Query为什么说没处于modify模式呀

[hzyood]

with query1 do
begin
close;
sql.clear;
sql.text:='select * from table1 ';
open;

if recordcount<>0 then
begin
if flatedit1.Text<>'' then
begin

requsetlive:=true;
edit;
fieldbyname('Pzbz_czbk').asfloat:=strtofloat(edit1.text);
post;
end;
end;
end;
我这样做了为什么报错呀,怎么样才能行呀

[jacket008]

with query1 do
begin
close;
sql.clear;
sql.text:='update table1 set Pzbz_czbk='''+edit1.text+''' where 你的条件';
open;
end;

[jacket008]

补充，上面的
open;应改为execsql;

[WWWWA]

query1.requsetlive:=true;