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by: boxim |
last post by:
hi all,
I'm having a few problems whereby my application is hanging when using the
Invoke method of a form's control.
Basically, when a user clicks a button on the form, it calls a remote
function, which in turn fires an event that is caught by the form.
The form then need to add a value passed in the event to a form object,
however, when using the Invoke method, it just hangs.
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by: Tom |
last post by:
Hi Everybod
I want to update some controls in a form from another threads. I did it by passing the form to that thread and calling a delegate with Form1.Invoke, I want to have just one delegeate for all of my controls in the Form and dont define one delegate for each control. Some thing like to have a switch case in that delegate fucntion and passing control name to it..
what is the impact of this method in comparison with...
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by: Zürcher See |
last post by:
I'm using the following structure for my programm, and I never had problems.
Now by the invoke of the MyObject_End eventhandler I get the following
error:
System.Windows.FormsSpecified cast is not valid.
at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate
method, Object args, Boolean synchronous)
at System.Windows.Forms.Control.Invoke(Delegate method, Object args)
....
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by: rawCoder |
last post by:
Hi
I am having this InvalidOperationException with message Cannot call Invoke
or InvokeAsync on a control until the window handle has been created
This is raised when i try to invoke a method with arguments
I need to do this as the method is being called Asynchronously from
elsewhere using delegate's BeginInvoke method.
The form is well created/initialized yet the messages states otherwise.
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by: trint |
last post by:
Ok,
I start my thread job:
Thread t = new Thread(new
ThreadStart(invoicePrintingLongRunningCodeThread));
t.IsBackground = true;
t.Start();
There are lots of calls to controls and many happen in function calls
from invoicePrintingLongRunningCodeThread. I need just an example in
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by: Phil |
last post by:
How do I invoke a Word method on Words' thread, instead of on my app's thread?
Background:
My VB.NET app automates Word (2000 and onwards). After I do some editing
(successfully) on a Word.Document object, I then call the document object's
Save method, but it produces the following COMException: "The Save method or
property is not available because this document is in another application."
I have had numerous similiar COMExceptions...
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by: Thomas Due |
last post by:
Hi,
I have a class which monitors a TCP socket. This will on occasion raise an event which can be handled by a GUI.
Now, I am aware of the
if(InvokeRequire) {
EventHandler d = new EventHandler();
Invoke(d, new object{sender, e});
} else {
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by: =?Utf-8?B?a2VubmV0aG1Abm9zcGFtLm5vc3BhbQ==?= |
last post by:
vs2005, c#
Trying to understand why one way works but the other doesnt.
I have not tried to create a simpler mdi/child/showdialog app for posting
purposes (I think even this would not be so small or simple). I am hoping
the description will generate some ideas I can check out.
PROBLEM:
-----------------
Switching to UI thread using Invoke(), everything seems good.
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by: balabaster |
last post by:
I have a class that I want to make thread-safe and am investigating the ISyncronizeInvoke interface and wondering just what it will take to implement this interface. So far the basic concept of my code is:
Public Class MyClass1
Implements System.ComponentModel.ISynchronizeInvoke
Private _InvokeRequired As Boolean = False
Public Function BeginInvoke(ByVal method As System.Delegate, ByVal args() As Object) As...
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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: 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: 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: 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: 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: 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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