How to resolve Type Initialization Exception in Xamarin.iOS?

This exception occurs when the linker option is set to link all assemblies. As per the linker behavior, sometimes the linker will remove code that you might have called dynamically. In XlsIO.Portable, we have handled reflections, which cause the issue.

We recommend to set the following argument in Additional mtouch arguments to skip the XlsIO.Portable from linking process. 

Example:  

Additional mtouch arguments: --linkskip=Syncfusion.XlsIO.Portable 

Screenshot: 

Alternative Way:

This can also be resolved by setting the linker behavior option to Link framework SDK assemblies only.
  

Refer to the link below for more information.

Xamarin Documentation link: 

https://developer.xamarin.com/guides/ios/advanced_topics/linker/

Take a moment to peruse the documentation where you can find basic Excel document processing options along with the features like import and export data, chart, formulas, conditional formatting, data validation, tables, pivot tables and protect the Excel documents, and most importantly, the PDF, CSV and Image conversions with code examples.

Conclusion

I hope you enjoyed learning about how to resolve Type Initialization Exception in Xamarin.iOS.

You can refer to our XIsIO’s feature tour page to learn about its other groundbreaking features. Explore our UG documentation and online demos to understand how to manipulate data in Excel documents.

If you are an existing user, you can access our latest components from the License and Downloads page. For new users, you can try our 30-day free trial to check out XlsIO and other Syncfusion® components.

If you have any queries or require clarification, please let us know in the comments below or contact us through our support forums, Support Tickets, or feedback portal. We are always happy to assist you!