frmlogin.frm

水电费管理信息系统。用VB编写

VERSION 5.00
Begin VB.Form frmLogin 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "用户登录"
   ClientHeight    =   2880
   ClientLeft      =   4725
   ClientTop       =   4365
   ClientWidth     =   4710
   Icon            =   "frmLogin.frx":0000
   LinkTopic       =   "Form2"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2880
   ScaleWidth      =   4710
   Begin VB.TextBox t_password 
      Height          =   270
      IMEMode         =   3  'DISABLE
      Left            =   1920
      MaxLength       =   8
      PasswordChar    =   "*"
      TabIndex        =   6
      Top             =   1065
      Width           =   1935
   End
   Begin VB.TextBox t_id 
      Height          =   270
      Left            =   1920
      MaxLength       =   8
      TabIndex        =   5
      Top             =   465
      Width           =   1935
   End
   Begin VB.Data Data1 
      Caption         =   "Data1"
      Connect         =   "Access"
      DatabaseName    =   ""
      DefaultCursorType=   0  '缺省游标
      DefaultType     =   2  '使用 ODBC
      Exclusive       =   0   'False
      Height          =   345
      Left            =   1920
      Options         =   0
      ReadOnly        =   0   'False
      RecordsetType   =   1  'Dynaset
      RecordSource    =   "密码表"
      Top             =   0
      Visible         =   0   'False
      Width           =   1740
   End
   Begin VB.CommandButton Command2 
      Caption         =   "取消(&C)"
      Height          =   495
      Left            =   2880
      TabIndex        =   3
      Top             =   2160
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定(&Y)"
      Height          =   495
      Left            =   480
      TabIndex        =   2
      Top             =   2160
      Width           =   1215
   End
   Begin VB.Label Label3 
      ForeColor       =   &H000000FF&
      Height          =   255
      Left            =   1440
      TabIndex        =   4
      Top             =   1680
      Width           =   2295
   End
   Begin VB.Label Label2 
      Caption         =   "密    码:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   600
      TabIndex        =   1
      Top             =   1080
      Width           =   1215
   End
   Begin VB.Label Label1 
      Caption         =   "用户名称:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   600
      TabIndex        =   0
      Top             =   480
      Width           =   1215
   End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim myheight, mywidth As Integer  '保持窗体大小的相关声明
Private Sub Command1_Click()
  '检查用户名和密码
If t_id.Text = "" And t_password.Text = "" Then
   Label3.Caption = "请输入用户名和密码!"
Else
   If t_id.Text = "" Then
      Label3.Caption = "请输入用户名!"
      t_id.SetFocus
    Else
       If t_password.Text = "" Then
          Label3.Caption = "请输入密码!"
          t_password.SetFocus
        Else
            Dim user As String
            user = "useid=" & "'" & Trim(t_id.Text) & "' and " + "password=" & "'" & Trim(t_password.Text) & "'"
            Data1.Recordset.FindFirst user
            If Data1.Recordset.NoMatch Then
               Label3.Caption = "没有该用户，或密码错误!"
               Exit Sub
            Else
              frmMain.Show
              frmPWupdate.Label5.Caption = t_id.Text   '记录传递用户名
              Unload Me
              Unload form1
            End If
        End If
    End If
End If
End Sub

Private Sub Command2_Click()
  End
End Sub

Private Sub Form_Load()
  mywidth = Me.Width    '保持窗体大小
  myheight = Me.Height
  
  Data1.DatabaseName = App.Path + "\水电费管理系统数据库.mdb"
  Data1.RecordSource = "密码表"
End Sub

Private Sub Form_Resize()
  Me.Height = myheight   '保持窗体大小
  Me.Width = mywidth
End Sub

Private Sub t_id_KeyPress(KeyAscii As Integer)
  If KeyAscii = 13 Then SendKeys "{tab}"  '用户名框中按回车,焦点移至密码文本框
End Sub

Private Sub t_password_KeyPress(KeyAscii As Integer)
  If KeyAscii = 13 Then Command1_Click   '输完密码后,按回车,等同于按"确定"按钮
End Sub