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• Misc. Naming: Can I place underscores instead of camel casing in modern languages?

  - by Bubba88

  Hi! I would like to ask some kind of permission (I hope that doesn't sound strange) from the people who have influence on the naming conventions in modern languages like F#, Scala, etc. My problem is - I just can't read camelCased code and wish I could write underscored_names at least in my internal implementations (not in API interface). This applies to just everything - local var names, method names, params.. (Not class names I think) It seems that now the camel-casing is preferred for example for the names of object methods, but could that be not the only way? What would you say; Can I go with underscored names in languages like I mentioned (F#, Scala)?

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• How to turn off Video Acceleration programatically.

  - by Stefan

  Im using the Windows Media Player OCX in a program runned on hundreds of computers (dedicated). I have found out that when video acceleration is turned on to "full", on some computers it will cause the video to fail to play correct, with green squares between movies and so on. Turn the acceleration to "None" and everything is fine. This program is runned on ~800 computers that will autoupdate my program. So I want to add to the startup to my program that it turns off the video acceleration. The question is, how do I turn off video Acceleration Programatically? All computers are running XP and at least the second service pack. It would take me ages to manually logg in to all those computers and change that setting so thats why I want the program to be able to do it automagically for me.

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• MVVM where does the code to load the data belong?

  - by cody

  As I wrap my head around the mvvm thing, the view is the view, and the viewmodel is 'a modal of a view' and the model are the entities we are dealing with (or at least that is my understanding). But I'm unclear as to what and when the model entities are populated. So for example: Lets say I have app that needs to create a new record in a DB. And that record should have default values to start with. Who is responsible for the new record, and getting the default values. Does this have anything to do with MVVM or is that part of a data access layer? Who calls the the viewmodel? Or for existing records when\where are the records retrieved? And saved if altered? Thanks

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• Use LINQ to count the number of combinations existing in two lists

  - by Ben McCormack

  I'm trying to create a LINQ query (or queries) that count the total number of occurences of a combinations of items in one list that exist in a different list. For example, take the following lists: CartItems DiscountItems ========= ============= AAA AAA AAA BBB AAA BBB BBB CCC CCC DDD The result of the query operation should be 2 since I can find two combinations of AAA and BBB (from DiscountItems) within the contents of CartItems. My thinking in approaching the query is to join the lists together to shorten CartItems to only include items from DiscountItems. The solution would be to find the CartItem in the resulting query that occurs the least amount of times, thus indicating how many combinations of items exist in CartItems. How can this be done? Here's the query I already have, but it's not working. query results in an enumeration with 100 items, far more than I expected. Dim query = From cartItem In Cart.CartItems Group Join discountItem In DiscountGroup.DiscountItems On cartItem.SKU Equals discountItem.SKU Into Group Select SKU = cartItem.SKU, CartItems = Group Return query.Min(Function(x) x.CartItems.Sum(Function(y) y.Quantity))

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• R: simple and short if clauses for combind statements

  - by jorgusch

  Hello, TRUE/FALSE if clauses are easily and quickly done in R. However, if the argument gets more complex, it also gets ugly very soon. For instance: I might want to execute different operations for a row(foo) dependent on the value in one cell (foo[1]). Let the intervals be 0:39 and 40:59 and 60:100 Something like does not exit: (if foo[1] "in" 40:60){... In fact, I only see ways of at least two if clauses and two else statements and the action for the first interval somewhere at the bottom of the code. With more intervals(or any other condition) it is getting more complex. Is there a best practice (for this purpose or others) with a simple construction and nice design to read? Thanks a lot!

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• Experience using IRC to coordinate software development?

  - by momeara

  I am part of a growing software project with at least 200 active developer in 10 locations. I would like to set up an on-line chat forum for developers because I think it would help to coordinate efforts. We have an email mailing list but I feel like some questions or announcements are too informal to send to everyone while mentioning it in a chat forum might be a useful community resource. I have never participated in a software project that used an on-line chat forum so I would like to hear about peoples experiences. I am particularly interested in technical issues: Use of IRC vs. alternative platforms; how to manage access, eg. for developers only, allowing users to participate; the value of requiring certain announcements to be made on the chat forum eg who is resolving broken builds etc. If I pitch the idea to the community I would like to have some good arguments why it would be a good idea and some prospective of its usefulness in other software projects.

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• Can I move the order of XCode, Cocoa, and User Templates around in XCode 3.1?

