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by: Tom |
last post by:
For some strange reason my WinForms app occasionally
throws a System.NullReferenceException upon invoking the
Clear() method. The app will work fine for a long period
of time and then all of a sudden this exeption is thrown
and after that you just cant ever clear the ListView
control again - even though messages still go into it and
are displayed correctly.
Anybody have any idea what could be causing this?
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by: Aron Henning |
last post by:
I have a ListView that contains the subfoldes of a local drive.
Whan i click on a subfolder the listbox should display the subfolders of
this folder instead.
the funktion is as follows:
private void FolderList_SelectedIndexChanged(object sender, System.EventArgs
e)
{
try
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by: Brian Keating EI9FXB |
last post by:
Hello there,
I've been playing with custom draw and am having a bit of difficulty,
Namely the graphics function in this function throws invalid arg exception.
Im pretty sure this is correct cause the rect part of the nmcd seems to be
nonsence
public int OnItemPrePaint(int idCtrl, ref Win32.NMCUSTOMDRAW nmcd)
{
using (Graphics gdc = Graphics.FromHdc(nmcd.hdc)){
gdc.ReleaseHdc(nmcd.hdc);
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by: Ira Siyal |
last post by:
Hi
I had a project in VB6 which I upgraded to VB.NET recently.
In the app, I am facing some issue with listview control. In the earlier
app, I have set the Icons in listview through an imagelist.
but i notice that while i execute the project in .net, the step that sets
the icon prop. throws an exception.
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by: BobAchgill |
last post by:
I am trying to decide which of these controls to use to
implement letting my user select a full row from
MyList. The MyList has several columns which would be
nice to sort by at run time. The MyList data is resident
in a dataset table.
I'm stuck and can't choose either because.
If I choose ListView as my control I don't understand how
to programmatically get the data from the dataset table
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by: Stuart |
last post by:
Hi,
I am trying to use a 2.0 virtual listview, I thought it was all working fine
until I tried to remove an item from it. For example if the top of the list
is visible and I do:
myListView.VirtualListSize = myListView.VirtualListSize - 1;
It works fine, the scrollbar shrinks slightly so it's obvious the bottom has
been removed, but if the scrollbar is moved down slightly at all the line
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by: =?Utf-8?B?Q2FibGVHdXk=?= |
last post by:
If I have an unsorted listview I know I can select the first Item by
ListView.Items.Selected = true. How do I select the first item in a sorted
listview?
Thanks.
CableGuy
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by: forest demon |
last post by:
I have an IList/Collection that contains items in a ListView.
If i click on an item in the ListView, i can capture the index
(lv.SelectedItems.Index) and reference the correct item in the
associated IList/Collection .
Once I've sorted the ListView, obviously the indices do not match up
anymore. So, should i sort the IList/Collection when I sort the
ListView (which seems overkill to me) or some how sort the indices
associated with the...
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by: Joza |
last post by:
Hi!
I'm getting error when selecting items in ListView control, it
says ArguementOutOfRangeExceptions. That happens in SelectIndexChange
event. I have tryed with try...catch but there's no effect.
The code inside that event is:
private void LVKalk_SelectedIndexChanged(object sender, System.EventArgs e)
{
try
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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:
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: 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: 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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