[R H Steele]

I'm unable to open the Dispatch Window in MG77 -- getting a Windows Unhandled exception - Overflow Error. Blue Comet Route if that means anything, nothing in the log. No problems opening the Dispatch Window in MG76. Same route, same activity. The only difference appears to be the addition of a Timetable Tab to the Dispatch Viewer. +
Why does Ctrl+9 default to the Timetable Tab when I'm not running a timetable?

Attached File(s)

•  bandicam 2020-11-30 20-50-21-410.jpg (703.62K)
  Number of downloads: 20

[Csantucci]

Hi Gerry,
are you able to expand the error window so that the whole error stack is shown? This would allow to track down where the error arises. As a minimum request it would be nice to know which code line is indicated in the third error message line starting with "at".
By the way, why aren't you using a more recent version of NewYear?

[R H Steele]

Hi Carlo, no particular reason for no using MG82, just haven't gotten around to it. I did install MG82 and tried the same route/activity combo on my laptop [Win10] and got the same overflow error when opening dispatch window ctrl+9. So this happens on both Win7 (desktop ) and Win10 on MG revisions I've tried after MG76. I do not get the overflow error using MG76.
Complete exception text follows:

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.OverflowException: Overflow error.
at System.Drawing.Graphics.CheckErrorStatus(Int32 status)
at System.Drawing.Graphics.DrawCurve(Pen pen, PointF[] points)
at Orts.Viewer3D.Debugging.TimetableWindow.DrawTrack(Graphics g, Pen p, PointF& scaledA, PointF& scaledB) in F:\ADRIANA\Carlo\OR_Work\Git_ORTS_source_mio\Source\RunActivity\Viewer3D\Debugging\TimetableWindow.cs:line 454
at Orts.Viewer3D.Debugging.TimetableWindow.GenerateTimetableView(Boolean dragging) in F:\ADRIANA\Carlo\OR_Work\Git_ORTS_source_mio\Source\RunActivity\Viewer3D\Debugging\TimetableWindow.cs:line 338
at Orts.Viewer3D.Debugging.DispatchViewer.GenerateView(Boolean dragging) in F:\ADRIANA\Carlo\OR_Work\Git_ORTS_source_mio\Source\RunActivity\Viewer3D\Debugging\DebugViewerForm.cs:line 577
at Orts.Viewer3D.Debugging.DispatchViewer.UITimer_Tick(Object sender, EventArgs e) in F:\ADRIANA\Carlo\OR_Work\Git_ORTS_source_mio\Source\RunActivity\Viewer3D\Debugging\DebugViewerForm.cs:line 245
at System.Windows.Forms.Timer.OnTick(EventArgs e)
at System.Windows.Forms.Timer.TimerNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Loaded Assemblies **************
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.

[Csantucci]

Maybe Chris can help here. The exception occurs inside of

					g.DrawCurve(p, points);

There are only three points.

[Csantucci]

I've generated a workaround patch that I will include in next OR NewYear MG release. It should both avoid the exception and write a log line with the value of the parameters involved, which might offer an insight about what is the cause of the problem.
If this won't lead to a satisfactory result I can modify the startup default until the problem is solved.

[R H Steele]

http://www.elvastower.com/forums/public/style_emoticons/default/sign_thank_you.gifhttp://www.elvastower.com/forums/public/style_emoticons/default/hi.gif Looks like this bug? was introduced with the Timetable window being added to the Dispatch Viewer window? I hope it doesn't have any other unintended consequences...thanks for your time and effort...Health and happiness to yourself, your loved ones, and even to the relatives you don't like so much. http://www.elvastower.com/forums/public/style_emoticons/default/wink.gif
Best Regards, Gerry

[Csantucci]

Yes, the problem is related to the timetable window, but by the moment I don't call it a bug.

[cjakeman]

 Csantucci, on 01 December 2020 - 01:06 PM, said:

Maybe Chris can help here. The exception occurs inside of

					g.DrawCurve(p, points);

There are only three points.

Thanks for coming up with a workaround, Carlo.

I did my best to add the Timetable Tab without disturbing the existing code. I've no idea why this line should cause trouble when other lines are fine.

[R H Steele]

Chris, Thanks for your time and effort also, much appreciated. Also, health and happiness to you and yours, and even to the relatives you don't like so much. http://www.elvastower.com/forums/public/style_emoticons/default/wink.gif

[mbm_OR]

Hi Gerry,
It seems that an unattached tracksection generates this issue.

The faulty TrackSection have been found using TrackViewer.
 Blue Comet Lines.jpg (20.49K)
Number of downloads: 4

The proposed patch, seems to solve this trouble.

Update (2020/12/04)
 Dispatcher-bad-tracksection-OR-MG-NewYear.diff.txt (3.97K)
Number of downloads: 3

Regards,
Mauricio