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• Generic data input form in asp.net mvc application

  - by Diego

  Hello, I have an application that have EF 16 classes that share this information: They all are classes only with a key field and a description. I think it should be a waste if I make a controller with just 1 method just to present a form to fill these classes info, then I was thinking in to make a generic form(with key, description) and dynamically fill the right class through a sort of selection the selected info in any way, any good suggestion or pattern to do that? Where the generic methods should be located.

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• JQuery and Secondary Functions in plugins

  - by PPPHP

  Hello http://www.learningjquery.com/2007/10/a-plugin-development-pattern I read this tutorial and there was a talk about secondary functions in a plugin. How can I use those functions outside the plugin?

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• Thread local patterns its usage

  - by Suresh S

  what was the problem there earlier ? and how ThreadLocal pattern solved and what purpose it serves. can somebody provide a thought ? specifically on java.

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• Ctor not allowed return type.

  - by atch

  Having code: struct B { int* a; B(int value):a(new int(value)) { } B():a(nullptr){} B(const B&); } B::B(const B& pattern) { } I'm getting err msg: 'Error 1 error C2533: 'B::{ctor}' : constructors not allowed a return type' Any idea why? P.S. I'm using VS 2010RC

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• Javascript object literals

  - by user299925

  When should object literals be used in javascript, sometimes I get confused I am trying to apply oop concepts and pattern to the language. I am trying to not just use procedural programming concepts because I know the language has amazing capabilities.

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• Disadvantage of unlifted type products?

  - by peaker

  In Haskell, lifted type products mean that there's a semantic difference between (a,b,c) and (a, (b, c)). If all pattern matches of all products was always irrefutable, then there would be no difference, and (a, b, c) could be syntactic sugar for (a, (b, c)). Why did Haskell choose to lift type products?

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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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• Why do we have contains(Object o) instead of contains(E e)?

  - by Vivin Paliath

  Is it to maintain backwards compatibility with older (un-genericized) versions of Collection? Or is there a more subtle detail that I am missing? I see this pattern repeated in remove also (remove(Object o)), but add is genericized as add(E e).

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• JavaScript: When should I use a semicolon after curly braces?

  - by Rob

  Many times I've seen a semicolon used after a function declaration, or after the anonymous "return" function of a Module Pattern script. When is it appropriate to use a semicolon after curly braces?

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• How to tar multiple files in perl

  - by kpraveenreddy

  How can I tar multiple directories and also append files with some pattern like '.txt' and exclude some directories and exclude some patterns like '.exe' all into a single tar file. The main point is the number of directories are unknown(dynamic), so I need to loop through..I guess?

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• Compare Database container and class container

  - by Mohit Deshpande

  I am using a SQL Server database in my current project. I was watching the MVC Storefront videos (specifically the repository pattern) and I noticed that Rob (the creator of MVC Storefront) used a class called Category and Product, instead of a database and I have notice that using LINQ-SQL or ADO.NET, that a class is generated. Is there an advantage to using a class over a database to store information? Or is it the other way around? Or are they even comparable?

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• Building CSS3 Simulated Lightsource on Background

  - by Volomike

  Is there a way to take a DIV that has a background image on it, then apply a CSS3 gradient on it to simulate a lightsource? The reason I ask was because I was thinking of making the BODY tag on a page use a repeating background pattern, apply the CSS3 gradient lightsource on it, and then stick a white DIV on top of that where all the page content would go. For those without CSS3, it would degrade nicely into just a white DIV on top of a repeating background.

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• bash grep finding java declarations

  - by Amarsh

  i have a huge .java file and i want to find all declared objects given the className. i think the declaration will always have the following signature: className objName; or className objName = or className objName= can someone suggest me a grep pattern which will find these signatures. I have the following (incomplete) : cat $rootFile | grep "$className "

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• What does the following Regex expression do?

