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Wpf Shutdown Application From Another Thread


Draw a hollow square of # with given width What movie is this? disp.BeginInvokeShutdown(DispatcherPriority.Normal); } The last step – Waiting idly while the test executes There is one final detail involved with this class. source line method etc) doesn't make it back to the xUnit or NUnit framework. To understand more on this consider the following code snippet : 1: [STAThread] 2: static void Main() 3: { 4: Application app = new Application(); 5: Window win = new Window();

NOTE: I've posted the relevant code at this gist: https://gist.github.com/DamianReeves/76771a031f05a8be042d c# wpf multithreading dispatcher share|improve this question edited May 30 '14 at 15:58 asked May 30 '14 at 15:39 Damian 1,2111125 How can I remove an Online Account? If you don't need the progress events, then using the ThreadPool and Dispatcher can be simpler - especially if you're going to be doing quite a few different operations. BeginInvoke adds the delegate to the Dispatcher’s event queue but gives you the opportunity to specify a lower priority for it. http://stackoverflow.com/questions/23958345/binding-a-new-dispatcher-to-a-thread-in-wpf

Wpf Shutdown Application From Another Thread

If you do not have NUnit installed on your machine, open Solution Explorer in Visual Studio, right click on the NUnitTest project, and select 'Unload Project'. Dispatcher class is pretty dense with lots of properties and methods. Really Cool. The error only occurs when the calendar is being expanded (by clicking on the DatePicker) for the first time after the session has been lost.

It works. Is there a way to force a new Dispatcher to be associated with a thread which previously had a Dispatcher associated with it? I'll use ThreadPool and Dispatcher. –lamarmora Sep 21 '10 at 19:16 Thank you very much! How to disable the high priority publish option in SDL Tridion Why did Michael Corleone not forgive his brother Fredo?

Here is the public API for TickerSettings: interface ITickerSettings { TimeSpan Interval { get; } int NumberOfTicks { get; } DispatcherPriority Priority { get; } } The test we want to You usually would never need to know the underlying details of how it interacts with a Dispatcher. Source=PresentationFramework LineNumber=0 LinePosition=0 StackTrace: at System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter) InnerException: System.InvalidOperationException Message=Cannot perform this operation while dispatcher processing is suspended. What crime would be illegal to uncover in medieval Europe?

Object reference not set to an instance of an object. Demonstrates how to create unit tests for a class which uses a DispatcherTimer. However, my project involves a COM component with some events. Modern or what?

Application Current Shutdown Not Working

Keep in mind that multiple unit test methods might need to run on the same thread. https://weblogs.asp.net/pawanmishra/understanding-dispatcher-in-wpf Ideally I want to have one dedicated thread which is responsible for out of band notifications like the splash and popup "toasters". Wpf Shutdown Application From Another Thread It checks whether the calling thread is the one which created the DispatcherObject. Begininvokeshutdown C# If C# 4 is an option, however, using the Task Parallel Library is a great option, as well.

share|improve this answer answered Sep 21 '10 at 16:57 Reed Copsey 398k388001125 No, unfortunately I'm working with VB 2008 and fw 3.5 SP1. It works 100% for the 20 or so other scenarios and results 100% of the time in the above exception for this one; at least it's consistent! It provides a prioritized message queue, from which the message pump can pull messages and process them. The cost of switching to electric cars? Dispatcher Run

Ata - Monday, August 30, 2010 9:28:48 PM Understanding “Dispatcher” in WPF Leave a Comment - Thursday, March 3, 2011 11:25:23 AM Nice and very helpful article. Edit: further observations. Check out his Advanced MVVM[^] book. I found that, while very ugly, just forcing everything to pass through a Dispatcher.BeginInvoke call will "workaround" the issue, since it will prevent the dialog from displaying until after the dispatcher

Then I don't have much clue on the cause of this issue. About Me Sanjay Singh I am a Software Developer, currently working as Technical Architect and am located in Washington DC Metro area. Anyway, glad to know you have successfully workaround the problem.

In case you are not familiar with DoEvents, just think of it as a way of processing all of the messages in the message queue in one fell swoop.

Step 1 – Spawn a worker thread to run the test method When the subclass wants to run its test code, it needs to call the BeginExecuteTest method. I end up with 2 Dispatchers the Main Ui dispatcher and the "Splash" Dispatcher). And following is the error message : The calling thread cannot access this object because a different thread owns it. That way, it also gets killed if the main thread quits. –Daniel Rose May 31 '10 at 8:08 add a comment| up vote 0 down vote By the way, Daniel -

The Dispatcher's message pump processes the tick messages and invokes the method which handles the Tick event. If a Dispatcher is shut down, it cannot be restarted. Privacy statement Dev Centers Windows Office More... Linux questions C# questions ASP.NET questions fabric questions SQL questions discussionsforums All Message Boards...

We use an // STA thread because many WPF classes require it. // We must do this work on a worker thread because // once a thread's Dispatcher is shut down It is not necessary to read this section in order to use the class. Thanks Dharmendra Baghel - Thursday, July 14, 2011 5:52:53 AM very nice article. Wednesday, August 17, 2011 3:51 PM Reply | Quote 1 Sign in to vote I've had similar problems when using some 3rd party controls.

View my complete profile Followers Labels .net (1) .netcore (1) Algorithms (1) azure (3) Batch Script (2) C# (9) dotnet (1) dotnetcore (1) Embedded Database (1) Error (1) Firebird (9) ITTIA Could this be related to your problem? Assigned to that thread is method called “DisplayTime”. Comment one or the other method call in Application_Startup: public partial class App { private void Application_Exit(object sender, ExitEventArgs e) { MessageBox.Show("Exiting"); } private void Application_Startup(object sender, StartupEventArgs e) { var

Any way to color lines in a Line command? One reasonable scenario in which a DispatcherTimer might be used outside of a WPF application is if it happens to be running within a unit test. From the looks of your scenario, the problem is that this is effectively happening during construction (ie: loading xaml from a template/file/etc) - so the dispatcher is temporarily disabled. So far, it has saved me hunderds of hours of laborous searching for translations of those error messages.I simply love it!

That method kicks off the whole process by spawning a thread which executes the BeginExecuteTestAsync method and then waiting for that thread to die. Browse other questions tagged c# wpf multithreading shutdown dispatcher or ask your own question. While the code being tested is running TestWithActiveDispatcher needs to wait around idly, such that it does not prevent the Dispatcher's message pump from getting a chance to process messages. Antonym for Nourish How can a Cleric be proficient in warhammers? 40 Vertices And A Connected Graph, Minimum Number Of Edges?