OpenNETCF.Stopwatch -> only ticks changing, not Elapsed

I've been try开发者_Go百科ing to track down a bug I thought was thread-related, but I think instead there is an issue with the way I am using OpenNETCF's Stopwatch. I am using OpenNETCF.IoC in my application, but for the sake of simplicity I moved the following code directly into a view:

public partial class WorkoutView : SmartPart
{
 ...
 private Stopwatch stopwatch; 
 public WorkoutView()
 {  ...
    stopwatch = new Stopwatch();
    stopwatch.Reset();
    stopwatch.Start(); 

    WorkoutDisplayTimer = new Timer();
    WorkoutDisplayTimer.Interval = 500;
    WorkoutDisplayTimer.Tick += new EventHandler(WorkoutDisplayTimer_Tick);
    WorkoutDisplayTimer.Enabled = true;
 }
 void WorkoutDisplayTimer_Tick(object sender, EventArgs e)
 { ...
   stopwatch.Stop();
   lbl.Text = stopwatch.ElapsedTicks.ToString() + "NOT WORKING: " + stopwatch.Elapsed.ToString();
   stopwatch.Start();
  }
  ...
}

Long story short, looking at stopwatch in the debugger, the only values that ever get updated are ElapsedTicks, mElapsed, mStartPerfCount. Everything else is always zero. Is this expected behavior? Do I need to call an additional method to have the stopwatch calculate the Elapsed struct? (Note: stopwatch.ElapsedMilliseconds is also zero)

Yep, it appears to be a bug, specifically in Stopwatch.cs, line 136.

It currently reads:

smFreqInTicks = (MILLIS_IN_TICKS * 1000) / freq;

it should read:

smFreqInTicks = (MILLIS_IN_TICKS * 1000d) / freq;

Right now smFreqInTicks ends up being always zero, which kills the values you're looking at.

Why not use the version in the Compact Framework itself? It's in there from version 3.5 onwards...