**Read only if** makes a field read only if a condition is met.

Supports the following conditions: Equal, Not equal, Less than, Less than or equal, Greater than, Greater than or equal, Is empty, and Is not empty.

Also supports **Compound logic**. Logical operators are evaluated from left to right, and in the following order:

- Evaluate all
**less than**and**greater than**, next - Evaluate all
**equals to**, next - Evaluate all logical
**AND**, next - Evaluate all logical
**OR**, next.