fplrunit.pas

delphi sqlserver 学生学籍管理系统

unit fplrunit;

interface

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

type
  Tfplrfrm = class(TForm)
    Panel1: TPanel;
    Label1: TLabel;
    Label2: TLabel;
    Button1: TButton;
    Label3: TLabel;
    Label4: TLabel;
    ComboBox1: TComboBox;
    ComboBox2: TComboBox;
    procedure FormCreate(Sender: TObject);
    procedure ComboBox1Exit(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  fplrfrm: Tfplrfrm;

implementation

uses datadomule, fplrfunit;

{$R *.dfm}

procedure Tfplrfrm.FormCreate(Sender: TObject);
begin
combobox1.Items.clear;
with datamodule1.qry_fplr do
begin
 close;
 sql.clear;
 sql.add('select * from zyb0') ;
 open;
 first;

if recordcount>0 then
// combobox1.text:=Fields[1].asstring;
repeat
 combobox1.items.add(fields[1].asstring);
 until findnext=false;
end;
end;

procedure Tfplrfrm.ComboBox1Exit(Sender: TObject);
begin
combobox2.Items.Clear;
with datamodule1.qry_fplr do
begin
close;
sql.Clear;
sql.add('select * from bjb0 where zymc=:name');
parambyname('name').asstring:=combobox1.text;
open;
if recordcount>0 then
 combobox2.text:=Fields[0].asstring;
repeat
 combobox2.items.add(fields[0].asstring);
 until findnext=false;
end;
end;

procedure Tfplrfrm.Button1Click(Sender: TObject);
begin
fplr:=tfplr.create(self);
fplr.showmodal;
fplrfrm.close;
end;

end.