infoquery.pas

图书管理系统

unit infoquery;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, ComCtrls, data;

type
  Tqueryform = class(TForm)
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    TabSheet2: TTabSheet;
    TabSheet3: TTabSheet;
    GroupBox1: TGroupBox;
    RadioButton1: TRadioButton;
    RadioButton2: TRadioButton;
    RadioButton3: TRadioButton;
    RadioButton4: TRadioButton;
    CheckBox1: TCheckBox;
    Label1: TLabel;
    Edit3: TEdit;
    Button1: TButton;
    Button2: TButton;
    ListView1: TListView;
    StaticText2: TStaticText;
    GroupBox2: TGroupBox;
    RadioButton5: TRadioButton;
    RadioButton6: TRadioButton;
    CheckBox2: TCheckBox;
    Label2: TLabel;
    Edit1: TEdit;
    Button3: TButton;
    ListView2: TListView;
    StaticText4: TStaticText;
    GroupBox3: TGroupBox;
    RadioButton7: TRadioButton;
    CheckBox3: TCheckBox;
    Label3: TLabel;
    Edit2: TEdit;
    Button4: TButton;
    ListView3: TListView;
    StaticText6: TStaticText;
    procedure RadioButton1Click(Sender: TObject);
    procedure RadioButton2Click(Sender: TObject);
    procedure RadioButton3Click(Sender: TObject);
    procedure RadioButton4Click(Sender: TObject);
    procedure Edit2KeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
    procedure Button4Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  queryform: Tqueryform;

implementation

{$R *.dfm}

procedure Tqueryform.RadioButton1Click(Sender: TObject);
begin
  edit3.Text :='';
  edit3.MaxLength:=10;
end;

procedure Tqueryform.RadioButton2Click(Sender: TObject);
begin
  edit3.Text :='';
  edit3.MaxLength:=0;
end;

procedure Tqueryform.RadioButton3Click(Sender: TObject);
begin
  edit3.Text :='';
  edit3.MaxLength:=0;
end;

procedure Tqueryform.RadioButton4Click(Sender: TObject);
begin
  edit3.Text :='';
  edit3.MaxLength:=0;
end;

procedure Tqueryform.Edit2KeyDown(Sender: TObject; var Key: Word;
  Shift: TShiftState);
begin
  if key=13 then
    button4click(sender);
end;

procedure Tqueryform.Button4Click(Sender: TObject);
var
  content:string;
begin
 try
  listview3.Items.Clear ;

  with datamoduleado.ADOQuery1 do
  begin
    content:=edit2.Text ;
    if checkbox3.Checked then
      content:='%'+content+'%';

    sql.Clear ;
    if radiobutton7.Checked then
    begin
     sql.Add('select lend.readerid ,name,sex,idcardno,outdate,code from lend,reader where lend.readerid like :readerid and reader.readerid=lend.readerid order by lend.readerid');

     parameters.ParamByName('readerid').Value :=content;
    end;

    open;


    while not eof do
    begin
      with listview3.Items.Add do
      begin
        caption:=fieldbyname('readerid').AsString ;
        subitems.add(fieldbyname('name').AsString );
        if fieldbyname('sex').AsString ='1' then
          subitems.add('女')
        else
          subitems.add('男');
        subitems.add(fieldbyname('code').AsString );
        subitems.add(fieldbyname('outdate').AsString );
        subitems.add(floattostr(date-fieldbyname('outdate').AsDateTime));

        subitems.add(fieldbyname('idcardno').AsString );
        if date-fieldbyname('outdate').AsDateTime >60 then
          subitems.Add(floattostr((date-fieldbyname('outdate').AsDateTime -60)*0.1))
        else
          subitems.add('0');
        end;
        next;
      end;

  statictext6.Caption :='共'+inttostr(recordcount)+'条记录';
  close;
  end;
  except
   messagedlg('查询失败',mterror,[mbok],0);
  end;
end;

procedure Tqueryform.Button1Click(Sender: TObject);
begin
 close;
end;

procedure Tqueryform.Button3Click(Sender: TObject);
var
  content:string;
begin
 try
  listview2.Items.Clear ;

  with datamoduleado.ADOQuery1 do
  begin
    content:=edit1.Text ;
    if checkbox2.Checked then
      content:='%'+content+'%';

    sql.Clear ;
    if radiobutton5.Checked then
    begin
     sql.Add('select readerid,name,sex,idcardno from reader where readerid like :readerid ');
     parameters.ParamByName('readerid').Value :=content;
    end;
    if radiobutton6.Checked then
    begin
      sql.Add('select readerid,name,sex,idcardno from reader where name like :name ');
      parameters.ParamByName('name').Value :=content;
    end;


    open;


    while not eof do
    begin
      with listview2.Items.Add do
      begin
        caption:=fieldbyname('readerid').AsString ;
        subitems.add(fieldbyname('name').AsString );
         if fieldbyname('sex').AsString ='1' then
          subitems.add('女')
        else
          subitems.add('男');


        subitems.add(fieldbyname('idcardno').AsString );
      end;
        next;
      end;

  statictext4.Caption :='共'+inttostr(recordcount)+'条记录';
  close;
  end;

  except
   messagedlg('查询失败',mterror,[mbok],0);

  end;
end;

procedure Tqueryform.Button2Click(Sender: TObject);
var
  content:string;
begin
 try
  listview1.Items.Clear ;

  with datamoduleado.ADOQuery1 do
  begin
    content:=edit3.Text ;
    if checkbox1.Checked then
      content:='%'+content+'%';

    sql.Clear ;
    if radiobutton1.Checked then
    begin
     sql.Add('select code,name,author,press,outdate,cost,memo0 from book where code like :code ');
     parameters.ParamByName('code').Value :=content;
    end;
    if radiobutton2.Checked then
    begin
     sql.Add('select code,name,author,press,outdate,cost,memo0 from book where name like :name ');
     parameters.ParamByName('name').Value :=content;
    end;
    if radiobutton3.Checked then
    begin
     sql.Add('select code,name,author,press,outdate,cost,memo0 from book where press like :press ');
     parameters.ParamByName('press').Value :=content;
    end;
    if radiobutton4.Checked then
    begin
     sql.Add('select code,name,author,press,outdate,cost,memo0 from book where author like :author ');
     parameters.ParamByName('author').Value :=content;
    end;




    open;


    while not eof do
    begin
      with listview1.Items.Add do
      begin
        caption:=fieldbyname('code').AsString ;
        subitems.add(fieldbyname('name').AsString );
        subitems.add(fieldbyname('author').AsString );
        subitems.add(fieldbyname('press').AsString );
        subitems.add(fieldbyname('outdate').AsString );
        subitems.add(floattostr(fieldbyname('cost').AsFloat));
        subitems.add(fieldbyname('memo0').AsString );
      end;
        next;
      end;

  statictext2.Caption :='共'+inttostr(recordcount)+'条记录';
  close;
  end;

  except
   messagedlg('查询失败',mterror,[mbok],0);

  end;
end;

end.