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• What one feature available in other IDEs should be added to Xcode? [closed]

  - by Graham Lee

  This is inspired by Which features from other IDEs/editors you wish you have in Visual Studio? Xcode is a very different tool from Visual Studio, with a different feature set. While some of its capabilities are very mature (it had RAD UI layout in Interface Builder since before most other platforms), it lacks some features that e.g. Visual Studio or Eclipse provide. If you could request one feature to be added to Xcode, which would it be? How would that feature help you write better code, or write the same code faster?

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• Launching a URL from an OOB Silverlight Application

  So I'm working on this code browser mostly to help me with my fading memory. In the app I want to be able to launch a url. So I do my normal thing and put a line of code that looks like this:System.Windows.Browser.HtmlPage.Window.Navigate(new Uri(ThisURI), "_blank");I was agast when I realized that this didn't work, for that matter it didn't even blow... grr... but with a bit of research I found that the hyper link button worked so a ended up making a little class like this:public class MyHyperLink...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Open Source: Is Testing/Bug Reporting A Major Contribution?

  - by dsimcha

  When evaluating contributions to open source projects, does testing the code on various real-world inputs, reducing a large number of complicated bugs to small test cases and filing good bug reports count as a significant contribution? I've done this for several open-source projects (specifically D compilers) where I wanted to help out but the codebase was too complicated to learn my way around in the amount of spare time I have. I'm interested in both the perspective of the main developers (those that write the code and fix the bugs) and from the perspective of employers (in case I want to put it on my resume at some point).

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• Comparison between a value with static type Array and a possibly unrelated type Class

  - by Kaoru

  I got this error: Comparison between a value with static type Array and a possibly unrelated type Class. After i modify the class to many classes (before that, everything is on 1 class (all of the functions)), but after i move everything to many classes (all the functions is not on 1 class), that error appear. How to solve this? I am using AS3 and as3isolib Library. Here is the code after i modify the function: if (Constant.dude.y < Constant._numY) { if (Constant.dude.sprites != marioBackClass) { Constant.dude.sprites = [marioBackClass]; Constant.dudeDir = "Up"; } } Here is the code before i change the function to many classes: if (dude.y < ._numY) { if (dude.sprites.toString() != marioBackClass.toString()) { dude.sprites = [marioBackClass]; dudeDir = "Up"; } }

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• I am trying to delete a string from list then write it back to a file [closed]

  - by bradb

  def mang (grocerystock): mangchoice=int(input("What would you like to do? \n 1):Add a new product to the list? \n 2): Remove a product from the list? \n 3: Change the quantity of an item \n 4): Change the price of an item \n 5): View items and their quantity and price")) if mangchoice == 1: infile=open("grocery_stock.txt", 'a') name=input("Please enter the new product's name would you like to add:") quant=int(input("Please enter the new product's quantity")) price=float(input("Please enter the new product's price")) grocerystock[0]=name grocerystock[1]=quant grocerystock[2]=price gS=str(grocerystock) gs=gS.strip("[',']") infile.write(gs + '\n') if mangchoice == 2: namedelete=input("what item would you like to remove") a=open("grocery_stock.txt", 'r') data_list= a.readlines() a.close() print (data_list) del data_list[namedelete] b= open ("grocery_stock.txt", 'w') b.writelines(data_list) b.close() def intro(): choice=(int(input("Would you like to go to Managerial mode or Shop mode?(press 1 for Managerial and 2 for shop mode, to quit press 3)"))) if choice == 1: print ('lets go') mang(grocerystock) elif choice == 0 : print ('loser') grocerystock= ["","",""] intro() This is all the code i have written so far any ideas? The code that i am trying to delte is under if mangchoice == 2:

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• Keypress Left is called twice in Update when key is pressed only once

  - by Simran kaur

  I have a piece of code that is changing the position of player when left key is pressed. It is inside of Update() function. I know, Update is called multiple times, but since I have an ifstatement to check if left arrow is pressed, it should update only once. I have tested using print statement that once pressed, it gets called twice. Problem: Position updated twice when key is pressed only once. Below given is the structure of my code: void Update() { if (Input.GetKeyDown (KeyCode.LeftArrow)) { print ("PRESSEEEEEEEEEEEEEEEEEEDDDDDDDDDDDDDD"); } } I looked up on web and what was suggested id this: if (Event.current.type == EventType.KeyDown && Event.current.keyCode == KeyCode.LeftArrow) { print("pressed"); } But, It gives me an error that says: Object reference not set to instance of an object How can I fix this?

