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by: Axel Straschil |
last post by:
Hello!
Im working with new (object) classes and normaly call init of ther
motherclass with callin super(...), workes fine.
No, I've got a case with multiple inherance and want to ask if this is
the right and common case to call init:
class Mother(object):
def __init__(self, param_mother): print 'Mother'
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by: Peter Hamilton |
last post by:
I am trying to implement inheritance but I am having a difficult time with some concepts.
What I am trying to do is have a Child object inherit from the Parent, and when you set a property value at the Parent level, I want all of the children to see this change. Likewise, when I set a Parent's property value in the child object, both the parent and all of the children see the change.
Maybe what I am trying to do is not "inheritance" after...
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by: Ben Blank |
last post by:
I'm writing a family of classes which all inherit most of their methods and
code (including constructors) from a single base class. When attempting to
instance one of the derived classes using parameters, I get CS1501 (no method
with X arguments). Here's a simplified example which mimics the
circumstances:
namespace InheritError {
// Random base class.
public class A {
protected int i;
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by: Andrew Ducker |
last post by:
Let's say I have a root class called RootBusinessService
and I then want to have 25 business service classes based off of it.
And each class has a property that's shared between all instances of it
- called 'State'. I therefore want all of them to have a static
property State.
However, I can't declare this static property in RootBusinessService -
because if I do, the subclasses will all point to that single property.
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by: VR |
last post by:
Hi, I read about Master Pages in ASP.Net 2.0 and after implementing some
WinForms Visual Inheritance I tryed it with WebForms (let's say .aspx pages,
my MasterPage does not have a form tag itself so, cannot be called a WebForm
itself, the child pages will implement forms).
I created a Master.aspx page and removed all HTML from it, added some code
to the .aspx.vb file to add controls to my page. Then I created a Child.aspx
and changed the...
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by: Mark |
last post by:
why doesn't .NET support multiple inheritance?
I think it's so silly!
Cheers,
Mark
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by: Julius Fuchs |
last post by:
Hi,
if I create a Person, a Vehicle is created; that's fine.
The problem is that if I create a Child the constuctor of Person is called
before and a Vehicle is created then a Bike is created and the variable is
overwritten. How can I prevent this?
class Person
{
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by: mmcloughlin |
last post by:
I'm learning about objects and am trying to figure out how basic
inheritance works. I've got into the habit of explicitly setting the
prototype object with an object literal as it seems to make the
creation of a class easier to read/understand.
Anyway it seems to break the inheritance chain in the following code
and I don't know why.
window.onload = function() {
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by: Ook |
last post by:
The following code compiles and runs. In my overloaded operator<<, I
call Parent.stuff. I would expect it to call Child.stuff, since Child
is the child class, but it does not. What am I missing, and how can I
get it to call Child.stuff. Eventually I'll have different child
classes, and I need it to call stuff() from the associated child
class, not Parent.stuff.
#include <iostream>
#include <ostream>
#include <string>
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by: johnsonlau |
last post by:
When a class derives from a class,
You can use a pointer to the parent class to delete the instance of
child
only when a virtual destructor declared in the parent.
class Parent
{
virtual ~Parent(); // virtual destructor
}
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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