login.frm

我自己写的。缓和 我自己写的。缓和 我自己写的。缓和 我自己写的。缓和

VERSION 5.00
Begin VB.Form login 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "用户登陆"
   ClientHeight    =   2520
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   4110
   Icon            =   "login.frx":0000
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MouseIcon       =   "login.frx":628A
   ScaleHeight     =   2520
   ScaleWidth      =   4110
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton submit 
      Caption         =   "登陆"
      Height          =   255
      Left            =   840
      TabIndex        =   4
      Top             =   1680
      Width           =   615
   End
   Begin VB.TextBox admin_pwd 
      Height          =   270
      IMEMode         =   3  'DISABLE
      Left            =   1320
      PasswordChar    =   "*"
      TabIndex        =   1
      Top             =   1200
      Width           =   1815
   End
   Begin VB.TextBox admin_id 
      Height          =   270
      Left            =   1320
      TabIndex        =   0
      Top             =   720
      Width           =   1815
   End
   Begin VB.Label Label2 
      Caption         =   "密  码"
      Height          =   255
      Left            =   480
      TabIndex        =   3
      Top             =   1200
      Width           =   855
   End
   Begin VB.Label Label1 
      Caption         =   "用户名"
      Height          =   255
      Left            =   480
      TabIndex        =   2
      Top             =   720
      Width           =   735
   End
End
Attribute VB_Name = "login"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Public alert_ As Integer

'下面函数为判断用户按回车后执行提交数据的动作
Private Sub admin_id_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
Call submit_Click
End If
End Sub

Private Sub admin_pwd_KeyPress(KeyAscii As Integer)
If KeyAscii = 13 Then
Call submit_Click
End If
End Sub

Private Sub submit_Click()
'--------------
  If admin_id.Text = "" Then
    MsgBox "请输入帐号"
    admin_id.SetFocus '鼠标光标返回admin_id控件内
    Exit Sub  '停止执行触发事件
  End If
  If admin_pwd.Text = "" Then
   MsgBox "请输入密码"
   admin_pwd.SetFocus
   Exit Sub
  End If
'-----------------
Dim rs1 As ADODB.Recordset
  ExecuteSql rs1, "select *from admin where 帐号='" & admin_id.Text & "' and 密码='" & admin_pwd.Text & "'"
  If rs1.EOF And rs1.BOF Then
  
      If alert_ < 2 Then
         alert_ = alert_ + 1
         MsgBox "对不起，您的输入有误"
         admin_id.Text = ""
         admin_pwd.Text = ""
         admin_id.SetFocus
         Else
         MsgBox "对不起，您输入的错误次数过多，系统即将关闭！"
         Unload Me
      End If
      Exit Sub
   End If
   Admin_admin = rs1("权限")
   Admin_admin1 = rs1("管理称呼")
   Admin_admin2 = rs1("呢称")
   rs1.Close
   Set rs1 = Nothing
   infor.Show
   Me.Hide
End Sub