On Sun, Dec 5, 2010 at 09:00, Marco Pompili <[email protected]> wrote:
>
> If i use the qx.data.Array() wrapper i get the error above:
>
> this.__rowArr[rowIndex] is undefined
> return this.__rowArr[rowIndex][columnIndex];
>
> I'm missing something. I guess i'm missing a row ?
>
You're not just missing a row; I think you're missing a concept.
qx.data.Array() does not (and can not, in JavaScript) override the []
operator. Using the .push method of a qx.data.Array instance pushes the
value onto an internally-maintained array. The equivalent of arr[23] = 42;
using qx.data.Array would be arr.setItem(23, 42); and to retrieve that 42,
would be var x = arr.getItem(23);. You can't use the [] operator to retrieve
values from a qx.data.Array so when table accesses this.__rowArr[rowIndex]
it finds nothing there. (That would be an attempt to access the rowIndex *
property* of the qx.data.Array instance.
Table expects a native array, not a qx.data.Array. What you have in your
sample code, using the native array, is the correct way to do it.
> As Derrel is saying i want to get much browser indipendence as possible.
> Using the qx.lang.Core.arrayForEach class should help with that as I
> understand.
>
> The code works perfectly, so thank you both for your help, that's just this
> thing with the qx.data.Array() class that makes me curious about what is
> the
> problem.
>
Hopefully I've cleared that up for you.
Derrell
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