Paul - Item renderers, in the chart (as elsewhere in the framework), get recycled. Which means that the same item renderer may get assigned different data items at different times. My bet as to what's happening here is: in your custom item renderer.data property, you're not calling invalidateDisplayLIst(). The first time your renderer gets data, it displays correctly, because it's never been updated so it will go through an initial update pass. But when its data property is assigned to a different value, it doesn't automatically get updated unless you explicitly say that you need updating, so you never see the rendering change on screen. The datatip is working correctly because you actually update the data tip in your set data function. That's my first guess at the problem. If that doesn't solve it, we'll have to dig deeper. Ely. From: flexcoders@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of paultwright Sent: Tuesday, April 10, 2007 12:13 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Re: Filtered data in Plot Series --- In flexcoders@yahoogroups.com <mailto:flexcoders%40yahoogroups.com> , "Ely Greenfield" <[EMAIL PROTECTED]> wrote: > > Hi Paul. Off the top of my head, I don't see any reason why that should > be happening. Can you share a simple test case? > > Ely. I've tried to simplify this test case a bit. It involves "scrolling" of the data. I'm modifying the min & max values for the DateTimeAxis. You can view my "simplified" example @ http://programming.wrighthomeenterprises.com/Flex/Chart.html The source is also available via the standard View Source mechanism. You'll observe two PlotSeries with the same data provider, etc... The only difference is in the value of the filterData attribute on the PlotSeries. As you scroll left to 10/8 & 10/9 entries, you'll see the disparity. The interesting part is that the tool tips for each of the plot items is correct in both cases. This may simply be a result of my limited experience in writing a custom item renderer here. I couldn't find an easier way to do this. If you see a glaring error in my custom item renderer implementation, I would be grateful regarding any revelation. Thanks in advance for any assistance with this problem! Paul
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