begininvoke Questions
8
Does a System.Windows.Threading.Dispatcher work on the UI-thread of a WinForms application?
If yes, why? It is coming from WindowsBase.dll which seems to be a WPF component.
If not, how can I inv...
Inhabited asked 19/11, 2008 at 19:49
7
Solved
I've this little method which is supposed to be thread safe. Everything works till i want it to have return value instead of void. How do i get the return value when BeginInvoke is called?
public...
Baillie asked 6/2, 2010 at 17:44
5
Solved
I'm trying to call System.Windows.Threading.Dispatcher.BeginInvoke. The signature of the method is this:
BeginInvoke(Delegate method, params object[] args)
I'm trying to pass it a Lambda instead...
Doorn asked 8/2, 2011 at 17:49
3
Solved
According to Jon Skeet, "You can only call BeginInvoke on a delegate which has a single target invocation."
Why is that? What's the real reason?
Note: For clarification (and because I made this m...
Pt asked 6/6, 2011 at 22:43
1
Solved
I've seen these 2 versions of code while looking at some other developers' code:
1.
Me.BeginInvoke(New MethodInvoker(Sub() cbo.ShowPopup()))
2.
Me.BeginInvoke(Sub()
cbo.ShowPopup()
End Sub...
Tubulate asked 3/1, 2017 at 7:59
2
I have this sample code that calls a method asynchronously using begininvoke, I'm executing this on a button click event on a webform.
After the button click, the user is redirected to a differen...
Gang asked 14/7, 2012 at 22:18
13
Solved
I want to display a progress bar while doing some work, but that would hang the UI and the progress bar won't update.
I have a WinForm ProgressForm with a ProgressBar that will continue indefinite...
Closeup asked 23/12, 2009 at 11:21
7
Solved
I've read a couple of forums and even a stackoverflow question or two saying that Delegate.EndInvoke is necessary when using Delegate.BeginInvoke. Many of the articles I've read talking about using...
Metagenesis asked 3/1, 2011 at 14:1
1
Solved
I have simple (as i think) logic.
public static void NotifyAboutNewJob(int jobId, bool forceSending = false)
{
Action<int> notifier = SendAppleNotifications;
notifier.BeginInvoke(jobId, nu...
Rust asked 17/8, 2015 at 15:16
1
Solved
Why does Dispatcher.BeginInvoke unwrap TargetInvocationException for ThreadStart but not for Action?
Consider the following two applications:
1:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
this.Dispatcher.UnhandledException += Dispatcher_UnhandledE...
Nonbeliever asked 26/2, 2015 at 14:47
6
Solved
Just wondering what the difference between BeginInvoke() and Invoke() are?
Mainly what each one would be used for.
EDIT: What is the difference between creating a threading object and calling in...
Hyaloid asked 23/10, 2008 at 12:38
6
Solved
Why can't you pass an anonymous method as a parameter to the BeginInvoke method? I have the following code:
private delegate void CfgMnMnuDlg(DIServer svr);
private void ConfigureMainMenu(DIServe...
Sturdy asked 17/6, 2009 at 14:35
1
Solved
I'm confused why I can't make this test counter application work with 2 (or more) simultaneous running countertextboxes with the use of "BeginInvoke" on my Dispatcher in the Count() method.
You c...
Haun asked 25/9, 2013 at 15:33
2
Solved
MSDN tells clearly specifies:
Control.BeginInvoke() Executes a delegate on the thread that the control's handle was created on, normally this would be the GUI thread. And Dispatcher.BeginInvo...
Colner asked 19/2, 2013 at 15:44
2
Solved
Could you explain this for me please:
someformobj.BeginInvoke((Action)(() =>
{
someformobj.listBox1.SelectedIndex = 0;
}));
Could you tell me how can I use begininvoke exactly?
What is Actio...
Luxurious asked 17/1, 2013 at 21:7
4
Solved
I'm trying to write a really simple bit of async code. I have a void method that doesn't take any parameters, which is to be called from a Windows service. I want to kick it off async, so that the ...
Elasticize asked 10/12, 2012 at 19:17
2
Solved
When I am invoking a number of methods to a Dispatcher, say the Dispatcher of the UI Thread,
like here
uiDispatcher.BeginInvoke(new Action(insert_), DispatcherPriority.Normal);
uiDispatcher.Begi...
Canned asked 8/6, 2012 at 17:9
1
Solved
I am confused with scenario which I have encountered with cross thread access. Here is what I am trying to do:
Main UI thread - menu item click I create a background worker and run it asynchronous...
Nikolas asked 8/5, 2012 at 11:26
3
Solved
I want to write a class to simplify the asynchronous programing, like string s = mylib.BeginInvoek(test,"1"); here is my code:
public T BeginInvokeExWithReturnValue<T>(Func<T> actionF...
Simony asked 9/1, 2012 at 13:59
2
Solved
I have the following EventHandler:
private EventHandler<MyEventArgs> _myEventHandler;
public event EventHandler<MyEventArgs> MyEvent
{
add { _myEventHandler += value; }
remove { _myE...
Jauregui asked 11/8, 2011 at 9:33
3
Solved
Possible Duplicates:
Must every BeginInvoke be followed by an EndInvoke?
Is EndInvoke() optional, sort-of optional, or definitely not optional?
I've got a multithreaded application, ...
Rivas asked 30/6, 2011 at 4:56
1
I noticed that control.BeginInvoke(delegate) some times fail to call the delegate. I understand that BeginInvoke just creates a PostMessage and that message is handled by the application later (pos...
Ontiveros asked 7/6, 2011 at 19:25
2
Solved
I have application with two thread. One of them (T1) is main GUI form, another (T2) is function working in loop. When T2 gets some information must call function with GUI form.
I'm not sure that I...
Sello asked 7/6, 2011 at 16:8
2
Solved
Could someone shed some light on an issue I'm having?
I'm working on a wpf project. The scenario is as below:
I need to pop up a window(model window) on main UI thread and then close it. These wo...
Cruzeiro asked 3/5, 2011 at 9:41
3
Solved
I am looking for a way to test BeginInvoke on an Action method, since the method runs on a background thread there is no way of knowing when it actually completes or calls callback method. I am loo...
Suzerainty asked 4/5, 2011 at 15:35
1 Next >
© 2022 - 2024 — McMap. All rights reserved.