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• Why "private" methods in the object oriented ?

  - by pointlesspolitics

  I understand it is a very basic concept in the oops. But still I cannot get my head around. I understood why member variables are private, so class user cannot abuse it by setting up invalid values. But how can this apply to the methods ?

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• How do I do a webkit transformation "onload" instead of pre-load?

  - by Matt Everson

  I'd like to do a webkit transformation (rotate an image, specifically) after the page loads rather than getting it pre-rotated at load. I'm guessing I need to use some sort of "onload" event to apply it or something, but I'm not a javascript guy.

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• Scaling mouse coordinates for GlScale?

  - by user146780

  Right now I have a GL context that is set up with a top left coordinate system. I made my mouse so that its 0,0 is the top left of the Open GL frame. If I apply GlScalef(2,2,2) for example to my scene, how would I have to change my mouse so that drawing stil maps out correctly. Thanks

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• jQuery - re-use CSS value on another element

  - by danit

  I have a background colour set on a series of buttons, .button1, .button2., .button3 & .button4. Each of these buttons has a different background colour set in CSS. I want to use jQuery to detect the background colour of the button when it is clicked and apply that colour to .toolbar. Is this possible?

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• Delegates in Action -Help

  - by Amutha

  I am learning delegates.I am very curious to apply delegates to the following chain-of-responsibility pattern. Kindly help me the way to apply delegates to the following piece. Thanks in advance.Thanks for your effort. #region Chain of Responsibility Pattern namespace Chain { public class Player { public string Name { get; set; } public int Score { get; set; } } public abstract class PlayerHandler { protected PlayerHandler _Successor = null; public abstract void HandlePlayer(Player _player); public void SetupHandler(PlayerHandler _handler) { _Successor = _handler; } } public class Employee : PlayerHandler { public override void HandlePlayer(Player _player) { if (_player.Score <= 100) { MessageBox.Show(string.Format("{0} is greeted by Employee", _player.Name)); } else { _Successor.HandlePlayer(_player); } } } public class Supervisor : PlayerHandler { public override void HandlePlayer(Player _player) { if (_player.Score >100 && _player.Score<=200) { MessageBox.Show(string.Format("{0} is greeted by Supervisor", _player.Name)); } else { _Successor.HandlePlayer(_player); } } } public class Manager : PlayerHandler { public override void HandlePlayer(Player _player) { if (_player.Score > 200) { MessageBox.Show(string.Format("{0} is greeted by Manager", _player.Name)); } else { MessageBox.Show(string.Format("{0} got low score", _player.Name)); } } } } #endregion #region Main() void Main() { Chain.Player p1 = new Chain.Player(); p1.Name = "Jon"; p1.Score = 100; Chain.Player p2 = new Chain.Player(); p2.Name = "William"; p2.Score = 170; Chain.Player p3 = new Chain.Player(); p3.Name = "Robert"; p3.Score = 300; Chain.Employee emp = new Chain.Employee(); Chain.Manager mgr = new Chain.Manager(); Chain.Supervisor sup = new Chain.Supervisor(); emp.SetupHandler(sup); sup.SetupHandler(mgr); emp.HandlePlayer(p1); emp.HandlePlayer(p2); emp.HandlePlayer(p3); } #endregion

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• How can I make the width of a page dynamic up to a certain limit?

  - by ensnare

  For example, dynamic and fluid between 600px - 1000px, but fixed at 1000px after 1000px and fixed at 600px below 600px. Check out digg.com for an example. I'd like a way that is cross-browser compatible. Thank you!

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• facebook application error

  - by moustafa

  it needs facebook facepile plugin(http://developers.facebook.com/docs/reference/plugins/facepile). i tried but i am getting this error (The Facebook Connect cross-domain receiver URL (http://static.ak.fbcdn.net/connect/xd_proxy.php#?=&cb=f223d517566e616&origin=http%3A%2F%2Fpromolife.com.au%2Ff3e13728ba8ec8&relation=parent.parent&transport=postmessage) must have the application's Connect URL (http://www.testsite.com.au/) as a prefix. You can configure the Connect URL in the Application Settings Editor.) why do i getting this error please help me.

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• 3D transformations on rendered HTML in flash?

  - by nibblebot

  I'm trying to figure out if this is possible to execute on a dynamic page. http://salesdemo.unicast.com/vla/asset/demo/604_150148/index.html Basically, after all the page has been rendered, Flash needs to take the rendered page and apply 3D transformations to it, and at the end, restore the original rendered page. How is this possible?

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• Matlab - applying low-pass filter to a vector?

  - by waitinforatrain

  If I have a simple low-pass filter, e.g. filt = fir1(20, 0.2); and a matrix with a list of numbers (a signal), e.g. [0.1, -0.2, 0.3, -0.4] etc, how do I actually apply the filter I've created to this signal? Seems like a simple question but I've been stuck for hours. Do I need to manually calculate it from the filter coefficients?

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• PHP question on XSS

  - by user318466

  I need help in solving the following MCQ: Which of the following filtering techniques prevents cross-site scripting (XSS) vulnerabilities? A. Strip all occurrences of the string script. B. Strip all occurrences of the string javascript. C. Enable magic_quotes_gpc. D. None of the above. I think once the word java script is deleted there is no more threat. Am I correct ?

