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  • What is the order of execution in ASP.NET MVC Controller?

    - by Xinxua
    Say I have a controller called "HomeController" which inherits from Mvc.Controller. Also say I have written the constructor of the controller and some filters for some actions. Public Class ClientController Inherits System.Web.Mvc.Controller Public Sub New() ''Some code End Sub <SomeActionFilter()> _ Function Index() As ActionResult Return View() End Function End Class My questions are : What is the order of execution of constructor, filter, action? Can I have a filter for the Constructor, if I do not want to run the code in it by checking for some conditions?

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  • Best tools for collaborating with small number of people

    - by Mark Szymanski
    Hi, I am collaborating with someone on a project and currently use Skype for collaboration. I like it because we can be on a call to say things that are hard to say by typing out. We can share our screens so we can help with code writing. And we can use the text chat to copy-paste code between each other. We also use Subversion for version control. I just wanted to know what other people used for collaborating with others so I could see whats out there to use. Thanks!

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  • PerlIO in Windows PowerShell and CMD.exe

    - by Evan Carroll
    Apparently, a Perl script I have results in two different output files depending on if I run it under Windows PowerShell, or cmd.exe. The script can be found at the bottom of this question. The file handle is opened with IO::File, I believe that PerlIO is doing some screwy stuff. It seems as if under cmd.exe the encoding chosen is much more compact encoding (4.09 KB), as compared to PowerShell which generates a file nearly twice the size (8.19 KB). This script takes a shell script and generates a Windows batch file. It seems like the one generated under cmd.exe is just regular ASCII (1 byte character), while the other one appears to be UTF-16 (first two bytes FF FE) Can someone verify and explain why PerlIO works differently under Windows Powershell than cmd.exe? Also, how do I explicitly get an ASCII-magic PerlIO filehandle using IO::File? Currently, only the file generated with cmd.exe is executable. The UTF-16 .bat (I think that's the encoding) is not executable by either PowerShell or cmd.exe. BTW, we're using Perl 5.12.1 for MSWin32 #!/usr/bin/env perl use strict; use warnings; use File::Spec; use IO::File; use IO::Dir; use feature ':5.10'; my $bash_ftp_script = File::Spec->catfile( 'bin', 'dm-ftp-push' ); my $fh = IO::File->new( $bash_ftp_script, 'r' ) or die $!; my @lines = grep $_ !~ /^#.*/, <$fh>; my $file = join '', @lines; $file =~ s/ \\\n/ /gm; $file =~ tr/'\t/"/d; $file =~ s/ +/ /g; $file =~ s/\b"|"\b/"/g; my @singleLnFile = grep /ncftp|echo/, split $/, $file; s/\$PWD\///g for @singleLnFile; my $dh = IO::Dir->new( '.' ); my @files = grep /\.pl$/, $dh->read; say 'echo off'; say "perl $_" for @files; say for @singleLnFile; 1;

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  • Strategy Design Pattern -- *dynamic* !!!

    - by alexeypro
    My application will have different strategies for my objects. What's the best way of implementing that? I would really love the case when we can make strategy classes implementation dynamically loaded from, say, some relational database. Not sure how do that better, though. What's the best approach? Idea is that say we want to apply to object MyObj strategy Strategy123 then we just load from database by ID 123 the object, deserialize it, get the Strategy class, and use it with MyObj. The maintenance while sounds easier from the first look can be a pain in the long run if Strategy interfaces changes, etc. What can I do also? I want to find solution when I should be keeping Strategy classes in codebase -- just for the sake that I don't need code change and re-deployment of the application if my Strategy changes, or I add new strategy. Please advise!

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  • fastercsv parsing to int or other into ActiveRecord

    - by Schroedinger
    I'm currently importing a CSV into an activerecord element but can't choose to parse the elements as say ints or decimals on a case by case basis using fastercsv. I can either choose to parse everything as an int or the other, or all as strings. I need to parse some columns as ints, some as decimals and some as strings. Otherwise, is there a way after I've parsed everything as strings to convert and update individual elements in the activerecord to the new form? Say parse values in as strings then convert certain values to ints, others to decs, etc?

