frmbookreturn.frm

图书管理系统 欢迎大家来使用 谢谢!

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Object = "{CDE57A40-8B86-11D0-B3C6-00A0C90AEA82}#1.0#0"; "MSDATGRD.OCX"
Begin VB.Form Frmbookreturn 
   Caption         =   "Form1"
   ClientHeight    =   3720
   ClientLeft      =   60
   ClientTop       =   465
   ClientWidth     =   6210
   LinkTopic       =   "Form1"
   ScaleHeight     =   3720
   ScaleWidth      =   6210
   StartUpPosition =   3  '窗口缺省
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   375
      Left            =   1920
      Top             =   2880
      Visible         =   0   'False
      Width           =   2175
      _ExtentX        =   3836
      _ExtentY        =   661
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   8
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   $"Frmbookreturn.frx":0000
      OLEDBString     =   $"Frmbookreturn.frx":008C
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   "select * from Borrow_book"
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin MSDataGridLib.DataGrid DataGrid1 
      Bindings        =   "Frmbookreturn.frx":0118
      Height          =   1815
      Left            =   480
      TabIndex        =   3
      Top             =   720
      Width           =   4935
      _ExtentX        =   8705
      _ExtentY        =   3201
      _Version        =   393216
      HeadLines       =   1
      RowHeight       =   15
      FormatLocked    =   -1  'True
      BeginProperty HeadFont {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ColumnCount     =   3
      BeginProperty Column00 
         DataField       =   "borrow_id"
         Caption         =   "图书编号"
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   2052
            SubFormatType   =   0
         EndProperty
      EndProperty
      BeginProperty Column01 
         DataField       =   "borrow_name"
         Caption         =   "图书名称"
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   2052
            SubFormatType   =   0
         EndProperty
      EndProperty
      BeginProperty Column02 
         DataField       =   "borrow_type"
         Caption         =   "图书类型"
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   2052
            SubFormatType   =   0
         EndProperty
      EndProperty
      SplitCount      =   1
      BeginProperty Split0 
         BeginProperty Column00 
         EndProperty
         BeginProperty Column01 
         EndProperty
         BeginProperty Column02 
         EndProperty
      EndProperty
   End
   Begin VB.CommandButton Command2 
      Caption         =   "返  回"
      Height          =   495
      Left            =   4440
      TabIndex        =   1
      Top             =   2880
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "我要还"
      Height          =   495
      Left            =   240
      TabIndex        =   0
      Top             =   2880
      Width           =   1215
   End
   Begin VB.Label Label1 
      Caption         =   "你已借了以下几本书："
      Height          =   255
      Left            =   480
      TabIndex        =   2
      Top             =   240
      Width           =   1815
   End
End
Attribute VB_Name = "Frmbookreturn"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim Yn As String
Dim Return_date As Integer
Dim Yborrow As Boolean
Dim book_id, book_name, book_type As String

Private Sub Command1_Click()

'Adodc1.Refresh
'DataGrid1.Refresh

Open_borrow_book
Do While cnn.EOF = False
If cnn.EOF = True Then
Exit Do
End If
If cnn.Fields(3).Value = DataGrid1.Text Then
Yn = DataGrid1.Text


DataGrid1.Col = 0
book_id = DataGrid1.Text
DataGrid1.Col = 1
book_name = DataGrid1.Text
DataGrid1.Col = 2
book_type = DataGrid1.Text
DataGrid1.Col = 0
Return_date = cnn.Fields(8).Value

cnn.Delete
cnn.Update
Adodc1.Refresh
DataGrid1.Refresh


Ynborrow

Adodc1.Refresh
DataGrid1.Refresh

Exit Do
End If
cnn.MoveNext
Loop





Borrow_no = Borrow_no - 1
Open_Student_message
Do While cnn.EOF = False
If cnn.EOF = True Then
Exit Sub
End If
If cnn.Fields(0).Value = student_ic Then
cnn.Fields(5).Value = Borrow_no
'MsgBox Borrow_no
End If
cnn.MoveNext
Loop

return_money
book_money




If DataGrid1.Row = -1 Then
Command1.Enabled = False
Exit Sub
Else
Command1.Enabled = True
End If
End Sub




Private Sub Command2_Click()
Unload Me
End Sub

Private Sub Form_Load()

set_window

'Adodc1.RecordSource = "select * from Borrow_book where  " &  & "=" & "'" & student_ic & "'"
Adodc1.RecordSource = "select * from Borrow_book where  student_ic=" & "'" & student_ic & "'"

Adodc1.Refresh


If DataGrid1.Row = -1 Then
Command1.Enabled = False
Exit Sub
Else
Command1.Enabled = True
End If
Adodc1.Refresh
DataGrid1.Refresh
End Sub
Public Sub Open_borrow_book1()
Set cnn2 = New ADODB.Recordset
cn = "select * from Borrow_book"
cnn2.Open cn, st, adOpenKeyset, adLockOptimistic, adcmtext
End Sub

Public Sub Ynborrow()

Yborrow = False
Open_book_message
Do While cnn.EOF = False
If cnn.EOF = True Then
Exit Do
End If

Open_borrow_book1
Do While cnn2.EOF = False
If cnn2.EOF = True Then
Exit Do
End If
If Trim(cnn.Fields(0).Value) = Trim(cnn2.Fields(3).Value) Then
'cnn.Fields(9).Value = "已借"
Yborrow = True
End If
cnn2.MoveNext
Loop

If Yborrow = True Then
cnn.Fields(9).Value = "已借"
Else
cnn.Fields(9).Value = "可借"
End If
Yborrow = False

cnn.MoveNext
Loop

End Sub

Public Sub return_money()
Open_Student_message
Do While cnn.EOF = False
If cnn.EOF = True Then
Exit Do
End If

If cnn.Fields(0).Value = student_ic And Val(Return_date) < 0 Then

      'If Val(Return_date) > 0 Then
        cnn.Fields(6).Value = cnn.Fields(6).Value + (-Return_date) * window_money
        MsgBox "你这本书已经欠费啦！"
         MsgBox window_money

        'Exit Do
    ' End If
End If
cnn.MoveNext
Loop
End Sub

Public Sub book_money()
If Return_date < 0 Then
Open_book_money
cnn.AddNew
cnn.Fields(0).Value = student_ic
cnn.Fields(1).Value = book_id
cnn.Fields(2).Value = book_name
cnn.Fields(3).Value = book_type
cnn.Fields(4).Value = -Return_date
cnn.Fields(5).Value = -Return_date * window_money
cnn.Update
End If
End Sub