Specifies the name of the business class method used to determine whether the Conditional Appearance rule is currently active.
NuGet Package: DevExpress.Persistent.Base
A string specifying the name of the method used to determine whether the rule is active.
When you need to create a complex rule that cannot be specified via the IAppearanceRuleProperties.Criteria property, you can implement a business class method that takes no parameters and returns a Boolean value specifying whether the rule is currently active. In this instance, leave the Criteria property unspecified and set the Method property to the name of the implemented method.