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• Building Interactive User Interfaces with Microsoft ASP. ...

  The ASP.NET AJAX UpdatePanel provides a quick and easy way to implement a snappier, AJAX-based user interface in an ASP.NET WebForm. In a nutshell, UpdatePanels allow page developers to refresh selected parts of the page (instead of refreshing the entire page). Typically, an UpdatePanel contains user interface elements that would normally trigger a full page postback - controls like Buttons or DropDownLists that have their <code>AutoPostBack</code> property set to True. Such controls, when placed inside an UpdatePanel, cause a partial page postback to occur. On a partial page postback only the contents of the UpdatePanel are refreshed, avoiding the "flash" of having the entire page reloaded. (For a more in-depth look at the UpdatePanel control, refer back to the

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• MonoDroid est disponible gratuitement en version test, la version finale du portage de Mono sur Android sera payante

  MonoDroid est disponible gratuitement, en version de test avant la mouture finale payante Mise à jour du 06.01.2011 par Katleen En mars dernier, nous vous parlions déjà du projet MonoDroid (voir news précédente), cet outil dont le but est de permettre aux développeurs de travailler sur .Net depuis Android (et sous d'autres systèmes pour ses autres versions) grâce à une totale disponibilité pour eux des APIs de l'OS de Google. Sa preview était très attendue. Figurez-vous que la voici, enfin. Elle permet d'utiliser les librairiesOpenGL et OpenTK et de compiler du code à la volée (en cas de code natif). Elle offre également un kit de développement complet en ligne de commande (compatible...

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• Teaching: How can you motivate students to comment?

  - by keflavich

  I remember when I was taught, "comments are the most important part of code." Or rather, when I was told that comments are the most important part of the code. I don't think I was convinced, and I still see common cases where programmers are not convinced of the necessity of good & thorough comments. I am certainly convinced myself at this point - trying to read, in particular, complex formulae that call functions that call other functions that I don't understand - but I don't know how to convey this to students.

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• Develop open-source library and get donations for it?

  - by Robottinosino

  I have a nice open-source library in mind to write. It would take a few months to develop properly and I would need to stop supporting myself though other projects. Could anybody share experiences and best-known-methods to get some sort of financial support through the Internet whilst developing free, open-source code? Or, phrased more directly: which systems apart from "PayPal" are in use by programmers to get donations for open-source code? Provide a list. Optionally, sort the list as if it were a recommendation in descending order of positive experiences made with each system. Optionally, share a tidbit of your success story getting this kind of financial support. Optionally: give an indication as to how much money can be made that way? (I heard Vim's author could support himself just with donations at some point?)

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• Getting a texture from a renderbuffer in OpenGL?

  - by Rushyo

  I've got a renderbuffer (DepthStencil) in an FBO and I need to get a texture from it. I can't have both a DepthComponent texture and a DepthStencil renderbuffer in the FBO, it seems, so I need some way to convert the renderbuffer to a DepthComponent texture after I'm done with it for use later down the pipeline. I've tried plenty of techniques to grab the depth component from the renderbuffer for weeks but I always come out with junk. All I want at the end is the same texture I'd get from an FBO if I wasn't using a renderbuffer. Can anyone post some comprehensive instructions or code that covers this seemingly simple operation? EDIT: Linky to an extract version of the code http://dl.dropbox.com/u/9279501/fbo.cs Screeny of the Depth of Field effect + FBO - without depth(!) http://i.stack.imgur.com/Hj9Oe.jpg Screeny without Depth of Field effect + FBO - depth working fine http://i.stack.imgur.com/boOm1.jpg

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• Why are slower programming languages considered worse than faster ones?

  - by Emanuil

  Here's how I see it. There's machine code and it's all that the computers needs in order to run something. The computers don't care about programming languages. It doesn't matter to them if the machine code comes from Perl, Python or PHP. Programming languages exist to serve programmers. Some programming languages run slower then others but that's not because there is something wrong with them. It's often because they do more things that otherwise programmers would do and by doing these things, they do better what they are supposed to do - serve programmers. So why are slower programming languages considered worse than faster ones?

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• What is the single most effective thing you did to improve your programming skills?

