Function: error()

Adds a error message into the Log and displays the message to the user. This function is often used when creating a model and trying to work out why an Expression is not behaving as expected.

The Detail field of the Log Message will contain a list of the current values of any Attributes, Pipes and $-Variables which are relevant in the context of the Expression.

Syntax

error(message)

Examples

ifNull (in.rate, error("Missing rate") )

This example adds a message to the Log if no rate is found.

See Also

• Functions