setValueOf<V> method
Writes another field value on the same visual row through the normal grid/dataset pipeline.
The write request is always routed to the grid first, even when the current cell is read-only. The grid still needs to activate/focus the owning cell deterministically; it then rejects the value change if the target field is not editable.
Implementation
bool setValueOf<V>(String fieldName, V? value) {
_requireField(fieldName, 'FdcFieldContext.setValueOf');
return _fieldValueWriter(fieldName, value);
}