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• 1 ASPX Page, Multiple Master Pages

  - by csmith18119

  So recently I had an ASPX page that could be visited by two different user types.  User type A would use Master Page 1 and user type B would use Master Page 2.  So I put together a proof of concept to see if it was possible to change the MasterPage in code.  I found a great article on the Microsoft ASP.net website. Specifying the Master Page Programmatically (C#) by Scott Mitchell So I created a MasterPage call Alternate.Master to act as a generic place holder.  I also created a Master1.Master and a Master2.Master.  The ASPX page, Default.aspx will use this MasterPage.  It will also use the Page_PreInit event to programmatically set the MasterPage.  1: protected void Page_PreInit(object sender, EventArgs e) { 2: var useMasterPage = Request.QueryString["use"]; 3: if (useMasterPage == "1") 4: MasterPageFile = "~/Master1.Master"; 5: else if (useMasterPage == "2") 6: MasterPageFile = "~/Master2.Master"; 7: }   In my Default.aspx page I have the following links in the markup: 1: <p> 2: <asp:HyperLink runat="server" ID="cmdMaster1" NavigateUrl="~/Default.aspx?use=1" Text="Use Master Page 1" /> 3: </p> 4: <p> 5: <asp:HyperLink runat="server" ID="cmdMaster2" NavigateUrl="~/Default.aspx?use=2" Text="Use Master Page 2" /> 6: </p> So the basic idea is when a user clicks the HyperLink to use Master Page 1, the default.aspx.cs code behind will set the property MasterPageFile to use Master1.Master.  The same goes with the link to use Master Page 2.  It worked like a charm!  To see the actual code, feel free to download a copy here: Project Name: Skyhook.MultipleMasterPagesWeb http://skyhookprojectviewer.codeplex.com

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• Moving to New Machine... also upgrade to 64bit. What steps?

  - by Kendor

  I am about to move to a new Lenovo X201 from current X61. Current setup has separate \home, separate swap file, also separate \Data partition. Am currently running 10.04 32 bit. Am considering running 64 bit on new machine because I will now have 8 GB of RAM. And would like to also move to 10.10. Ideally I would like preserve as much of my current setup as possible... New machine has Win7 on it, but will blow that away, as I've made a clonezilla copy of it, and will use VirtualBox for when I need Windows. Can someone suggest a good step by step for me? I'm networked to a NAS and also have plenty of external USB storage in case I need intermediary steps. So do I set up new machine first with 64bit 10.10, with partition scheme I want? then rsnyc over \home from old machine (over write target home)? Do I need to upgrade the X61 first to 10.10?

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• Browser Item Caching and URLs

  - by Damon

  Ultimately you want the browser to cache things like Flash components, Silverlight XAP files, and images to avoid users having to download them each time they hit a page.  But during development it's very useful to NOT have things cached so you are always looking at the most up-to-date file.  You can always turn off caching on your browser, but if you use your browser for daily browsing then its not the greatest option.  To avoid caching we would always just slap a randomly generated GUID to the back of the URL of any items we didn't want to cache (e.g. http://someserver.com/images/image.png?15f073f5-45fc-47b2-993b-fbaa781b926d).  It worked well, but you had to remember to remove the random GUID when it went to production. However, on a GimmalSoft project we recently implemented someone showed me a better way that didn't need to be removed from production code - just slap the last modified date of the file on the end of the URL (or something generated from the modification date).  This was kind of genius approach because it gives you the best of both world.  If you modify the file, the browser goes out and gets the newest version.  If you don't modify the file, it has the cached copy.  Very helpful!  The only down side is that you do have to read the modification date from the file, which does technically take some time.

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• Browser Item Caching and URLs

  - by Damon Armstrong

  Ultimately you want the browser to cache things like Flash components, Silverlight XAP files, and images to avoid users having to download them each time they hit a page.  But during development it’s very useful to NOT have things cached so you are always looking at the most up-to-date file.  You can always turn off caching on your browser, but if you use your browser for daily browsing then its not the greatest option.  To avoid caching we would always just slap a randomly generated GUID to the back of the URL of any items we didn’t want to cache (e.g. http://someserver.com/images/image.png?15f073f5-45fc-47b2-993b-fbaa781b926d).  It worked well, but you had to remember to remove the random GUID when it went to production. However, on a GimmalSoft project we recently implemented someone showed me a better way that didn’t need to be removed from production code – just slap the last modified date of the file on the end of the URL (or something generated from the modification date).  This was kind of genius approach because it gives you the best of both world.  If you modify the file, the browser goes out and gets the newest version.  If you don’t modify the file, it has the cached copy.  Very helpful!  The only down side is that you do have to read the modification date from the file, which does technically take some time.

