You should be able to do something simple like:
rainfallChart.invalidateData();
or
rainfallChart.invalidateSeries();
which are both specific to charts. The more general rule of thumb is
to call invalidateDisplayList() to force a component to refresh.
On Mon, Jun 16, 2008 at 1:33 PM, <[EMAIL PROTECTED]> wrote:
> I have an issue, hoping that someone here can point me in right direction.
> Google searches have failed me...
>
> I have line chart that I want to control dynamically and add/remove series.
> I have seen the Flex cookbook code that does this with column charts, and I
> have been able get this to work with line charts just fine.
>
> However, my situation is that I want to have different dataProviders for some
> of the series I add. When I set the dataProvider dynamically, it appears to
> have no effect on the data (either the data does not show, or if there is a
> dataProvider associated with the chart, the series will pull data from that
> provider). It's acting as if it is ignoring my attempts to change the
> dataProvider.
>
> Here is some relevant sample code where I try to enhance the cookbook
> columnseries example to look at alternative source.
>
> private function onComplete():void
> {
> //initialize our clustered ColumnSet
> columnSet = new ColumnSet();
> columnSet.type = "clustered";
>
> ....
>
>
> afternoonSeries = new ColumnSeries();
> afternoonSeries.yField = "afternoonRainfall";
> afternoonSeries.xField = "day";
> afternoonSeries.displayName = "Afternoon Rainfall";
> afternoonSeries.dataProvider = chartDP; // I added this line to set a
> dataProvider
>
> duskSeries = new ColumnSeries();
> duskSeries.yField = "duskRainfall";
> duskSeries.xField = "day";
> duskSeries.displayName = "Dusk Rainfall";
> duskSeries.dataProvider = chartDPAlternative; // I added this line
> to set a different dataProvider
>
> updateSeries();
>
> }
>
>
> private function updateSeries():void
> {
> //reinit columnSet
> columnSet.series = new Array();
>
> ....
> columnSet.series.push(afternoonSeries);
> columnSet.series.push(duskSeries);
>
> .....
>
>
> // put columnSet in an array and set to
> // the chart's "series" attribute
> rainfallChart.series = [columnSet];
> }
>
>
> Situation 1) My legend shows the two series, but no data is graphed
>
> <mx:ColumnChart id="rainfallChart" >
> <mx:horizontalAxis>
> <mx:CategoryAxis categoryField="day" />
> </mx:horizontalAxis>
> <mx:verticalAxis>
> <mx:LinearAxis minimum="0" maximum="14" />
> </mx:verticalAxis>
> </mx:ColumnChart>
> <mx:Legend dataProvider="{rainfallChart}" />
>
>
> Or, Situation 2) In the case below, I get data, but the data in the 2 series
> come strictly from chartDP
>
> <mx:ColumnChart id="rainfallChart" dataProvider="{chartDP}">
> <mx:horizontalAxis>
> <mx:CategoryAxis categoryField="day" />
> </mx:horizontalAxis>
> <mx:verticalAxis>
> <mx:LinearAxis minimum="0" maximum="14" />
> </mx:verticalAxis>
> </mx:ColumnChart>
> <mx:Legend dataProvider="{rainfallChart}" />
>
>
>
> ----------
> So, when I try to attach a dataProvider dynamically to a series, is there
> some sort of invalidate event I am supposed to initiate? Has anyone else
> tried dynamic replacement of dataProviders on series?
>
> Thanks in advance for any help you may be able to provide.
>
> Brad Wiederholt
> [EMAIL PROTECTED]
>
>
>
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>
>
--
Darin Kohles
RIA Developer
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