[Ildar-tsr]

Код:

  query.Filtered:= false;
  query.Filter:= '';
  
  if combobox1.text <> '' then
    query.Filter:= ' komanda = '''+combobox1.text+''' ';
  
  if combobx2.text <> '' then
    if query.Filter = '' then
      query.Filter:= ' komanda = '''+combobox2.text+''' '
    else
      query.Filter:= query.Filter + ' and komanda = '''+combobox2.text+''' ';

  if (combobox1.text <> '') or (combobox2.text <> '') then
    query.Filtered:= true;