Hi Bean,
Thank you for using Syncfusion products.
We have modified the sample with the help of IValueConverter interface. In the updated sample you have directly bound the SelectedIndex property to Color. It is not possible to bind like this. So we have used the concept of IValueConverter and bound the SelectedItem property.
Please find the modified sample under the following location.
Please let us know if you have any queries.
Regards,
Sakthi
ColorPicker_73d5c8f7.zip