RangeError (index): Invalid value: Not in inclusive range 0..88: 89

Question

Hello. I'm trying to use SfCartesianChart but I get the following error:I took off the maximum value property and removed visibleMaximum so that I could take advantage of enableAutoIntervalOnZooming. Obviously the chart renders empty, but when I tap and pan through the data, the chart populates correctly. I guess its re-painting and then knows how to paint the chart.Is there anything that I'm probably doing wrong?
════════ Exception caught by rendering library ═════════════════════════════════
RangeError (index): Invalid value: Not in inclusive range 0..113: 114
The relevant error-causing widget was
SfCartesianChart
lib/…/chart/chart_widget.dart:147

════════ Exception caught by rendering library ═════════════════════════════════
The following RangeError was thrown during paint():
RangeError (index): Invalid value: Not in inclusive range 0..88: 89

The relevant error-causing widget was
SfCartesianChart
lib/…/chart/chart_widget.dart:147
When the exception was thrown, this was the stack
#0      List.[] (dart:core-patch/growable_array.dart:254:60)
#1      calculatePathSeriesRegion
package:syncfusion_flutter_charts/…/common/renderer.dart:507
#2      SeriesRendererDetails.calculateRegionData
package:syncfusion_flutter_charts/…/chart_series/series_renderer_properties.dart:450
#3      SplineAreaChartPainter.paint
package:syncfusion_flutter_charts/…/series_painter/spline_area_painter.dart:226

Todd · Answer

I guess I should mention I've updated to 19.3.46

Rokesh Karthikeyan · Answer

Hi Todd, 
 
Greetings from Syncfusion. We have analyzed your query and we have tried to reproduce the reported scenario, unfortunately we were unable to replicate the reported issue on our side. Also, we have attached the sample we had used for replicating the issue below. 
 
Sample:https://www.syncfusion.com/downloads/support/forum/169913/ze/forum_169913-1218505438 
We suspect you might have zoomed the chart where the data is not available, so after panning the data might be visible. If this is not your case, we kindly request you trying to reproduce the issue in the above sample and provide information on how to replicate your scenario at our end, this will be much helpful in providing the solution sooner. 
 
Regards, 
Rokesh.

Todd · Answer

Hrm. It seems when I have null values, thats when I have problems. Also I noticed that when I tried to reproduce the problem using the example, I couldn't but EmptyPoints gap is being ignored....Still not sure why my graph refuses to paint when i have null values.

Attachment: forum_169730_63c95d32.zip

Todd · Answer

If I specifically set

emptyPointSettings:
                                EmptyPointSettings(mode: EmptyPointMode.zero),

then my chart renders, but my gaps are zeros, obviously.

But as soon as I return to the default .gap, which is what I want, I get the error:

RangeError (index): Invalid value: Not in inclusive range 0..88: 89

and if I set visibleMaximum on my Y axis which can have null values, then the chart also renders (with gap mode enabled).

Yuvaraj Gajaraj · Answer

Hi Todd, 
 
We are analyzed your reported issue regarding getting range exception when back to the empty point mode gap. But the reported issue is not getting reproduced at our end, so kindly get back to us with more information on the replication procedure along with screen recording so that will be more helpful to provide the solutions sooner. 
 
Regards, 
Yuvaraj.

Todd · Answer

Are you seeing a chart populate right away? I am not. This is the same behavior I see in my other real app.https://streamable.com/zvb4gs

Todd · Answer

If possible can you show an example of SplineAreaSeries with null values in the X axis when the axis type is DateTime?

Yuvaraj Gajaraj · Answer

Hi Todd, 
 
Greetings from Syncfusion. We have analyzed your scenario, and we are able to replicate the reported issue regarding getting exception when set the emptyPointMode.gap. We will resolve this and include the fix in our upcoming weekly patch release which is expected to be rolled out by 2nd November 2021. We will update you once the release is rolled out and we appreciate your patience until then.  
  
Regards, 
Yuvaraj.

Todd · Answer

Thank you ! 🥳

Yuvaraj Gajaraj · Answer

Hi Todd, 
 
As stated earlier, we will include the fix for the reported scenario next weekly patch release which is expected to be rolled out by 2nd November 2021.  
  
Regards, 
Yuvaraj.

Yuvaraj Gajaraj · Answer

Hi Todd, 
 
We regret for the inconvenience. Due to some technical glitches, we are unable to include in the weekly patch release and the fix will be moved to vol 3 SP 1 release which is expected to be rolled out November 10, 2021. We appreciate your patience until then. 
 
Thanks, 
Yuvaraj.

Todd · Answer

Still anticipated for tomorrow?

Yuvaraj Gajaraj · Answer

Hi Todd, 
 
Since the vol 3 SP 1 release is postponed to 12 Nov 2021. We will let you know once the release is rolled out. 
 
Regards, 
Yuvaraj.

Todd · Answer

Ok, we are looking forward to it. Please let us know if it will be postponed again?

Sriram Kiran Senthilkumar · Answer

Hi Todd, 

The release won’t be postponed again, and as mentioned earlier, we will let you know once the release is rolled out. 

Regards, 
Sriram Kiran.

Yuvaraj Gajaraj · Answer

Hi Todd, 
  
Thanks for your patience. The reported issue regarding getting exception when set the emptyPointMode.gap has been fixed and rolled out in our SP release. To resolve this, kindly upgrade the chart widget package to the latest version below.   
  
Version: https://pub.dev/packages/syncfusion_flutter_charts/versions/19.3.53 
  
Regards,  
Yuvaraj.

Todd · Answer

Thank you. The latest release

Yuvaraj Gajaraj · Answer

Hi Todd, 
 
Most welcome. Please get back to us if you require further assistance. We are always happy in assisting you.  
  
Regards, 
Yuvaraj.