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VS2019 - with 18.1460.0.42,

Example Syncfusion SpreadsheetDemo_2017 throw Exception with

NullReferenceException: Object reference not set to an instance of an object.

 at Syncfusion.Windows.Tools.Controls.ComboBoxAdv.UpdateText()

   at Syncfusion.Windows.Tools.Controls.ComboBoxAdv.OnApplyTemplate()

   at System.Windows.FrameworkElement.ApplyTemplate()


in Designer and at Startup.

My prog do the same, after change from V17 to 18.

Syncfusion Example GraphicCellDemo_2017 is working.

it is working when FormulaBarVisibility="Collapsed". Other Setting than FormulaBarVisibility="Collapsed" bring Exception as described above.