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Search found 50247 results on 2010 pages for 'base class'.

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• Variable Binding Class

  - by Davis

  Hi, I believe this is a tough one... I'm trying to create a collection of variable binding in a class. It is intended to look something like this: Dim x as integer, s as string Dim c as new VBindClass x = 1 s = "Hello" c.Add x, s Debug.Print c.value(x) '= 1 Debug.Print c.value(s) '= "Hello" Is there some function that allow us to retrieve a unique ID for a given variable and also get/set based on variable?

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• Implementing prototypes OR instantiating class objects

  - by intuited

  I'm wondering how to implement prototypal inheritance in Python. It seems like the way to do this would be to either use a metaclass to cause instantiations to actually be classes, rather than objects, or use some magical powers to transform an existing object into a class. The second method would seem to be more flexible, in that it could be applied to existing objects of varied types, while the first would likely be more convenient for typical use cases. Insights on the practicality of these two approaches, as well as alternative suggestions, are hereby requested.

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• Creating an instance within the Class itself

  - by didxga

  What's going on when the assignment statement executed at Line 4, does compiler ignore the new operator and keep the foo variable being null or something else happen to handle this awkward moment? public class Foo { // creating an instance before its constructor has been invoked, suppose the "initializing" // gets printed in constructor as a result of the next line, of course it will not print it private Foo foo = new Foo();//Line 4 public Foo() { System.out.println("initializing"); } }

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• How operator new calls the constructor of class?

  - by Ganesh Kumar

  I know that, new operator will call the constructor of class. But how it's happening, what is ground level techniques used for this.

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• Accessing Custom Configurations in NUnit class

  - by Martin Ongtangco

  I'm really banging my head onto this one. I can't make the Custom Configuration to work with NUnit. It kept on failing to read the configuration file. I followed carefully this article: http://devlicio.us/blogs/derik_whittaker/archive/2006/11/13/app-config-and-custom-configuration-sections.aspx placed the references in the Unit test class App.Config, still everything failed. Is there some sort of a magic setting to do here?

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• Open Graph API - Github PHP Class

  - by clarkstudios

  Hi all, I have downloaded the PHP class from github which is the wrapper for their Open Graph API. I can log in and list freinds and images etc. But what I am really struggling with is allowing for extended permissions to allow posting to a users wall. I know somewhere I need to add "scope=publish_stream" to allow this option and can only assume it is on the getLoginUrl method but I am having next to know joy with it. Can anyone help me. Steve

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• Accessing controls from implementation class

  - by Madegnas

  I develop a game that has a big number of buttons (25). I want to know if i can access them without initiating them in interface (.h) in my implementation class.

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• C++ class pointer

  - by JHollanti

  I know that you can get a reference to a static method like this: typedef void (*pointer)(); pointer p = &MyClass::MyMethod; But is there a way to get a reference to the class itself?

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• view parents' class members in netbeans navigator?

  - by fayer

  in the navigator i can only see the current class' members. is there a way to include the parents' members. cause it is very useful when working with a framework, then you don't have to look for them in the documentation. i think this is available in eclipse but not netbeans.

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• Chrome not displaying Class set by jQuery or a Direct CSS property

  - by user186128

  This might seem like a bit of a design/css question but i really need some help. This is the page http://library.permilia.com/Gavin/version2.0_beta/lead.html It works on every browsers imaginable except chrome. By it works i mean it applies a class .error that sets the borders to 1px solid #f00 which is a red border. In chrome for some reason you cannot change it no matter what! Anybody got any ideas?

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• How to add a method in Form class in windows form application in asp.net

  - by bhaveshtarkhala

  Hi Friends ... I want to add a new method in Windows.Forms.Form class.. Please help how to do this if anyone knows.. thanx

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• What's the Comparer<T> class for?

  - by Sir Psycho

  What purpose does the Comparer class serve if the type that you specify needs to implement IComparable? I'm now sure why you would need it.

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• Custom base class for workflow activity , how to declare dependecy property ?

