SfChart throw null reference exception when application running on iOS

[Salih KARAHAN]

Hi all,

We use SfChart in our xamarin forms app. All components are working as well in android but in the ios sfchart components throw null exception and application is crashing. How I can fix this error? 

SfComponent version: 17.2.0.36

Xamarin froms version: 4.1.0.618606

  at Syncfusion.SfChart.iOS.SFChart.MeasureLegend () [0x0002d] in <45e49b78aad8463bacfc698a15a14b28>:0 

  at Syncfusion.SfChart.iOS.SFChart.UpdateChart () [0x00570] in <45e49b78aad8463bacfc698a15a14b28>:0 

  at Syncfusion.SfChart.iOS.SFChart.LayoutSubviews () [0x00006] in <45e49b78aad8463bacfc698a15a14b28>:0 

  at (wrapper managed-to-native) UIKit.UIApplication.UIApplicationMain(int,string[],intptr,intptr)

  at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.14.0.110/src/Xamarin.iOS/UIKit/UIApplication.cs:86 

  at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0000e] in /Library/Frameworks/Xamarin.iOS.framework/Versions/12.14.0.110/src/Xamarin.iOS/UIKit/UIApplication.cs:65 

  at FeedBackMobile.iOS.Application.Main (System.String[] args) [0x00001] in C:\Users\skarahan\Projects\FeedbackMobile\FeedBackMobile\FeedBackMobile.iOS\Main.cs:17 

[Salih KARAHAN]

Does anyone need any other information about of this issue? 🙄

[Rachel A]

Hi Salih, 

 

Thanks for contacting Syncfusion Support. 

 

We have checked with simple sample using provided version, but we are unable to reproduce the reported issue at our end. We have attached the prepared sample for your reference. Currently we are checking our source code based on the provided call stack.  

 

Sample - https://www.syncfusion.com/downloads/support/forum/146273/ze/146273-sample-746771370.zip 

 

In the meantime, can you please modify the attached sample and revert to us which will be helpful to investigate further.  

 

Regards, 

Rachel.