📄 frmborrowbook.frm
字号:
VERSION 5.00
Begin VB.Form 借书
Caption = "借书"
ClientHeight = 5655
ClientLeft = 60
ClientTop = 450
ClientWidth = 6990
LinkTopic = "Form1"
ScaleHeight = 5655
ScaleWidth = 6990
StartUpPosition = 2 '屏幕中心
Begin VB.CommandButton Command2
Caption = "取消"
Height = 375
Left = 5760
TabIndex = 21
Top = 5160
Width = 1215
End
Begin VB.CommandButton Command1
Caption = "确定"
Height = 375
Left = 4440
TabIndex = 20
Top = 5160
Width = 1215
End
Begin VB.Frame Frame2
Caption = "读者信息"
Height = 2175
Left = 120
TabIndex = 15
Top = 2640
Width = 6735
Begin VB.ComboBox Combo2
BackColor = &H00E0E0E0&
Height = 300
Left = 2280
TabIndex = 19
Text = "选择姓名"
Top = 1080
Width = 2295
End
Begin VB.ComboBox Combo1
BackColor = &H00E0E0E0&
Height = 300
Left = 2280
TabIndex = 18
Text = "选择编号"
Top = 360
Width = 2295
End
Begin VB.Label Label16
Caption = "读者姓名"
Height = 255
Left = 960
TabIndex = 17
Top = 1080
Width = 1215
End
Begin VB.Label Label15
Caption = "读者编号"
Height = 255
Left = 960
TabIndex = 16
Top = 360
Width = 1215
End
End
Begin VB.Frame Frame1
Caption = "书籍信息"
Height = 2295
Left = 120
TabIndex = 0
Top = 120
Width = 6735
Begin VB.Label Label18
Caption = "图书价格"
Height = 255
Left = 3240
TabIndex = 23
Top = 240
Width = 855
End
Begin VB.Label Label17
Caption = "类别"
Height = 255
Left = 3480
TabIndex = 22
Top = 720
Width = 495
End
Begin VB.Label Label14
Caption = "Label14"
Height = 255
Left = 4440
TabIndex = 14
Top = 1680
Width = 855
End
Begin VB.Label Label13
Caption = "Label13"
Height = 255
Left = 4440
TabIndex = 13
Top = 1200
Width = 1455
End
Begin VB.Label Label12
Caption = "Label12"
Height = 255
Left = 4440
TabIndex = 12
Top = 720
Width = 1455
End
Begin VB.Label Label11
Caption = "Label11"
Height = 255
Left = 1200
TabIndex = 11
Top = 1680
Width = 1455
End
Begin VB.Label Label10
Caption = "Label10"
Height = 255
Left = 1200
TabIndex = 10
Top = 1200
Width = 1455
End
Begin VB.Label Label9
Caption = "Label9"
Height = 255
Left = 1200
TabIndex = 9
Top = 720
Width = 1455
End
Begin VB.Label Label8
Caption = "Label8"
Height = 255
Left = 1200
TabIndex = 8
Top = 240
Width = 1455
End
Begin VB.Label Label7
Caption = "登记日期"
Height = 255
Left = 3360
TabIndex = 7
Top = 1680
Width = 855
End
Begin VB.Label Label6
Caption = "出版社"
Height = 255
Left = 3480
TabIndex = 6
Top = 1200
Width = 615
End
Begin VB.Label Label5
Caption = "Label5"
Height = 255
Left = 4440
TabIndex = 5
Top = 240
Width = 975
End
Begin VB.Label Label4
Caption = "出版日期"
Height = 255
Left = 120
TabIndex = 4
Top = 1680
Width = 855
End
Begin VB.Label Label3
Caption = "作者"
Height = 255
Left = 480
TabIndex = 3
Top = 1200
Width = 495
End
Begin VB.Label Label2
Caption = "书名"
Height = 255
Left = 480
TabIndex = 2
Top = 720
Width = 495
End
Begin VB.Label Label1
Caption = "编号"
Height = 255
Left = 480
TabIndex = 1
Top = 240
Width = 495
End
End
End
Attribute VB_Name = "借书"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim leibie As String '该读者的类别
Dim qixian As String '该读者借书的期限
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
Dim conn As New ADODB.Connection
conn.Open "provider=Microsoft.Jet.OLEDB.4.0; data source=" & App.Path & "\database.mdb"
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) = Date + qixian
rs_borrowbook.Update
rs_borrowbook.Close
sql = "select * from 书籍信息 where 图书编号='" & book_num & "'"
rs_borrowbook.Open sql, conn, adOpenKeyset, adLockPessimistic
If rs_borrowbook.Fields(8) = "是" Then
MsgBox "该图书已经借出！", vbOKOnly + vbExclamation
Exit Sub
Else
rs_borrowbook.Fields(8) = "是"
rs_borrowbook.Update
End If
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 conn As New ADODB.Connection
Dim sql As String
Dim sqlreader As String
conn.Open "provider=Microsoft.Jet.OLEDB.4.0; data source=" & App.Path & "\database.mdb"
sql = "select * from 书籍信息 where 图书编号='" & 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(3)
Label11.Caption = rs_borrow.Fields(5)
Label12.Caption = rs_borrow.Fields(2)
Label13.Caption = rs_borrow.Fields(4)
Label14.Caption = rs_borrow.Fields(6)
Label5.Caption = rs_borrow.Fields(7)
sqlreader = "select * from 读者信息"
rs_reader.Open sqlreader, 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
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