frmborrowbook.frm

本课题是图书管理信息系统

            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   375
         Left            =   1080
         TabIndex        =   12
         Top             =   960
         Width           =   2175
      End
      Begin VB.Label Label8 
         Caption         =   "Label8"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   10.5
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   255
         Left            =   1080
         TabIndex        =   11
         Top             =   600
         Width           =   1815
      End
      Begin VB.Label Label7 
         AutoSize        =   -1  'True
         Caption         =   "登记日期"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   3360
         TabIndex        =   10
         Top             =   1560
         Width           =   960
      End
      Begin VB.Label Label6 
         AutoSize        =   -1  'True
         Caption         =   "出版日期"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   9
         Top             =   1680
         Width           =   960
      End
      Begin VB.Label Label5 
         AutoSize        =   -1  'True
         Caption         =   "出版社"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   3360
         TabIndex        =   8
         Top             =   1080
         Width           =   720
      End
      Begin VB.Label Label4 
         AutoSize        =   -1  'True
         Caption         =   "作者"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   7
         Top             =   1320
         Width           =   480
      End
      Begin VB.Label Label3 
         AutoSize        =   -1  'True
         Caption         =   "类    别"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   3360
         TabIndex        =   6
         Top             =   600
         Width           =   960
      End
      Begin VB.Label Label2 
         AutoSize        =   -1  'True
         Caption         =   "书名"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   5
         Top             =   960
         Width           =   480
      End
      Begin VB.Label Label1 
         AutoSize        =   -1  'True
         Caption         =   "编号"
         BeginProperty Font 
            Name            =   "宋体"
            Size            =   12
            Charset         =   134
            Weight          =   400
            Underline       =   0   'False
            Italic          =   0   'False
            Strikethrough   =   0   'False
         EndProperty
         Height          =   240
         Left            =   360
         TabIndex        =   4
         Top             =   600
         Width           =   480
      End
   End
End
Attribute VB_Name = "frmborrowbook"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim leibie As String         '该读者的类别
Dim qixian As Integer        '该读者可以借书的期限
Dim shumu As Integer         '该读者已借书数量
Dim maxnum As Integer        '该读者借书数量的限制

Private Sub Combo1_Click()
Combo2.ListIndex = Combo1.ListIndex
End Sub

Private Sub Combo2_Click()
Combo1.ListIndex = Combo2.ListIndex
End Sub

Private Sub Command1_Click()
Dim rs_borrowbook As New ADODB.Recordset
Dim sql As String
sql = "select * from 读者信息 where 读者编号='" & Combo1.Text & "'"
rs_borrowbook.Open sql, conn, adOpenKeyset, adLockPessimistic
leibie = rs_borrowbook.Fields(3)
shumu = rs_borrowbook.Fields(8)
rs_borrowbook.Close
sql = "select * from 读者类别 where 种类名称='" & leibie & "'"
rs_borrowbook.Open sql, conn, adOpenKeyset, adLockPessimistic
qixian = rs_borrowbook.Fields(2)
maxnum = rs_borrowbook.Fields(1)
rs_borrowbook.Close
If shumu >= maxnum Then
   MsgBox "该读者借书数额已满！", vbOKOnly + vbExclamation
   Exit Sub
End If
sql = "select * from 借阅信息"
rs_borrowbook.Open sql, conn, adOpenKeyset, adLockPessimistic
rs_borrowbook.AddNew
rs_borrowbook.Fields(1) = Combo1.Text
rs_borrowbook.Fields(2) = Combo2.Text
rs_borrowbook.Fields(3) = Label8.Caption
rs_borrowbook.Fields(4) = Label9.Caption
rs_borrowbook.Fields(5) = Date
rs_borrowbook.Fields(6) = DateAdd("Ww", qixian, Date)
rs_borrowbook.Update
rs_borrowbook.Close
sql = "select * from 书籍信息 where 书籍编号='" & book_num & "'"
rs_borrowbook.Open sql, conn, adOpenKeyset, adLockPessimistic
rs_borrowbook.Fields(7) = "是"
rs_borrowbook.Update
rs_borrowbook.Close
sql = "select * from 读者信息 where 读者编号='" & Combo1.Text & "'"
rs_borrowbook.Open sql, conn, adOpenKeyset, adLockPessimistic
rs_borrowbook.Fields(8) = rs_borrowbook.Fields(8) + 1
rs_borrowbook.Update
rs_borrowbook.Close
MsgBox "本书借阅成功！", vbOKOnly + vbExclamation
Unload Me
End Sub

Private Sub Command2_Click()
Unload Me
End Sub

Private Sub Form_Load()
Dim rs_borrow As New ADODB.Recordset
Dim rs_reader As New ADODB.Recordset
Dim sql As String
sql = "select * from 书籍信息 where 书籍编号='" & book_num & "'"
rs_borrow.Open sql, conn, adOpenKeyset, adLockPessimistic
Label8.Caption = rs_borrow.Fields(0)
Label9.Caption = rs_borrow.Fields(1)
Label10.Caption = rs_borrow.Fields(2)
Label11.Caption = rs_borrow.Fields(3)
Label12.Caption = rs_borrow.Fields(4)
Label13.Caption = rs_borrow.Fields(5)
Label14.Caption = rs_borrow.Fields(6)
sql = "select * from 读者信息"
rs_reader.Open sql, conn, adOpenKeyset, adLockPessimistic
If Not rs_reader.EOF Then
   Do While Not rs_reader.EOF
      Combo1.AddItem rs_reader.Fields(1)
      Combo2.AddItem rs_reader.Fields(0)
      rs_reader.MoveNext
   Loop
Else
   MsgBox "请先登记读者！", vbOKOnly + vbExclamation
   Exit Sub
End If
rs_borrow.Close
rs_reader.Close
End Sub