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by: 3nc0d3d |
last post by:
I have needed to cast a pointer with different types for get a value.
I have try to use generic, but there are cast exception.
For example the following method:
generic<typename T> void XClass::GetValue(T gValue)
{
int iValue=34234234;
void *vValue=&iValue;
gValue=(T)*vValue;
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by: Tigger |
last post by:
I have an object which could be compared to a DataTable/List which I am
trying to genericify.
I've spent about a day so far in refactoring and in the process gone
through some hoops and hit some dead ends.
I'm posting this to get some feedback on wether I'm going in the right
direction, and at the same time hopefully save others from going
through the process.
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by: Andrew Ducker |
last post by:
I have a collection of classes descending from a single root class
(let's call it RootClass). They all currently have a property of
Logical, of type Logical. However they actually return a subclass of
Logical (LogicalA, LogicalB). I'm currently casting them to the right
type when I retrieve them, but obviously this isn't terribly 'nice'.
I tried converting the class to be generic, and having a type parameter
that affected the type of...
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by: Vincent Finn |
last post by:
Hi,
I am trying to write a generic function and it isn't behaving as expected.
I want to avoid having to write custom convert functions for my enums so
I want to convert to an int and cast to the enum, this wouldn't compile so
I tried a few variations.
The cast fails inside the generic function even though its valid.
The code below is the simplest example of the problem I could think of, even
casting int to int fails.
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by: Steve Richter |
last post by:
in a generic class, can I code the class so that I can call a static
method of the generic class T?
In the ConvertFrom method of the generic TypeConvert class I want to
write, I have a call to the static Parse method of the conversion
class.
if (InValue is string)
return T.Parse((string)InValue);
else
return base.ConvertFrom(context, culture, InValue);
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by: BombDrop |
last post by:
Can any one help I have a method that will return a List to be bound
as a datasource to a combobox see code for population below. I get the
following error when i try to compile
Error 29 Cannot implicitly convert type
'System.Collections.Generic.List<Prsym.ComboPopulation.ComboInfo>' to
'System.Collections.Generic.List<T>
'
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by: JB |
last post by:
Hi All,
I'm pulling my hair over this and could really do with a bit of help.
I'm using various different enums as bit fields and I'd like to create
a set of generic Functions or Subs to manipulate the bitfields.
For instance:
<Flags()_
Enum ActionFlags As Byte
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by: Dave |
last post by:
I've got these declarations:
public delegate void FormDisplayResultsDelegate<Type>(Type
displayResultsValue);
public FormDisplayResultsDelegate<stringdisplayMsgDelegate;
instantiation:
displayMsgDelegate = DisplayStatusMessage;
implementation:
public void DisplayStatusMessage(string statusMessage)
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by: =?Utf-8?B?RXRoYW4gU3RyYXVzcw==?= |
last post by:
Hi,
I have written a generic method which does different things depending on
the type of the parameter. I got it to work, but it seems really inelegant.
Is there a better way to do this?
In the code below, ColumnMap is a simple struct which basically has three
properties, Header (a string), Index (an int), TypeOfData (which is a
DataType which is a local eNum). _Mapping is a local List<ColumnMap>.
public ColumnMap GetMap<T>(T value)
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by: MMAS |
last post by:
Hey everyone --
Curious about some strange behaviour I'm seeing that seems to be
related to my lack of understanding on how generics work in C#. Here's
some simplified code (sorry for strange formatting) to show what my
issue is.
I have a generic abstract class here:
public abstract class MyGenericAbstractClass<Twhere T : MyInterface
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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: 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: 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: 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: 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: 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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