Search Results

Search found 10547 results on 422 pages for 'extending classes'.

Page 215/422 | < Previous Page | 211 212 213 214 215 216 217 218 219 220 221 222  | Next Page >

• How to "import" a static class in C# ?

  - by programmernovice

  I have created a public static class utils.cs I want to use it in other classes without prefixing method with utils, what's the syntax to do this ?

  Read the article

• How to get attributes from parent?

  - by bribon

  Hi all, Let's say we have these classes: class Foo(object): _bar = "" def __init__(self): self.bar = "hello" def getBar(self): return self._bar def setBar(self, bar): self._bar = bar def getAttributes(self): for attr in self.__dict__: print attr bar = property(getBar, setBar) class Child(Foo): def __init__(self): super(Child, self).__init__() self.a = "" self.b = "" if I do something like: child = Child() child.getAttributes() I get all the attributes from parent and child. How could I get the attributes only from the parent? Thanks in advance!

  Read the article

• Ruby: Allowing a module to have settings

  - by JP

  If I'm building a library in ruby, what's the best way to allow users of the library to set module-wide settings that will be available to all sub classes etc of the library? A good example would be if I'm writing a library for posting to a webservice: TheService::File.upload("myfile.txt") # Uploads anonymously TheService::Settings.login("myuser","mypass") # Or any other similar way of doing this TheService::File.upload("myfile.txt") # Uploads as 'myuser' The idea would be that unless TheService::Settings.logout is called then all TheService operations would be conducted under myuser's account. Any ideas?

  Read the article

• accessing objective c++ methods

  - by Sreelal

  Hi, I am developing an application for iPhone.I am using some objective c++ classes with .h and .mm extensions.My problem is that when i am trying to access a method in .mm file from .m file i am geting a warning that "No '-methodname' found".how can i resolve this warnings Thanks in advance

  Read the article

• How to add a method to an existing class in PHP?

  - by sombe

  I'm using WordPress as a CMS, and I want to extend one of its classes without having to inherit from another class; i.e. I simply want to "add" more methods to that class: class A { function do_a() { echo 'a'; } } then: function insert_this_function_into_class_A() { echo 'b'; } (some way of inserting the latter into A class) and: A::insert_this_function_into_class_A(); # b Is this even possible in tenacious PHP?

  Read the article

• When does the @ become usefull?

  - by DaNieL

  As you know, the @ characters before a php istruction suppress every eventual warning, error or notice from being raised. Personally, i dont like this tecnique, becose i prefer to handle those errors, and in a real life, the error must no happen or have to be managed. By the way, i find this tecnique to be applied in many scripts (cms plugins, open-source classes). So, could the @ really be usefull (in this case, an example would be appreciated), or is just for lazy developers?

  Read the article

• Dynamically detecting supported configuration/profile/JSRs in Java ME

  - by Casebash

  How do I dynamically detect what profile/configuration is being used and what JSRs are supported? I know that you can dynamically detect supported classes, but I would be surprised if picking a random class that should only be in a particular profile/configuration were the proper way of doing this.

  Read the article

• 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.

  Read the article

• c# Can I use reflection to inspect the code in a method?

  - by koraytaylan

  i'm playing around with c# reflection api. i can easily load type info of classes, methods etc. in an assembly. now i wonder how can i load and read the code inside a method?

  Read the article

• Data Structures using C or C++?

  - by user362439

  What are the advantages of using C++ based Classes/Objects over using legacy C Structures for managing standard Data Structures like Linked List, Stack, Tree, Queue ..etc? Let me know if the question is not clear.

  Read the article

• Grails problem with nullable contraint in domain class

  - by xain

  Hi, I'm having the following problem with grails' 1.2.1 domain classes: When I set a constraint attr(nullable:true) and attr is int or bool, this condition isn't reflected in the db (postgresql 8.4). However, if attr is a String, the DB is consistent with the situation. Any hints ? Thanks

  Read the article

• When I renamed a class I am getting a deserialization error. How to fix it?

  - by Fred F.

  I renamed the class classBattle to Game and not I get "Unable to load type battle.classBattle+udtCartesian required for deserialization." This is the line of code MapSize = (Game.udtCartesian)formatter.Deserialize(fs); How do I fix this? Does this mean I cannot rename classes?

  Read the article

• out of memory error , my app's fault?

  - by arnold

  hello all, i have a aplication on the android market , in wich exceptions and errors are catched and sent to me by acra. But i receive quite a lot out of memory errors.. In different kind of classes...some my app, some general java.. Does this always mean there is a problem in my app, or can it also be the phone ran out of memory due to a other process? Will users also get a fc dialog ? thnks

  Read the article

• How to : Static variable in inherited class

  - by nXqd

  class B { public: static int a; } class C:B { } I want to use a variable through any inherited classes but it has problem when I declare a. B::B() { a=1; } Do I do it right ? Thanks for reading and waiting for your comments.

