title: C# Task Pane Repaint in Excel when Excel's ScreenUpdating = False
body: <p>I am using a c# add-in to complete some complex calculations. I have a custom task pane in which I am using to show the progress (new lines are appended to a textbox).</p>
  
  <p>This works great when Excel's ScreenUpdating = True but the task pane does not repaint until the process is complete when ScreenUpdating = False. Is there any way to force the task pane to repaint whilst Excel's ScreenUpdating = False?</p>
  
  <p>Many thanks</p>
  
  <p>Mark</p>