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by: JPRoot |
last post by:
Hi
I use the following syntax to have events inherited from base to child classes which works nicely (virtual and override keyword on events). But I am wondering if it is a "supported" way of using events since I never saw it used anywhere in MSDN documentation/samples?! Or it will just break when I upgrade to .NET Framework 2.x in the coming years
namespace MyNamespac
public delegate void MyDel()
public class MyBase
public virtual...
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by: bhavin |
last post by:
Hi,
Can someone point me to some good best practices kind of documentation on
use of events compared to method overriding.
Ex. In Windows Forms when should i have an event handler for Paint, and when
should i override OnPaint?
I have to implement added functionality in a child class, and am in two
minds .. to have the parent fire an event, or make the method virtual and
override in the child. Am hoping some reading with description of...
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by: Keith Smith |
last post by:
Could some one help me a little? I am trying to understand when/where you
would ever want to use "protected override..." code such as this. How is
this any different from creating a SelectedTextChanged type event?
This is an example I found on the web...
protected override void OnTextChanged(System.EventArgs e)
{
try
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by: John Salerno |
last post by:
Hi all. I have a question about virtual and override methods. Please
forgive the elementary nature!
First off, let me quote Programming in the Key of C#: "Any virtual
method overridden with 'override' remains a virtual method for further
descendent classes."
Now here's my question: Let's say you have base class A, and
subclasses B and C. Class A contains a virtual method, and B contains
an override method. If C didn't have an...
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by: Syed Zaidi via .NET 247 |
last post by:
I am working on a small project in which i want to develop acustom toolbar skeleton for handling database navigation. I havecreated a usercontrol consist of a toolbar inherits fromusercontrol and winform holding that control. First I want toaccess the Click functionality of each toolbar button(usercontrol) in my winform which holding the usercontrol; secondlywants to override the methods of usercontrol in winformaccordingly to the click event of...
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by: Syed Zaidi |
last post by:
Hello All
I am a newbie in VB.NET and wanting to create a toolbar(User Control) for Database Navigation. What exactly I want is to have a user control which is inherited from the system.windows.forms. usercontrol and contain a toolbar which have buttons for navigating records. And the client Windows Form which owns that control must overrides the navigation methods of user control. Forexample to add some custom functionality for moving to first...
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by: Rob |
last post by:
I've constructed a user control inherited from ListView so I can handle and
respond to scrolling events (to keep 2 listviews scrolling in sync).
My user control includes an Overrides of WndProc (I've attached the code at
the end of this mail). Is it possible to 'disable' this override until I need
it - it's just when I populate the ListViews this sub is called repeatadly.
What I'd like to do is populate the listviews and then 'enable'...
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by: Allan Ebdrup |
last post by:
We're pretty new to ASP.Net 2.0 and we're having a discussion about best
practice when developing custom server web controls.
I can see that in for example the Wizard control the table contained within
is a control and all the children are controls.
That seems to be a good practice to me, use controls when possible.
On the other hand one of the developers here wants to override the Render
methods and create child tables with strings and a...
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by: JDeats |
last post by:
I need to be able to detect when the user clicks on the browser
control area. The control offers no Mouse events whatsoever. I have
tried to resort to override WndProc on the control, I have a break
point set where indicated in the code below which never gets called.
Any alternative methods or suggestions on why this isn't working?
protected override void WndProc(ref System.Windows.Forms.Message
m)
{
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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: 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: 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: 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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