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by: Oleg Leikin |
last post by:
Hi Dear .NET experts !
Is it safe to call ListBox.Items.Add() from different
threads without using "lock" ?
Or should I use "lock" as I used CriticalSection in my
MFC application ?
Thanks in advance !!!
Oleg
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by: Patty O'Dors |
last post by:
Hi
I have some code to create an ownerdrawn listbox (derived), and when I add
an item to it, the bold text of the first item (the title, 'Collections and
Maturities') mysteriously seems to get bunched up at the right, i.e. squashed
up! any idea why?
The main bit of the code is as such
// (in progressReporter.cs)
protected struct LBRow //a row of the listbox, whether it be the title or a
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by: Grant Schenck |
last post by:
Hello,
I have a ListBox control on a form.
I add members of a class to the Items collection. They show up and I can
select them. The text shown is from my classes ToString override.
Now, later on I need to update this item. I find it in the Items collection
and update a member used by the ToString member function. However, the text
shown for the item in the ListBox does not change.
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by: yamne |
last post by:
I have a problem.
When I click in edit datagrid button I show two listbox and two button.
I use two button to move data between two listbox.
My problem is that I can't call the listbox in the button_click function
because the only way to find the listbox is:
(listbox)e.item.findcontrol
What s the solution to this problem?
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by: Dave |
last post by:
Hi all,
After unsuccessfully trying to make my own dual listbox control out of
arraylists, I decided to look for a 3rd party control. I've looked for over
a week now and can't find anything but ASP.Net stuff when I need a Windows
Form control. I've seen dual listbox populators in countless Windows
applications, and have seen them run very fast, so I figured this would be
extremely popular.
Here's how it should work:
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by: Ali Chambers |
last post by:
Hi,
I have created a listbox called "dtlist1" on my VB.NET form. I call a
procedure as follows:
Private Sub openfile(flname As String)
dtlist1.Items.Clear()
etc..
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by: rn5a |
last post by:
Can the items in a ListBox be sorted by the name of the items?
The ListBox actually lists all directories & files existing in a
directory on the server. Note that all the directories should be listed
first followed by the files.
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by: Sunray |
last post by:
I have a form called the sales form and i have 2 sets of listboxes
So what happens is. i add items form the bottom set of list boxes which are bound to a data base to the top set of list boxes which are not bound, I select from the bottom set and add to the top set which works fine, but now i decide to remove an item from the top set.
when i tried to use a remove item code it worked fine, it did delete the item form the list but it added...
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by: Academia |
last post by:
(If you've seen this in the drawing NG, sorry. I inadvertently sent it
there.)
I have a listbox populated with Objects.
The Class has a String field that ToString returns.
I assume that is what the ListBox uses for its display. Correct?
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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: 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: 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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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