Enumerations.DataFieldUsage Enum Reference

Describes the usage of a DataField within a FormLayout. More...

Public Attributes
	Calculated
	The DataField is computed automatically. More...
	Invalid
	Invalid.
	Normal
	A normal DataField. More...
	NotUsed
	The DataField is defined within the Project but is not used in the FormLayout.
	Parameter
	This is a writable system-DataField used by the FormLayout. More...

Detailed Description

Describes the usage of a DataField within a FormLayout.

Member Data Documentation

Calculated

The DataField is computed automatically.

The DataField is in use by the FormLayout and its value is modified. Usually this is done via pre- or post-expressions. Therefore the value for this DataField may not be provided by an external application or by the user.

Normal

A normal DataField.

The DataField is in use by the FormLayout, its value is not modified. The DataField is just used as part of expressions or directly in text-, bar-code or picture elements. Therefore the value for this DataField may be provided by an external application or by the user.

Parameter

This is a writable system-DataField used by the FormLayout.

The value of this system-DataField may be provided by an external application or by the user (e.g. tfDocumentName).