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  • SQL Injection prevention

    - by simonsabin
    Just asking people not to use a list of certain words is not prevention from SQL Injection https://homebank.sactocu.org/UA2004/faq-mfa.htm#pp6 To protect yourself from SQL Injection you have to do 1 simple thing. Do not build your SQL statements by concatenating values passed by the user into a string an executing them. If your query has to be dynamic then make sure any values passed by a user are passed as parameters and use sp_executesql in TSQL or a SqlCommand object in ADO.Net...(read more)

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  • Visual Studio 2010 Professional now on Dreamspark!

    - by Stacy Vicknair
    If you are a student and you were looking for your VS2010 fix today, be sure to check out Dreamspark.com and get your own copy! Dreamspark is simple; it’s about giving students Microsoft professional tools at no charge. Visit Dreamspark right now to sign up and get VS2010!   Technorati Tags: VS2010,Dreamspark,students,.NET

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  • Mandriva Linux 2010.2 est disponible, elle dépoussière la version sortie fin 2010 avec un nouveau bureau

    Mandriva Linux 2010.2 est disponible Elle dépoussière la version sortie fin 2010 avec un nouveau bureau Mise à jour 13/01/11, Par Hinault Romaric La distribution française Linux Mandriva 2010.2 vient d'être mise en ligne. Plus rapide, plus simple et plus sure, Mandriva Linux 2010.2 s'appuie sur le Kernel 2.6.33 et apporte plusieurs améliorations de sécurité, des correctifs de bogues, un nouveau bureau et le support d'un large panel d'applications et de configurations matérielles faisant qui en font, d'après l'éditeur, un environnent plus stable. « Ergonomique et rapide à la fois, Mandriva Linux 2010.2 s'in...

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  • Mutable Records in F#

    - by MarkPearl
    I’m loving my expert F# book – today I thought I would give a post on using mutable records as covered in Chapter 4 of Expert F#. So as they explain the simplest mutable data structures in F# are mutable records. The whole concept of things by default being immutable is a new one for me from my C# background. Anyhow… lets look at some C# code first. using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace MutableRecords { public class DiscreteEventCounter { public int Total { get; set; } public int Positive { get; set; } public string Name { get; private set; } public DiscreteEventCounter(string name) { Name = name; } } class Program { private static void recordEvent(DiscreteEventCounter s, bool isPositive) { s.Total += 1; if (isPositive) s.Positive += 1; } private static void reportStatus (DiscreteEventCounter s) { Console.WriteLine("We have {0} {1} out of {2}", s.Positive, s.Name, s.Total); } static void Main(string[] args) { var longCounter = new DiscreteEventCounter("My Discrete Counter"); recordEvent(longCounter, true); recordEvent(longCounter, true); reportStatus(longCounter); Console.ReadLine(); } } } Quite simple, we have a class that has a few values. We instantiate an instance of the class and perform increments etc on the instance. Now lets look at an equivalent F# sample. namespace EncapsulationNS module Module1 = open System type DiscreteEventCounter = { mutable Total : int mutable Positive : int Name : string } let recordEvent (s: DiscreteEventCounter) isPositive = s.Total <- s.Total+1 if isPositive then s.Positive <- s.Positive+1 let reportStatus (s: DiscreteEventCounter) = printfn "We have %d %s out of %d" s.Positive s.Name s.Total let newCounter nm = { Total = 0; Positive = 0; Name = nm } // // Using it... // let longCounter = newCounter "My Discrete Counter" recordEvent longCounter (true) recordEvent longCounter (true) reportStatus longCounter System.Console.ReadLine() Notice in the type declaration of the DiscreteEventCounter we had to explicitly declare that the total and positive value holders were mutable. And that’s it – a very simple example of mutable types.

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  • Shutdown/logoff script in Ubuntu 13.10

    - by TNT
    Which would be the best way to run a script upon GUI logoff, shutdown, hibernate, sleep modes? In 12.04 I think I did this in /etc/lightdm/lightdm.config, but on 13.10, the folder structure changed and when I create this script, The display manager wont even start upon boot. I am looking to implement a simple automatic truecrypt unmount command truecrypt -d but of course this would go for any script.