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• Performance Testing &ndash; Quick Reference Guide &ndash; Released up on CodePlex

  - by Shawn Cicoria

  Why performance test at all right?  Well, physics still plays a role in what we do.  Why not take a better look at your application – need help, well, the Rangers team just released the following to help: The following has both VS2008 & VS2010 content: http://vstt2008qrg.codeplex.com/ Visual Studio Performance Testing Quick Reference Guide (Version 2.0) The final released copy is here and ready for full time use. Please enjoy and post feedback on the discussion board. This document is a collection of items from public blog sites, Microsoft® internal discussion aliases (sanitized) and experiences from various Test Consultants in the Microsoft Services Labs. The idea is to provide quick reference points around various aspects of Microsoft Visual Studio® performance testing features that may not be covered in core documentation, or may not be easily understood. The different types of information cover: How does this feature work under the covers? How can I implement a workaround for this missing feature? This is a known bug and here is a fix or workaround. How do I troubleshoot issues I am having

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• Trouble with collision detection in XNA?

  - by Lewis Wilcock

  I'm trying to loop through an list of enemies (enemyList) and then any that have intersected the rectangle belonging to the box object (Which doesn't move), declare there IsAlive bool as false. Then another part of the code removes any enemies that have the IsAlive bool as false. The problem im having is getting access to the variable that holds the Rectangle (named boundingBox) of the enemy. When this is in a foreach loop it works fine, as the enemy class is declared within the foreach. However, there are issues in using the foreach as it removes more than one of the enemies at once (Usually at positions 0 and 2, 1 and 3, etc...). I was wondering the best way to declare the enemy class, without it actually creating new instances of the class? Heres the code I currently have: if (keyboardState.IsKeyDown(Keys.Q) && oldKeyState.IsKeyUp(Keys.Q)) { enemyList.Add(new enemy(textureList.ElementAt(randText), new Vector2(250, 250), graphics)); } //foreach (enemy enemy in enemyList) //{ for (int i = 0; i < enemyList.Count; i++) { if (***enemy.boundingBox***.Intersects(theDefence.boxRectangle)) { enemyList[i].IsDead = true; i++; } } //} for(int j = enemyList.Count - 1; j >= 0; j--) { if(enemyList[j].IsDead) enemyList.RemoveAt(j); } (The enemy.boundingBox is the variables I can't get access too). This is a complete copy of the code (Zipped) If it helps: https://www.dropbox.com/s/ih52k4e21g98j3k/Collision%20tests.rar I managed to find the issue. Changed enemy.boundingBox to enemyList[i].boundingBox. Collision works now! Thanks for any help!

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• Do there exist programming languages where a variable can truly know its own name?

  - by Job

  In PHP and Python one can iterate over the local variables and, if there is only once choice where the value matches, you could say that you know what the variable's name is, but this does not always work. Machine code does not have variable names. C compiles to assembly and does not have any native reflection capabilities, so it would not know it's name. (Edit: per Anton's answer the pre-processor can know the variable's name). Do there exist programming languages where a variable would know it's name? It gets tricky if you do something like b = a and b does not become a copy of a but a reference to the same place. EDIT: Why in the world would you want this? I can think of one example: error checking that can survive automatic refactoring. Consider this C# snippet: private void CheckEnumStr(string paramName, string paramValue) { if (paramName != "pony" && paramName != "horse") { string exceptionMessage = String.Format( "Unexpected value '{0}' of the parameter named '{1}'.", paramValue, paramName); throw new ArgumentException(exceptionMessage); } } ... CheckEnumStr("a", a); // Var 'a' does not know its name - this will not survive naive auto-refactoring There are other libraries provided by Microsoft and others that allow to check for errors (sorry the names have escaped me). I have seen one library which with the help of closures/lambdas can accomplish error checking that can survive refactoring, but it does not feel idiomatic. This would be one reason why I might want a language where a variable knows its name.

