Re: [libreoffice-users] Coding: Radio Buttons don't work

Hi Xaver,

X Roemer schrieb:
> Hi,
>
> I use always the same mechanism to add radio buttons by code. Usually I
> add one after one, directly after each other, and they get grouped
> automatically. But this time I can choose more than one and the others
> don't get disabled. (See screenshot)
>
> I know, it's better to show some code, but it would be a bit too much,
> as the creation of widgets is splitted into several steps.
>
> My questions are:
> - Is there a mechanism to group radio buttons by code instead of adding
> them one directly after the other?
> - Can someone guess, what else can go wrong?

See 
https://wiki.openoffice.org/wiki/Documentation/BASIC_Guide/Control_Elements

There the last paragraph in section 'Option Buttons'
"To combine several option buttons in a group, you must position them 
one after another in the activation sequence without any gaps 
(Model.TabIndex property, described as Order in the dialog editor). If 
the activation sequence is interrupted by another control element, then 
OpenOffice.org automatically starts with a new control element group 
that can be activated regardless of the first group of control elements."

So this is different from option buttons in forms, where grouping is 
done by the name property.

I have tested, that you really get a grouping, when the TabIndex is 
consecutive. That happens automatically, when you insert them in that order.

You can change the property 'Tab index' after you have inserted a 
control, but that will change the other tab indexes too. You might want 
to have a list of the wanted tab order when designing the dialog and 
start changing at tab index 0.

You can set and change the property TabIndex as well inside your program 
before executing the dialog. But unless you insert option buttons newly 
(instead of setting visible) when running your program, I think, that 
generating the dialog controls in the correct order while designing the 
dialog is much easier.

Kind regards
Regina

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