https://www.dotnetzone.gr:443/cs/blogs/iwannis/archive/2009/07/31/timers-in-wpf.aspxThere are times when you need a task to execute periodically. There are two ways of achieving this: Use the System.Windows.Threading. DispatcherTimer Use the System.Threading. Timer Say now that you want to implement a class the executes DoSomething()elCommunityServer 2.1 SP3 (Build: 20423.1)