📄 b借书.frm
字号:
VERSION 5.00
Object = "{86CF1D34-0C5F-11D2-A9FC-0000F8754DA1}#2.0#0"; "MSCOMCT2.OCX"
Begin VB.Form B借书
BorderStyle = 1 'Fixed Single
Caption = "借书"
ClientHeight = 4515
ClientLeft = 45
ClientTop = 330
ClientWidth = 7635
Icon = "B借书.frx":0000
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 4515
ScaleWidth = 7635
StartUpPosition = 3 '窗口缺省
Begin VB.Frame FrameBook
Caption = "借书信息"
Height = 4455
Left = 120
TabIndex = 7
Top = 0
Width = 7455
Begin VB.Frame Frame1
BackColor = &H00C0C0C0&
Height = 2415
Left = 3480
TabIndex = 14
Top = 360
Width = 3855
Begin VB.Label LblNum
BackColor = &H80000014&
ForeColor = &H000000FF&
Height = 255
Left = 1200
TabIndex = 28
Top = 2040
Width = 2175
End
Begin VB.Label Label7
Caption = "数量："
Height = 255
Index = 4
Left = 120
TabIndex = 27
Top = 2040
Width = 1095
End
Begin VB.Label Label7
Caption = "版次："
Height = 255
Index = 3
Left = 120
TabIndex = 26
Top = 1680
Width = 1095
End
Begin VB.Label LblPubNo
BackColor = &H80000014&
ForeColor = &H000000FF&
Height = 255
Left = 1200
TabIndex = 25
Top = 1680
Width = 2175
End
Begin VB.Label Label7
Caption = "作者："
Height = 255
Index = 2
Left = 120
TabIndex = 24
Top = 1320
Width = 1095
End
Begin VB.Label LblAuthor
BackColor = &H80000014&
ForeColor = &H000000FF&
Height = 255
Left = 1200
TabIndex = 23
Top = 1320
Width = 2175
End
Begin VB.Label LblBookName
BackColor = &H80000014&
ForeColor = &H000000FF&
Height = 255
Left = 1200
TabIndex = 22
Top = 960
Width = 2175
End
Begin VB.Label Label7
Caption = "题名："
Height = 255
Index = 1
Left = 120
TabIndex = 21
Top = 960
Width = 1095
End
Begin VB.Label LblNoReturn
BackColor = &H80000014&
ForeColor = &H000000FF&
Height = 255
Left = 2880
TabIndex = 20
Top = 240
Width = 735
End
Begin VB.Label Label9
Caption = "未还图书："
Height = 255
Left = 2040
TabIndex = 19
Top = 240
Width = 1095
End
Begin VB.Label LblValid
BackColor = &H80000014&
ForeColor = &H000000FF&
Height = 255
Left = 1440
TabIndex = 18
Top = 600
Width = 735
End
Begin VB.Label Label7
Caption = "超期图书："
Height = 255
Index = 0
Left = 120
TabIndex = 17
Top = 600
Width = 1335
End
Begin VB.Label Label3
Caption = "读者罚款："
Height = 255
Left = 120
TabIndex = 16
Top = 240
Width = 1215
End
Begin VB.Label LblPenalty
BackColor = &H80000014&
ForeColor = &H000000FF&
Height = 255
Left = 1320
TabIndex = 15
Top = 240
Width = 735
End
End
Begin VB.CommandButton CmdExit
BackColor = &H00C0C0C0&
Caption = "退出"
Height = 360
Left = 4800
Style = 1 'Graphical
TabIndex = 6
Top = 3960
Width = 800
End
Begin VB.CommandButton CmdCancel
BackColor = &H00C0C0C0&
Caption = "取消"
Height = 360
Left = 3960
Style = 1 'Graphical
TabIndex = 5
Top = 3960
Width = 800
End
Begin VB.CommandButton CmdSave
BackColor = &H00C0C0C0&
Caption = "借书"
Height = 360
Left = 3120
Style = 1 'Graphical
TabIndex = 4
Top = 3960
Width = 800
End
Begin VB.TextBox txtNum
BackColor = &H80000000&
Enabled = 0 'False
Height = 375
Left = 1200
MaxLength = 50
TabIndex = 8
Text = "0"
Top = 2040
Width = 2175
End
Begin VB.TextBox txtNotes
Height = 975
Left = 1200
MultiLine = -1 'True
ScrollBars = 3 'Both
TabIndex = 3
Top = 2880
Width = 4575
End
Begin VB.TextBox txtReadNo
Height = 375
Left = 1200
MaxLength = 10
TabIndex = 0
Top = 480
Width = 1695
End
Begin VB.TextBox txtBookNo
Height = 375
Left = 1200
MaxLength = 12
TabIndex = 1
Top = 1080
Width = 1695
End
Begin MSComCtl2.DTPicker DTPicker1
Height = 375
Left = 1200
TabIndex = 2
Top = 1560
Width = 1695
_ExtentX = 2990
_ExtentY = 661
_Version = 393216
Format = 71827457
CurrentDate = 39222
End
Begin VB.Label Label5
Caption = "罚款金额："
