onDragSelectionStart property

ValueChanged<TapDragStartDetails>? onDragSelectionStart

Called when a drag-to-select gesture starts inside this field.

Mirrors TextSelectionGestureDetectorBuilder.onDragSelectionStart so callers composing several TextFields together (e.g. FormattedInput) can track a drag that may continue outside this field's own bounds. This does not replace the field's own default drag-selection handling.

Implementation

final ValueChanged<TapDragStartDetails>? onDragSelectionStart;