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• How to open-source a project whose git repository has copyrighted media in the history?

  - by phyzome

  I want to release an audio fingerprinting software project under a free license, but the repository contains copyrighted audio files. The test cases also currently use these files. How do I release the code to the public with maximum version history but without violating copyright? Details: The code is versioned under git. We will collapse it all back into one branch before release. There are 400 MB of audio data. Some files are free-licensed music from e.g. Jamendo, others are MP3s from our personal collections. No matter what approach we take, we'll always keep an immutable copy of the original repo, so as not to destroy project history. Main question: How to handle the public release? Expunge all history of the files in question from the git repository and release the altered repo. (v64 pointed out a way to do this.) Alternatively, take a snapshot of the current state of the code and don't even bother having a public history of the pre-release code. Side question: How could we have avoided this dilemma in the first place, given that sometimes private code or media is needed for the early stages of a project?

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• How to synchronize a whole Ubuntu?

  - by Avio

  I think that the time is ripe to have my whole Ubuntu synchronized just as my Dropbox folder is. Given that we are always talking about files and directories, what's the difference between my Documents folder and my /usr system directory? Almost none, except for their location. In fact, I think that there is just one big issue that prevents people to have their beloved installations mirrored wherever they go: symlinks. Dropbox, Google Drive, Ubuntu One, Sugarsync, Skydrive, none of these services support symlinking. This means that if I push a symlink in one of the synced folders, locally the symlink is kept as is, but remotely (in the cloud or on the other synced machines) the symlink is resolved to the actual file that was originally pointed to. This completely disrupts Linux installations, thus these services can't be used for this purpose. So the question is. Does anybody knows a way to achieve this? A whole Ubuntu, always synchronized with a remote running copy, but still locally stored on both disks? My best guess is that I could use NFS. But the main difference between Dropbox and NFS is that NFS is a remote filesystem that always forces to remotely access the files, while Dropbox pushes modifcations to local filesystems (and thus would perform better). I've also heard about NFS caching. Does anybody knows if this solution could approximate Dropbox in this sense? P.s. I know that /boot, /dev, /proc, /run, /tmp and device-specific mountpoints in /mnt and /media will have to be left out the sync mechanism. What I'm interested in is the principle. Can this be done with reasonable performance, having reasonable resources (e.g. ~ 1Mbps upload bandwidth and a public IP address)?

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• Which metric/list should be used to evaluate whole software development team?

  - by adt

  Title might be seem vague, so let me tell you a little bit history what i am trying to clarify question. I have been hired as a consultant for a corporate's small developement divison ( The company also owns a couple of software dev. companies) My ex manager runs a BI team, with reportes, analyts and developers. He asked me to evaluate overall design, software developement process and code quality . Here what i found, Lots of copy/paste code everywhere ( no reuse ) Even though they have everything TFS, VS Ultimate etc, No Build process , No Cruise Control.net / team city... No unit tests Web Pages with 3700 lines of code, Lots of huge functions ( which can be divided into smaller one's ) No naming convention both db and c# code No 3r party or open source project No IoC No Seperation Of Concerns No Code Quality Check ( NDepend or FxCope or nothing ) No Code Review No Communication within the team They claim they wrote an application framework ( 6 months 3 persons), but I would hardly call a framework ( of course no unit test, there are some but all commented out). Framework contains 14 projects but there are some projects with 1 file 20 lines of code . Honestly, what people are doing fixing bug all thr day( which will provide more bugs eventually), they are kind of isolated from community, some team members even dont know github or stackoverflow they probably went there with google but they dont know about it. So here is question, Is This list ok ? Or am i being picky? Since I dont have any grudge against them, I just want to be fair, honest and I would like to hear you suggestions, before I would submit this list. And since this list also will be review by software division's manager, I dont want any heart break or something like this. http://www.hanselman.com/altnetgeekcode/ For example I would love to such lists, i cant make references. Thanks in advance.

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• Is there any professional way to illustrate difference between 2 diagrams?

