As a workaround for BorderColor, you can use BorderBrush.
For example, setting it to Red
or in C#
var rcb = new RadComboBox();
rcb.BorderBrush = new SolidColorBrush(Colors.Red);
Note: The BorderBrush property expects a value of type Brush. If you are using expanded properties, or C#, you must define the type (e.g., SolidColorBrush). See Microsoft documentation for more information => Brushes - .NET MAUI | Microsoft Docs.
Lance | Manager Technical Support
The Premier Dev Conference is back!
Coming to you live from Progress360 in-person or on your own time, DevReach for all. Register Today.