  - by Warren P

  I followed the other questions on StackOverflow and made custom User Templates. Instead of replacing the factory default Cocoa class template, I have to pick a new user template. The order that is shown in XCode's New File dialog box is: iPhone templates first (great if you mostly do iphone development) Second the User templates Third the default Mac OS templates. I want my user stuff first, Mac OS templates second, and I want to bury iPhone templates in third and last place. The sort is obviously not alphabetical. And you can't drag/drop reorder. (At least not in xcode 3.1.3)? From stackoverflow

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• Controlling CodeModel's code output formatting: putting lines between namespace declarations

  - by devoured elysium

  I'm making some experiments with Visual Studio's CodeModel. I tried creating a file with two namespaces in there through VS's Code Model: CodeModel codeModel = projItem.ContainingProject.CodeModel; codeModel.AddNamespace("Namespaces.FirstNamespace", "namespacestest.cs"); codeModel.AddNamespace("Namespaces.SecondNamespace", "namespacestest.cs"); the output of such code is: //file namespacestest.cs namespace Namespaces.FirstNamespace { } namespace Namespaces.SecondNamespace { } Which is almost what I'm looking for. The only catch here is that I'd like to control the spacing: having at least one line between the first and the second namespace. Does by chance anyone know of a way of achieving this? This is what I want: //file namespacestest.cs namespace Namespaces.FirstNamespace { } namespace Namespaces.SecondNamespace { } Thanks

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• Facebook insights for websites does not match on-site Facebook button counts

  - by Will

  I use Facebook Insights for websites and Facebook buttons on my site. However, the data reported by the two do not match. It always seems to be the case that the count reported by the buttons is significantly higher than the count reported in Facebook Insights. For example, this page http://www.appmyworld.com/blog/top-5-iphone-and-ipad-apps-of-the-week-10412.html has a count of 52 for Facebook which is made up of 19 likes, 21 shares and 12 comments according to AddThis and confirmed by http://sharedcount.com However, going into Facebook Insights for my website and looking at that specific page it shows only 4 total actions which is made up of 1 like and 3 shares. At the very least I would expect it to show a total count of 40 made up of 19 likes and 21 shares (I'm not sure it would track the 12 comments). Any thoughts on why this may be happening? My concern is if our website is not getting credit for the Facebook activity?

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• Choosing a design pattern for a class that might change it's internal attributes

  - by the_drow

  I have a class that holds arbitrary state and it's defined like this: class AbstractFoo { }; template <class StatePolicy> class Foo : public StatePolicy, public AbstractFoo { }; The state policy contains only protected attributes that represent the state. The state might be the same for multiple behaviors and they can be replaced at runtime. All Foo objects have the same interface to abstract the state itself and to enable storing Foo objects in containers. I would like to find the least verbose and the most maintainable way to express this.

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• Barplot in R, aggregation of sampled data

  - by Felix

  Hello, I want an stacked barplot, or at least two barplots (histogramms) of the data below. But I cant't figure out how. plot(online) is not the solution, I´m looking for. Please see below. online offline 1 sehrwichtig wichtig 2 wichtig unwichtig 3 sehrwichtig unwichtig 4 sehrwichtig sehrwichtig 5 sehrwichtig sehrwichtig 6 sehrwichtig unwichtig 7 sehrwichtig unwichtig 8 wichtig wichtig 9 wichtig unwichtig 10 sehrwichtig sehrwichtig 11 sehrwichtig wichtig 12 sehrwichtig unwichtig 13 wichtig sehrwichtig 14 sehrwichtig wichtig I know I need a step, where the data is aggregated to: online offline sehrwichtig 6 7 unwichtig 0 1 wichtig 3 5 But how?

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• Is it a good idea to use .Net for commercial software?

  - by user146780

  I was playing around with .Net reflector today and realized that Miicrosoft's entire Expression suite is written in .Net. As a result I was pretty much able to see the underlying code for expression. This makes it far easier than binary to break copy protection. I think that that's a big deal. Is it generally recommended to make commercial software in .Net where it is fairly easy to see the source code down to the variable names? I was surprised that Microsoft didn't at least dotfescate it. Thanks

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• SEO URL building - simple or hierarchy

  - by Pawel

  I run an online shop and I wonder what would be more SEO-friendly URL for a product page: a) domain.com/category-name/product-name OR b) domain.com/product-name I already have URL-s for product category pages with format domain.com/category-name. On one hand I heard (but cannot find proof for) that Google like tree hierarchies in URL (vote for "a"). On the other hand though longer URL could lead to smaller kewyord density, also "product_name" comes as the last URL part so probably the least important (vote for "b"). Maybe both options are equally SEO-effective? PS. I know about canonical URL's but this is not the case, I don't want/need both URL's formats, just want to choose the best.