  - by lamwaiman1988

  I made a documented which is to describe the difference between the same logical structure from different version ( e.g Structure A from version 8 and Structure A from version 9 ). Luckily I've got the logical structure diagram from the 2 functional specification. I've managed to copy the image of each logical structure and paste them in MS Word and compare the 2 version side by side. I don't know if there is a standard way to illustrate the difference. I simply draw a cross over the removed logical member from the previous version and draw a rectangle around the new logical member of the next version. I know my way is kinda childish. I am wondering how to present them professionally. In addition, You won't believe this, but MS Word doesn't have a shape of CROSS, so I am actually using a multiplication sign that look like a giant monster: This is why I hate myself. Unlike 2 separated lines, this shape is easy to use, draw and resize. I am wondering if MS Word would care about a normal cross.

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• Which topics do I need to research to enable me to complete my self-assigned "Learning Project"?

  - by Anonymous -

  I want to continue learning C#. I've read parts of a few books recommended on here and the language is feeling more familiar by the day. I'd like to tackle a mid-sized personal project to take my expertise to the next level. What I'd like to do, is create an application that 'manages expenses', that runs on multiple machines on a LAN. So for example, say we have person1 and person2 on seperate machines running the application, when person1 enters an expense, it will appear on person2's (pretty UI) view of the expenses database and vice versa. What topics do I need to research to make this possible for me? I plan on learning WPF for the UI (though the steep learning curve (or so I'm told) has me a little anxious about that at this stage. With regards to the database, which database would you recommend I use? I don't want a 'server' for the database to run on, so do I need to use an embedded database that each client machine runs a copy of that updates to each other (upon startup/entering of expense on any machine etc)? What topics under networking should I be looking at? I haven't studied networking before in any language, so do I need to learn about sockets or?

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• Will Ubuntu work out on my mother's computer?

  - by PleaseStand

  My mother had an old Compaq desktop computer running Windows 98, which she used for occasional Web browsing and playing cards. Recently, a relative brought up a newer computer; it ran Windows XP. Unfortunately, the hard drive failed soon afterward, forcing me to reinstall the operating system. Not having the original Windows disc or product key led me to consider Ubuntu Linux. Will it work for mom? Is the hardware compatible? (Check the history of this question for the full specifications.) Would Ubuntu/Xubuntu suffice, or would I be better off buying a new copy of Windows? Is her card game (Hoyle Card Games 3) likely to run on Wine? I believe the minimum system requirement is Windows 95. Failing Wine compatibility, is running Windows 98 on VirtualBox an option on such an old computer? Are there any equally good card games for Linux? She plays mainly Bridge, Poker, and Solitaire. Is there any "Large Fonts" option for those with poor vision? Is it possible to use a serial mouse?

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• Is it okay to just add a page or two PHP page to add some functionality to a Drupal site?

  - by Zaemz

  I'm not familiar with Drupal, really. I can dig around the admin interface and navigate the directories and find the files that I need to just fine as well. What I'm really not familiar with is adding modules or extending modules. The site currently takes an order and sets up recurring payments through Ubercart and uses Authorize.net as a gateway. Right now, when a payment fails, a single e-mail gets sent out to the admin. We'd like to extend it to send an e-mail to the user and let them change their payment information through another page on the site. Authorize has a service called Silent Post URL that basically just posts a carbon copy in XML to whatever URL you give it. We'd like to accept that XML, deserialize it, parse the data, send a notice to the user and give them the page for updating their information. So, I guess it'll be two PHP pages. One for the XML API call from Authorize.net, and then one for the page for the users' to update their payment information. Could I just create two simple pages each handling their own tasks, or should I check out properly extending a module? If it's appropriate for me to write up the pages and not have to hook them into the module, what would be the best way to handle setting up what needs to get done? (The most experience I've had with extending a PHP site has been hacking away at someone else' poorly constructed, custom framework, so if anyone has any good resources perhaps on PHP best practices that they could share through a PM or a comment, I'd appreciate It) (Also, I'm still getting the hang of Stack Exchange, so if this isn't appropriate please let me know. I'll delete it.)

