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by: Rob R. Ainscough |
last post by:
I'm using a BackgroundWorker to perform a file download from an ftp site.
Per good code design practices where I separate my UI code from my core
logic code (in this case my Download file method in my FileIO class) I've
established Public Event in my core logic classes along with RaiseEvents
(that will updated a progress bar on the UI side). This all works great
when I'm NOT using Threading (BackgroundWorker), however, as soon as I...
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by: Bob |
last post by:
Hi,
I am having trouble seeing how this bolts together.
The UI starts a process which involves a long running database update.
All Database activity is handled by a class called DT.
DT has a progress event.
So I added a bw to the form. The Dowork Calls a method which instantiates a
DT and calls its Dataprocessing method.
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by: =?Utf-8?B?SXNobWFlbA==?= |
last post by:
Hi,
I have a form with a progress bar on it and wanted to use the
BackgroundWorker to be able to update the progress. I looked at examples, run
some of them, but in debug, when the code gets to the do work method, it
stops for a long while and then executes the first line of the method and the
doesn't do anything else.
What am i doing wrong?
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by: Chris |
last post by:
When I try to access the backgroundWorker.CancellationPending property I get
the following exception:
An unhandled exception of type 'System.Reflection.TargetInvocationException'
occurred in mscorlib.dll
Additional information: Exception has been thrown by the target of an
invocation.
I am using the backgroundWorker in a component that I am trying to make for
doing encryption of large files in the background.
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by: RvGrah |
last post by:
I'm completely new to using background threading, though I have
downloaded and run through several samples and understood how they
worked.
My question is:
I have an app whose primary form will almost always lead to the user
opening a certain child window that's fairly resource intensive to
load. Is it possible to load this form in a backgroundworker and then
use the Show method and hide method as necessary? Anyone know of
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by: RBrowning1958 |
last post by:
here's an easy one for you guys - .NET form designer generates this:
private System.ComponentModel.IContainer components = null;
but I don't see it used anywhere in the generated code - what's all
that about? Also, it generates code to add the individual controls to
Controls as in:
this.Controls.Add(this.comboBox1);
this.Controls.Add(this.menuStrip1);
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by: Falcon |
last post by:
Hi all,
I want to fill a TreeView with some heave data. this action may take
several minutes and I'd like to show to the user a model dialog with a
simple ProgressBar ('Marquee' style). I managed to work before with
BackgroundWorker and Invoke methods, but this time When I try to add a
node to the tre I alwayes get an Error saying : "Action being
performed on this control is being called from the wrong thread.
Marshal to the correct...
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by: schnandr |
last post by:
Hi,
I have a user control which contains ListView. I copy all
ListViewItems into a separate List<ListViewItemcalled
unfilteredItems.
I am using a BackgroundWorker to filter the ListView. When I access
this list in the DoWork Handler I am getting an
InvalidOperationException that
the List was not created by this thread. Is there a way to solve this
problem?
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by: DevInCode |
last post by:
I'm looking for some help or suggestions about something I'm working
on. I'm using the webbrowser control in VB.net. I want to click a
button and have the webbrowser go to a certain website (done). Then I
want it to wait a period of time and then do something on the page its
on. The part I'm having a problem with is the waiting period. in the
main form I have no problem manipulating controls or anything like
that.
One solution...
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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: 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: 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: 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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