Currently, it is not possible to conditionally add or remove an HTML attribute using the Attributes property. The only way to achieve this behavior is through custom JavaScript.

It would be very useful to have the ability to conditionally render an attribute based on an expression, similar to how the Value property currently supports expressions. This would allow developers to avoid rendering empty or unnecessary attributes in the generated HTML.

The feature could work as illustrated below:

This enhancement would be particularly valuable for accessibility requirements, enabling developers to more easily implement dynamic ARIA attributes and other accessibility-related properties, ultimately improving development efficiency and speeding up delivery.