frmlogin.frm

完整的数据库课程设计

VERSION 5.00
Begin VB.Form FrmLogin 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "登陆"
   ClientHeight    =   2970
   ClientLeft      =   45
   ClientTop       =   435
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   2970
   ScaleWidth      =   4680
   StartUpPosition =   1  '所有者中心
   Begin VB.OptionButton Option2 
      Caption         =   "管理员"
      Height          =   255
      Left            =   2520
      TabIndex        =   5
      Top             =   1920
      Value           =   -1  'True
      Width           =   1095
   End
   Begin VB.OptionButton Option1 
      Caption         =   "普通用户"
      Height          =   255
      Left            =   1080
      TabIndex        =   4
      Top             =   1920
      Width           =   1095
   End
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      Height          =   375
      Left            =   2400
      TabIndex        =   7
      Top             =   2400
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Caption         =   "登陆"
      Height          =   375
      Left            =   960
      TabIndex        =   6
      Top             =   2400
      Width           =   1095
   End
   Begin VB.TextBox Text3 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2040
      PasswordChar    =   "*"
      TabIndex        =   3
      Text            =   "admin"
      Top             =   1440
      Width           =   1935
   End
   Begin VB.TextBox Text2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2040
      PasswordChar    =   "*"
      TabIndex        =   2
      Text            =   "admin"
      Top             =   840
      Width           =   1935
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   2040
      TabIndex        =   1
      Text            =   "admin"
      Top             =   240
      Width           =   1935
   End
   Begin VB.Label Label3 
      Caption         =   "确认密码："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   600
      TabIndex        =   9
      Top             =   1440
      Width           =   1215
   End
   Begin VB.Label Label2 
      Caption         =   "密    码："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   600
      TabIndex        =   8
      Top             =   840
      Width           =   1215
   End
   Begin VB.Label Label1 
      Caption         =   "用 户 名："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   600
      TabIndex        =   0
      Top             =   240
      Width           =   1215
   End
End
Attribute VB_Name = "FrmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
On Error GoTo ywc
If Text1.Text = "" Then
    MsgBox ("用户名不能空")
    Exit Sub
End If
If Text2.Text <> Text3.Text Or Text2.Text = "" Or Text3.Text = "" Then
    MsgBox ("密码输入错误")
    Exit Sub
End If
Call connect_db
If Option1.Value = True Then
    Call sel_table("Users", "where Uid='" & Text1.Text & "' and Upwd='" & Text2.Text & "'")
    If rst.RecordCount > 0 Then
        With FrmUser
            .SSTab.Tab = 2
            .Text1.Text = Text1.Text
            .SSTab.Tab = 2
            .Height = 6720
            .Picture1.Visible = False
            .Picture2.Visible = True
            .Picture3.Visible = True
            .Picture2.Top = 960
            .DataGrid1.Height = 4350
            .DataGrid1.Top = 450
        End With
        Call connect_db
        Call sel_table("Books", "")
        Set FrmUser.DataGrid1.DataSource = rst
        With FrmUser
            .DataGrid1.Columns(0).Caption = "图书编号"
            .DataGrid1.Columns(1).Caption = "书名"
            .DataGrid1.Columns(2).Caption = "类型"
            .DataGrid1.Columns(3).Caption = "作者"
            .DataGrid1.Columns(4).Caption = "出版社"
            .DataGrid1.Columns(5).Caption = "出版日期"
            .DataGrid1.Columns(6).Caption = "图书简介"
            .Label9.Caption = "一共有" & rst.RecordCount & "本书"
        End With
        Unload Me
        FrmUser.Show
        Unload FrmMain
        Exit Sub
    End If
Else
    Call sel_table("Managers", "where Mid='" & Text1.Text & "' and Mpwd='" & Text2.Text & "'")
    If rst.RecordCount > 0 Then
        Unload Me
        FrmMger.Label4.Caption = rst("Mid")
        FrmMger.SSTab1.Tab = 2
        Call connect_db
        Call sel_table("Books", "")
        Set FrmMger.DataGrid1.DataSource = rst
        With FrmMger
            .DataGrid1.Columns(0).Caption = "图书编号"
            .DataGrid1.Columns(1).Caption = "书名"
            .DataGrid1.Columns(2).Caption = "类型"
            .DataGrid1.Columns(3).Caption = "作者"
            .DataGrid1.Columns(4).Caption = "出版社"
            .DataGrid1.Columns(5).Caption = "出版日期"
            .DataGrid1.Columns(6).Caption = "图书简介"
            .Label3.Caption = "一共有" & rst.RecordCount & "本书"
        End With
        FrmMger.Show
        Unload FrmMain
        Exit Sub
    End If
End If
MsgBox ("用户名或密码错误")
Exit Sub
ywc:
MsgBox ("数据库连接失败")
End Sub

Private Sub Command2_Click()
Unload Me
End Sub

Private Sub Option1_Click()
    Text1.Text = "gmj"
Text2.Text = "123"
Text3.Text = "123"
End Sub

Private Sub Option2_Click()
Text1.Text = "admin"
Text2.Text = "admin"
Text3.Text = "admin"
End Sub