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• What's the correct way to instantiate an IRepository class from the Controller?

  - by GenericTypeTea

  I have the following project layout: MVC UI |...CustomerController (ICustomerRepository - how do I instantiate this?) Data Model |...ICustomerRepository DAL (Separate Data access layer, references Data Model to get the IxRepositories) |...CustomerRepository (inherits ICustomerRepository) What's the correct way to say ICustomerRepository repository = new CustomerRepository(); when the Controller has no visibility to the DAL project? Or am I doing this completely wrong?

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• VB.NET Abstract Property

  - by ElPresidente

  I have an abstract "GridBase" class with two types of derived classes "DetailGrid" and "HeaderGrid". Respectively, one is comprised of "DetailRow" objects and the other "HeaderRow" objects. Both of those inherit from a "RowBase" abstract class. What I am trying to do is the following: Public MustInherit Class GridBase Private pRows As List(Of RowBase) Public ReadOnly Property Rows As List(Of RowBase) Get Return pRows End Get End Property End Class Public Class DetailGrid Inherits GridBase End Class In this scenario, I want DetailGrid.Rows to return a list of DetailRow. I want HeaderRow.Rows to return a list of HeaderRow. Am I on the right track with this or should the Rows property not be included in the GridBase class?

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• how to create code behind class file in asp.net mvc?

  - by saavi

  hai, i want to create index.aspx.cs file in mvc.can anybody tell me the process for this? thank u.

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• [Zend Framework] How to fetch data from another table within a Zend_Db model class?

  - by rasouza

  I have two tables registries and names. Consequently, I have two model classes. I'm coding a method in registries model and I need to fetch all names in the names table/model. How'd I do it? Should a simple new Names() work? But, is it recommended?

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• Is there some tool to visualize Java class hierarchies and relations?

  - by Niyaz

  Here is my problem: I will provide the source code of my application as input and what I want as output is a visual representation of the relationship between classes, method calls etc. Is there some tool to do this?

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• Can I use a static variable from a Java class in res/values/styles.xml?

  - by neu242

  I want to refer to a static Java variable in my styles.xml, is that possible? Here's a pseudo-xml example: <style name="Artwork"> <item name="android:background">@drawable/border_{Constants.MY_COLOR}</item> </style>

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• In java if i extend a class and don't use a super field while redefing every function does the field

  - by i30817

  It's all in the title.

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• Is it possible to store Python class objects in SQLite?

  - by lakshmipathi

  I would like to store Python objects into a SQLite database. Is that possible? If so what would be some links / examples for it?

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• Property hiding and reflection (C#)

  - by tehMick

  Declaring a property in a derived class that matches the name of a property in the base class "hides" it (unless it overrides it with the override keyword). Both the base and derived class properties will be returned by Type.GetProperties() if their types don't match. However, if their types do match, shockingly only the derived class's property is returned. For instance: class A { protected double p; public int P { get { return (int)p; } set { p = value; } } } class B : A { public new int P { get { return (int)p; } set { p = value; } } } class C : B { public new float P { get { return (float)p; } set { p = value; } } } Calling typeof(C).GetProperties() will only return B.P and C.P. Is it possible to call GetProperties() in a way that returns all three? There is almost certainly a way to do it by traversing the inheritance hierarchy, but is there a cleaner solution?

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• Is there a .NET class that represents operator types?

  - by user323774

  I would like to do the following: *OperatorType* o = *OperatorType*.GreaterThan; int i = 50; int increment = -1; int l = 0; for(i; i o l; i = i + increment) { //code } this concept can be kludged in javascript using an eval()... but this idea is to have a loop that can go forward or backward based on values set at runtime. is this possible? Thanks

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• Calling a static method on a class known by name?

  - by Palantir

  Hello! Is there any way to obtain this effect in a PHP version prior to 5.3? $className = 'A'; $className::myStaticMethod(); Thanks! Palantir

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• We are using EntityFrame work in a singleton class ? - Not reflecting the DataBase changes in the fr

  - by anishmarokey

  Our application is using Entity Framework(.net 3.5) and single Ton . When i update in the back end through procedure.It is not reflecting in the entity context. I tried with refresh - But it is not refreshing Foreign Key. How to refresh the entire context in Entity Framework ?

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• Are there any open source C# libraries for binding the properties from one class to another?

  - by Jason Slocomb

  I don't remember which blog I was reading, because it seemed academic at the time, but there was a library being discussed where you could take a two concrete classes and bind the properties together if the names matched. Think ASP.NET MVC model binding.

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• What's wrong with naming a class as a manager or controller?

