userlogin_unit.pas

货源代理管理系统 同样是DELPHI7下的

unit UserLogin_Unit;

interface

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

type
  TfrmUserLogin = class(TForm)
    edtUserID: TEdit;
    edtUserPwd: TEdit;
    lblUserID: TLabel;
    lblUserPwd: TLabel;
    Image1: TImage;
    btnLogin: TBitBtn;
    btnCancel: TBitBtn;
    procedure btnCancelClick(Sender: TObject);
    procedure btnLoginClick(Sender: TObject);
    procedure edtUserIDKeyPress(Sender: TObject; var Key: Char);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  frmUserLogin: TfrmUserLogin;

implementation

uses ClientDM_Unit, ClientMain_Unit;

{$R *.dfm}

procedure TfrmUserLogin.btnCancelClick(Sender: TObject);
begin
  Application.Terminate;
end;

procedure TfrmUserLogin.btnLoginClick(Sender: TObject);
begin
  if DM.SocketConn.AppServer.GetLogin(edtUserID.Text,edtUserPwd.Text) <> True then
  begin
    Application.MessageBox('用户登录信息出错,请重新登录!','错误',16);
    edtUserPwd.Text := '';
    edtUserPwd.SetFocus;
    Exit;
  end;
  UserID := edtUserID.Text;
  Close;
end;

procedure TfrmUserLogin.edtUserIDKeyPress(Sender: TObject; var Key: Char);
begin
  if Key = #13 then
  begin
    Perform(WM_NEXTDLGCTL, 0, 0);
    Key := #0;
  end;
end;

end.