dataset_field_is_null function - Exportizer Documentation

Category:

Database related

General

Checks if the field has null value.

Syntax

dataset_field_is_null(
  StepNo Integer,
  FieldName String 
): Boolean

dataset_field_is_null(
  StepNo Integer,
  FieldIndex Integer 
): Boolean

Parameters

StepNo specifies the export step, in which the function must be calculated. It is used in HTML export context only; in other cases this parameter is ignored.

FieldName is the name of the field which value to check.

FieldIndex is the index (i.e. sequence number in the field mappings collection) of the field which value to check.

Return value

Type: Boolean. Returns True, when value of the field is null, and False in other cases.

Examples of using

dataset_field_is_null(1, 'CustomerName')