  - by Jim

  Hi, I would like to understand what the following code is doing. This logic is part of a routine to strip out html from the body of an email message. mBBSREgEx.IgnoreCase = True mBBSREgEx.Global = True mBBSREgEx.Pattern = "<[^>]*>" sResult = mBBSREgEx.Replace(sResult, "") Thank you, Jim

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• code style for private methods in c#

  - by illdev

  I just found out, that it seems a common pattern to user UpperFirstLetterPascalCase() for private methods. I for myself, find this completely inconsistent with naming rules of private instance fields and variables and I find it difficult to read/debug, too. I would want to ask, why using a first upper letter for methods could be a better choice than a first lower (doThis())? Just out of curiosity...

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• python regex of a date in some text

  - by Horace Ho

  How can I find as many date patterns as possible from a text file by python? The date pattern is defined as: dd mmm yyyy ^ ^ | | +---+--- spaces where: dd is a two digit number mmm is three-character English month name (e.g. Jan, Mar, Dec) yyyy is four digit year there are two spaces as separators Thanks!

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• intercepting feed:// in safari5

  - by edwink

  Hello. I am writing an extension for Safari5 and I am trying to intercept the fact that the user is clicking on an RSS icon and loading a feed://.... URL to offer him/her subscription options. I have tried to register a start content script for the feed:/// whitelist pattern but that does not work. Does anyone know how to make this work?

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• ASP.NET Exception Handling in background threads

  - by Xodarap

  When I do ThreadPool.QueueUserWorkItem, I don't want unhandled exceptions to kill my entire process. So I do something like: ThreadPool.QueueUserWorkItem(delegate() { try { FunctionIActuallyWantToCall(); } catch { HandleException(); } }); Is this the recommended pattern? It seems like there should be a simpler way to do this. It's in an asp.net-mvc app, if that's relevant.

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• JavaScript Encapsulation / JQuery

  - by Chris

  I am trying to figure out how to keep my page variables in my application from being defined globally. I've come up with a few methods but am wondering if there is a general standard approach people use. I've got my plugin design pattern down using this approach: http://www.virgentech.com/blog/2009/10/building-object-oriented-jquery-plugin.html. But I'm just not sure how to handle my page level encapsulation.

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• Resharper Warnings with MVVM

  - by Dan Bryant

  As I implement the MVVM pattern with WPF, I'm finding that Resharper is often warning me that certain properties are never used in my ViewModels. The problem is that they are being used, but only by the data binding system. Has anyone else encountered this annoyance and is there a way to help Resharper realize that these properties are, indeed, being used? I am glad, at least, that VS 2010 properly realizes that [Import] tagged members won't "always be null", but hopefully I can fix this issue as well.

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• Issue with my regular expression?

  - by Rubans

  I'm trying to locate the number matches in a relative path for directory up references("..\"). So I have the following pattern : "(..\)" which works as expected for the path "....\a\b" where it will give me 2 successfull groups ("..\") but when I try the path "..\a\b" it will also return 2 when it should be 1. I tried this in a reg ex tool such Expresso and it seems to work as expected in there but not in in .net, any ideas?

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• Are there any MVP Frameworks projects out there?

  - by Greg Malcolm

  MVC is used a number of popular frameworks. To name just a few, Ruby on Rails, ASP.NET MVC, Monorail, Spring MVC. Are there any equivalent frameworks using any variant of MVP? Most of the examples I've found online seem to be custom implementations of the pattern rather than reusable frameworks. Suggestions need not be specific to any particular programming language, my interest is mostly academic.

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• strange behaviour of grep in UNIX

  - by Happy Mittal

  When I type a command $ grep \\h junk then shell should interpret \\h as \h as two pairs of \ become \ each, and grep in turn, should interpret \h as \h as \ becomes \, so grep should search for a pattern \h in junk, which it is doing successfully. But it's not working for \\$. Please explain why ?

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• PHP regex delimiter, what's the point?

  - by Evan Fosmark

  Why do PHP regexes have the surrounding delimiters? It seems like it would be more clear if any pattern modifiers were passed in as a parameter to whatever function was being used.

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• Control statements in Haskell?

  - by Nathan

  I am just beginning Haskell, but from all the online tutorials I've found I can't seem to find if there is one accepted way to do a conditional control statement. I have seen if-else, guards, and pattern matching, but they all seem to accomplish the same thing. Is there one generally accepted/faster/more efficient way than the rest?

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