DataFieldUsage enumeration
Library: TFORMer9Lib
Describes the usage of a DataField within a FormLayout.
Values
| Name | Explicit initializer | Description |
|---|---|---|
DataFieldUsage_NotUsed | = 0 | The DataField is defined within the Project but is not used in the FormLayout. |
DataFieldUsage_Normal | = 1 | 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. |
DataFieldUsage_Calculated | = 2 | 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. |
DataFieldUsage_Parameter | = 3 | 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). |
DataFieldUsage_Invalid | = 4 | Invalid. |