tsgl.pas.~1~

Delphi数据库开发毕业设计指导及实例 一书的源码

unit tsgl;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Grids, DBGrids, Menus, DB, DBTables, ComCtrls, StdCtrls,
  ExtCtrls;

type
  Ttsgl_Form = class(TForm)
    Panel1: TPanel;
    Label1: TLabel;
    Label2: TLabel;
    cmdok: TButton;
    cmdclose: TButton;
    begin_DTP: TDateTimePicker;
    end_DTP: TDateTimePicker;
    Query1: TQuery;
    DataSource1: TDataSource;
    PopupMenu1: TPopupMenu;
    N1: TMenuItem;
    N2: TMenuItem;
    N3: TMenuItem;
    DBGrid1: TDBGrid;
    procedure cmdokClick(Sender: TObject);
    procedure N1Click(Sender: TObject);
    procedure N2Click(Sender: TObject);
    procedure N3Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
    modi:boolean;
    xcaption:string;
  end;

var
  tsgl_Form: Ttsgl_Form;

implementation

uses modits, main;

{$R *.dfm}

procedure Ttsgl_Form.cmdokClick(Sender: TObject);
var
    sqlstr,ksrq,jsrq:string;
begin
    ksrq:=datetostr(begin_DTP.Date);
    jsrq:=datetostr(end_dtp.Date);
    sqlstr:='select * from t_tsb where (rq>='''+ksrq+''')and(rq<='''+jsrq+''')';
    Query1.Close;
    Query1.SQL.Clear;
    Query1.SQL.Add(sqlstr);
    Query1.Open;
    if Query1.RecordCount>0 then
    begin
        N1.Enabled:=true;
        N2.Enabled:=true;
        N3.Enabled:=true;
    end
    else
    begin
        N1.Enabled:=true;
        N2.Enabled:=false;
        N3.Enabled:=false;
    end;
end;

procedure Ttsgl_Form.N1Click(Sender: TObject);
begin
    modi:=false;
    xcaption:='添加投诉信息';
    Application.CreateForm(Tmodits_Form, modits_Form);
    modits_form.ShowModal;
end;

procedure Ttsgl_Form.N2Click(Sender: TObject);
begin
    modi:=true;
    xcaption:='修改投诉信息';
    Application.CreateForm(Tmodits_Form, modits_Form);
    modits_form.ShowModal;
end;

procedure Ttsgl_Form.N3Click(Sender: TObject);
var
    id:string;
begin
    id:=Query1.fieldbyname('id').AsString;
    if MessageDlg('确认要删除选中的记录码?',mtConfirmation, [mbYes, mbNo], 0) = mrYes then
    begin
        with tquery.Create(nil) do
        begin
            try
            Close;
            SQL.Clear;
            SQL.Add('delete from t_tsb where id='''+id+'''');
            ExecSQL;
            finally
            Free;
            end;
        end;
    end;
end;

procedure Ttsgl_Form.FormClose(Sender: TObject; var Action: TCloseAction);
begin
    Action:=caFree;
    mainform.N61.Enabled:=true;
end;

end.