THROW
THROW is used to signal the occurrence of an anomalous situation (exception) during the program execution.
THROW
Exception (Type of class filter)
Parameters
Exception
Required. The exception object. Provides information about the exception to be thrown.
Remarks
The Throw statement throws an exception that you can handle with structured exception-handling code (Try…Catch…Finally) or unstructured exception-handling code (If %Error).
Example
Throw *new System.Exception( "Invalid property value")