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• Objetive C - Calling Methods in objects.

  - by Mace

  I'm new to Objective C, and I seem to be struggling with accessing a method of an object I created. I'm checking out the documentation , but I'm not entirely sure tha tthis is a job for a delegate. For example I have an object (1) that creates another object (2). I can access a method of the object (2) after I create it, but I can't access it from a method of object (1). I get a error that the object was not defined in this scope. If anyone can help I greatly appreciate it. I just need a nudge in the right direction so that I can at least get a grasp on how to think about the interaction between the objects.

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• In SharePoint, how can the "Issue ID" column of an issues list be included in the detail form (DispF

  - by Jesse C. Slicer

  We've created a pretty standard issue tracking system based off of SharePoint's template with just a few extra columns. On the list view (AllItems.aspx), the first column is called "Issue ID" and has a number. Our developers and QC use that number in discussions. However, that number doesn't seem to want to show up on the detail form (DispForm.aspx) nor in the alert email. Can this field be included in at least one of these communication methods? If so, how? Thank you.

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• How to specify a different column for a @Inheritance JPA annotation

  - by Cue

  @Entity @Inheritance(strategy = InheritanceType.JOINED) public class Foo @Entity @Inheritance(strategy = InheritanceType.JOINED) public class BarFoo extends Foo mysql> desc foo; +---------------+-------------+ | Field | Type | +---------------+-------------+ | id | int | +---------------+-------------+ mysql> desc barfoo; +---------------+-------------+ | Field | Type | +---------------+-------------+ | id | int | | foo_id | int | | bar_id | int | +---------------+-------------+ mysql> desc bar; +---------------+-------------+ | Field | Type | +---------------+-------------+ | id | int | +---------------+-------------+ Is it possible to specify column barfo.foo_id as the joined column? Are you allowed to specify barfoo.id as BarFoo's @Id since you are overriding the getter/seeter of class Foo? I understand the schematics behind this relationship (or at least I think I do) and I'm ok with them. The reason I want an explicit id field for BarFoo is exactly because I want to avoid using a joined key (foo _id, bar _id) when querying for BarFoo(s) or when used in a "stronger" constraint. (as Ruben put it)

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• Java + Eclipse + Pulpcore

  - by cable729

  I've never programmed in java or eclipse before, although I have used c# and visual studio. I'm trying to get started with java development, and develop 2d games, but I can't get the project to run. I've followed the tutorial here: http://cloningtheclassics.com/getting-started-with-pulpcore/ I've retried the tutorial at least 5 times, and I still can't get it to work. The error it displays is: Buildfile: C:\workspace\javapulp\project\build.xml [taskdef] Could not load definitions from resource tasks.properties. It could not be found. [taskdef] Could not load definitions from resource tasks.properties. It could not be found. -init: BUILD FAILED C:\workspace\javapulp\project\build.xml:127: Required file not found: ../../build/pulpcore-applet-debug-0.11.jar Total time: 1 second Thanks in advance!

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• What are the Ruby Gotchas a newbie should be warned about?

  - by MiniQuark

  I have recently learned the Ruby programming language, and all in all it is a good language. But I was quite surprised to see that it was not as simple as I had expected. More precisely, the "rule of least-surprise" did not seem very respected to me (of course this is quite subjective). For example: x = true and false puts x # displays true! and the famous: puts "zero is true!" if 0 # zero is true! What are the other "Gotchas" you would warn a Ruby newbie about?

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• Warning as Error - How to rid these

  - by coffeeaddict

  I cannot figure out how to get rid of errors that basically should not be halting my compile in VS 2010 and should not be show stoppers, or at least I will fix them later but I don't want the compile to just error and halt on these kinds of problems. For example I'm getting the following error: Error 1 Warning as Error: XML comment on 'ScrewTurn.Wiki.SearchEngine.Relevance.Finalize(float)' has a paramref tag for 'IsFinalized', but there is no parameter by that name C:\www\Wiki\Screwturn3_0_2_509\SearchEngine\Relevance.cs 60 70 SearchEngine for this code: /// /// Normalizes the relevance after finalization. /// /// The normalization factor. /// If is false ( was not called). public void NormalizeAfterFinalization(float factor) { if(factor < 0) throw new ArgumentOutOfRangeException("factor", "Factor must be greater than or equal to zero"); if(!isFinalized) throw new InvalidOperationException("Normalization can be performed only after finalization"); value = value * factor; } I looked in Tools | Options and I don't see where I can tweak the compiler and tell it not to worry about comment or XHTML based errors.