  - by fig-gnuton

  With respect to OOP best practices, why do some people feel it's poor design if you call something a WhateverManager or WhateverController? Is this widely accepted as a best practice (to avoid this)? And what is the recommended alternative?

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• Do you use any GoogleMaps Api PHP wrapper class/libarary/script to plot maps?

  - by Wbdvlpr

  I want to display google maps (mutliple markers etc) and just found that there is one paid solution "GMap 2.3" for PHP. I was looking for an open source solution. Do you guys code using Google Maps API functions or use any wrapper script? What are some good links for this?

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• Is it acceptable to design my GLSurfaceView as a main control class?

  - by Omega

  I'm trying to structure a game I'm making in Android so that I have a sound, flexible design. Right now I'm looking at where I can tie my games rules engine and graphics engine together and what should be in between them. At a glance, I've been eying my implementation of GLSurfaceView, where various screen events are captured. My rationale would be to create an instance of my game engine and graphics engine here and receive events and state changes to trigger updates of either where applicable. Further to this, in the future, the GLSurfaceView implementation could also store stubs for players during a network game and implementations of computer opponents and dispatch them appropriately. Does this seem like a sensible design? Are there any kinds of improvements I can make? Thanks for any input!

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• What is the benefit of using a factory class in the following code?

  - by Emanuil

  Here's the code: SAXParserFactory mySAXParserFactory = SAXParserFactory.newInstance(); SAXParser mySAXParser = mySAXParserFactory.newSAXParser(); Why use that if you can use something like: SAXParser mySAXParser = new SAXParser();

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• Using Predicate of a class to Search Generic list - Faster than looping?

  - by Srikanth

  Lets say we have a generic list of Class1, typically having ~100 objects for a given session. I would like to see if the list has a particular object. ASP.NET 2.0 allows me to do this: Dim objResult as Class1 = objList.Find(objSearch) How does this approach rate when compared to a traditional For loop, looking at a performance perspective? How would this vary with increase or decrease in length of the list?

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• c++ manipulator question

  - by robert

  i have a class: template<class T> class matrix { private: int COLS,ROWS; public: inline matrix(int r,int c){ this->COLS=r; this->ROWS=c; } template<class T2> friend ostream& info(ostream& os); }; i tried in so many ways to implement the info class.but none is succeed. i want to use it in main function Matrix<int> M(10,20); cout<<info<<M; i want to out put the Matrix class's cols, and rows information. i have tried so many time in implementing the friend class info, but failed. any one can tell me how can do it?

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• Designing operation (a,b) -> (c,d)

  - by golergka

  I have an operation that I need to design. That operation takes two objects of a certain class X, and returns two new objects of the same class (I may need the originals later). The logic that dictates the selection of this object is contained in class Y. On one hand, I don't want class Y to know details about class X implementation; on the other, I don't want class X to know details about selecting the different objects to perform this operation on. If that was all the problem, I'd just create a static method on class A. However, the methods in language I'm working on return only one object. Also, the operation needs to be robust, and calling operation two times to get C and D respectively isn't possible, as both C & D both rely on a single random number. How should I design such operation? Update: I'm using Obejctive C.

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• How do I enable a Text class to accept html text and will I be able to calculate height and width?

  - by Adam

  When showing the html I would need to know the height of the text box in order to align things below it properly.

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• Naming "class" and "id" HTML attributes - dashes vs. underlines

  - by Emanuil

  <div id="example-value"> or <div id="example_value">? This site and Twitter use the first style. Facebook and Vimeo - the second. Which one do you use and why?

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• Using regex to strip out certain data from HTML code via PHP

  - by Chris

  I have the following HTML snippet <tr> <td class="1">...</td> <td class="2">...</td> <td class="3">...</td> <td class="4">...</td> </tr> etc... I basically have N rows, and each row contains 4 TD's each with a unique class. I would like a simple way to split out all the rows and TD's by class so I can choose what data I want to use. I expect the easiest way to achieve this would be regex (maybe two). One to split up the TR's then another to split up the TDs (by class preferably) Thanks

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• When is it necessary to override Equals() in a .NET class?

  - by Alex Angas

  .NET contains its own equality comparison functionality, however I don't really understand how it works. If the desired Equals() and == behaviour is to verify that every field of an object is equal to every field of another object, is it necessary to override Equals() with a method that does this explicitly?

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• Is it good practice to pass scoped_ptr by reference (from one method to another inside a class)?

  - by eriks

  Or if i need to do that, than i should just use shared_ptr? I know i have many questions regarding smart pointer - i still don't quite understand when to use which smart pointer.

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