ADO的问题（急&在线等待）

[No_1gogo]

怎么用ADO的控件，动态的建表啊，adoquery和adotable都行，最好是用adotable。

[chenjiong]

nit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, comobj,adox_tlb,Graphics, Controls, Forms,
Dialogs, StdCtrls;

type
TForm1 = class(TForm)
Button1: TButton;
Edit1: TEdit;
Edit2: TEdit;
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
Catalog: _Catalog;
Table: _Table;
Index : _Index;
//FKey : _key;
strCon:string;//定义连接字符串
yourname:string;
yourpwd:string;
begin
yourname:=trim(edit1.Text);
yourpwd:=trim(edit2.text);
Catalog := CoCatalog.Create;
strCon := 'Provider=Microsoft.Jet.OleDB.4.0;'
//通过Jet OleDb直接操作Access数据库
+'Data Source=c:\windows\desktop\'+yourname+'.mdb;'
//数据库位置
+'Jet OLEDB:Engine Type=5;'
//Jet 4.x格式，如为4，则Jet 3.x格式
+'Locale Identifier=0x0804;'
//支持简体中文（一定要有）
+'Jet OLEDB:Database Password='+yourpwd;//修改密码也在此;
//加入密码
Catalog.Create(strCon); //建立数据库
{建立数据表和索引}
Catalog.Set_ActiveConnection(strCon);
//连接到数据库

with Catalog do
begin //建立数据表
Table:= CoTable.Create(); //建立Table实例

with Table do
begin
Name := 'MyTable1'; //建表 MyTable1
Table.ParentCatalog := Catalog ;
Columns.Append('ID',adInteger,8);

Columns.Item['ID'].Properties.Item['AutoIncrement'].Value := true;

Columns.Append('Name',adVarWChar,40);
Columns.Append('Parent_ID',adInteger,8);
Columns.Item['Parent_ID'].Properties['Default'].Value := 0;

Columns.Append('Sort_ID',adInteger,8);
Columns.Append('Counter',adInteger,8);
Columns.Item['Counter'].Properties.Item['Default'].Value := 0;

//数据类型详见MDAC SDK
Tables.Append(Table); //建表 MyTable1

Index := CoIndex.Create() as _Index; //建立索引
with Index do
begin
Name:='Idx1';
PrimaryKey := True ;
Unique := True;
Columns.Append('ID',adInteger,8);
_Release;
end;
Table.Indexes.Append(Index,EmptyParam);

Table._Release;
Table:= CoTable.Create();


end; //with table do
end; //with catalog do

end;