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• Doctrine: String keys with Array hydration

  - by BenV

  According to their documentation, you should use Array hydration rather than record hydration when retrieving data for read-only purposes. However, this means I have to access the attributes of the retrieved object using arrays and string keys: $user['Phonenumbers'][0]['number'] instead of the OO style: $user->PhoneNumbers[0]->number Now I'm kinda new to PHP, but in other languages I've worked with the 2nd notation would be preferable because typos would be caught at compile time while typos in string literals would not be noticed until runtime. Does this apply to PHP/Doctrine?

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• [Flex 4] Anyway to change the style of datagrid??

  - by Jerry

  Hello I am trying to change the header color and the row color of the datagrid. Apparently, its not a spark component so can't apply skin on it. Anyone knows how to style it? Thanks.

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• How to read Windows.UI.XAML.Style properties in C#

  - by Igor Kulman

  I am writing a class that will convert a HTML document to a list of Paragrpahs that can be used with RichTextBlock in Windows 8 apps. I want to be able to give the class a list of Styles defined in XAML and the class will read useful properties from the style and apply them. If I have a Windows.UI.XAML.Style style how do I read a property from it? I tried var fontWeight = style.GetValue(TextElement.FontWeightProperty) for a style defined in XAML with TargetProperty="TextBlock" but this fails with and exception

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• XmlDocument filter nodes by datetime string

  - by Eatdoku

  Trying to apply filter / attribute comparison in the Xmldocument. Obviously , the following code snippet wouldn't work because the expression can't be converted using number() function. (according to the answer of my other question). I'm wondering if there is a way to do the DateTime string comparison in XmlDoc. XmlNodeList test = x2PathDoc.SelectNodes("//Config /Entity [@TargetDateTime> '2010-12-19T03:25:00-08:00']");

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• Built-in precedence for Expression Trees?

  - by jdk

  I'm unable to find the .NET FCL built-in concept of precedence to leverage while constructing Expression Trees. Ref System.Linq.Expressions Namespace. Is this something that must be handled manually in code, or is it somehow implicit and I'm not recognizing it, maybe through helper methods or classes? I want to apply it to math operations to ensure 3 + 5 * 10 results in 53 instead of 80.

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• *Right* outer join in LINQ

  - by Rap

  Is it safe to say that there is no such thing as a right outer join in LINQ? I know to effectively create one, you'd just swap the tables in a left outer join. But can you apply the DefaultIfEmpty() method to the table on the left side of the equijoin to make it a right outer join?

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• What's the best way of playing media files (esp. audio) with Mono/C#?

  - by supercheetah

  I'm trying to create something that will be playing some sound and music for some things in Mono+C#, but I'm not sure what the best thing will be for that. I'm trying to make it usable with things like Ogg Vorbis, MP3s, and wave files. My primary platform will be Linux, although a cross platform solution would be nice. Anyone have any suggestions for libraries for playing audio files?

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• capturing user identity for an online application

  - by Samuel

  We are designing an online application (college admission form) which mandates the user to upload a scanned copy of his photo along with his signature, so that this information can be used to cross verify the applicant when he appears for a exam + personal interview at a later point in time. This entire process requires a scanner for the applicant to scan his photo / signature into an appropriate size. Is there a better way to capture user identity for such purposes as usage of scanner for capturing signature, photo is a painful process.

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• How do we protect our Wordpress from hacker ?

  - by justjoe

  it's can be apply not only to wordpress. But to all blog platform that can be installed into a server and shared host. so, What do you do via PHP coding or pluggin or any method to secure your installation ?

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• Fluent Nhibernate Order-By on Collection

  - by madcapnmckay

  Hi, If I have a collection mapped in Fluent NHibernate and I want to apply an order to that collection how do I do that? Eg: HasMany(x => x.PastDates) .AsBag().Cascade .SaveUpdate() .KeyColumnNames.Add("EventId") .Where(e => e.DateFrom < DateTime.Now.Date) .Inverse(); I'm looking for the equivalent of the order-by attribute in HBM files. Thanks

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• What is the difference between Cygwin and MinGW?

  - by Lukasz Lew

  I want to make my C++ project cross platform, and I'm considering using Cygwin/MinGW. But what is the difference between them? Another question is whether I will be able to run the binary on a system without Cygwin/MinGW?

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• Why does GWT's RichTextArea implement HasInitializeHandlers?

  - by David

  ...and what can I do with my RichTextArea after the onInitialize method has been called that I cannot do before? N.B. This is a cross-post from the GWT Google group, which produced no response.

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• Get the Grid data in ColumnHeaderClick

  - by plotnick

  Sorrry guys, I'm stuck here. I have a few grids, I also have CollectionViewSource objects associated with those grids. Now, I'm trying to apply CollectionViewSource.SortDescriptions in ColumnHeaderClick method, and now I have to define almost the same method for each grid. But the only thing I really need is to obtain in which Grid is happenning. How to get that, I have no idea. Help me please. VisualTreeHelper.GetParent didn't work.

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• changing scroll bar color using css

  - by Joemon

  can we give different color to scroll bar face color and arrow background ? right now if I apply " scrollbar-face-color " it is applying to both arrow background as well as scroll bar thump can we give two different colors ?

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• Pubsub implementation with jaxl library

  - by Pankaj Khurana

  Hi, I am using jaxl library for bot development on my debian server with openfire. Now i want to apply pubsub functionality to it. My scenario is : user subscribes to an event & when an event occurs message is sent to all the subscribers. I am confused how to implement pubsub through im. Please help Thanks

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