login.frm

学生管理系统 很不错的一个课程设计 适合大学生毕业设计用

VERSION 5.00
Begin VB.Form 登录窗口 
   Caption         =   "登录窗口"
   ClientHeight    =   3090
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   LinkTopic       =   "Form3"
   ScaleHeight     =   3090
   ScaleWidth      =   4680
   StartUpPosition =   3  '窗口缺省
   Begin VB.Frame Frame1 
      Height          =   2895
      Left            =   53
      TabIndex        =   0
      Top             =   98
      Width           =   4575
      Begin VB.TextBox Text2 
         Height          =   375
         Left            =   1560
         TabIndex        =   6
         Text            =   "Text2"
         Top             =   1680
         Width           =   2055
      End
      Begin VB.TextBox Text1 
         Height          =   375
         Left            =   1560
         TabIndex        =   5
         Text            =   "Text1"
         Top             =   960
         Width           =   2055
      End
      Begin VB.CommandButton Command2 
         Caption         =   "取消"
         Height          =   375
         Left            =   2520
         TabIndex        =   2
         Top             =   2400
         Width           =   1095
      End
      Begin VB.CommandButton Command1 
         Caption         =   "登录"
         Height          =   375
         Left            =   840
         TabIndex        =   1
         Top             =   2400
         Width           =   975
      End
      Begin VB.Label Label3 
         Alignment       =   2  'Center
         Caption         =   "用 户 登 录"
         BeginProperty Font 
            Name            =   "黑体"
            Size            =   15
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   495
         Left            =   600
         TabIndex        =   7
         Top             =   240
         Width           =   3375
      End
      Begin VB.Label Label2 
         Caption         =   "密码"
         Height          =   255
         Left            =   360
         TabIndex        =   4
         Top             =   1800
         Width           =   1095
      End
      Begin VB.Label Label1 
         Caption         =   "用户名"
         Height          =   255
         Left            =   360
         TabIndex        =   3
         Top             =   1080
         Width           =   1095
      End
   End
End
Attribute VB_Name = "登录窗口"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
    Dim mrc As ADODB.Recordset
    txtsql = "select 用户名,标识 from 用户 where 用户名='" & Trim(Text1.Text) & "'"
    Set mrc = ExecuteSQL(txtsql)
    If mrc.EOF = True Then
        MsgBox " 用户名错误！", vbExclamation + vbOKOnly, "警告"
        Text1.SetFocus
        'Text1.SelStart = 0
        'Text1.SelLength = Len(Text1.Text)
        Exit Sub
    End If
    username = mrc.Fields(0)
    qxstra = mrc.Fields(1)
    mrc.Close
    txtsql = "select 密码 from 用户 where 密码='" & Trim(Text2.Text) & "'"
    Set mrc = ExecuteSQL(txtsql)
    If mrc.EOF = True Then
        MsgBox " 密码错误！", vbExclamation + vbOKOnly, "警告"
        Text2.SetFocus
        'Text2.SelStart = 0
        'Text2.SelLength = Len(Text2.Text)
        Exit Sub
    End If

   主窗体.Show
    Unload Me
End Sub

Private Sub Command2_Click()
    Unload Me
End Sub

Private Sub Form_Load()
Text1.Text = ""
Text2.Text = ""
End Sub

Private Sub Text1_KeyPress(KeyAscii As Integer)
    If KeyAscii = 13 Then
        Text2.SetFocus
    End If
End Sub

Private Sub Text2_KeyPress(KeyAscii As Integer)
    If KeyAscii = 13 Then
        Command1.SetFocus
    End If
End Sub