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by: Sundown |
last post by:
I am trying to create a custom button control for the web that, when clicked,
disables and changes the text of itself and a bunch of other controls (in the
collection). My goal is to end up with a button that prevents the user from
submitting a form back multiple times and also prevents them from submitting
the form and then clicking something else before the postback can finish
processing.
What I have is a working button that disables...
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by: Edward Diener |
last post by:
In C++ an overridden virtual function in a derived class must have the exact
same signature of the function which is overridden in the base class, except
for the return type which may return a pointer or reference to a derived
type of the base class's return type.
In .NET the overridden virtual function is similar, but an actual parameter
of the function can be a derived reference from the base class's reference
also.
This dichotomy...
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by: Craig Buchanan |
last post by:
If I have two custom vb.net classes, where 80% of the properties are alike
and there is one method with a matching signature, can i cast between one
and the other? do i need to have each class implement a common interface?
thanks,
craig buchanan
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by: John-Arne Lillebø |
last post by:
Hi.
I run into this problem and i could need some help to solve it.
The project is an ASP.NET Web project.
Including code sample of the problem.
Any idea what is causing the error message ?
John-Arne Lillebø
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by: Chet Cromer |
last post by:
I am creating a set of base classes and sub classes to use throughout a
program I'm developing. The base class represents a generic "lookup
table" from my database that contains lists of things like
manufacturers, makes, modes, etc. of cars. I have created a generic
"datacollection" class and a generic "dataobject" class to represent the
table and the rows within that table as a collection of objects with
generic properties for...
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by: mr.peteryu |
last post by:
Hi,
Can someone explain the idea behind casting to an interface?
For example:
-> I have an IInterface that contains a Read() method.
-> I have an object "obj" that implements IInterface.
Why would someone do the following and what does it mean?
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by: dcew |
last post by:
Here's what I'm trying to understand; how can you store a generic collection
in a variable/field?
If I have an abstract generic collection class as follows...
public abstract class BizCollection<T> : Collection<T> where T : BizBase
{
// Collection Implementation
override void InsertItem(int index, T item)
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by: Pieter |
last post by:
Hi,
I'm using NHibernate 1.2 (CR1), and I'm using a custom list (inherited from
BindingList(Of T) ) for all my lists.
The NHibernate documentation told me that I had to implement
IUserCollectionType to my custom list, which I did. But I still get an error
when trying to read the object: "
{"Unable to cast object of type
'NHibernate.Collection.Generic.PersistentGenericBag`1' to
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by: =?Utf-8?B?Sm9lbCBNZXJr?= |
last post by:
I have created a custom class with both value type members and reference type
members. I then have another custom class which inherits from a generic list
of my first class. This custom listneeds to support cloning:
Public Class RefClass
Public tcp As TcpClient
Public name As String
End Class
Public Class RefClassList
Inherits List(Of RefClass)
Implements ICloneable
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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: 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: 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: 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: 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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