Steema Central

Since it appears that TeeChart for Xamarin.Android doesn't support scroll pager, I'm wondering if there is any way to simulate it? Perhaps using a transparent, movable Gantt that overlays my "overview" series and update the min/max of the "detail" series based upon the Gantt position? Any other ideas?

Thanks,
Jeremy

The Android version lacks the GanttTool, and thus it doesn't seem that there is any way to drag the Gantt rectangle. The RectangleTool is also missing, so that doesn't appear to be a viable option. The ColorBand tool is present, however I don't immediately see a way to make it draggable. (I'm also having trouble binding it to my horizontal axis, although I'm sure this must be possible).

Any suggestions to achieve this effect on Android will be much appreciated!

Hi Jeremy,

I've added the possibility to implement the ScrollPager tool for TeeChart .NET for Xamarin.Android (TM63016697).

In the meanwhile, have you tried to use the touch events to implement your own dragging features?
Also, I think the SubChart tool is usable in TeeChart for Xamarin.Android.
Then, you could try to combine this tool and the touch events to implement a custom ScrollPager tool.

I got this working with mouse events and a ColorBand on WPF, which should port over to touch events and ColorBand on Android. Thanks!

Hi,

Great! Thanks for telling us how have you solved it!

Hi Jeremy,

We are also working on this issue. Would you please share your code with us? We would appreciate your assistance!
Thank you!

Hi Support,

How can I also implement this by the way Jeremy mentioned?

Hi benlu,

The ScrollPager tool bascially consists of a SubChart tool below the main chart. It is in synch with the main chart setting its bottom axis scales via the ColorBand tool start and end values, which determine the range that will be plotted in the main chart. You should use touch events to change ColorBand start and end values. Have you tried that? Which difficulties did you come across?

can you show me a sample?

Hi benlu,

There's a problem with SubChartTool (bug ID87) that doesn't allow doing this for now. We will try to fix the problem.