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  • How to get around the Circular Reference issue with JSON and Entity

    - by DanScan
    I have been experimenting with creating a website that leverages MVC with JSON for my presentation layer and Entity framework for data model/database. My Issue comes into play with serializing my Model objects into JSON. I am using the code first method to create my database. When doing the code first method a one to many relationship (parent/child) requires the child to have a reference back to the parent. (Example code my be a typo but you get the picture) class parent { public List<child> Children{get;set;} public int Id{get;set;} } class child { public int ParentId{get;set;} [ForeignKey("ParentId")] public parent MyParent{get;set;} public string name{get;set;} } When returning a "parent" object via a JsonResult a circular reference error is thrown because "child" has a property of class parent. I have tried the ScriptIgnore attribute but I lose the ability to look at the child objects. I will need to display information in a parent child view at some point. I have tried to make base classes for both parent and child that do not have a circular reference. Unfortunately when I attempt to send the baseParent and baseChild these are read by the JSON Parser as their derived classes (I am pretty sure this concept is escaping me). Base.baseParent basep = (Base.baseParent)parent; return Json(basep, JsonRequestBehavior.AllowGet); The one solution I have come up with is to create "View" Models. I create simple versions of the database models that do not include the reference to the parent class. These view models each have method to return the Database Version and a constructor that takes the database model as a parameter (viewmodel.name = databasemodel.name). This method seems forced although it works. NOTE:I am posting here because I think this is more discussion worthy. I could leverage a different design pattern to over come this issue or it could be as simple as using a different attribute on my model. In my searching I have not seen a good method to overcome this problem. My end goal would be to have a nice MVC application that heavily leverages JSON for communicating with the server and displaying data. While maintaining a consistant model across layers (or as best as I can come up with).

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  • Google Fiber to the Home - Joplin Edition

    - by Malcolm Anderson
    if you are within 30-40 miles of Joplin, you have got to check out http://www.broadbandbeyondborders.com/ Google is going to provide fiber-to-the-home in one community in the US. Broadband Beyond Borders will give them the experience of dealing with 6 counties, 3 states, and 10 nations (the US and 9 native american n...ations.) Follow the instructions on the web page. It was pretty simple.

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  • Superb post - What if Visual Studio had Achievements?

    - by Eric Nelson
    This post is simple superb – What if Visual Studio had Achievements :-) Although maybe you need to a developer who also has an Xbox to fully understand how good it is. My favourites: Shotgun Debugging – 5 Consecutive Solution Rebuilds with a single character change The Architect – Created 25 Interfaces in a single project The Multitasker – Have more than 50 source files open at the same time Every Option Considered – Created an enum with more than 30 values Thanks to Dominic for highlighting it to me!

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  • Aggregating customer service emails from multiple ecommerce sites for easy handling

    - by nitbuntu
    For one of my main customer help email addresses I use Mozilla Thunderbird with a combination of tags and saved searches. As the number of my e-commerce sites grows from 1 to more, customer service handling gets more tricky. Is there any simple and efficient way of handling emails from the different sites? Perhaps what I'm looking for is a way of aggregating customer service emails from different sites, into one place? Perhaps there's a way of already doing this within Thunderbird or Gmail?

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  • BlackBerry 10 : premières fonctionnalités et premières images exclusives de l'OS fondé sur QNX qui doit sauver RIM

    BlackBerry 10 : premières fonctionnalités et premières images exclusives Du futur OS mobile qui doit sauver RIM RIM a profité de sa conférence pour développeurs, le BlackBerry Jam, de passage à Paris pour dévoiler les premières informations sur son prochain OS. Si certains participants sont repartis avec des téléphones expérimentaux, des BlackBerry Dev Alpha - mélange de tablette PlayBook miniature et d'iPhone sans aucun bouton - ces appareils ne donnent cependant pas beaucoup d'indices sur ce que sera le système. Ces appareils ne sont en effet équipés que d'un simple navigateur. C'est en aparté que David Derrida, Directeur produit chez RIM France, a fait une première démon...

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  • How to Send the Contents of the Clipboard to a Text File via the Send to Menu

    - by Jason Faulkner
    We have previously covered how to send the contents of a text file to the Windows Clipboard with a simple Send To shortcut, but what if you want to do the opposite? That is: send the contents of the clipboard to a text file with a simple shortcut. No problem. Here’s how. Copy the ClipOut Utility While Windows offers the command line tool ‘clip’ as a way to direct console output to the clipboard, it does not have a tool to direct the clipboard contents to the console. To do this, we are going to use a small utility named ClipOut (download link at the bottom). Simply download and extract this file to a location in your Windows PATH variable (if you don’t know what this means, just extract the EXE to your C:\Windows folder) and you are ready to go. Add the Send To Shortcut Open your Send To folder location by going to Run > shell:sendto Create a new shortcut with the command: CMD /C ClipOut > Note the above command will overwrite the contents of the selected file. If you would like to append to the contents of the selected file, use this command instead: CMD /C ClipOut >> Of course, you could make shortcuts for both. Give a descriptive name to the shortcut. You’re finished. Using this shortcut will now send the text contents copied to your Windows Clipboard to the selected file. It is important to note that the ClipOut tool only supports outputting text. If you had binary data copied to your clipboard, then the output would be empty. Changing the Icon By default, the icon for the shortcut will appear as a command prompt, but you can easily change this by editing the properties of the shortcut and clicking the Change Icon button. We used an icon located in “%SystemRoot%\System32\shell32.dll”, but any icon of your liking will do. As an additional tweak, you can set the properties of the shortcut to run minimized. This will prevent the command window from “blinking” when the send to command is run (instead it will blink in your taskbar, which is hardly noticeable). Links Download ClipOut Utility     

