[Gambas-user] Strange problem with Date Time and ValueBox

[Richard]

I have a little program which I wrote for the last winter Ashes tour. It 
provides a way to do timer controlled recordings from radio programmes 
streamed by the BBC and played by Helixplayer.

I have tinkered with it from time to time to bloat its feature set and keep it 
up to date with various key changes to the Gambas2 environment. The current 
working version is in use recording each day's play in the 3 test series 
under way in New Zealand. It runs on Gambas2 v2.0 with a backported bug-fix 
for the date chooser control which Benoit kindly provided.

I have always found plenty to confuse me when handling dates and times in 
Gambas but having converted from my own customised versions of the DateBox 
and TimeBox controls to the new ValueBox control I had reviewed the date and 
time handling code to make sure I am not doing any redundant conversions.

Something I changed recently introduced a bug to the 
store-recall-timer-settings process. A date and time entered as {02/03/2008 
15:45:11} is changed, when it is recalled from a storage array, to 
{02/03/2008 00:41:26}.

A lot of time spent tracing through my over-complex logic eventually located 
the probable "cause" in part of the code which restores a previously stored 
collection of settings.  The relevant code snippet is:

        'Timer tab controls
        LineRecord.StartDateChooser.Value = Date(records[ix].Start_Time)
        LineRecord.StartDateBox.Value = Date(records[ix].Start_Time)
        'Do not trigger selected Change events
        LineRecord.INC_autoset
        LineRecord.HourTimeSet.Value = Hour(records[ix].Start_Time)
        LineRecord.MinuteTimeset.Value = Minute(records[ix].Start_Time)
        LineRecord.SecondTimeSet.Value = Second(records[ix].Start_Time)
        'Re-enable selected Change events
        LineRecord.DEC_autoset
        'LineRecord.StartTimeBox.Value = Time(records[ix].Start_Time)
        LineRecord.StartTimeBox.Value = (records[ix].Start_Time)

In the last two lines the version commented out is the line which introduces 
the incorrect time. The line below works just fine. The records array is an 
array of objects of Class Recording. The Recording.Start_Time property is a 
Date value with both date and time parts. 

Until this week the first two lines, and the penultimate, simply assigned the 
whole date/time value to the DateChooser, StartDateBox  and the StartTimeBox. 
I decided to make it more "correct" after reading about the Date and Time 
conversion functions. Only the Time(date_variable) line is "wrong". Reverting 
to the old sloppy way fixes the problem.

Here's the question: Has anyone come across a similar problem in date/time 
handling? I have tried replicating the problem in independent code with no 
success. 


Richard