  - by Oded

  Looking back at my career and life as a programmer, there were plenty of different ways I improved my programming skills - reading code, writing code, reading books, listening to podcasts, watching screencasts and more. My question is: What is the most effective thing you have done that improved your programming skills? What would you recommend to others that want to improve? I do expect varied answers here and no single "one size fits all" answer - I would like to know what worked for different people. Edit: Wow - what great answers! Keep 'em coming people!!!

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• Why did visual programming never take off and what future paradigms might change that?

  - by Rego

  As the number of "visual" OS's such as Android, iOS and the promised Windows 8 are becoming more popular, it does not seem to me that we programmers have new ways to code using these new technologies, due to a possible lack in new visual programming languages paradigms. I've seen several discussions about incompatibilities between the current coding development environment, and the new OS approaches from Windows 8, Android and other tablets OS's. I mean, today if we have a new tablet, it's almost a requirement for coding, to have, for instance, an external keyboard (due it seems to me it's very difficult to program using the touch screen), exactly because the coding assistance is not conceived to "write" thousands of lines of code. So, how advanced should be the "new" visual programming languages paradigms? Which characteristics these new paradigms would be required?

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• Using 301 Redirects on new site when access to old site denied?

  - by Cape Cod Gunny

  I have a situation where I'm standing up a new website on a different web host. I've been denied access to the old site by the hosting company and the old site will most likely be turned off very soon. If my new site contains pages that are named slightly different how do I go about setting up 301 redirects on my new site? For example: www.oldsite.com\aboutus\ www.newsite.com\aboutus.html www.newsite.com\productx.html www.oldsite.com\productx\ Edit: Clarification: The old domain name is different from the new domain name. On my newsite do I just duplicate every page that existed on the old site and place redirect code inside those pages? What does the redirect code look like?

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• Harmful temptations in programming

  - by gaearon

  Just curious, what kinds of temptations in programming turned out to be really harmful in your projects? Like when you really feel the urge to do something and you believe it's going to benefit the project or else you just trick yourself into believing it is, and after a week you realize you haven't solved any real problems but instead created new ones or, in the best case, pleased your inner beast with no visible impact. Personally, I find it very hard to not refactor bad code. I work with a lot of bad legacy code, and it takes some deep breaths to not touch it when I have no tests to prove my refactoring doesn't not break anything. Another demon for me in user interface, I can literally spend hours changing UI layout just because I enjoy doing it. Sometimes I tell myself I'm working on usability, but the truth is just I love moving buttons around. What are your programming demons, and how do you avoid them?

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• Even More Steroids for JEditorPane

  - by Geertjan

  Got some help from Ralph today and now the JEditorPane is as I want it, e.g., code folds are now supported once you click in the JEditorPane, though there are still some side effects, since this is not how anyone anticipated NetBeans editor APIs being used. But, so far, the side effects (e.g., now the hyperlinks work, but they open a new JavaScript file when you click on one of them, instead of jumping within the JEditorPane itself) are not so terrible. Error checking is also done now, which wasn't there before, i.e., red underlines and error annotations in the right margin. And maybe it's my imagination, but the editor feels a lot snappier, e.g., in code completion, than before. I've checked in the changes, they're all in this file: http://java.net/projects/nb-api-samples/sources/api-samples/content/versions/7.3/misc/CMSBackOffice2/CMSBackOffice2-editor/src/main/java/com/mycompany/cmsbackoffice2editor/GeneralTab.java

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• Is there a way I can filter traffic by page-type based upon URL structure in Google-Analytics or Google Webmaster Tools?

  - by Felix

  I have a local business directory site. I'm trying to segment my incoming traffic by page-type such that I can find out what percentage of traffic is going to zip code pages exclusively and what percentage is going to city/state level pages. I basically want to filter by URL structure to find out what percentage of total traffic zip code pages account for. The reason for doing this is to find out if Google Tag Manager can help with this? Here are the two URL paths: http://www.example.com/ny/new-york/10011/ http://www.example.com/ny/new-york

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• Trying to Integrate Five9 and Apptivio [on hold]

  - by David Mitchell

  Five9 is a calling system application and Apptivio will be used to store client information for purchased products. Specifically what I need is an example code that will allow me to access Five9's CRM system using the access key and transfer a persons first and last name, for example, to Apptivio. The issue is I have never dealt with this type of system and I cannot find any information for it other than the Web2Campaign that was sent to me by Five9. Lets say this is the code from Five9 F9key=first_name&F9key=last_name&first_name=jon&last_name=smith Once this information is placed into Five9 I must update Apptivio with this information. I am lost as to how to send this information to Apptivio.

