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Accessing Collection through another property
Message
From
12/08/2003 10:29:48
 
General information
Forum:
Visual FoxPro
Category:
Other
Miscellaneous
Thread ID:
00819334
Message ID:
00819353
Views:
14
>>Hi
>>
>>I need to access the Item in a collection via another property's access method but it doesn't like it at all:
>>
>>
?this.Item(1) && Fails
>>
>>Because I have to specify the () it thinks I'm trying to access an array and errors, I need to use an Access Method in the property to return the Item, but it doesn't work.
>>
>>Any ideas?
>>
>>Thanks
>
>Kev,
>If the property you were trying to access was an array property, this access should should work. The index would be passed to the Access method and you could use that index to get the correct item in the collection.
>
>HTH.

Larry

Thanks, I did actually try that (but wanted confirmation), now that you've suggested it, I have a problem doing it this way, and I think this may be down to the fact the property is an array, as you know Items in a collection can be accessed via their Key or the index, so I wrote the following:
*-------------------------------------------------------------
*Method	: Item_Access
*Author	: Kevin Lawrence
*Date	: 12/08/2003
*-------------------------------------------------------------
*Desc	: Return Item from the List Collection (only accepts int)
*-------------------------------------------------------------
LPARAMETERS tuIndex
LOCAL lnIndex AS Integer
lnIndex = tuIndex

*Get Key if character
IF TYPE("tuIndex") = "C"
	lnIndex = this.List.GetKey(tuIndex)
ENDIF

*Ensure Key exists
IF lnIndex > 0 AND this.List.Count > 0
	RETURN this.List.Item(lnIndex)
ENDIF
But this.List.GetKey(tuIndex) returns 0 and I can't get this to work unless I specifiy the index, but I need to specify the Key too.

Any ideas, should be easy to replicate.

Thanks
Kev
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