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  • LWJGL texture bleeding fix won't work

    - by user1990950
    I tried a lot of things to fix texture bleeding, but nothing works. I don't want to add a transparent border around my textures, because I already got too many and it would take too much time and I can't do it with code because I'm loading textures with slick. My textures are seperate textures and they seem to wrap on the other side (texture bleeding). Here are the textures that are "bleeding": The head, body, arm and leg are seperate textures. Here's the code I'm using to draw a texture: public static void drawTextureN(Texture texture, Vector2f position, Vector2f translation, Vector2f origin,Vector2f scale,float rotation, Color color, FlipState flipState) { texture.setTextureFilter(GL11.GL_NEAREST); color.bind(); texture.bind(); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_S, GL12.GL_CLAMP_TO_EDGE); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_WRAP_T, GL12.GL_CLAMP_TO_EDGE); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MAG_FILTER, GL11.GL_NEAREST); GL11.glTexParameteri(GL11.GL_TEXTURE_2D, GL11.GL_TEXTURE_MIN_FILTER, GL11.GL_NEAREST); GL11.glTranslatef((int)position.x, (int)position.y, 0); GL11.glTranslatef(-(int)translation.x, -(int)translation.y, 0); GL11.glRotated(rotation, 0f, 0f, 1f); GL11.glScalef(scale.x, scale.y, 1); GL11.glTranslatef(-(int)origin.x, -(int)origin.y, 0); float pixelCorrection = 0f; GL11.glBegin(GL11.GL_QUADS); GL11.glTexCoord2f(0,0); GL11.glVertex2f(0,0); GL11.glTexCoord2f(1,0); GL11.glVertex2f(texture.getTextureWidth(),0); GL11.glTexCoord2f(1,1); GL11.glVertex2f(texture.getTextureWidth(),texture.getTextureHeight()); GL11.glTexCoord2f(0,1); GL11.glVertex2f(0,texture.getTextureHeight()); GL11.glEnd(); GL11.glLoadIdentity(); } I tried a half pixel correction but it didn't make any sense because GL12.GL_CLAMP_TO_EDGE. I set pixelCorrection to 0, but it still wont work.

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  • How can I make a fixed hex editor?

    - by Kevin
    So. Let's say I were to make a hex editor to edit... oh... let's say a .DLL file. How can I edit a .DLL file's hex by using C# or C++? And for the "fixed part", I want to make it so that I can browse from the program for a specific .DLL, have some pre-coded buttons on the programmed file, and when the button is pressed, it will automatically execute the requested action, meaning the button has been pre-coded to know what to look for in the .DLL and what to change it to. Can anyone help me get started on this?

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  • winusb formatting and installation error, lost data storage on 32gb flash drive

    - by Cary Felton
    i recently purchased a pny brand 32gb usb drive to use for configuring a dual boot on my computer, and for hdd files backup. i also recently installed zorin os 6.1 as my main os, and then downloaded winusb for linux, and set it to install the iso for windows 8 release preview as the activation code is still good untill jan.2013, and there was an error on the installation. i rebooted the computer, plugged in the usb drive, and i went from 32gb usable space to somehow having a partitioned drive (mounted as two separate drives) one being 3.7gb, and the other being i believe 25gb or so... i then formatted the drive with gparted back to fat32, and it still read as a windows usb with the installation files on it still? so then i took my usb drive to my library which runs windows 8, i installed bootice, and completely reformatted my usb drive, and somehow it is usable, but still not perfect. it reads i only have 29.9gb usable space... i have already thought of the non usable area, and that doesnt account for this error as when i first bought the drive and plugged it in on linux, it read total drive space was 32.2 and exactly 32 was usable. somehow i am short by 2gb of space which is very critical for what i am doing. i love linux, i only needed windows for bluray playback with daplayer as it wont work well in wine, but if i keep losing space on my usb drives im afraid ill have to switch back. any help would be appreciated as i already visited pny's site, and they have no support for this issue, and im not that fond of partitions, file systems, or formatting.

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  • When Debugging in Xcode what does "out of scope" mean?

    - by Buffernet
    I'm in xcode debugging my iphone application. when i get to a break point and I roll over my object and properties of that object say "out of scope" instead of their respective values. Here's what I do: I have inited a view with nib name (initwithnibname). Then set the property of that view to the object that I want. I have placed the breakpoint in the viewwillappear method. I rollover my reference to the variable that was is my property. All properties in the object say "out of scope" Does anyone know why this is happening?