  Read the article

• Select all entities of exact class, but not derived from it using NHibernate Criteria API

  - by SergeanT

  I have two classes: Cat and DomesticCat, that extends Cat. I want to select all Cats, but no oneDomesticCat. How to do it using NHibernate criteria API?

  Read the article

• jquery cousin element

  - by salmane

  I am trying to locate the closest element that contains a class....this is in an effort to find the "cousin" of the current element that i have.. the following did not work : $('myelement').closest ('*:has(.class1)').find('class_cousin') I am using the * in closest since i am not sure what type element is the one i am looking for nor do I know if it has any classes or ID ( i am trying to keep it general for a plugin) any idea how I could do it? thank you

  Read the article

• Why is the new Tuple type in .Net 4.0 a reference type (class) and not a value type (struct)

  - by Bent Rasmussen

  Does anyone know the answer and/or have an oppinion about it? Since tuples would normally not be very large I would assume it would make more sense to use structs than classes for these. What say you?

  Read the article

• How to manage and make look of complex data <table> identical in all browser?

  - by metal-gear-solid

  What are helpful CSS properties which can be helpful for table? I have to make so many complex tables which have different type of colors in columns, thead, borders, padding, alternate row and column colors etc. I want to use as less as possible of css classes. How to make complex tables design with combination of as much as possible of HTML tags and CSS properties? and should look identical in all browsers.

  Read the article

• Can I use an ORM (as Subsonic) to work with an API?

  - by Gabotron

  Hello ... I´m new to ORMs and I have a new project I´ll do in .Net MVC. In the Model Layer I´ll create my classes: Videos and I´ll work with APIs as a DataLayer (BrightCove & YouTube APIs). So, I dont have a Relational Database as a Data Layer. Is it possible to work with an ORM (as Subsonic)? Thanks!

  Read the article

• [boost::filesystem] performance: is it better to read all files once, or use b::fs functions over an

  - by rubenvb

  I'm conflicted between a "read once, use memory+pointers to files" and a "read when necessary" approach. The latter is of course much easier (no additional classes needed to store the whole dir structure), but IMO it is slower? A little clarification: I'm writing a simple build system, that read a project file, checks if all files are present, and runs some compile steps. The file tree is static, so the first option doesn't need to be very dynamic and only needs to be built once every time the program is run. Thanks

  Read the article

• copy an attribute of a property from one instance to another instance (of a different type ) at runt

  - by Omu

  let's say I have 2 classes like this: public class Foo { [Required] public string Name {get;set;} } public class Bar { // put here [Required] at run-time public string Name {get;set;} } var foo = new Foo(); var bar = new Bar(); //copy the required from foo to bar is it possible to copy the attributes from foo to bar at run-time ?

  Read the article

• Binding FontStyles and FontWeights to WPF ComboBox

  - by Haemoglobin

  I was just wondering if it would be possible to bind the list of available FontStyles and FontWeights to a ComboBox? For example, to bind the list of fonts to a combobox you can use: FontComboBox.ItemsSource = Fonts.SystemFontFamilies; Can I also have something for : FontStyleComboBox.ItemsSource = .... FontWeightComboBox.ItemsSource = .... ? Would it require reflection on the System.Windows.FontWeights and System.Windows.FontStyles classes or would there be an easier way than that? Thanks

  Read the article

• Why do I have to pay for something that I'm not using?

  - by Knowing me knowing you

  Guys just finished reading one of my college books about threads in Java and I was informed that lock - what ever it is, is in Object class. So it looks like even though I'm not using threaded classes my objects will be heavier because of that? Don't you think that it's a bit annoying and unfair to expect from anyone to pay for something s/he have not intention of using? Thanks

  Read the article

• Subsonic class has reference to HttpContext.Current.User in a Windows app

  - by Darkwater23

  Hello! I'm using SubSonic 2.1. I ran it against a database and it created all the files seemingly correctly. However, when I went to use one of the classes, the app wouldn't built. I'm making a Windows application, but in the SubSonic file there's a reference to HttpContext.Current.User. Does anyone know why that would happen?

  Read the article

• C++ lib RTTI in C# application

  - by Rushi

  I am developing game editor in C# that uses c++ lib files. I want RTTI for C++ classes in C#. Is it possible to get RTTI of C++ class in C#? If yes how?

  Read the article

< Previous Page | 211 212 213 214 215 216 217 218 219 220 221 222  | Next Page >