[Gambas-user] ValueBox (Date) detecting a change in the Value

[Bruce]

On Wed, 2013-06-05 at 02:52 +0200, Benoît Minisini wrote:
> Le 05/06/2013 02:45, Bruce a écrit :
> > (I must be having a senior moment!)
> >
> > I am using a ValueBox to allow the user to select a date which is a
> > partial key for a database read. But, how can I detect that the user has
> > altered the value and so initiate the db read?
> >
> > The full key consists of a string value from a preceding combobox
> > control and the date from this control. So the overall logic I need to
> > achieve is
> > 1) cboVenue_LostFocus
> >      If the valDate.Value <> 0 then ReadDB(cboVenue.Current.Text,
> > valDate.Value) otherwise valDate.SetFocus (this works fine)
> >
> > 2) valDate_???
> >      If cboVenue.Current.Text then ReadDB(cboVenue.Current.Text,
> > valDate.Value) otherwise cboVenue.SetFocus
> >
> > valDate_LostFocus fires if the user tabs from the ValueBox textbox into
> > the button, at which point the date has not been set.
> >
> > The "dwgMonth" control (the calendar popup) does not seem to raise
> > events.
> >
> > The user could enter the date as text in the ValueBox text area or use
> > the calendar popup to select a date and either press the return key or
> > double click the mouse. Both the latter result in the focus going back
> > to the ValueBox text area.
> >
> > tia
> > Bruce
> >
> 
> Mmm, I think you need ValueBox to raise sort of "Change" event, don't you?
> 
 Given the multiplicity of ways for the user to create a value, yes.

B