MessageBox cures problem is it a timing issue??

[GlennP]

 Hi All,

Bit of an odd one,  I am reading back some Data via a serial port but it appears not to be updated on the form so I was debugging the app with a message box to hold the program flow it sprang to life.  It was the MessageBox that was slowing or block some thread. Now I am after a way of simulating the action of a message box appearance.  Thread.Sleep() and for(); do not cause the right sort of delay I think, where thread sleep blocks the UI thread.  HELP!

Glenn

[GlennP]

Hello,
It seems as thought my Form update was not taking place right
   if(Form1.ActiveForm != null)   Form1.ActiveForm.Update(); cured the problem
Thanks
   Glenn