Many thanks everyone, I will give this a go. 

Where do I find 'Inside TiddlyWiki' sounds like that might be useful. I 
remember TiddlyTools from my v2 days some years back! 

All the best everyone,

Mark.

On Monday, 30 May 2016 20:36:47 UTC+1, Eric Shulman wrote:
>
> On Sunday, May 29, 2016 at 2:49:13 PM UTC-7, Mark Armitage wrote:
>>
>> I would like to have a single tiddler which holds a data dictionary, say:
>> TEST
>>    AA:1
>>    BB:0
>>    CC:0
>> Then in another tiddler, have a checkbox that gets it's value from the 
>> data dictionary (TEST), so say:
>> CB
>>   [x] AA
>>   [ ] BB
>> I think that it should be something like {{TEST##AA}} and if the value is 
>> 1 then check the box, otherwise uncheck it.
>>
>
> The $checkbox widget only supports toggle of tags or field values.  You 
> can, however, achieve the effect you want, by creating a macro that uses 
> $reveal, $button and $action-setfield (along with a little bit of HTML), 
> like this:
>
> \define toggleindex(tid,name,label)
> <$reveal state="""$tid$##$name$""" type="nomatch" text="1">
>    <$button class="tc-btn-invisible"> <input type="checkbox">$label$
>       <$action-setfield $tiddler="""$tid$""" $index="""$name$""" $value=
> "1"/>
>    </$button>
> </$reveal>
> <$reveal state="""$tid$##$name$""" type="match" text="1">
>    <$button class="tc-btn-invisible"> <input type="checkbox" checked=
> "checked">$label$
>       <$action-setfield $tiddler="""$tid$""" $index="""$name$""" $value=
> "0"/>
>    </$button>
> </$reveal>
> \end
>
> Place the above in a tiddler (e.g., "$:/macros/tiddlytools/toggleindex"), 
> and tag it with "$:/tags/Macro".
>
> To use the macro, write something like:
> <<toggleindex "SomeTiddler" "somename" "click here to toggle">>
>
> enjoy,
> -e
> Eric Shulman
> TiddlyTools / ELS Design Studios
> InsideTiddlyWiki: The Missing Manuals
>
>
>
>

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