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• nautilus will not start, no right click menu, apps will not run due to 64bit libicui18n.so.48 overwritten with 32bit, ubuntu 12.04

  - by Dewb

  yeah so i broke my system trying to install support for 32bit apps. Somehow the 32bit set of libicu*.so.48 files replaced my 64bit files and now nothing works. I know what the problem is and how to fix it , what i need is some help. I need some kind soul running a 64bit install of Ubuntu 12.04 to simply go into their /usr/lib dir and copy the files that have the form libicu*.so.48* (8 of them i think, maybe 16 i dunno how many there is supposed to be since they were overwritten). Anyway if you could put those files in an archive, zip or tar preferred and then email/share the link. I was able to get these files installed but they're from the latest edition of fedora and while i can now use my computer , it's not that stable things don't start right smoothly every time like they used to .... and well its a simple ordeal to put things back the way they were if someone wouldn't mind helping out. also any help setting up the libraries related to 32bit apps would be great as well as i apparently screwed that up royally. Thanks for any help or advice

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• Full Text Search Strategy For My Website

  - by Hosea146

  I have a website that allows users to search for items in various categories. Each category is a separate area (page) of my website. For example, some categories might be cars, bikes, books etc. At the moment a user has to search for an item by going to the page (for example, cars) and searching for the car they want. I would like to allow the user to search for anything on my site, from my main home page. At the moment, each page (category) has its own set of tables, and I don't really want to turn Full Text Search on for each table (20+ of them) and search each table individually when a search is done. This is going to be slow and tedious. What I'm thinking of doing is creating a single table that will hold all searchable information for each category of item (when an item is saved in its respective table, I would copy all searchable information over to my 'Search' table). I would then turn Full Text Search on for that table, and search that table. Does this sound reasonable? Is there a better way? I've never used Full Text Search before, so this is new to me.

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• "bug" in C++11 text by Stroustrup?

  - by Astara

  I found an apparent contradiction in the c++ text having to do with the result of the c_str() function operating on std:strings (in my copy, the definition and contradiction are on p1040). First it defines the c_str() function as something that produces a 'C-style' (zero-terminated) string, but later it talks about how a C++ c_str value can have embed a 'C'-style, end-of-string terminators (i.e. NUL's) embedded in the string (that is defined by being NUL terminated). Um... does anyone else feel that this is a 'stretching' of the definition of a C-string beyond it's definition? I.e. I think what it means, is that if you were to look at the length() function as applied to the string, it will show a different end of string than using the C-definition of a z-string -- one that can contain any character except NUL, and is terminated by NUL. I likely don't have to worry about it in my of my programs, but it seems like a subtle distinction that makes a C++ c_str, not really a 'C'-string. Am I misunderstanding this issue? Thanks!

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• Thunderbird: "Could not initialize the application's security component" [closed]

  - by user unknown

  In Thunderbird, on startup, I get the error message: "Could not initialize the application's security component" The message continues to check permissions of the profile, and free disk space. df -h shows, that I have 19G free disk space. find . -not -perm -644 -not -perm -600 -ls shows: No file without rw-permissions for me. Before the error occured, thunderbird worked well. But I changed my main mail-account. I had two, let's call them A and B, and used mainly A, but now I wanted to deaktivate it, and receive and send automatically via the second. I Had problems moving the filters from inbox A to inbox B (missing copy-functionality). In the web, I found (mollazine) hints, to move key3.db, cert8.db and secmode.db out of the way, but it didn't work for me. Another hint was to uninstall Quickcam(?. sic!), but I don't have Quickcam. A third to recreate the profile, but I have subdirectories, filters, addressbook, groups - mails back to the year 2003. I don't want to risk the loss of data. The whole errormessage is: Could not initialize the application's security component. The most likely cause is problems with files in your application's profile directory. Please check that this directory has no read/write restrictions and your hard disk is not full or close to full. It is recommended that you exit the application and fix the problem. If you continue to use this session, you might see incorrect application behaviour when accessing security features. When I open the error-console, it is empty.

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• XML Parsing Error at 1:1544. Error 4: not well-formed (invalid token)

  - by Steve

  I have installed Joomla 1.5.22 on a new hosting account, which doesn't have a domain yet, so it's public URL is http://cp-013.micron21.com/~annimac/ A message saying: XML Parsing Error at 1:1544. Error 4: not well-formed (invalid token). The source code for this message is: <dl id="system-message"> <dt class="error">Error</dt> <dd class="error message fade"> <ul> <li>XML Parsing Error at 1:1544. Error 4: not well-formed (invalid token)</li> </ul> </dd> </dl> There is nothing in /logs to indicate what the problem is. I have uploaded the following folders from a freshly unzipped copy of Joomla 1.5.22: administrator components includes language\en-GB libraries modules plugins templates\ja_purity xmlrpc and the issue remains. I have no custom or additional plugins, modules, or components installed. If I change templates, the problem remains. What is the problem?