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  • Cases of companies taking IP rights of your own personal projects developed outside company time

    - by GSS
    Hi, I have heard of cases where a developer working for a company is also making his own personal projects in his own time, using his own equipment yet the company he works for tries to claim ownership for the project. I really find this annoying, and bang out of order. It should also be illegal. I am in this position (work for a company and working on my own systems - from small class libraries used to practise what I learn in my exam revision to a large commercial-scale system). While I don't know if the company will try to take ownership, all I know is they say they do not want a conflict of interest. Fair enough, my system is developed in my own time using my own equipment. They also say that work time should be for work only, which it is. Funny thing that as work is so boring, easy and slow that I have plenty of free time, which I wish I could spend on something productive - said system. The problem is, my company does not take hiring technical talent seriously. This is my first job, I am a junior coder (but my status/position doesn't really reflect what I can do), but I am the only developer. Likewise with the guy who controls Windows Server. As the contract does not say anything about taking ownership, I would assume they would. They would try to milk my success (I've made a good impression so I am sure they would). How can this be allowed? Are there any examples of this happening to any fellow Stacker here? It really makes my blood boil. What I find funny is that my company hardly has the expertise and resources to even be able to successfully run a project of my size. What I do at work is an ASP.NET application consisting of five pages, and even then there are flaws in the project. If I told them that they would also have to take responsibility for flaws in the project, then they would think twice! It's exactly because of this I save the best code for myself and at work I write rubbish code full of code smells. The company don't really care about error handling, as long as the business functionality works (ie a scheduled email sends, but there is no error handling). They'd think twice when they see the embarassment and business cost of a YSOD...

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  • ASP.NET variable scope

    - by c11ada
    hey all, im really new to ASP.Net and still havnt got my head round most of the concepts, im really having problems with variable, when creating a desktop application, any variable created in code for example int n = 10; this variable will be there until the program is running right. but in asp iv created variables which are supposed to last until the user gets of that page, so for example say i have a page which takes the users value ( call this variable n say the user type in 10) and every time the user presses the next button the code add 10 to this value. so the first time the user presses the next button n= n + 10; what i have found is no matter how many times i press the next button n will always equal 20, because the previous value is not saved !! these values are populated the first time the user enters that page, once the user clicks the next button the content of these values disappear! how can stop this from happening ?? hope this makes sense !! thanks

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  • DDD - Validation of unique constraint

    - by W3Max
    In DDD you should never let your entities enter an invalid state. That being said, how do you handle the validation of a unique constraint? The creation of an entity is not a real problem. But let say you have an entity that must have a unique name and there is a thousand instances of this entity type - they are not in memory but stored in a database. Now let say you want to rename an instance. You can't just use a setter... the object could enter an invalid state - you have to validate against the database. How do you handle this scenario in a web environment?

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  • Best way to fetch data from a single database table with multiple threads?

    - by Ravi Bhatt
    Hi, we have a system where we collect data every second on user activity on multiple web sites. we dump that data into a database X (say MS SQL Server). we now need to fetch data from this single table from daatbase X and insert into database Y (say mySql). we want to fetch time based data from database X through multiple threads so that we fetch as fast as we can. Once fetched and stored in database Y, we will delete data from database X. Are there any best practices on this sort of design? any specific things to take care on table design like sharing or something? Are there any other things that we need to take care to make sure we fetch it as fast as we can from threads running on multiple machines? Thanks in advance! Ravi

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  • Will the following code be Garbage Collected before the class "dies"?

    - by devoured elysium
    Let's say we have the following code in a class: //class code TextBox t = new TextBox(); ListBox l = new ListBox(); We have then two possible situations: In the first, we declare qem1 as a class variable(or attribute, as they call it in the Java World): //class variable QuickEntryMediator qem1 = new QuickEntryMediator(t,l); In the second, we declare it inside a method: //method variable QuickEntryMediator qem2 = new QuickEntryMediator(t,l); So, I'd say qem1 would never be Garbage Collected before the class goes out of scope while in the qem2 might be Garbage Collected at any time after the method in which it resides dies. Is this true? I am looking for answers for both C#(.net) and Java, as am I am not sure both GC's work in the same fashion! Thanks

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  • ubuntu 12.10 installation failure

