Wpf updating ui asynchronously
To recapitulate, the first article in the series used Reactive Extensions (Rx) directly in Windows Forms UI logic to implement a UI with a simulated background calculation, which delivered a timestamp each second.
The rest of the application was an input text box, for which, when the user inputs the text, the word count is calculated asynchronously and posted into another read-only text box.
The This instantiation can be definitely made in XAML as well, nullifying the amount of C# code for the view, as for example in the following article.
The background ticker and the word count are now bound one-way and marked asynchronous.
This loop monitors the Task Cancellation using Throw If Cancellation Requested() method.
The text being input was delivered to the viewmodel via an event converted to an observable sequence, which was used to update the changes to 0.3 seconds so that the word count is updated only when the user pauses for at least a third of a second to take a look at the result.In this project in bin\debug folder add a new XML file name Add the following sample data in it: The XAML has a Data Grid for displaying Employee Data.- The btn Cancel_Click method executes on the click event of the Cancel button, requesting for the Task Cancellation.Run the application, the following WPF Window will be displayed: The window has the Cancel button disabled. Now Load Employees button gets disabled and the Cancel button gets enabled.