unit1.pas

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unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, FInIfile, StdCtrls, Buttons, ExtCtrls, DB, ADODB;

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Edit2: TEdit;
    Edit3: TEdit;
    Label3: TLabel;
    FInIfile1: TFInIfile;
    BitBtn1: TBitBtn;
    Panel1: TPanel;
    BitBtn2: TBitBtn;
    ComboBox1: TComboBox;
    StaticText1: TStaticText;
    Label4: TLabel;
    Edit1: TEdit;
    procedure BitBtn1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure FormShow(Sender: TObject);
    procedure ComboBox1Change(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure Edit2KeyPress(Sender: TObject; var Key: Char);
    procedure Edit3KeyPress(Sender: TObject; var Key: Char);
  private
    { Private declarations }
  public
    { Public declarations }
     power:string;
  end;

var
  Form1: TForm1;
  s_mima:string;
  s_gb:string;

implementation

uses data_1, f_main;

{$R *.dfm}
procedure TForm1.BitBtn1Click(Sender: TObject);
begin
FInIfile1.Writestrings('系统信息', '服务器',Trim(Edit3.Text));
if Length(Trim(Edit3.Text))=0 then
    begin
      Application.MessageBox('请输入服务器名称!','系统提示',mb_ok);
      Exit;
    end;
if trim(combobox1.text)=' ' then
      begin
         combobox1.SetFocus;
         showmessage('请选择员工编号');
         exit;
      end ;
if trim(edit2.text)='' then
      begin
         combobox1.SetFocus;
         showmessage('请输入身份密码');
         exit;
      end
else
   begin
     data1.ado_tab.Close;
     data1.ado_tab.SQL.Clear;
     data1.ado_tab.SQL.Add('select * from username where user_id='+ char(39)+trim(combobox1.Text)+
                        char(39)+ 'and user_password='+char(39)+trim(edit2.Text)+char(39)+
                        'and user_name='+char(39)+trim(edit1.Text)+char(39)) ;
      data1.ado_tab.Open;
   if data1.ado_tab.RecordCount >0 then  begin
         s_mima:=trim(data1.ado_tab.fieldbyname('user_password').AsString );
         w_Main.auser.id:= trim(data1.ado_tab.fieldbyname('user_id').AsString );
         w_Main.auser.name:=trim(data1.ado_tab.fieldbyname('user_name').AsString );
         power:=trim(data1.ado_tab.fieldbyname('user_power').AsString );
      if power='一般用户' then
         begin
          w_main.n3.Enabled:=false;
          w_main.ToolButton4.Enabled:=false;
          w_main.show;
          form1.Hide;
        end
     else
       begin
        s_gb:='yes';
        w_main.show;
        w_main.ToolButton4.Enabled:=true;
        form1.Hide;
      end;
   end
    else
         begin
           application.MessageBox('你输入的身份密码不正确',char(48));
           edit2.text:='';
           edit2.setfocus;
           exit;
      end;
    end;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
  Edit1.Clear;
  combobox1.Clear;
  Edit2.Clear;
  Edit3.Clear;
  if Length(Trim(Edit3.Text))=0 then
    begin
      Application.MessageBox('请输入服务器名称!','系统提示',mb_ok);
      Exit;
    end;
  FInIfile1.Directory:=ExtractFilePath(Application.ExeName);
  if FileExists('bds.ini') then
    Edit3.Text:=Finifile1.Readstrings('系统信息','服务器');
  Data1.DataBase1.ConnectionString:='Provider=SQLOLEDB.1;Persist Security Info=False;User ID=SA;Initial Catalog=cbxt;Data Source='+Trim(Edit3.Text);
  Data1.Database1.Connected;
  {cbxt是数据库名称}
end;

procedure TForm1.FormShow(Sender: TObject);
var
i:integer;
begin
combobox1.Clear;
data1.ado_tab.Close;
data1.ado_tab.SQL.Clear;
data1.ado_tab.SQL.Add('select distinct user_id from username') ;
data1.ado_tab.Open;
if data1.ado_tab.RecordCount -1>0 then
   begin
      combobox1.Clear;
      data1.ado_tab.First ;
    for i:=0 to data1.ado_tab.RecordCount -1 do
     begin
       combobox1.Items.Add(trim(data1.ado_tab.fieldbyname('user_id').AsString));
       data1.ado_tab.Next ;
    end;
  end;
end;
procedure TForm1.ComboBox1Change(Sender: TObject);
begin
    data1.ado_tab.Close;
    data1.ado_tab.SQL.Clear ;
    data1.ado_tab.SQL.Add('select * from username where user_id='''+combobox1.text+'''');
    data1.ado_tab.Open ;
    edit1.Text := data1.ado_tab.Fieldbyname('user_name').asstring;
    edit2.SetFocus ;
end;

procedure TForm1.BitBtn2Click(Sender: TObject);
begin
 CLOSE;
end;

procedure TForm1.Edit2KeyPress(Sender: TObject; var Key: Char);
begin
if ord(key)=13 then
BitBtn1Click(Sender);
end;
procedure TForm1.Edit3KeyPress(Sender: TObject; var Key: Char);
begin
if key=chr(13) then
  if Trim(edit3.Text)<>'' then
  begin
   combobox1.SetFocus;
  end ;
end;
end.