    - by Eidelmaim
    Here i am asking this question again because someone deemed it a duplicate to another topic which i over looked and NOTHING AT ALL in that topic pertained to my problem. If your going to close a topic believing it is a duplicate at least do somke reasearch into WHY you think its a duplicate and provide a like to a better source. How do i get past this installation username and password issue? I downloaded ubuntu 12.10 directly from Ubuntu.com and created a bootable USB with linuxlive. after loading the boot drive and ubuntu begins, it goes directly from the purple ubuntu startup screen directly to a black DOS like prompt asking for a ubuntu login. this is COMPLETLY before any installation -begins. i need some help with this. FYI : this is what it is saying after it goes to the login area in the DOS (Full black screen) like screen. Ubuntu 12.10 ubuntu tty1 ubuntu login: now i will provide a few images of the problem i am having. and because i DONT HAVE ANY OS on the computer BECAUSE ubuntu WONT go PAST this... i have to snap these pictuires with a cell phone and upload on another PC. these links are in chronological order from time of pressing power button to time i am presented with log in screen : image 1 image 2 can only post 2 links in messages... will post additional links in comments So, again... how do i get past this ? this is entireley before ubuntu is installed on my system. my PC specs... Homebuilt computer: Motherboard is a Asus Sabertooth x58 with a intel core i7 processor. Mushkin memory @ 12gbs. 4ea. Seagate 150gb hard drives. nvidia GTX 260 graphics card. i initially attempted to install to raid 5. failed. i broke down the raid and attempted to install to a single drive with all other drives disconnected from the PC. again, thanks in advanced for any assistance.

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  • XNA C# Platformer - physics engine or tile based?

    - by Hugh
    I would like to get some opinions on whether i should develop my game using a physics engine (farseer physics seems to be the best option) or follow the traditional tile-based method. Quick background: - its a college project, my first game, but have 4 years academic programming experience - Just want a basic platformer with a few levels, nothing fancy - want a shooting mechanic, run and gun, just like contra or metal slug for example - possibly some simple puzzles I have made a basic prototype with farseer, the level is hardcoded with collisions and not really tiled, more like big full-screen sized tiles, with collision bodies drawn manually along the ground and walls etc. My main problem is i want a simple retro feel to the jumping and physics but because its a physics simulation engine its going to be realistic, whereas typical in air controllable physics for platformers arent realistic. I have to make a box with wheel body fixture under it to have this effect and its glitchy and doesnt feel right. I chose to use a physics engine because i tried the tile method initially and found it very hard to understand, the engine took care of alot things to save me time, mainly being able to do slopes easily was nice and the freedom to draw collision bounds wherever i liked, rather then restricted to a grid, which gave me more freedom for art design also. In conclusion i don't know which method to pick, i want to use a method which will be the most straight forward way to implement and wont give me a headache later on, preferably a method which has an abundance of tutorials and resources so i dont get "stuck" doing something which has been done a million times before! Let me know i haven't provided enough information for you to help me! Thanks in advance, Hugh.

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  • How does opendir work in Perl 6?

    - by sid_com
    Hello! Can someone tell me, why the "opendir" doesn't work? #!/usr/bin/env perl6 use v6; my $file = 'Dokumente/test_file'; if ( my $fh = open $file, :r ) { for $fh.lines -> $line { say $line; } } else { say "Could not open '$file'"; } my $dir = 'Dokumente'; my $dh = opendir $dir err die "Could not open $dir: $!"; Output: Hello, World! Line 2. Last line. Could not find non-existent sub &opendir current instr.: '_block14' pc 29 (EVAL_1:0) called from Sub '!UNIT_START' pc 1163 (src/glue/run.pir:20) called from Sub 'perl6;PCT;HLLCompiler;eval' pc -1 ((unknown file):-1) called from Sub 'perl6;PCT;HLLCompiler;evalfiles' pc 1303 (compilers/pct/src/PCT/HLLCompiler.pir:707) called from Sub 'perl6;PCT;HLLCompiler;command_line' pc 1489 (compilers/pct/src/PCT/HLLCompiler.pir:794) called from Sub 'perl6;Perl6;Compiler;main' pc -1 ((unknown file):-1)

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  • Adding LDAP OU using Net::LDAP

    - by lupindeterd
    What is the correct syntax of adding an OU using Net::LDAP, I tried the following: #!/usr/bin/perl -w use 5.10.1; use strict; use Net::LDAP; use Data::Dumper; my $ldap = Net::LDAP->new("192.168.183.2") or die "$@"; my $mesg = $ldap->bind( "cn=admin,dc=lab,dc=net", password => 'xxx' ); $mesg = $ldap->add( "ou=Users,dc=lab,dc=net", attrs => [ 'ou' => 'dc=Users', 'objectClass' => [ 'top', 'organizationalUnit' ] ] ); say $mesg->error; say $mesg->code; And got the following error: value of naming attribute 'ou' is not present in entry 64 However using the ldapmodify command line, and using this following ldif, works: dn: ou=Users,dc=lab,dc=net changetype: add objectclass: top objectclass: organizationalUnit ou: Users

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  • How to implement List, Set, and Map in null free design?

