but I can't find any definitive answer. Is SynchronizationContext.Post() threadsafe? I have a member variable which holds the main thread's context, and _context.Post() is being called from multiple threads. I imagine that Post() could be called simultaneously on the object. Should I do something like lock (_contextLock) _context.Post(myDelegate, myEventArgs); or is that unnecessary? Edit: MSDN states that "Any instance members are not guaranteed to be thread safe." Should I keep my lock(), then?

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• Dynamically allocated structure and casting.

  - by Simone Margaritelli

  Let's say I have a first structure like this: typedef struct { int ivalue; char cvalue; } Foo; And a second one: typedef struct { int ivalue; char cvalue; unsigned char some_data_block[0xFF]; } Bar; Now let's say I do the following: Foo *pfoo; Bar *pbar; pbar = new Bar; pfoo = (Foo *)pbar; delete pfoo; Now, when I call the delete operator, how much memory does it free? sizeof(int) + sizeof(char) Or sizeof(int) + sizeof(char) + sizeof(char) * 0xFF ? And if it's the first case due to the casting, is there any way to prevent this memory leak from happening? Note: please don't answer "use C++ polymorphism" or similar, I am using this method for a reason.

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• What web server should I use if I want to run Java code behind it?

  - by Boaz

  At the moment, I have lot's of Java which does all kind of nifty stuff and I'm happy with it. The code is command line driven which have been great so far, but I recently decided I want to make the functionality available through web-services. Since my is complex and I'm happy with the way it's written , I don't want go through the pain of porting it to other languages. So I set out on a google journey to find out what web servers exist (on a Linux machine, though it's interesting to hear the answer without that limitation). From what I could find, it seems that there are two viable options: Apache Tomcat and Sun Java Server. What are the reason to choose one on top of the other? what are the strength of each and what are the weaknesses? Or, perhaps, there is a third one which is much easier, flexible and less cumbersome. Anyone?

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