Datagrid: How get column data from other column behavior

Andre.Bisseret Andre.Bisseret at inria.fr
Fri Apr 9 14:48:56 EDT 2010


Thanks a lot Trevor for you advices

Am learning more and more about data grid (and arrays); very exciting  
indeed ;-)))

André

Le 9 avr. 10 à 17:58, Trevor DeVore a écrit :

> On Apr 9, 2010, at 10:46 AM, Andre.Bisseret wrote:
>
>> Assuming I have a datagrid "cellar" with
>>
>> Appellation / Price
>> Bourgogne / 43
>> Bordeaux / 38
>> Aubance / 25
>>
>> I want to change the price of one wine
>>
>> 1 - the user has to select a line then
>>
>> put the dgHilitedLines of grp "Cellar" into tLine
>> put the dgDataOfLine[tLine] of grp "Cellar" into theDataA
>> ask "What's the price?" with theDataA["Price"]
>> put it into theDataA["Price"]
>> set the dgDataOfLine[tLine] of group "Cellar" to theDataA
>
> You could also just use SetDataOfIndex here instead of extracting  
> the row array, setting a key and reassigning it.
>
>> 2 - Now I would like to be able to change a price but starting from  
>> a given wine' name, not from the selection of a its line (not  
>> really needed currently, but for learning more about datagrid ;-))
>>
>> I found the following; for example I have to change the price of  
>> the Aubance:
>>
>> put the dgData of grp "cellar" into theDataA
>> repeat for each key theIndex in theDataA
>> if theDataA[theIndex]["Appellation"] is "Aubance" then
>> Ask "What's the new price for Aubance?"
>> put it into theDataA[theIndex]["Price"]
>> end if
>> set the dgData of grp "cellar" to theDataA
>> end repeat
>
> For simple finds you can use FindIndex.
>
> dispatch "FindIndex" to group "cellar" with "Appellation", "Aubance"
> put the result into theIndex
>
> if theIndex > 0 then
>    -- change pricee of row.
> end if
>
> API page: http://lessons.runrev.com/spaces/lessons/manuals/datagrid/lessons/7344-Data-Grid-API
>
> -- 
> Trevor DeVore
> Blue Mango Learning Systems
> ScreenSteps: http://www.screensteps.com
> Releasable Revolution Resources for Developers: http://revolution.bluemangolearning.com
> _______________________________________________
> use-revolution mailing list
> use-revolution at lists.runrev.com
> Please visit this url to subscribe, unsubscribe and manage your  
> subscription preferences:
> http://lists.runrev.com/mailman/listinfo/use-revolution






More information about the Use-livecode mailing list