    - by Pyrolistical
    Its great when you can return a null/empty object in most cases to avoid nulls, but what about Collection like objects? In Java, Map returns null if key in get(key) is not found in the map. The best way I can think of to avoid nulls in this situation is to return an Entry<T> object, which is either the EmptyEntry<T>, or contains the value T. Sure we avoid the null, but now you can have a class cast exception if you don't check if its an EmptyEntry<T>. Is there a better way to avoid nulls in Map's get(K)? And for argument sake, let's say this language don't even have null, so don't say just use nulls.

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  • Apache, Rewrite Rule and Directories

    - by milo5b
    my sites-available/ file looks something like the following: <VirtualHost *:80> ServerAdmin webmaster@mysite ServerName mysite.co.uk ServerAlias www.mysite.co.uk DocumentRoot /home/mysite.co.uk/htdocs/ <Directory /home/mysite.co.uk/htdocs/> Options -Indexes FollowSymlinks MultiViews AllowOverride All Order allow,deny allow from all </Directory> ErrorLog ${APACHE_LOG_DIR}/mysite.co.uk/error.log LogLevel warn CustomLog ${APACHE_LOG_DIR}/mysite.co.uk/access.log combined </VirtualHost> In .htaccess (in the htdocs/), I have (amongst others) the following rewrite rule: RewriteRule ^enquiries$ /enquiries.php Somehow I have also a directory named "enquiries" (/home/mysite.co.uk/htdocs/enquiries/), and when I hit the url "www.mysite.co.uk/enquiries" I get: HTTP/1.1 301 Moved Permanently Date: Mon, 10 Dec 2012 18:53:37 GMT Server: Apache/2.2.16 (Debian) Location: http://www.mysite.co.uk/enquiries/ Vary: Accept-Encoding Content-Type: text/html; charset=iso-8859-1 And a Browser would display the directory's content. Now, I could easily rename the folder and get it sorted, but I would like to understand what's going on here. What would be the correct way to configure Apache in a way that it wont behave this way, and instead would listen to the Rewrite Rule? If I did not explain myself clearly, please feel free to ask more questions, I'd be happy to answer them. Thanks!

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  • DurandalJS vs AngularJS?

    - by Zach
    I'm looking for a JS framework to build an SPA and found DurandalJS and AngularJS. Can anyone compare these two frameworks? I did find many articles that compares AngularJS and KnockoutJS, and they say AngularJS is more than data binding, so I think DurandalJS may be the one to compare. I did a little research on AngularJS, it is good but one thing is bad: the $ prefix does not work when minified, although there is an ugly workaround. And someone said Twitter Bootstrap does not work well with it (I didn't check). For DurandalJS, I still cannot find the samples (http://durandaljs.com/documentation/Understanding-the-Samples/), so it's hard to say. PS: are they working well with TypeScript? Best regards, Zach

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  • code browsing, refactoring, auto completion in Emacs

    - by Idan K
    Hi, I recently switched to Emacs and still finding my way through it. I code in C++ and was wondering what tools out there extend Emacs to support code browsing (finding a symbol etc), refactoring and code completion. I have heard of: cedet etags cscope But I'm so confused about what I need. Some places say that cedet provides all of the functionality but other places say that I need to invoke etags for cedet to work properly. Can someone clear this up for me? Do I need all of these tools?

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  • Rendering large and high poly meshes

    - by Aurus
    Consider an huge terrain that has a lot polygons, to render this terrain I thought of following techniques: Using height-map instead of raw meshes: Yes, but I want to create a lot of caves and stuff that simply wont work with height-maps. Using voxels: Yes, but I think that this would be to much since I don't even want to support changing terrain.. Split into multiple chunks and do some sort of LOD with the mesh: Yes, but how would I do that? Tessellation usually creates more detail not less. Precompute the same mesh in lower poly version (like Mudbox does) and depending on the distance it renders one of these meshes: Graphic memory is limited and uploading only the chunks won't solve that problem since the traffic would be too high. IMO the last one sounds really good, but imagine the following process: Upload and render the chunks depending on the current player position. [No problem] Player will walk straight forward Now we maybe have to change on of the low poly chunk with the high poly one So, Remove the low poly chunk and load the high poly chunk [Already to much traffic here, I think] I am not very experienced in graphic programming and maybe the upper process is totally okay but somehow I think it is too much. And how about the disk space it would require.. I think 3 kind of levels would be fine but isn't that also too much? (I am using OpenGL but I don't think that this is important)

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