Constants (Calculation expression)

Within calculation expressions constants are also available with the syntax "$constantname".

The constants listed below are supported:

Syntax	Importance
$input	Representative for the input data of the calculation expression. What the input data is depends strongly on the context in which the calculation is evaluated. For example, in a label expression for data grid cells, $input returns the entire row object. The context of the input data is usually explained by the respective entry in the manual.
$null	Stands for "no value".
$true	Returns the Boolean value true.
$false	Returns the Boolean value false.