Reference > Functions reference > Design functions > FieldStyle
Returns the field formatting applied to fieldName on layoutName in fileName.
fileName - the name of an open database file (local or remote).
layoutName - the name of a layout in the specified database file.
fieldName - the name of a field on the specified layout.
Important  See Design functions for information about literal text parameters.
Data type returned 
Originated in 
FileMaker Pro 6.0 or earlier
If the field has a value list associated with it, the FieldStyle function also returns the name of the value list.
A standard field returns Standard.
A standard field with a vertical scroll bar returns Scrolling.
A drop-down list returns Popuplist.
A pop-up menu returns Popupmenu.
A checkbox returns Checkbox.
A radio button returns RadioButton.
A drop-down calendar returns Calendar.
On the Data Entry layout in the Customers database file, FieldStyle(“Customers”;“Data Entry”;“Current Customer”) returns RadioButton Yes/No List when the Current Customer field is formatted as a radio button and is associated with the value list named Yes/No List.
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields
Using operators in formulas