Why use partial classes?
I am new to partial classes and was wondering if someone could give me a "big picture" of why I would use them and what advantage I would gain in the process. Thx. ...
class
Prevent creating new attributes outside __init__
I want to be able to create a class (in Python) that once initialized with __init__, does not accept new attributes, but accepts modifications of existing attributes. There's several hack-ish ways I can see to do this, for example having a __setattr__ method such as def __setattr__(self, attribute, value): if not attribute in self._...
Java create dynamic class
I have 2 questions that I was hoping someone could help me with. Is there a way to create a class on the fly with android/java and also add variables to the class? For example I would like to do something like this: Class c = new Class(); c.name = 'testing'; c.count = 0; c.getName = new function(){ return c.name; } Just wondering i...
How do I make a member of a class a hash in Perl?
I am trying to write a package in perl. I need one of the members to be a hash. However, when I reference and run the program, I cannot get it to work with the usual syntax. If I have: sub new { my $class = shift; my $self = { textfile => shift, placeholders => () }; bless $self, $class; return $self; } Is there any way of mak...
jquery hide objects if object class doesn't contain a value
Hi all, The title might be a bit confusing, basically I'm trying to write up a script which will grab the selected values from a drop down form, and hide li's if its class does not contain the values from the drop down form.. if that makes sense?? Each li has multiple classes.. Here's what I've got so far (sorry if it's crude): FORM:...
How can I get name of an object in Perl?
Say I make an object as follows: $object22=new somepackage("stuff"); and later I want to run a subroutine like this: $object22->somesubroutine(); I would like to capture the string "object22" in the subroutine "somesubroutine." I tried: $self=@_; print $self; but that just gave me somepackage=HASH(somehexnumber) Please let me k...
LXML library in PHP ?
Hi, Is anyone find the class for LXML in PHP. I have no idea about python. If anyone find the class or library or tutorials, please share with me Thanks, Nithish ...
Unnamed classes
Motivated by the discussion The grammar for C++ classes is defined as class-key identifier *[opt]* base-clause *[opt]* (Italics are mine) This to me means that the class name is option and we can have unnamed classes in C++. So, is the following well-formed? struct X{ struct{ int x; int y; }; }; int main(){} ...
CKEditor add CSS styling to Preview and Editor
Hello! Is it possible to add CSS to style the Editor text as well as the Preview? The CMS has a different set of CSS files from the public part of the website and I want the editor to try (at least) and reflect the way it would look in the site. For example, all tags with a class of .floatLeft{float:left;margin:0 10px 10px 0;} I want...
How can I determine what removes CSS classes from an element on initial page load?
I have a page that contains an element (a TextBox) that has two CSS classes assigned on page load, but once the page has rendered and the JavaScript has run, the class attribute of the input element is empty. I know the element originally had the classes defined because good old IE6 shows me the original source when I choose to view sou...
C# access DataSet data from another class
Hello, how I can access a DataSet and it's TablesData(s) to add/delete/edit rows from another class I have a winform and I added a DataGridView dataGridView1 then I added a DataSet dataSet1 then I bind them with BindingSource all the data will be saved in an XML all work OK, I made few test projects all work fine but when I try to ...
Change css class with JQuery \ Watermark
My application is trying to show a text watermark in a textbox on a form, but I don't want to touch the actual value of the box. So, I'm trying to use a background image with the watermark text, using classes; .watermarkon input { background-image: url('../forms/images/TypeNameWatermark.png'); background-repeat:no...
Why would you mask a base class member?
I have just learned how to mask a base class member (using new) but am missing the point as to why I would want to do that. Does masking provide us with a certain level of protection as is the case in using encapsulation? Please advise. ...
python: confusion with local class name
I have the following code: def f(): class XYZ: # ... cls = type('XXX', (XYZ, ), {}) # ... return cls I am now using it as follows: C1 = f() C2 = f() and it seems to work fine: C1 is C2 returns False, there's no conflict between the class attributes of the two classes, etc. Question 1 Why is that? How is it...
Type casting (from derived class)
Hello, I want to make chain-calling like jquery-way in c++. The sample: $('#obj').getParent().remove(); So, as I understand, each method of the class should return the pointer to himself (this). Everything is okay until I call base-derived methods. The code: class Base { Base *base1() { return this; } Base *base2() { return th...
Accessing a class's properties two ways.
I'm stuck on creating a class architecture to do this: I have very many (About 78) types of block. The level for the game is made of these blocks. In the level's ByteArray, there are simply numbers, denoting the type of block. So for collision handling, I can just retrieve the number at the wanted position and get that block's propertie...
vb.net class organization
I've been struggling to get my mind around classes. Even after reading several websites and books, I still don't feel like I really 'get it'. The application that I'm working on has a sub that will control a few different pieces of test equipment over a USB to GPIB interface. So, I have: Laptop USB - GPIB Interface Power ...
How to make a hash of objects in perl
I would like to be able to store objects in a hash structure so I can work with the name of the object as a variable. Could someone help me make a sub new{ ... } routine that creates a new object as member of a hash? I am not exactly sure how to go about doing this or how to refer to and/or use the object when it is stored like this. I ...
Accessing an object from a different class - Design
I have three classes, TImageProcessingEngine, TImage and TProcessing TImageProcessingEngine is the one which i am using to expose all my methods to the world. TImage is the one i plan to use generic image read and image write functions. TProcessing contains methods that will perform imaging operations. class TImageProcessingEngine {...
Let us build a common utility class for asp.net together
Hi, Which method would you like to place in tyour common class in asp.net application? A common function which you use in almost all your asp.net project question. ...