Use WPF Dispatcher to invoke event handler only when needed
Updated on Saturday, September 29, 2018
After floundering a bit with the WPF Dispatcher I've come up with a simple way to make sure an event handler executes on the UI thread without paying the overhead of always invoking a delegate.
This has the benefit (for me at least) of being very easy to remember. Hook up the event handler and then if there's a chance it could be called from a different thread wrap it using the pattern above. It's easier to read than an anonymous delegate and much faster than defining a specific delegate for the event in question.
I haven't tested the various methods to see which is the fastest yet… will get round to this at some point.
Add Comment
All comments are moderated. Your email address is used to display a Gravatar and optionally for notification of new comments and to sign up for the newsletter.