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• Are these 2 strings equal?

  - by Shawn Cicoria

  I spent way too many hours on this one. I was going through full configuration of ADFS v2 with WCF active client scenarios and using self generated certificates, had all things lined up perfectly.  Using the certificate snap in I just copied the thumbprint into the IdentityModel section (trusted issuers) in my service config.  var one = "?ecb8fd950978d94ae21d4f073227fdc2718bdb96"; var two = "ecb8fd950978d94ae21d4f073227fdc2718bdb96"; What ended up is in the first, there’s a buried nonprintable series of characters (‎ – or E2 80 8E in 0x format). 2 lessons, turn on tracing sooner and don’t trust Copy & Paste – all the time.  I ended up creating a quick Issuer Name Registry class so I could debug and finally saw the issue. namespace MyService { public class IssuerValidator : ConfigurationBasedIssuerNameRegistry { public IssuerValidator() :base() { } public IssuerValidator(XmlNodeList xml) : base(xml) { } public override string GetIssuerName(System.IdentityModel.Tokens.SecurityToken securityToken) { X509SecurityToken token = securityToken as X509SecurityToken; if (token == null) { return "who cares"; } else { return token.Certificate.Thumbprint; } } } I do have a utility I wrote to navigate the cert store and emit the thumbprint to avoid these issues, I just didn’t have it available on my machine at the time.

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• Separate update and render

  - by NSAddict

  I'm programming a simple Snake in Java. I'm a complete newbie when it comes to Java and Game Developing, so please bear with me ;) Until now, I have been using a UI thread, as well as a update-thread. The update thread just set the position, set the GameObjects, and so on. I didn't think much of concurrency, but now I've come to a problem. I wanted to modify the ArrayList<GameObject>, but it throws a java.util.ConcurrentModificationException. With a little research I found out that this happens because the two threads are trying to access the variables at the same time. But I didn't really find a way to prevent this. I thought about copying the array and swapping them out when the rendering is finished, but I would have to deep-copy them, which isn't really the best solution in my opinion. It probably eats up more CPU resources than a single-threaded game. Are there any other ways to prevent this? Thanks a lot for your help!

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• which technology or strategy a new / inexperienced freelancer should use to earn profit? [closed]

  - by w3softdev

  this question has re-posted by me in the following group if you find suitable to answer this question then please click on the link attached here or copy paste this in your browser.. http://answers.onstartups.com/questions/32767/which-technology-or-strategy-a-new-inexperienced-freelancer-should-use-to-earn Well it is my very first Question in this section and i really don't know whether my query relate to this section or not. anyway i have some awkward query. (however, it is like a bit story but i guess it is necessary to know some background knowledge of me.) Actually I m fresh recent grad who has just started his freelancing work. In due course i have got a project to develop website for a middle scale business (travel agent). As I don't trust on my client whether he will pay to me in full or not after the completion of website, i want to use cheaper and efficient technology so that how much he would pay I could got at least few units of % of profit. As i have learnt ASP.NET and when I inquired about the expense in Hosting of my website i got the recommendation to develop my web app using the combination PHP and MYSQL instead the asp.net + ms sql. And the problem is I don't know PHP. should I learn PHP and or work in what i m comfortable with and should try to cover whole deserved money. (as it is my first project so i m also advised that i may got some loss in starting but contrary to this i don't want to go in loss and want to earn appropriate profit)

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• After tarball restore my PC (tar xvfpz backup.tgz -C /), my sound card and network are not working. How to detect?

  - by axton hunger

  1 . I have a old laptop I installed Ubuntu 12.04 on. (It was ACER) 2 . I booted into single user mode and backed it up via cd / sudo -i tar cvpzf backup.tgz --exclude=/proc --exclude=/dev --exclude=/lost+found --exclude=/backup.tgz --exclude=/mnt --exclude=/sys / 3 . I installed a fresh copy of Ubuntu 1204 on my new laptop (It is Dell) 4 . I boot into single user mode 5 . I backup the existing /boot directory 6 . I untar my backup to restore on to the Dell sudo tar xvfpz backup.tgz -C / 7 . I restore the previous /boot directory again 8 . I boot it up, and my profile and settings are loaded ok but, Ubuntu shows that there is no Sound Card.. I cannot use unity to drag and change volume. I noticed that the network card also doesnt work. ** How do you make ubuntu recognize changed hardware, if the hardware is already configured for a different laptop? Does anyone know?**

