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by: Steph. |
last post by:
I use a ListView in a form to display Data from an SQL db.
My problem is that I can fill the listview in less than a second when I show the form AFTER filling the listview, but I take 35 seconds if I show the form BEFORE filling the listview !!!
Yes I call ListView's BeginUpdate()/EndUpdate() methods, I tried with hiding the ListView before filling it, I tried Suspend/resume Layout,. nothing works, I still have to wait 35...
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by: Wiktor Zychla |
last post by:
today we've found a critical issue regarding the ListView from
Windows.Forms. it was confirmed on several machines with Win2K and XP.
here's the problem: create a ListView with about 50000 rows. now use task
manager to see the GDI usage of the process. everything seems normal.
now catch the ListView's scroller and start to move it downwards. you have
to hold the constant speed so that the ListView is constantly repainted.
look at the...
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by: rallard |
last post by:
After the following subroutine executes, my listview shows a scroll bar on the right, but it is otherwise blank. I've checked for things like locked=false, visable=true, font color same as background, but I don't see anything that should be hiding the contents. I've inserted various msgbox lines to display listview1.Items.Count, and these show that the listview does have data in it. I'm lost
The code (it's not very long)
Private Sub...
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by: John Dann |
last post by:
I have a listview control on a simple vb.net form that's populated
programmatically. It is set to scrollable and a scroll bar duly
appears. However the scroll bar doesn't allow the bottom rows of the
list to be seen.
For example, if I have 31 rows in the list with the control set to a
height that shows maybe 20 rows then the scroll bar allows me to get
down to eg row 28 as the bottom row, but not row 31. Yet if I drag the
bottom of the...
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by: John Dann |
last post by:
I'm creating a Listview control in details view under VB.Net which
always has 31 rows (populated at runtime) and 4 columns (ie 1 item
plus 3 subitems) of specified width. But at runtime and provided
there is surplus space on the form available (the form is not fixed
size), the control is displayed with a 5th (blank) column and as many
blank rows below row 31 as form space allows.
I'd like to do two things:
1. Stop the blank 5th...
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by: txplayboy2002 |
last post by:
Is there a way in vb.net to determine the number of rows that can be
visible in the listview region ? Not the total # rows in the
listview, but only the visible count.
Also, I was wondering if there was a way to determine from a given
ListViewItem, whether or not it is currently visible in the region.
Thanks,
Mark
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by: Mamatha |
last post by:
Hi
I have an application with listview.When i click on one
button the data will be displayed like this in the
listview:
colA colB colC
----- ----- ------
nannacom.com 0 0
When i click on another button,i want to display like this
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by: RT |
last post by:
Is there any way to make Listview items invisible or otherwise keep
them from displaying? Seems like temporarily removing, then restoring
later would be a severe runtime hit.
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by: witpo |
last post by:
Hi,
I would like to display all listview items in one row with scroll bar below it – instead of multiple rows and scroll bar on the right. Someone told me that I can achieve it using LVM_SETITEMPOSITION message.
According to my knowledge code below should set position for each item added to listView control. There are two ways of doing it - we can use MessageWindow.SendMessage from Microsoft.WindowsCE.Forms or use DllImport and SendMessage....
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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: 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: 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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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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