[Gambas-user] MaskBox.Mask

[Patrik Karlsson]

Thank you for your input.
I will keep my code since I prefer the protection for CTRL-V over the
optimization for a very short string.
However, the _KeyPress and Stop Event will come in handy in another place,
thanks!

/Patrik


2014-04-27 16:26 GMT+02:00 Tobias Boege <taboege at ...626...>:

> On Sat, 26 Apr 2014, Patrik Karlsson wrote:
> > Hi,
> >
> > today I am using TextBox_Change event to reject | characters.
> >
> > Public Sub txtName_Change()
> >
> >   If String.InStr(Last.Text, "|") > 0 Then
> >     Last.Text = Replace(Last.Text, "|", "")
> >   Endif
> >
> > End
> >
> > I guess MaskBox can do this much simplier, but how, what Mask?
> >
>
> No, MaskBox is there to force formatted input. But the Mask property is way
> weaker than regular expressions. The main point is that you can only
> describe fixed-length strings (plus/minus the finite number of #/9 fields
> in your Mask). So wherever you want to forbid "|", you would write "[^|]"
> but that also consumes any character but "|". So you cannot accept
> arbitrary
> strings but only strings of a length equal to the times you forbid the "|"
> character.
>
> Your initial approach was much better but one thing: if you use InStr()
> each
> time the TextBox changes, you will scan the whole contents each time they
> change but you only want to capture inputs, right? If you tell your user
> not
> to use Ctrl-V or stuff, you can do:
>
> Public Sub txtName_KeyPress()
>   If Key.Text = "|" Then Stop Event
> End
>
> Regards,
> Tobi
>
> --
> "There's an old saying: Don't change anything... ever!" -- Mr. Monk
>
>
> ------------------------------------------------------------------------------
> Start Your Social Network Today - Download eXo Platform
> Build your Enterprise Intranet with eXo Platform Software
> Java Based Open Source Intranet - Social, Extensible, Cloud Ready
> Get Started Now And Turn Your Intranet Into A Collaboration Platform
> http://p.sf.net/sfu/ExoPlatform
> _______________________________________________
> Gambas-user mailing list
> Gambas-user at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gambas-user
>