TFormer_ProjectVarItGetUsage

EVarUsage TFormer_ProjectVarItGetUsage(HTFORM pInstance, HPROJECTVAR_ITERATOR hProjectVarIt, ERRCODE * peCode);

Returns the usage of the DataField specified by an iterator.

A FormLayout utilizes user- or system DataFields as place-holders for dynamic data. Values for such DataFields are usually provided by the user (entered manually in TFORMer Designer) or imported from a DataSource. Each DataField can be used on its own, as part of expressions (e.g. in a text- or bar-code element) or it may be computed within the FormLayout itself (e.g. pre- and post-expressions). This method queries the FormLayout and returns an enumeration (see EVarUsage) regarding the use of a specific DataField in the FormLayout.

Returns

The usage of the DataField in the current FormLayout. This value is only valid if peCode is ErrOk (0).

Parameters