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by: ahaideb |
last post by:
I have a table (relation) in my database:
---------------
| parent | child |
---------------
| 1 | 2 |
| 1 | 3 |
| 2 | 4 |
| 2 | 5 |
| 3 | 6 |
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by: Suzanne Vogel |
last post by:
Hi,
Given: I have a class with protected or private data members, some of
them without accessor methods. It's someone else's class, so I can't
change it. (eg, I can't add accessor methods to the parent class, and I
can't make some "helper" class a friend of the parent class to help in
accessing the data.)
Problem: I want to derive a class that has a copy constructor that
properly copies those data members.
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by: David Sobey |
last post by:
hi
Here's some code:
void SomeFunc(childClass arg);
....
parentClass a;
a=new childClass();
SomeFunc(a);
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by: jon wayne |
last post by:
OK!
I had this nagging doubt
Consider (without worrying abt access specifiers)
class Kid : public Parent{...};
Parent::someFunc()
{
Kid k;
}
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by: Steve Jorgensen |
last post by:
Yup, Steve's full of tips, but hey, it makes him feel important, right?
Ok, here goes. I've been trying to improve encapsulation by putting code
in the same object as the stuff it affects, so I rarely refer to a subform
ir parent form's controls or records from the other form. Instead, I call
a procedure in that form that does the job.
That's all fine and good, and nothing at all revolutionary, but it leaves
one with an annoying...
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by: Karthick Kumar |
last post by:
Hi,
I need to create a simple parent/child hierarchical menu. I have alread
used the Treeview control but my requirement is slightly different than
the Treeview control. I already have the kind of menu I am talking
about, written in Classic ASP, but I need to write the entire menu thing
in Asp.Net using CSharp.
I have a Sql table which has large number of menu items with problemId
and parentId, through which I am trying to create and...
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by: Danny Tuppeny |
last post by:
Hi all,
I've been trying to write some classes, so when I have a parent-child
relationship, such as with Folders in my application, I don't have to
remember to add a parent reference, as well as adding to the child
collection, eg:
parent.Children.Add(child);
child.Parent = parent;
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by: Eddie |
last post by:
If FormMain = MDI parent, FormSub = Child parent,
I execute FormSub from the menu like this way.
FormSub^ sub = gcnew FormSub;
sub->MdiParent = this;
sub->Show();
This can generate child form sub in FormMain.
In th FormMain, there is status bar label named statusBar;
I'd like to add code in the sub form that can access statusBar of parent
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by: Yuk Tang |
last post by:
Leading on from a recent topic, "How does child class access parent's
variables", I would like to ask, what's the most elegant way of
changing a parent/grandparent/great-grandparent's property?
The class Nest has a subclass SubNest. Within SubNest I want to work
with Title. I think if I can pass Title ByRef to the children and
grandchildren, it would work, but VB doesn't do so by default, and
indeed warns me against it: "Reference to a...
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by: Sashi |
last post by:
class parent{
Parent(){};
~Parent(){};
}
Child: public Parent{
Child(){};
~Child(){};
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
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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: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
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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: 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: 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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