Select the Evaluate option to allow evaluation of dynamic, indirect expressions (SBN expressions). Enter an SBN expression in the corresponding field using the square bracket notation [ ]. The Evaluate option lets you compute and evaluate dynamic property settings at runtime instead of assigning static values at design time.
For some property items, the Evaluate option is selected by default.
Enabling
or disabling evaluation for a property
In the Properties window, right-click the property name that you want to evaluate at runtime.
Select Evaluate.
