function f_access(uid :string ; powercode :string):boolean;
这个方法并非是Form的组成方法,所以也就没有Self
function TForm1.f_access(uid :string ; powercode :string):boolean;
var adoq_pubf1:TADOQuery;
begin
ADOQ_pubf1:=TADOQuery.Create(Self);//这里Self指TForm1
with TADOQuery.Create(Self) do
begin
ConnectionString:='Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\Documents and Settings\lzf\My Documents\db2.mdb;Mode=ReadWrite|Share Deny None;Persist Security Info=False';
SQL.Add('Select * From Table1');
Active:=True;
While Not Eof do
begin
ComboBox1.Items.Add(Fields[0].AsString);
Next;
end;
Active:=False;
Free;
end;