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by: Tony Johansson |
last post by:
Hello experts!
I know it's easy to override when you have inheritance.
But if you instead use object composition having a pointer to a class X.
If you want to override when having this object composition how is that
done.
Give some easy example if you have some.
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by: Thomas |
last post by:
Hi,
I implemented a composite pattern which should be serializable to xml.
After spending some time in the newsgroups, i finally managed
serializing, even with utf-8 instead of utf-16, which causes ie
problems. But when deserializing the xml into the object structure,
the following exception is beeing thrown:
There is an error in XML document (3, 701).
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by: n_o_s_p_a__m |
last post by:
Can't compile. Does this mean that all functions that throw exceptions
must be of return type void?
examples:
// won't compile: "not all code paths return a value"
public override int Run() {
throw new Exception("exception thrown");
}
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by: Noah Coad [MVP .NET/C#] |
last post by:
How do you make a member of a class mandatory to override with a _new_
definition? For example, when inheriting from
System.Collections.CollectionBase, you are required to implement certain
methods, such as public void Add(MyClass c).
How can I enforce the same behavior (of requiring to implement a member with
a new return type in an inherited class) in the master class (similar to the
CollectionBase)?
I have a class called...
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by: Jaikumar |
last post by:
Hi,
1) I have created one windows application, In the main form ( form1) i have added one usercontrol (usercontrol1), In that user control i am drawing one image.
2) In the UserControl1 i am showing one transparent form (form3) when ever user preseed left mouse button.
3) The form3 has one transparent user control (usercontrol2) that paints circles. That measn the circles will show on top the usercontrol1 image.
4) The form3 border style...
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by: Rigs |
last post by:
Hi,
I have a textbox with a Custom Validator that utilizes the OnServerValidate
method for that textbox. This works fine, however the method only executes
when data exists in that textbox after the Submit button is clicked. If I
click the submit button and no data exists in the textbox, the
OnServerValidate method does not fire.
I'd like the OnServerValidate method to either execute every time the Submit
button is clicked. I am...
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by: bdeviled |
last post by:
I am deploying to a web environment that uses load balancing and to insure
that sessions persist across servers, the environment uses SQL to manage
sessions. The machine.config file determines how all applications will use
sessions and to insure that all application use this method, the session
properties cannot be overriden.
Within the sessionstate tags, the webadmin (upon my request)r emoved the
property for timeout, hoping that...
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by: Kenneth Baltrinic |
last post by:
When one overrides the Equals() method of an object, one is supposed to
override GetHashCode() as well and this makes good sense. But I have seen
lots of people who do this and do not override the == and != opperators. Am
I missing something or when would one want to have different implementations
for Equals and ==?
--Ken
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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: 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.
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Your website is...
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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: 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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