button的 click事件中,更改dbgrid后的adoquery中的SQL语句。用语句查询。
with adoquery1 do beign
close;
sql.clear;
sql.add('select * from 表 where 字段1 like ''%'+trim(edit1.text)+'%'' and 字段2 like ''%'+trim(edit2.text)+'%'' and 字段3 like ''%'+trim(edit3.text)+'%''');
execsql;
open;
end;