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• Where would async calls make sense in an ASP.net (MVC) Web Application?

  - by Michael Stum

  I'm just wondering, if I have an ASP.net Web Application, either WebForms or MVC, is there any situation where doing stuff asynchronously would make sense? The Web Server already handles threading for me in that it spins up multiple threads to handle requests, and most request processing is rather simple and straight forward. I see some use for when stuff truly is a) expensive and b) can be parallelized. but these are the minority cases (at least from what I've encountered). Is there any gain from async in the simple "Read some input, do some CRUD, display some output" scenario?

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• How to access a list in OCaml

  - by Erik

  I want to write a function that could check every item in a list is true or false. If at least one element is false, it will return true, so that: assert_eq "checkFalse [true; false; true]" (checkFalse [true; true; true]) false; assert_eq "checkFalse [false; false]" (checkFalse [false; true]) true; I am an absolute beginner in OCaml and I don't know how to approach this. I tried using a for loop, something like: let rec checkFalse (bools: bool list) : bool = for i = 0 to bools.length do if bools.length == false then false else... (I don't know how to continue) Then it said "Unbound record field...." I also tried using find like: if (find false bools != Not_found) then true else false But my ways did not work. I came from a Java background. Thank you very much!

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• cutting a text file into multiple parts in emacs

  - by Gaurish Telang

  Hi I am using the GNU-Emacs-23 editor. I have this huge text file containing about 10,000 lines which I want to chop into multiple files. Using the mouse to select the required text to paste in another file is the really painful. Also this is prone to errors too. If I want to divide the text file according to the line numbers into say 4 file where first file:lines 1-2500 second file:lines 2500-5000 third file :lines 5000-7500 fourth file: lines: 7500-10000 how do I do this? At the very least, is there any efficient way to copy large regions of the file just by specifying line numbers

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• Framework Recommendation request: spring, struts, j2ee?

  - by Jack BeNimble

  The last time I looked at web applications, the consensus seemed to be Struts/J2EE. Now, it looks like Spring MVC/J2EE or Struts/J2EE are both viable solutions. Is this generally correct? Or is Spring MVC now the consensus choice over Struts? We have at least one guy who has worked with Struts before and wants to go with that. I'm more familiar with Struts as well, having reviewed in the past. Also, is J2EE still considered the viable solution for handling remote components? Or are there alternatives?

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• Is there a way to enable Unicode characters in all browsers on Windows XP?

  - by Daniel Pietzsch

  I'd like to use unicode symbols within my website (especially Dingbats). Is there any way to enable this inside all (or at least some) browsers in Windows XP, without having the user to adjust any of his settings? I use the HTML5 doctype with the charset configured to UTF-8: <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> </head> <body></body> </html> The browsers recognize the charset correctly (even IE7). But no special characters are displayed. I only see an empty square box. This is the case for all of the following browsers: IE7, Safari 4, Firefox 3.5, Chrome 4.1, Opera 10.51. So, is there any way to configure to enable all (or most) unicode characters for browsers running on Windows XP?

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• iPhone noob - different method types?

  - by codemonkey

  My apologies in advance for what is probably a really dumb question. I'm familiar (or at least getting familiar) with instance and class methods in objective-c, but have also seen method implementations that look like this: #import "Utilities.h" #import "CHAPPAppDelegate.h" #import "AppState.h" @implementation Utilities CHAPPAppDelegate* GetAppDelegate() { return (CHAPPAppDelegate *)[UIApplication sharedApplication].delegate; } AppState* GetAppState() { return [GetAppDelegate() appState]; } @end What are these? While I'm sure this is documented somewhere, I don't know what term to use in searching for an explanation of what's being done here. I like the syntax methods like this let me use when calling them, but I'm not sure exactly what I'm doing, what the implications are, how to send parameters to these types of functions, etc? To clarify how I ended up in this position, I started using these methods in a "utilities" class of mine after reading some online blog describing the author's preference for declaring these functions this way. Now I can't seem to track down a more detailed explanation of what exactly the differences are, etc.

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