w_bjxjbb.pas

来自「学生学籍管理源码」· PAS 代码 · 共 65 行

unit w_bjxjbb;

interface

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

type
  Tbjxjbb = class(TForm)
    DBLookupComboBox1: TDBLookupComboBox;
    Label1: TLabel;
    Button1: TButton;
    Button2: TButton;
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  bjxjbb: Tbjxjbb;

implementation

uses mydata, w_bjxsxjbb;

{$R *.dfm}

procedure Tbjxjbb.Button2Click(Sender: TObject);
begin
data.txj.Close;
data.txj.Open;
bjxjbb.Close;
end;

procedure Tbjxjbb.Button1Click(Sender: TObject);
begin
data.txj.Open;
//count:=0;
if (dblookupcombobox1.Text='') then begin
 // showmessage('请选择班级。')
   application.MessageBox('请选择班级!','提示',mb_OK);
    end else begin
  data.txj.Open;
  data.txj.Filter:='班级='''+dblookupcombobox1.text+'''';
  data.txj.Filtered :=true;
  
  bjxsxjbb.quickrep1.Preview  ;
 // count:=count+1;

  end;
end;

procedure Tbjxjbb.FormClose(Sender: TObject; var Action: TCloseAction);
begin
if data.txj.Filtered=true then
data.txj.filtered:=false;
end;

end.