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• asp.net web apps: are OnServerValidate necessary with custom validators

  - by peroija

  I recently created a .net web app that used over 200 custom validators on one page. I wrote code for both ClientValidationFunction and OnServerValidate which results in a ton of repetitive code. My sql statements are parameterized, I have functions that pull data from input fields and validates them before passing to the sql statements or stored procedures. And the javascript validates the fields before the page submits. So essentially the data is clean and valid before it even hits the OnServerValidate and clean after it anyways due to the aforementioned steps. This makes me question, is OnServerValidate really needed when I validate on the clientside?

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• OpenGL ES 2.0 gluUnProject

  - by secheung

  I've spent more time than I should trying to get my ray picking program working. I'm pretty convinced my math is solid with respect to line plane intersection, but I believe the problem lies with the changing of the mouse screen touch into 3D world space. Heres my code: public void passTouchEvents(MotionEvent e){ int[] viewport = {0,0,viewportWidth,viewportHeight}; float x = e.getX(), y = viewportHeight - e.getY(); float[] pos1 = new float[4]; float[] pos2 = new float[4]; GLU.gluUnProject( x, y, 0.0f, mViewMatrix, 0, mProjectionMatrix, 0, viewport, 0, pos1, 0); GLU.gluUnProject( x, y, 1.0f, mViewMatrix, 0, mProjectionMatrix, 0, viewport, 0, pos2, 0); } Just as a reference I've tried transforming the coordinates 0,0,0 and got an offset. It would be appreciated if you would answer using OpenGL ES 2.0 code.

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• Good Blog Software

  - by Darren Young

  Hi, Inspired from an earlier question regarding starting a blog, I have decided to start one myself. I only have 4 months commercial experience in C#, but I am hoping to use my blog as a tool for further learning. Maybe such things as researching and writing about a different design pattern each week, a tricky aspect of C# that I don't yet fully understand, etc, etc. My question is, can somebody recommend any good blog sites suited for writing text and code? Is there any that allow the use of code tags or similar for formatting? Thanks,

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• Do search engines rank internal redirects negatively?

  - by siverd

  A client is in the late stages (code complete) of a website redesign and unfortunately hasn't implemented 301 redirects to point high traffic pages to the new URL's. As I understand it our only option at this point is to create redirects within the CMS. Our CMS allows us to do this: www.mysite.com/category/current-page.html will redirect to www.mysite.com/new-category-name/new-page.html The site now uses custom logic on our 404 page to check this list of redirects and if one exists forwards the user to the new-page.html I understand that using 301 redirects would be the correct way to maintain our page rank but I think that would require a code change which isn't possible. Question How will search engines respond to this? Will they wait until the redirect happens and allow us to keep our page rank (authority, trust, etc) or will they see the 404 page and down-rank us? Worst case...will they make our new-page.html start from a rank of "0"? Thanks for your help.

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• O'Reilly deal of the week to 23:59 PT 4/Sept/2012 - Master Regular Expressions

  - by TATWORTH

  O'Reilly at http://shop.oreilly.com/category/deals/regular-expressions-owo.do?code=WKRGEX are offering 50% off a range of e-books on mastering Regular Expressions "Take the guesswork out of using regular expressions. Learn powerful tips for matching, extracting, and transforming text as well as the gotchas to avoid. For one week only, SAVE 50% on these e-books and discover a whole new world of mastery over your code." I recommend Mastering Regular Expression to Dot Net developer as it covers the use of regular expressions across a number of environments, including Dot Net.

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• What's New in Visual Studio 2010 Languages

  - by Aamir Hasan

  What's New in Visual Basic 2010Describes new features in the Visual Basic language and Code Editor. The features include implicit line continuation, auto-implemented properties, collection initializers, and more.What's New in Visual C# 2010Describes new features in the C# language and Code Editor. The features include the dynamic type, named and optional arguments, enhanced Office programmability, and variance.What's New in Visual C++ 2010Describes new and revised features in Visual C++. The features include lambda expressions, the rvalue reference declarator, and the auto, decltype, and static_assert keywords.What's New in Visual F# 2010Describes the F# language, which is a language that supports functional programming for the .NET Framework.Reference:http://msdn.microsoft.com/en-us/library/bb386063%28VS.100%29.aspx

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