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• unittest import error with virtualenv + google-app-engine-django

  - by Ray Yun

  I'm working with google-app-engine-django + zipped django. Just running "python manage.py test" succeeded without error. But with virtualenv, test was failed with "import unittest error". same error with Django 1.1. - OSX 10.5.6 - google-app-engine-django (r101 via svn) : r100 was failed with launcher 1.3.0 - GoogleAppLauncher 1.3.0 - Django 1.1 & 1.1.1 (zipped) : both failed - virtualenv 1.4.5 - virtualenvwrapper 1.24 Error Message: (django_appengine)Reiot:warclouds Reiot$ python manage.py test WARNING:root:Could not read datastore data from /var/folders/UZ/UZ1vQeLFH2ShHk4kIiLcFk+++TI/-Tmp-/django_google-app-engine-django.datastore INFO:root:zipimporter('/Volumes/data/Documents/warclouds/django.zip', 'django/core/serializers/') .WARNING:root:Can't open zipfile /Users/Reiot/.virtualenvs/django_appengine/lib/python2.5/site-packages/setuptools-0.6c11-py2.5.egg: IOError: [Errno 13] file not accessible: '/Users/Reiot/.virtualenvs/django_appengine/lib/python2.5/site-packages/setuptools-0.6c11-py2.5.egg' WARNING:root:Can't open zipfile /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/setuptools-0.6c9-py2.5.egg: IOError: [Errno 13] file not accessible: '/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/setuptools-0.6c9-py2.5.egg' ERROR:root:Exception encountered handling request Traceback (most recent call last): File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3177, in _HandleRequest self._Dispatch(dispatcher, self.rfile, outfile, env_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3120, in _Dispatch base_env_dict=env_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 515, in Dispatch base_env_dict=base_env_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2379, in Dispatch self._module_dict) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2289, in ExecuteCGI reset_modules = exec_script(handler_path, cgi_path, hook) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 2185, in ExecuteOrImportScript exec module_code in script_module.__dict__ File "/Volumes/data/Documents/warclouds/main.py", line 28, in <module> from appengine_django import InstallAppengineHelperForDjango File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1264, in Decorate return func(self, *args, **kwargs) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1914, in load_module return self.FindAndLoadModule(submodule, fullname, search_path) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1264, in Decorate return func(self, *args, **kwargs) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1816, in FindAndLoadModule description) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1264, in Decorate return func(self, *args, **kwargs) File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 1767, in LoadModuleRestricted description) File "/Volumes/data/Documents/warclouds/appengine_django/__init__.py", line 44, in <module> import unittest ImportError: No module named unittest INFO:root:"GET / HTTP/1.1" 500 - INFO:root:zipimporter('/Users/Reiot/.virtualenvs/django_appengine/lib/python2.5/site-packages/setuptools-0.6c11-py2.5.egg', '') INFO:root:zipimporter('/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/setuptools-0.6c9-py2.5.egg', '') F........................................................... ====================================================================== FAIL: a request to the default page works in the dev_appserver ---------------------------------------------------------------------- Traceback (most recent call last): File "/Volumes/data/Documents/warclouds/appengine_django/tests/integration_test.py", line 176, in testBasic self.assertEquals(rv.status_code, 200) AssertionError: 500 != 200 I also tried with console import but it was ok. > which python /Users/Reiot/.virtualenvs/django_appengine/bin/python > python >>> import unittest Here is my environments: $ mkvirtualenv --no-site-packages no-django $ mkvirtualenv --no-site-packages django-1.1 $ mkvirtualenv --no-site-packages django-1.1.1 (django-1.1)$ easy_install Django-1.1.tar (django-1.1.1)$ easy_install Django-1.1.1.tar $ mkdir google-app-engine-django-svn $ cp -r google-app-engine-django-svn google-app-engine-django-svn-django-1.1 // copy appropriate django.zip $ cp -r google-app-engine-django-svn google-app-engine-django-svn-django-1.1.1 // copy appropriate django.zip

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• iPhone Serialization problem

