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by: SammyBar |
last post by:
Hi,
I'm trying to bind a custom collection class to a data grid, following the
guidelines from the article
http://msdn.microsoft.com/msdnmag/issues/05/08/CollectionsandDataBinding/default.aspx.
The problem is the article is in VisualBasic. I already get the collection
to be recognized as a Data Source by the IDE. It populated the DataGrid
correctly from the fields on the items object of the collection, but I can't
get the DataGrid to...
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by: craig |
last post by:
Assume that you would like to create a custom collection class that is:
1. Strongly-typed (only holds Customer objects)
2. Read-only (user cannot add Customer objects)
3. Able to be bound to a winforms datagrid (must implement the IList
interface).
What would be a good way to create this class?
1. The CollectionBase abstract base class can be used, but it is not
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by: JimGreen |
last post by:
I have 2 questions:
1. I have a base class called
class MyBaseObject
{
}
All my classes are derived from MyBaseObject.
I also have a collection dervied from IBindingList and CollectionBase
like so,
class MyCollection : CollectionBase,IBindingList
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by: A Traveler |
last post by:
Hi,
I have a custom collection class i wrote, LineItemsCollection, which is a
strongly typed collection of objects of my LineItem class.
The LineItem class is a simple class with just a couple properties, ProdID,
Description, Quantity and UPC. 3 strings and a long.
The LineItemsCollection class inherits from
System.Collections.Specialized.NameObjectCollectionBase.
It also implements both IEnumerable and IList.
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by: |
last post by:
Trying to learn about manipulating collections of objects, and populating
these objects dynamically from datasources. Could someone post a code sample
that shows the following:
Instantiating a collection object -- say, a dictionary.
Populating that collection object with custom objects, say, Person. What I
really want to see is how to populate the properties of those Person objects
from a datasource: instantiate one Person, fill...
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by: Ivan Weiss |
last post by:
Hi. This is a question I have posted before and have never figured out
a working result. I have been recommended to read some books which I
did which still have not answered my question.
I am writing an application for my office for project management. I
have several classes, one for an employee object, a vendor object, and a
customer object. I want to make an employees, vendors, and customers
object which will contain all or several...
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by: Michael |
last post by:
Dear all ..
If I want to use develop a user control and declare a public property which
the type is System.Windows.Forms.GridTableStylesCollection
For example :
Public Class LookAndView
Inherits System.Windows.Forms.UserControl
Private _Collection As GridTableStylesCollection
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by: Arthur Dent |
last post by:
How do you sort a generic collection derived from
System.Collections.ObjectModel.Collection?
Thanks in advance,
- Arthur Dent
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by: Øyvind Isaksen |
last post by:
I try to make my own ArticleAttribute object and ArticleAttributeCollection,
and add data to this Collection. It almost works, but the problem is that
each time I add an ArticleAttribute to my Collection, it seems like it
overwrites the other ArticleAttributes. When bind the
ArticleAttributeCollection to a datagrid, all articleattributes are the
same.
This is what my datagrid dispays:
ID Content
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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: 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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