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  • Normal vector of a face loaded from an FBX model during collision?

    - by Corey Ogburn
    I'm loading a simple 6 sided cube from a UV-mapped FBX model and I'm using a BoundingBox to test for collisions. Once I determine there's a collision, I want to use the normal vector of the collided surface to correct the movement of whatever collided with the cube. I suppose this is a two-part question: 1) How can I determine which face of the cube was collided with in a collision? 2) How can I get the normal vector of that surface?

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  • (Where) Can I learn creating art for my 2D games?

    - by Poorly paid coder
    I'm currently bad at drawing. If I want to create something looking acceptable, it usually takes me hours and hours to fiddle around just to get the basic looks right. I think that I'm not completely skill-less, I just lack simple drawing techniques.. Am I a hopeless case? Where is a good place to start out in drawing for 2D games? I'd like to be able to create acceptably good backgrounds, terrains / tilemaps, characters and weapons

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  • SQL Server stored procedure to generate random passwords

    SQL Server is used to support many applications and one such feature of most applications is the storage of passwords. Sometimes there is a need to reset a password using a temporary password or generate a random password for a new user. In this tip I cover a simple stored procedure to generate random passwords that can be incorporated into your applications. Get Smart with SQL Backup Pro Powerful centralised management, encryption and more.SQL Backup Pro was the smartest kid at school Discover why.

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  • Gosu ruby windows no allocator for Image [on hold]

    - by user2812818
    I am trying to run the Gosu tutorial on Windows XP for ruby 1.93 It quits with `new': allocator undefined for Gosu::Image (TypeError) when trying to initialize a new Image: require 'gosu' require 'rubygems' class GameWindow < Gosu::Window def initialize super(640, 480, false) self.caption = "Gosu Tutorial Game" @background_image = Gosu::Image.new(self, "/media/123.bmp", true) end end I made sure the image is there and is png/bmp. I know it is something simple, maybe to do with the DLL's required? just not sure what.... thanks sgv

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  • Snap Spiffy Linux Screenshots with Shutter

    <b>LinuxPlanet:</b> "Paul Ferrill introduces us to the Shutter screen grab for Linux application. Shutter offers a simple interface and a whole lot of functionality. including cursor capture, whole Web page capture, and annotations."

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  • ViewModelLocators

    - by samkea
    Bobby's http://blog.bmdiaz.com/archive/2010/03/31/kiss-and-tell---mvvm-and-the-viewmodellocator.aspx Kelly's http://blog.kellybrownsberger.com/archive/2010/03/31/81.aspx John Papa and Glen Block http://johnpapa.net/silverlight/simple-viewmodel-locator-for-mvvm-the-patients-have-left-the-asylum/

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  • Video playback in games - formats & decoding

    - by snake5
    What free / non-restrictive open-source solutions (not GPL) are available for decoding game videos? The requirements are simple: a relatively easy to use C API encoded files must be quite small there must be an application that converts videos from any format (whatever codec is installed on Windows or equivalent amount of internally decoded formats) decoding has to happen fairly quickly bonus points go to file formats that are popular / actively supported and developed

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  • Collision detection of player larger than clipping tile

    - by user1306322
    I want to know how to check for collisions efficiently in case where the player's box is larger than a map tile. On the left is my usual case where I make 8 checks against every surrounding tile, but with the right one it would be much more inefficient. (picture of two cases: on the left is the simple case, on the right is the one I need help with) http://i.stack.imgur.com/k7q0l.png How should I handle the right case?

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  • Software Center doesn't show files installed

    - by postfuturist
    When I install a program in the Software Center that happens to install a menu option, it is discoverable through the menu, but if it is a package that is documentation, or command-line only, there is no simple way to discover how to actually access the content / software. Is there a way in the Software Center to see what files or executables were installed with a particular package so I can actually use / read it?

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