--- In flexcoders@yahoogroups.com, "polestar11" <[EMAIL PROTECTED]>
wrote:
>
> Hi there
>
> I have an ArrayCollection value in my model class, which I would
like
> to run through a formatter function in my view. This method works
with
> a string, but performs strangely for a collection, where:
> 1) The format function is never called on update
> 2) The bound control reflects the update if I return the
> ArrayCollection reference from the function, and doesn't reflect the
> update if I return a reference to a different object (even though
the
> function is never called)
>
>
> View:
> -------------------- snip ---------------------------
> // formatting function
> public function formatTree(data:ArrayCollection) {
> data.addItem(new MoveVO());
> return data;
> }
> -------------------- /snip ---------------------------
> -------------------- snip ---------------------------
> // tree control
> <mx:Tree id="moveTree" x="203" y="2"
> dataProvider="{formatTree(model.currentMoves)}" labelField="text"
> height="190" width="193"></mx:Tree>
>
>
> -------------------- /snip ---------------------------
>
> I have also tried using a <mx:Binding> tag to perform the operation,
> as well as Paul Williams 'smallest tag'*, both of which do not
reflect
> an update to the ArrayCollection value. Trying to follow up on this
in
> the documentation I found the following, which seems to imply that
the
> formatting function should work:
>
> "You can use ActionScript functions as the source of binding
> expressions. You usually do this when using a bindable property as
an
> argument of a function. When the bindable property changes, the
> function executes, and the result is used in the binding
destination ..."
>
> Regards
> Tracy
>
>
*http://weblogs.macromedia.com/paulw/archives/2006/05/the_worlds_smal.
cfm
>
I'm having what might be a related problem, calling a formatter
within a labelfunction applied to an editable dataGrid column. Here
is the code:
public function display(datum:Object,column:DataGridColumn):String{
if(datum.name=="Name2"){
return Dollars.format(datum.value);
}
else{
return String(datum.value)+"%";
}
}
And the formatter...
<mx:CurrencyFormatter id="Dollars" precision="0"
rounding="none"
decimalSeparatorTo="."
thousandsSeparatorTo=","
useThousandsSeparator="true"
useNegativeSign="true"
currencySymbol="$"
alignSymbol="left"/>
The home-brewed % format thing works fine; the formatter fn doesn't
and is unprdictable, wanting to be zero, forgetting the entry, etc.
Any ideas welcome.
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