[Lazarus] RE : RE : RE : RE : @DBLookupControls users: call for test

[Marcos Douglas]

On Tue, Dec 13, 2011 at 6:05 AM, Ludo Brands <ludo.brands at free.fr> wrote:
>
>> > Sorry, I don't understand what you mean.
>> >
>>
>> In a dataset i have to fields: PreferredFruit and FallbackFruit.
>>
>> Both are indexed fields that lookup de display value in the
>> same dataset
>> Fruits
>>
>> I set the PreferredFruit to 1 (Orange) and FallbackFruit to 2 (Banana)
>>
>> Where the cursor of dataset Fruits should be?
>>
>
> The last one you selected. So, when user selects PreferredFruit, he can look
> at the the details of Fruits to help him in selecting the right fruit
> (customer hates red fruit and fruit with hard shells, so the user verifies
> color and shell type before selecting). Then he selects FallbackFruit. Same
> usage, verify Fruits details before selecting FallbackFruit, user is not
> interested in the details of Orange anymore.
>
> Your next question: where is the cursor in the dataset Fruits if I change
> the cursor in the customer dataset? Answer: Delphi selects the first key
> field in the dataset record (the one with lowest fielddefs index or fields
> index if no fielddefs). If the user wants another field, an AfterScroll on
> the customer dataset can fix that.

That is right.

Marcos Douglas