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by: Samer |
last post by:
I'm writing a class that derives from ServiceBase and it says in the
documentation for the constructor of ServiceBase that if you override
the base class constructor, you should explicitly call it in the
constructor of your derived class.
As far as I know a constructor cannot be overridden only overloaded,
is this a mistake or have I been mislead.
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by: TS |
last post by:
i have a class that i'm trying to understand that overrides
BaseApplicationException's methods as follows. What i dont' understand is
that i have never seen the inherit ":" on a method signature, only on a
class declaration.
Can you explain what is going on here. Is it that the implementation of the
method that is overriding the base's method simply uses the base's
implementation all along (if so, why override the method to begin with?)?
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by: Bob Weiner |
last post by:
What is the purpose of hiding intead of overriding a method? I have googled
the question but haven't found anything that makes any sense of it.
In the code below, the only difference is that when the Poodle is upcast to
the Dog (in its wildest dreams) it then says "bow wow" where the bernard
always says "woof" (see code). Basically, it appears that I'm hiding the
poodle's speak method from everything except the poodle.
Why would I...
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by: Jim Heavey |
last post by:
I amd playing around with inheritance a little in VB.Net
If I create a new class which inherits from ListViewItem and I am only
wanting to override the ToString Method. In this situation, If I only
override the "ToString" method, I find that I only have a single
constructor. Do I have to clone all of the constructor methods and then
execute the MyBase.New(....) methods for each of those constructors? If I
am inheriting all methods and...
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by: JohnR |
last post by:
From reading the documentation, this should be a relatively easy thing. I
have an arraylist of custom class instances which I want to search with
an"indexof" where I'm passing an instance if the class where only the
"searched" property has a value. I expected to get the index into the
arraylist where I could then get the entire class instance. However, the
'indexof' is never calling my overloaded, overrides Equals method. Here is
the...
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by: Carl Fenley |
last post by:
I've been programming exclusively in C# for the last few years but am now
working on a project where I am required to write all code in VB.NET.
I'm trying to create a class with multiple overrideable contructor methods.
The problem is that I don't know how to even define a contructor in VB.NET,
let alone inherit the default contructor. Here is what I have so far:
Public Class AppSnippets
Private _instances As Integer
Private...
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by: bryanbabula |
last post by:
I have a question about overriding i was wondering if anyone could
help me with, or even suggesting a better/different way. I have no
idea if this can even be done or not.
I was wondering if there was anyway to force a class to call a base
class's method that it is overriding? Almost the same way you have to
call a base class's constructor if it has arguments.
(example ** assuming the Person class's constructor has (string
FirstName) as...
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by: r035198x |
last post by:
The Object class has five non final methods namely equals, hashCode, toString, clone, and finalize.
These were designed to be overridden according to specific general contracts. Other classes that make use of these methods assume that the methods obey these contracts so it is necessary to ensure that if your classes override these methods, they do so correctly.
In this article I'll take a look at the equals and hashCode methods.
...
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by: l.s.rockfan |
last post by:
Hello,
how do i have to call an inherited, templated class constructor from the
initializer list of the inheriting, non-templated class constructor?
example code:
template<typename T>
class A
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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...
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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: 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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