  - by Ajax2020

  Generally we derive custom activity from Activity or CompositeActivity class, i want to have my custom base class for all activities : like public class BusinessActivity : Activity { } then my custom activities will derive from BusinessActivity . The quetions is if i want ErrorMessageProperty and RetryCountProperty as dependency properties then in the BusinessActivity how to declare third param in Register method like public static DependencyProperty RetryCountProperty = DependencyProperty.Register("RetryCount", typeof(int), typeof(**BusinessActivity**)); What will happen if i derive from BusinessActivity class ?

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• Jquery finding firrt element of specific class

  - by Sandeep

  I am using jquery to find a first element having a class "error" applied to it using the below code $('#mainDiv input.error:eq(0)') But the above one working only for input elements only. How to make this one to work for both input and select elements?

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• Interface Vs Abstract Class

  - by Hari kanna

  In OOPS When to use Interface? When to use Abstract class? Real time example plz... Difference not needed...

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• Visual C++ Compiler Option To Dump Class Hierarchy

  - by JavaMan

  Is there any compiler option in MS Visual C++ equivalent to GCC's -fdump-class-hierarchy? i.e. showing the virtual function table layout.

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• C# class to parse JSON result

  - by user285677

  Hi, How should be a c# class to deserialize the folowing JSON string: { "data": [ { "id" : "id0012", "comments": { "data": [ { "id": "123", "from": { "name": "xpto", "id": "5ddd" }, "message": "tttt", "created_time": "2010-01-07T09:16:15+0000" }, { "id": "222", "from": { "name": "wwwww", "id": "343434" }, "message": "3333", "created_time": "2020-07-07T09:30:12+0000" } ], "paging": { "previous": "prevlink", "next": "nextLink" } } } ] } Thanks

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• Unable to load main-class for jar file.

  - by Logan

  I have developed an application using Eclipse IDE. After creating the application I exported the project in jar format. When I am trying to run this jar file, I get the error: Unable to load main class. Please Help.

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• Jump to Documentation for a function/class in Visual Studio

  - by Casebash

  In Eclipse and Xcode it is possible to jump directly to the documentation for a function/class. Does Visual Studio provide this functionality?

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• Getting compilation timestamp of a java class

  - by Alex Kravets

  Is it possible to reliably determine the compilation time stamp of a given class for both java applications running locally and as applets and/or JNLP webapps ?

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• NSTableView not refreshing when calling method from different class

  - by Matt S.

  I have a table view that gets refreshed two different ways. One is through a button and the other is when I call my refresh method, which is the same method that I use for the button, but for some reason, when I hit the button it works, but when I call it through a different class it doesn't. Here's the code that I use to refresh the tableview: Msqv *qv = [Msqv new]; [qv refresh:self]; //refresh is an IBAction that is used by the button

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• Why does compiler complain when I try to convert to a base-class?

  - by John

  class BaseClass { ... }; class SubClass { ... }; class MyApp { SubClass *pObject; BaseClass *getObject() { return pOject; } }; I get a compiler error: error C2440: 'return' : cannot convert from 'SubClass *' to 'BaseClass *' Why doesn't it work, surely you can automatically convert to a base-class without any casting?

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• Instantiating a generic class in Java

  - by ripper234

  I know Java's generics are somewhat inferior to .Net's. I have a generic class Foo<T>, and I really need to instantiate a T in Foo using a parameter-less constructor. How can one work around Java's limitation?

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• What is the default value for C++ class members

  - by leeeroy

  What is the default values for members of a struct and members of a class in c++, and how do these rules differ (e.g. between classes/structs/primitives/etc) ? Are there circumstances where the rules about the default values differs ?

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• Object Class's protected method MemberWiseClone()

  - by Bon_chan

  This might be a dumb question, but I don't get it: I have a class called Card. I want to do a shallow clone using MemberWiseClone(). In Theory Card inherits from Object. So it should be able to use MemberWiseClone(), even if MWC() is protected ?? Am I missing/forgetting something?

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