[Gambas-user] ProgressBar Change Event

Sun Jul 10 11:42:10 CEST 2011

ok, maybe you are right.

i explain my case:
In my case the purpose to use a change event for progressbar is to
inform user about the changes of its value within control and not from a
variable which changes the value of the control.
Only for this.

For the data/view part i understand what are you saying.
But the progressbar store its state to its value property.

The difference is that the user cannot change its value from the
keyboard but the program does it, ok.

Also from another point of view there is a change to the property Value
regardless that there is no implementation for this as an event, so far
or an obvious purpose to use such an event.

If the change event is used only for the input of user and how the user
changes a value, it is ok, there is no need for a change event for
progressbar. i just thought that the change event would described better
the behavior of the progressbar to its operation independently of user
actions.

On Sun, 2011-07-10 at 10:54 +0200, Fabien Bodard wrote:
> But There is an ENORMOUS difference between a textbox and a progressbar !!
> 
> In the progressbar side the user CAN'T change the value with his
> keyboard or mouse. So we know where and when the value is changed.
> 
> The change event in the text box is a way to inform the program that
> the user do something.
> 
> You need really to explain us why you really need this event !!
> 
> 
> i think it's not a real need because
> 
> 
> Public sub SpinBow_Change()
>   Progressbar1.Value = Last.value/100
> End
> 
> 
> Public sub ProgressBar1_Change()
>   If last.Value =1 then message.info("end process")
> End
> 
> 
> is more complicated (for the same result) than :
> 
> Public sub SpinBow_Change()
>   Progressbar1.Value = Last.value/100
>   If last.Value =100 then message.info("end process")
> End
> 
> 
> no ?
> 
> I really don't understand why you need to test the progressbar ? and
> not check on the value that set the progressbar... you need to
> learn the data/view way of programming. Datas are one thing , View
> another ! ProgressBar is just a view for a state... but does not
> store the state.
> 
> 2011/7/10 Demosthenes Koptsis <demosthenesk at ...626...>:
> > Dimitris i say exactly that.
> >
> > 1) There is no watcher method to watch the changes in a progressbar.
> >
> > i would like to write something like that.
> >
> > PUBLIC SUB ProgressBar1_Change()
> >  Message.Info("Complete 100%")
> > END
> >
> > but progressbar has not any Change() event.
> >
> > 2) So for now i use a Timer with interval 100 ms who watch
> > ProgressBar.Value and show the Message.
> >
> > 3) Of course i can watch the variable who feeds the ProgressBar.Value
> > but this is not the solution.
> >
> > it is the same to watch the sString variable for a tetbox and not use
> > the Change event.
> > example:
> > TextBox1.Text = sString.
> >
> > what is the solution here? To watch sString or to use a change event?
> >
> >
> > On Sat, 2011-07-09 at 21:54 -0600, Dimitris Anogiatis wrote:
> >> Demosthene,
> >>
> >> Since the value of the progressbar cotnrol is just between 0 to 1
> >> you can probably try
> >>
> >> IF ProgressBar1.Value = 1 THEN ProgressBar1.label="Process complete"
> >>
> >>
> >> You can probably do this within the ProgressBar1_Change() event
> >> assuming that the event is going to get fired when an input changes
> >> the Value property of the control.
> >>
> >> I hope this helps
> >>
> >> Dimitris
> >>
> >> On Sat, Jul 9, 2011 at 1:04 AM, Demosthenes Koptsis
> >> <demosthenesk at ...626...>wrote:
> >>
> >> > in that case
> >> >
> >> > the expression
> >> > if X >=1 then message.info("all is done")
> >> >
> >> > who will watch this expression?
> >> >
> >> > i need a timer or event loop or event ProgressBar1_Change()
> >> >
> >> > i implement this for now with a timer
> >> > but i think it would be more elegant as programming approach to watch the
> >> > ProgressBar1.Value and not the variable who set this value.
> >> >
> >> >
> >> > On Sat, 2011-07-09 at 00:02 +0200, Fabien Bodard wrote:
> >> > > ??? can't you test the value when you set the value of the progressbar ?
> >> > >
> >> > > progressbar1.value = X
> >> > >
> >> > > if X >=1 then message.info("all is done")
> >> > >
> >> > > 2011/7/8 Demosthenes Koptsis <demosthenesk at ...626...>:
> >> > > > hi,
> >> > > >
> >> > > > i make an example with progressbar and i saw that i was needed a
> >> > > > ProgressBar_Change() event to check the status (value) of the control.
> >> > > >
> >> > > > So if value is 1 to show a Message.Info("Complete 100%").
> >> > > >
> >> > > > Is it possible to implement this event?
> >> > > >
> >> > > >
> >> > > > --
> >> > > > Regards,
> >> > > > Demosthenes Koptsis.
> >> > > >
> >> > > >
> >> > > >
> >> > ------------------------------------------------------------------------------
> >> > > > All of the data generated in your IT infrastructure is seriously
> >> > valuable.
> >> > > > Why? It contains a definitive record of application performance,
> >> > security
> >> > > > threats, fraudulent activity, and more. Splunk takes this data and
> >> > makes
> >> > > > sense of it. IT sense. And common sense.
> >> > > > http://p.sf.net/sfu/splunk-d2d-c2
> >> > > > _______________________________________________
> >> > > > Gambas-user mailing list
> >> > > > Gambas-user at lists.sourceforge.net
> >> > > > https://lists.sourceforge.net/lists/listinfo/gambas-user
> >> > > >
> >> > >
> >> > >
> >> > >
> >> >
> >> > --
> >> > Regards,
> >> > Demosthenes Koptsis.
> >> >
> >> >
> >> >
> >> > ------------------------------------------------------------------------------
> >> > All of the data generated in your IT infrastructure is seriously valuable.
> >> > Why? It contains a definitive record of application performance, security
> >> > threats, fraudulent activity, and more. Splunk takes this data and makes
> >> > sense of it. IT sense. And common sense.
> >> > http://p.sf.net/sfu/splunk-d2d-c2
> >> > _______________________________________________
> >> > Gambas-user mailing list
> >> > Gambas-user at lists.sourceforge.net
> >> > https://lists.sourceforge.net/lists/listinfo/gambas-user
> >> >
> >> ------------------------------------------------------------------------------
> >> All of the data generated in your IT infrastructure is seriously valuable.
> >> Why? It contains a definitive record of application performance, security
> >> threats, fraudulent activity, and more. Splunk takes this data and makes
> >> sense of it. IT sense. And common sense.
> >> http://p.sf.net/sfu/splunk-d2d-c2
> >> _______________________________________________
> >> Gambas-user mailing list
> >> Gambas-user at lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/gambas-user
> >
> > --
> > Regards,
> > Demosthenes
> >
> >
> > ------------------------------------------------------------------------------
> > All of the data generated in your IT infrastructure is seriously valuable.
> > Why? It contains a definitive record of application performance, security
> > threats, fraudulent activity, and more. Splunk takes this data and makes
> > sense of it. IT sense. And common sense.
> > http://p.sf.net/sfu/splunk-d2d-c2
> > _______________________________________________
> > Gambas-user mailing list
> > Gambas-user at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/gambas-user
> >
> 
> 
> 

-- 
Regards,
Demosthenes