📄 unit3.~pas
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unit Unit3;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, Grids, DBGrids, StdCtrls, DB, ADODB, Mask, DBCtrls, ExtCtrls;
type
TForm3 = class(TForm)
Label1: TLabel;
Label2: TLabel;
Label3: TLabel;
Label4: TLabel;
Label5: TLabel;
Label6: TLabel;
Label7: TLabel;
Label8: TLabel;
Button1: TButton;
Button2: TButton;
DBGrid1: TDBGrid;
DataSource1: TDataSource;
ADOQuery1: TADOQuery;
DBEdit1: TDBEdit;
DBEdit2: TDBEdit;
DBEdit4: TDBEdit;
DBEdit5: TDBEdit;
DBEdit6: TDBEdit;
DBEdit8: TDBEdit;
DBNavigator1: TDBNavigator;
Button3: TButton;
DBComboBox1: TDBComboBox;
DBComboBox2: TDBComboBox;
Button4: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure DataSource1StateChange(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form3: TForm3;
implementation
{$R *.dfm}
procedure TForm3.Button1Click(Sender: TObject);
begin
adoquery1.Insert;
dbedit1.SetFocus;
end;
procedure TForm3.Button2Click(Sender: TObject);
begin
if messagebox(0,'确认要删除?','信息提示!',mb_yesno+mb_iconinformation+mb_taskmodal)=idyes then
adoquery1.Delete
end;
procedure TForm3.Button3Click(Sender: TObject);
begin
close
end;
procedure TForm3.Button4Click(Sender: TObject);
begin
adoquery1.post;
end;
procedure TForm3.DataSource1StateChange(Sender: TObject);
begin
if adoquery1.State=dsbrowse then
begin
button4.Enabled:=false;
end;
if (adoquery1.State=dsedit) or (adoquery1.State=dsinsert) then
button4.Enabled:=true;
end;
end.
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