  - by Jenicek

  Hi, I need to save my own created class to file, I found on the internet, that good approach is to use NSKeyedArchiver and NSKeyedUnarchiver My class definition looks like this: @interface Game : NSObject <NSCoding> { NSMutableString *strCompleteWord; NSMutableString *strWordToGuess; NSMutableArray *arGuessedLetters; //This array stores characters NSMutableArray *arGuessedLettersPos; //This array stores CGRects NSInteger iScore; NSInteger iLives; NSInteger iRocksFallen; BOOL bGameCompleted; BOOL bGameOver; } I've implemented methods initWithCoder: and encodeWithCoder: this way: - (id)initWithCoder:(NSCoder *)coder { if([coder allowsKeyedCoding]) { strCompleteWord = [[coder decodeObjectForKey:@"CompletedWord"] copy]; strWordToGuess = [[coder decodeObjectForKey:@"WordToGuess"] copy]; arGuessedLetters = [[coder decodeObjectForKey:@"GuessedLetters"] retain]; // arGuessedLettersPos = [[coder decodeObjectForKey:@"GuessedLettersPos"] retain]; iScore = [coder decodeIntegerForKey:@"Score"]; iLives = [coder decodeIntegerForKey:@"Lives"]; iRocksFallen = [coder decodeIntegerForKey:@"RocksFallen"]; bGameCompleted = [coder decodeBoolForKey:@"GameCompleted"]; bGameOver = [coder decodeBoolForKey:@"GameOver"]; } else { strCompleteWord = [[coder decodeObject] retain]; strWordToGuess = [[coder decodeObject] retain]; arGuessedLetters = [[coder decodeObject] retain]; // arGuessedLettersPos = [[coder decodeObject] retain]; [coder decodeValueOfObjCType:@encode(NSInteger) at:&iScore]; [coder decodeValueOfObjCType:@encode(NSInteger) at:&iLives]; [coder decodeValueOfObjCType:@encode(NSInteger) at:&iRocksFallen]; [coder decodeValueOfObjCType:@encode(BOOL) at:&bGameCompleted]; [coder decodeValueOfObjCType:@encode(BOOL) at:&bGameOver]; } return self; } - (void)encodeWithCoder:(NSCoder *)coder { if([coder allowsKeyedCoding]) { [coder encodeObject:strCompleteWord forKey:@"CompleteWord"]; [coder encodeObject:strWordToGuess forKey:@"WordToGuess"]; [coder encodeObject:arGuessedLetters forKey:@"GuessedLetters"]; //[coder encodeObject:arGuessedLettersPos forKey:@"GuessedLettersPos"]; [coder encodeInteger:iScore forKey:@"Score"]; [coder encodeInteger:iLives forKey:@"Lives"]; [coder encodeInteger:iRocksFallen forKey:@"RocksFallen"]; [coder encodeBool:bGameCompleted forKey:@"GameCompleted"]; [coder encodeBool:bGameOver forKey:@"GameOver"]; } else { [coder encodeObject:strCompleteWord]; [coder encodeObject:strWordToGuess]; [coder encodeObject:arGuessedLetters]; //[coder encodeObject:arGuessedLettersPos]; [coder encodeValueOfObjCType:@encode(NSInteger) at:&iScore]; [coder encodeValueOfObjCType:@encode(NSInteger) at:&iLives]; [coder encodeValueOfObjCType:@encode(NSInteger) at:&iRocksFallen]; [coder encodeValueOfObjCType:@encode(BOOL) at:&bGameCompleted]; [coder encodeValueOfObjCType:@encode(BOOL) at:&bGameOver]; } } And I use these methods to archive and unarchive data: [NSKeyedArchiver archiveRootObject:currentGame toFile:strPath]; Game *currentGame = [NSKeyedUnarchiver unarchiveObjectWithFile:strPath]; I have two problems. 1) As you can see, lines with arGuessedLettersPos is commented, it's because every time I try to encode this array, error comes up(this archiver cannot encode structs), and this array is used for storing CGRect structs. I've seen solution on the internet. The thing is, that every CGRect in the array is converted to an NSString (using NSStringFromCGRect()) and then saved. Is it a good approach? 2)This is bigger problem for me. Even if I comment this line and then run the code successfully, then save(archive) the data and then try to load (unarchive) them, no data is loaded. There aren't any error but currentGame object does not have data that should be loaded. Could you please give me some advice? This is first time I'm using archivers and unarchivers. Thanks a lot for every reply.

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