1. 在Memo中放入变量,比如[price] 2. 在下面插入代码 price:=''; if [adoquery1."price"]<>0 then price:=[adoquery1."price"]; 3. 当然你可以进一步用函数FormatFloat规范输出格式
FastReport中,每个字段都有隐藏零值的属性。
FastReport中,每个字段都有隐藏零值的属性。其它的实现请参考:procedure TMainForm.frDBDataSet1Next(Sender: TObject); begin if RadioButton1.Checked = True then begin if (DM.BB_ADOQuery.Fields[0].Value = 2) or (DM.BB_ADOQuery.Fields[0].Value = 3) or (DM.BB_ADOQuery.Fields[0].Value = 4) or (DM.BB_ADOQuery.Fields[0].Value = 6) or (DM.BB_ADOQuery.Fields[0].Value = 7) or (DM.BB_ADOQuery.Fields[0].Value = 9) or (DM.BB_ADOQuery.Fields[0].Value = 10) or (DM.BB_ADOQuery.Fields[0].Value = 12) or (DM.BB_ADOQuery.Fields[0].Value = 14) or (DM.BB_ADOQuery.Fields[0].Value = 15) or (DM.BB_ADOQuery.Fields[0].Value = 17) then frReport1.FindObject('line21').Visible := False else frReport1.FindObject('line21').Visible := True; if DM.BB_ADOQuery.Fields[0].Value >= 18 then frReport1.FindObject('line36').Visible := False else frReport1.FindObject('line36').Visible := True; end else if RadioButton2.Checked = True then begin if (DM.BB_ADOQuery.Fields[0].Value = 2) or (DM.BB_ADOQuery.Fields[0].Value = 3) or (DM.BB_ADOQuery.Fields[0].Value = 4) or (DM.BB_ADOQuery.Fields[0].Value = 6) or (DM.BB_ADOQuery.Fields[0].Value = 7) or (DM.BB_ADOQuery.Fields[0].Value = 8) or (DM.BB_ADOQuery.Fields[0].Value = 10) or (DM.BB_ADOQuery.Fields[0].Value = 11) or (DM.BB_ADOQuery.Fields[0].Value = 13) or (DM.BB_ADOQuery.Fields[0].Value = 14) or (DM.BB_ADOQuery.Fields[0].Value = 16) or (DM.BB_ADOQuery.Fields[0].Value = 18) or (DM.BB_ADOQuery.Fields[0].Value = 19) or (DM.BB_ADOQuery.Fields[0].Value = 21) then frReport1.FindObject('line21').Visible := False else frReport1.FindObject('line21').Visible := True; if (DM.BB_ADOQuery.Fields[0].Value >= 22) and (DM.BB_ADOQuery.Fields[0].Value <= 24) then frReport1.FindObject('line36').Visible := False else frReport1.FindObject('line36').Visible := True; end else begin end; end;
2. 在下面插入代码
price:='';
if [adoquery1."price"]<>0 then
price:=[adoquery1."price"];
3. 当然你可以进一步用函数FormatFloat规范输出格式
begin
if RadioButton1.Checked = True then
begin
if (DM.BB_ADOQuery.Fields[0].Value = 2) or (DM.BB_ADOQuery.Fields[0].Value = 3)
or (DM.BB_ADOQuery.Fields[0].Value = 4) or (DM.BB_ADOQuery.Fields[0].Value = 6) or (DM.BB_ADOQuery.Fields[0].Value = 7)
or (DM.BB_ADOQuery.Fields[0].Value = 9) or (DM.BB_ADOQuery.Fields[0].Value = 10) or (DM.BB_ADOQuery.Fields[0].Value = 12)
or (DM.BB_ADOQuery.Fields[0].Value = 14) or (DM.BB_ADOQuery.Fields[0].Value = 15) or (DM.BB_ADOQuery.Fields[0].Value = 17)
then
frReport1.FindObject('line21').Visible := False
else
frReport1.FindObject('line21').Visible := True;
if DM.BB_ADOQuery.Fields[0].Value >= 18 then
frReport1.FindObject('line36').Visible := False
else
frReport1.FindObject('line36').Visible := True;
end
else if RadioButton2.Checked = True then
begin
if (DM.BB_ADOQuery.Fields[0].Value = 2) or (DM.BB_ADOQuery.Fields[0].Value = 3)
or (DM.BB_ADOQuery.Fields[0].Value = 4) or (DM.BB_ADOQuery.Fields[0].Value = 6) or (DM.BB_ADOQuery.Fields[0].Value = 7)
or (DM.BB_ADOQuery.Fields[0].Value = 8) or (DM.BB_ADOQuery.Fields[0].Value = 10) or (DM.BB_ADOQuery.Fields[0].Value = 11)
or (DM.BB_ADOQuery.Fields[0].Value = 13)
or (DM.BB_ADOQuery.Fields[0].Value = 14) or (DM.BB_ADOQuery.Fields[0].Value = 16) or (DM.BB_ADOQuery.Fields[0].Value = 18)
or (DM.BB_ADOQuery.Fields[0].Value = 19) or (DM.BB_ADOQuery.Fields[0].Value = 21)
then
frReport1.FindObject('line21').Visible := False
else
frReport1.FindObject('line21').Visible := True;
if (DM.BB_ADOQuery.Fields[0].Value >= 22) and (DM.BB_ADOQuery.Fields[0].Value <= 24) then
frReport1.FindObject('line36').Visible := False
else
frReport1.FindObject('line36').Visible := True;
end
else
begin
end;
end;