Hi Sanjay,

2015-03-10 14:47 GMT+01:00 Sanjay Minni <sm@planage.com>:

sorry folks ...

so back to terra firma ...

1. Is there any way to query an object to finds its index value in the
original collection ...
say when all the objects from a collection are displayed and user clicks on
one item - I want to locate the object back in the collection. Knowing the
index for me would be most efficient.

aCollection indexOf: anElement

You will often find this code in list-related gui objects.
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2. ... also Is there any way to know if I am on the last element ...

aCollection last == anElement
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otherwise I will have to explicitly store the index values ...

If you do it more than once per iteration of the collection, it is probably faster to store the indexes. But I wouldn't do it for anything GUI related; indexOf: is efficient enough.

Regards,

Thierry