FormGroup

Container for labeled form controls inside a Form. Widgets are organised into "lines" (rows), each line carrying one or more labelled controls. Layout can be horizontal (label and control side-by-side) or vertical (label above control).

Constructor: NewFormGroup(id, class, title string, horizontal bool, spacing int) *FormGroup

Methods

• Add(widget Widget, params ...any) error — append a control. params[0] (int) is the line index; params[1] (string) is the label. Multiple controls on the same line render in a row. Returns ErrChildIsNil if widget is nil.
• Children() []Widget — all controls across all lines, flattened
• Layout() error — position labels and controls
• Hint() (w, h int) — preferred size needed to display every line at its natural size

Notes

When used inside a Form, the Builder's Group(id, title, name, horizontal, spacing) method auto-generates one labelled control per matching struct field — you usually don't call Add yourself.