procedure TcxGridFilterRow.SetValue(Index: Integer; const Value: Variant);
var
  AGridView: TcxGridTableView;
  AColumn: TcxGridColumn;
begin
  AGridView := GridView;
  AGridView.Controller.KeepFilterRowFocusing := True;
  try
    AColumn := AGridView.Columns[Index];
    if VarIsSoftNull(Value) then
      AColumn.DataBinding.Filtered := False
    else
    begin
      DataController.Filter.BeginUpdate;
      try
        DataController.Filter.Active := True;
        AColumn.DataBinding.AddToFilter(nil, GetOperator(Index, Value), Value, GetDisplayTextForValue(Index, Value), True);
      finally
        DataController.Filter.EndUpdate;
      end;
    end;
  finally
    AGridView.Controller.KeepFilterRowFocusing := False;
  end;
end;