📄 unit14.pas
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unit Unit14;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Buttons, Grids, DBGrids, DB, ADODB, ComCtrls;
type
TForm14 = class(TForm)
GroupBox1: TGroupBox;
ADOConnection1: TADOConnection;
ADOQuery1: TADOQuery;
ListView1: TListView;
GroupBox2: TGroupBox;
RadioButton1: TRadioButton;
RadioButton2: TRadioButton;
RadioButton3: TRadioButton;
GroupBox3: TGroupBox;
Edit1: TEdit;
Edit2: TEdit;
Label1: TLabel;
Label2: TLabel;
Button1: TButton;
Button2: TButton;
Button3: TButton;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure ListView1Click(Sender: TObject);
procedure RadioButton1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form14: TForm14;
implementation
{$R *.dfm}
procedure TForm14.Button1Click(Sender: TObject);
begin
try
with ADOQuery1 do
begin
ADOQuery1.SQL.Clear;
ADOQuery1.SQL.Add('select * from Table7 order by kindnum');
ADOQuery1.Open;
ListView1.Items.Clear;
while not Eof do
begin
with ListView1.Items.Add do
begin
Caption:=FieldByName('kindnum').AsString;
SubItems.Add(FieldByName('kindname').AsString);
end;
Next;
end; Close;
end;
except
ListView1.Items.Clear;
MessageDlg('刷新出错',mtError,[mbok],0);
end; end;
procedure TForm14.Button2Click(Sender: TObject);
begin
if RadioButton1.Checked then
begin
if Length(Edit1.Text)<> 2 then
begin
MessageDlg('类别号不正确',mtError,[mbok],0);
Exit;
end;
with ADOQuery1 do
begin
ADOQuery1.SQL.Clear;
ADOQuery1.SQl.Add('select kindnum from Table7 where kindnum=:kindnum');
Parameters.ParamByName('kindnum').Value :=Edit1.Text;
Open;
if RecordCount <> 0 then
begin
MessageDlg('类别号<'+Edit1.Text+'>已经存在',mtError,[mbok],0);
Exit;
end;
Close;
end;
try
with ADOQuery1 do
begin
ADOQuery1.SQL.Clear;
SQl.Add('insert into Table7(kindnum,kindname) values(:kindnum,:kindname)');
Parameters.ParamByName('kindnum').Value :=Edit1.Text;
Parameters.ParamByName('kindname').Value :=Edit2.Text;
ADOQuery1.ExecSQL;
end;
except
MessageDlg('添加<'+Edit1.Text+'>失败',mtError,[mbok],0);
Exit;
end;
end;
if RadioButton2.Checked then
begin
try
with ADOQuery1 do
begin
ADOQuery1.SQL.Clear;
ADOQuery1.SQL.Add('delete from Table7 where kindnum='''+edit1.text+'''');
ADOQuery1.ExecSQL;
end;
except
MessageDlg('删除<'+Edit1.Text+'>失败',mtError,[mbok],0);
Exit;
end;
end;
if RadioButton3.Checked then
begin
if Length(Edit1.Text)<> 10 then
begin
MessageDlg('类别号不正确',mtError,[mbok],0);
Exit;
end;
try
with ADOQuery1 do
begin
ADOQuery1.SQL.Clear;
ADOQuery1.SQL.Add('update Table7 set kindname=:kindname where kindnum= :kindnum');
Parameters.ParamByName('kindnum').Value :=Edit1.Text;
Parameters.ParamByName('kindname').Value :=Edit2.Text;
ADOQuery1.ExecSQL;
end;
except
MessageDlg('修改<'+Edit1.Text+'>失败',mtError,[mbok],0);
Exit;
end;
end;
Edit1.Text := '';
Edit2.Text := '';
end;
procedure TForm14.Button3Click(Sender: TObject);
begin
close;
end;
procedure TForm14.ListView1Click(Sender: TObject);
var
i : integer;
begin
for i :=0 to ListView1.Items.Count-1 do
if ListView1.Items[ i ].Selected then
begin
RadioButton3.Checked:=True;
Edit1.Text:=ListView1.Items[i].Caption;
Edit2.Text:=ListView1.Items[i].SubItems.Strings[0];
end;
end;
procedure TForm14.RadioButton1Click(Sender: TObject);
begin
edit1.Text:='';
edit2.Text:='';
end;
end.
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