Chart Won't Display

[pktrkts]

Hi,

I have a class hierarchy that looks complex. I have a ChartViewBase object in a UIView. I have a ChartViewControllerBase, which is a base class for all the chart view controllers. I have a LineAndBarChartViewControllerBase, a BarChartViewControllerBase, and a class I'll call DerivedBarChartViewController. Each of these classes has code in it that contributes to the chart, with the bulk of the code in LineAndBarChartViewControllerBase. I have the UIView as the delegate of the ChartViewBase object (though I'm not sure this is correct). Any ideas on why the chart won't display? All I see is a black box, and I've spent a few hours debugging and getting nowhere. Any ideas on what I might be doing wrong would be greatly appreciated. Thanks!

Sincerely,
Sean

[liuxuan30]

usually you need to post a demo project so we know what's going on.
have a ChartViewBase object in a UIView does not sound good. You better ask on SO, as this is not about the library. It's about your code problem.