John Wood has written a pretty tricky and seemingly very helpful solution to call methods on UI controls easily (as in – much lesser code).
You know the problem: if you want to call a UI component’s method in a thread-safe manner, you must use the Invoke (or BeginInvoke and EndInvoke) method. In addition, you need a delegate and a special method for every such method you call, and then you have to do that again in each project! (I’m not talking about C# 2).
I’ve seen various ways people have tried to work around this painful bit, but I think that John’s looks particularly nice.
Performance-wise, for a single call it may be too expensive since it’s based on Reflection, but in most cases those calls are performed again and again and since he uses a caching mechanism I wouldn’t worry about that.
I’m certainly going to try it out next time I need it!
Ah, I almost forgot, here’s the link: http://dotnetjunkies.com/WebLog/johnwood/archive/2005/08/31/132267.aspx
No comments:
Post a Comment