Welcome to the WinForms feedback portal. We’re happy you’re here! If you have feedback on how to improve the WinForms, we’d love to hear it!

  • Check out the features or bugs others have reported and vote on your favorites. Feedback will be prioritized based on popularity.
  • If you have feedback that’s not listed yet, submit your own.

Thanks for joining our community and helping improve Syncfusion products!


In the input Excel document, chart's IsSeriesRow option is set to TRUE and chart's data first and last columns are equal in its data range. While parsing the charts, XlsIO adds one number to the first column of chart's data range by default, if IsSeriesRow option is set to TRUE. So the first column is greater than the last column, that throws the Exception.