Indicates the maximum length (in characters) of the form field's data value.
An integer (1 to 32000)
If the FieldLen exceeds the visual space available for displaying data in this form field (see Wdth, Hght, WdgWdth, and WdgHght), then the data can be scrolled through the visual space.
Hght, WdgHght, WdgWdth, Wdth