VOVishal Omprasad Syncfusion Team January 13, 2023 11:46 AM UTC
"Thank you for reaching out to us. We understand that you would like to change the foreground and background color of the SfNumericUpDown control when the control is disabled. Unfortunately, this is not a feature currently supported by our SfNumericUpDown control. If you have any further questions or concerns, please do not hesitate to reach out to us. We are always happy to help."