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by: spammy |
last post by:
Hi all,
I have a windows form that uses an imported COM class to talk to a legacy
system. The COM object works asynchronously - An event is fired when data
has
been returned.
This works fine, except that Im getting too many events fired! Thus my
windows form becomes pretty sluggish and unresponsive, and CPU utilistaion
is pretty high.
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by: JPRoot |
last post by:
Hi
I use the following syntax to have events inherited from base to child classes which works nicely (virtual and override keyword on events). But I am wondering if it is a "supported" way of using events since I never saw it used anywhere in MSDN documentation/samples?! Or it will just break when I upgrade to .NET Framework 2.x in the coming years
namespace MyNamespac
public delegate void MyDel()
public class MyBase
public virtual...
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by: Stampede |
last post by:
Hi,
I want to use the FileSystemWatcher in a Windows Service. I read an article,
where the author created the FileSystemWatcher object in a seperate thread
and when the event is fired, he started a working thread for processing the
file, created a new FileSystemWatcher (as he said for real time processing),
and then called the join method for the first thread.
I can't really see the sence in this. Aren't the events of the...
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by: Jesper Ordrup Christensen |
last post by:
Hi all,
I've designed a webform that has the following controls:
1. dropdown with autopostback
2. datagrid with an OnItemCreated event
The idea is that the dropdown defines a filter.
When I select a value in the drop down the following happends:
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by: Ferdinand Zaubzer |
last post by:
As far as I know events are fired by invoking a method.
Is it possible that events are fired if a boolean property changes its
value?
Thanks
Ferdinand
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by: goodoldave |
last post by:
Hey everyone, I need some advice concerning Interfaces and delegates.
I would like to define a delegate inside of an interface (I know a
delegate is a class but hear me out)
Here is a sample:
Interface A
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by: meska |
last post by:
Hi all,
Scenario:
I have a MonthCalendar control, and DataGridView. Depending on dates
displayed in MonthCalendar I want to update information from database.
The Possible Solution:
So I must use DateChanged and/or DateSelected events to get the new dates
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by: Steve Hershoff |
last post by:
Hi everyone,
I've got a strange one here. There are two datagrids on my page, one nested
within the other. I'll refer to them as the topmost and secondary
datagrids.
In the topmost datagrid's OnItemDataBound() method we check for the row in
which it's appropriate to add the secondary datagrid. Exactly one row in
the topmost grid will contain the secondary grid.
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by: Glenn |
last post by:
I have a class which has an async function which uses begininvoke on a
delegate to run a private function in the class. The class has an
event which reports back i) a unique identifier for that instance and
2) the progress of the operation
on my form class I create a new background thread and I declare two
instances of the class.
I create an event handler and connect this up to the progress changed
event of both classes. The handler...
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by: Michal Valent |
last post by:
I would like to fire some custom server control event before Page_Load event
like this (from the trace of an aspx page) :
Trace Information
Category Message From First(s) From Last(s)
aspx.page Begin PreInit
aspx.page End PreInit 5,38454603734274E-05 0,000054
aspx.page Begin Init 8,96405962016187E-05 0,000036
aspx.page End Init 0,00072941040948794 0,000640
aspx.page Begin InitComplete 0,000772971258380746 0,000044
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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: 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: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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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: 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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