modifiedField

public void modifiedField(fieldId _fieldId)
{
    BOM BOM;
    ;
    super(_fieldId);
    switch(_fieldId)
    {
        case fieldnum(WI_MachineDrawing, RevNo):
            update_recordset BOM 
                setting RevNo = this.RevNo
                where BOM.WI_MachineDrawingNumber = this.WI_MachineDrawingNumber;
            break;
    }
}