Rusty questions

Rusty answers

• How to make my robot move in a rectangular path along the black tape?
• What is the difference between Thread.Sleep(timeout) and ManualResetEvent.Wait(timeout)?
• C# performance of static string[] contains() (slooooow) vs. == operator
• Background worker proper way to access UI
• Why isn't it possible to update an ObservableCollection from a different thread?
• Loading an image in a background thread in WPF
• How do you draw a line on a canvas in WPF that is 1 pixel thick
• How securely unguessable are GUIDs?
• "new" keyword in property declaration in c#