Hi Community,

As a workaround for BorderColor, you can use BorderBrush.

For example, setting it to Red

In XAML

<telerik:RadComboBox BorderBrush="Red" .../>

or in C#

var rcb = new RadComboBox();
rcb.BorderBrush = new SolidColorBrush(Colors.Red);

At runtime:

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.

Regards,
Lance | Manager Technical Support
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