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by: Lore Leuneog |
last post by:
Hi.
You can add new delegates for an event with += and you can remove delegates
from an event by using: -= but is there a way (method) to list all delegates
added to one event???
Sincerely
Greetings
Lore
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by: Dave L |
last post by:
I just upgraded from VS .NET 2002 to 2003. Everything built okay, but
strange bugs started appearing.
Apparently there is a bug in the managed C++ compiler in regards to handling
of static __events. In short, every new instance of the class clears all
existing listening registered delegates. It should, of course, preserve all
delegates since its static, but it does not according to this:
"The real problem is the instance constructor...
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by: Tim |
last post by:
There are a set of clients who need to be notified of certain events. I have
used events and delegates (publisher-Subscriber model) for the
notification mechanism. All the clients register with the event publisher
and subscribe for the events that they are interested in. When a certain
event happens, the subscribers are notified about it.
I want the clients to return a value after their callback method is called.
If any of the client...
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by: Burkhard |
last post by:
Hi,
I am new to C# (with long year experience in C++) and I am a bit confused by
the language construct of events. What is it I can do with events that I
cannot do with delegates? At the moment it seems to me that Microsoft has
developed similar functionality via two keywords. I do understand that an
event offers better encapsulation as the underlying delegate is private, but
is that all ?
--
Regards
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by: renjini |
last post by:
I am a starter in C# ...
I will present my problem :
I am wrapping a C dll in C#. The C dll exports a function which takes a
structure MYSTRUCT holding 2 function pointers(callback functions).
struct MYSTRUCT
{
ontest1 t1;
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by: renjini |
last post by:
I am a starter in C# ...
I will present my problem :
I am wrapping a C dll in C#. The C dll exports a function which takes a
structure MYSTRUCT holding 2 function pointers(callback functions).
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by: CB |
last post by:
When designing an object, is there a best practice for how to allow the
user of the object to tell the object to remove itself from any
delegates / events it has registered with?
For example.. say we have a static settings class, and it has some
OnChange event. The object I am writing will add a method to the
settings OnChange event in its constructor. Obviously, at some point,
the method needs to be removed from the event so the new...
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by: raylopez99 |
last post by:
They usually don't teach you in most textbooks I've seen that
delegates can be used to call class methods from classes that are
'unaware' of the delegate, so long as the class has the same signature
for the method (i.e., as below, int Square (int)).
Here is an example to show that feature. Note class "UnAwareClass"
has its methods Square and Cuber called by a class DelegateClass.
This is because these methods in UnAwareClass have the...
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by: samadams_2006 |
last post by:
Hello,
I'm trying to figure out why delegates are such a great thing. For
example, I came across the following line of code:
"This ability to refer to a method as a parameter makes delegates
ideal for defining callback methods. For example, a sort algorithm
could be passed a reference to the method that compares two objects.
Separating the comparison code allows the algorithm to be written in a
more general way."
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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...
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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: 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: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
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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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