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by: Jason |
last post by:
Here is an odd issue. I am trying to shed some light on why this is causing
a problem.
I have an ArrayList. I am binding it to a ListBox control with has its Sort
property set to True. If the ArrayList only has one element in it everything
works ok. But as soon as I have more than one element, I get the following
exception when the control loads up: "Cannot modify the Items collection
when the DataSource property is set.".
Anybody...
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by: MikeB |
last post by:
The .NET 1.1 documentation declares that there is a GetEnumerator method
associated with the ListBox.ObjectCollection class.
When I try to implement this as follows:
IEnumerator posControls = ListBox.ObjectCollection.GetEnumerator();
The autocompletion mechanism shows only two methods: Equals() and
ReferenceEquals()
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by: RBCC |
last post by:
I have a form with a listbox and two textboxes. In the listbox I have the make and models of automobiles. and as the user clicks on the make of the car in the listbox I would like to output the make and model in the textboxes, how is this done with an arraylist
John
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by: John Veldthuis |
last post by:
My code works perfectly 100% when adding items to my ArrayList and updating the listbox.
Works perfectly when deleting an item in the ArrayList when it is not the last entry but if it is
the last entry and you select another index it goes boom!!!.
Funny thing is the SelectedIndex Changed routine fires off perfectly and then crash after the return
from this code.
Now looking around the news groups it appears to be a bug in the .net...
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by: andrewcw |
last post by:
Who can explain this ?? : I expect 2 but I get 4 items !
private void button1_Click(object sender, EventArgs e)
{
object bunchOfStuff = { "foo", "fee" };
listBox1.Items.Clear();
System.Windows.Forms.ListBox.ObjectCollection lboxObjCol = new
ListBox.ObjectCollection(listBox1, bunchOfStuff);
listBox1.Items.AddRange(lboxObjCol);
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by: AppleBag |
last post by:
Hello everybody,
I am beginning the .NET learning curve, and I have learned how to load
a listbox with a directory list of files using this code:
If FolderBrowserDialog1.ShowDialog() =
Windows.Forms.DialogResult.OK Then
ListBox1.DataSource =
System.IO.Directory.GetFiles(FolderBrowserDialog1.SelectedPath)
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by: Zytan |
last post by:
In win32 there was a way to 'turn off' a listbox from updating until
you were done adding elements. Is there a way to do this in .NET?
Zytan
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by: markr1000 |
last post by:
I must have looked searched in 500+ places that showed up in Google
searchs, but not one has an example of what I want to do.
I have a Listbox on a User Control because I want to control the
visibility and/or presence of the Listbox and associated label, and I
want to encapsulate some of associated code.
I want to be able to pass the collection of strings that will fill the
Listbox to the User Control and have it pass on the collection...
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by: Anand Ganesh |
last post by:
Hello All,
I want to go through each item in a Listbox collection. How will I do this?
I was looking for ListBoxItem but nothing is available?
Any suggestions please?
Thanks
Anand Ganesh
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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: 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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