Height = 375
Index = 2
Left = 240
TabIndex = 13
Top = 2040
Width = 975
End
Begin VB.Label Label6
Caption = "借书日期："
Height = 375
Index = 1
Left = 240
TabIndex = 12
Top = 1560
Width = 975
End
Begin VB.Label Label1
Caption = $"B借书.frx":08CA
Height = 495
Index = 1
Left = 600
TabIndex = 11
Top = 2520
Width = 735
End
Begin VB.Label Label2
Caption = "读者号："
Height = 255
Left = 405
TabIndex = 10
Top = 600
Width = 735
End
Begin VB.Label Label4
Caption = "图书号："
Height = 255
Left = 405
TabIndex = 9
Top = 1200
Width = 735
End
End
End
Attribute VB_Name = "B借书"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim rs As ADODB.Recordset
Dim SQL As String
Dim msg As String
Dim Index As Integer
Private Sub Label8_Click(Index As Integer)
End Sub
Private Sub txtReadNo_Change()
SQL = " select 罚款金额 from 读者信息表 where 读者号='" & Trim(txtReadNo.Text) & "'"
Set rs = SelectSQL(SQL, msg)
If rs.RecordCount > 0 Then
Me.LblPenalty.Caption = rs.Fields("罚款金额")
Else
Me.LblPenalty.Caption = "无"
End If
SQL = " select count(*) as num from 借还信息表 where 读者号='" & Trim(txtReadNo.Text) & "'"
SQL = SQL & " and 还书日期 is null "
Set rs = SelectSQL(SQL, msg)
If rs.RecordCount > 0 Then
Me.LblNoReturn.Caption = rs.Fields("num")
Else
Me.LblNoReturn.Caption = "0"
End If
Dim validNum As Integer
SQL = " select count(*) as num from 借还信息表 where 读者号='" & Trim(txtReadNo.Text) & "'"
SQL = SQL & " and 还书日期 is null and 续借日期 is null "
SQL = SQL & "and datediff(day,借书日期,getdate())>" & Sys_BorrowLimite
Set rs = SelectSQL(SQL, msg)
If rs.RecordCount > 0 Then
validNum = rs.Fields("num")
End If
SQL = " select count(*) as num from 借还信息表 where 读者号='" & Trim(txtReadNo.Text) & "'"
SQL = SQL & " and 还书日期 is null and 续借日期 is not null "
SQL = SQL & "and datediff(day,借书日期,getdate())>" & Sys_BorrowLimite + Sys_ContinueLimite
Set rs = SelectSQL(SQL, msg)
If rs.RecordCount > 0 Then
validNum = validNum + rs.Fields("num")
Else
Me.LblValid.Caption = "0"
End If
If validNum = 0 Then
Me.LblValid.Caption = "0"
Else
Me.LblValid.Caption = validNum
End If
rs.Close
End Sub
Private Sub txtBookNo_Change()
SQL = " select 题名,作者,版次,图书数量 from 图书信息表 where 图书号='" & Trim(txtBookNo.Text) & "'"
Set rs = SelectSQL(SQL, msg)
If rs.RecordCount > 0 Then
Me.LblBookName.Caption = rs.Fields("题名")
Me.LblAuthor.Caption = rs.Fields("作者")
Me.LblPubNo.Caption = rs.Fields("版次")
Me.LblNum.Caption = rs.Fields("图书数量")
Else
Me.LblBookName.Caption = "无"
Me.LblAuthor.Caption = "无"
Me.LblPubNo.Caption = "无"
Me.LblNum.Caption = "0"
End If
rs.Close
End Sub
Private Sub CmdSave_Click()
On Error GoTo ErrMsg
If Not CheckData Then
Exit Sub
Else
Call setData
Call ExecuteSQL(SQL, msg)
SQL = " update 图书信息表 set 图书数量=图书数量-1 where 图书号='"
SQL = SQL & Trim(Me.txtBookNo.Text) & "'"
Call ExecuteSQL(SQL, msg)
MsgBox ("成功添加数据!")
Call txtBookNo_Change
Call txtReadNo_Change
End If
Exit Sub
ErrMsg:
MsgBox Err.Description, vbExclamation, "出错"
End Sub
Private Function CheckData() As Boolean
Dim msgt As String
msgt = ""
If Trim(Me.txtReadNo.Text) = "" Then
msgt = "读者号为空； "
ElseIf Trim(Me.txtBookNo.Text) = "" Then
msgt = "图书号为空； "
ElseIf Not Len(Trim(txtReadNo.Text)) = 10 Then
msgt = "读者号不是10位； "
ElseIf Not Len(Trim(txtBookNo.Text)) = 12 Then
msgt = "图书号不是12位； "
End If
If Not msgt = "" Then
MsgBox (msgt)
CheckData = False
Exit Function
End If
If (Me.LblPenalty.Caption = "无") Then
MsgBox ("读者号输入错误!")
CheckData = False
Exit Function
End If
If CInt(Me.LblNum.Caption) < 1 Then
MsgBox ("此书已被借出!")
CheckData = False
Exit Function
End If
If CDbl(Me.LblPenalty.Caption) > Sys_MaxPenalty Then
MsgBox ("请读者先交罚款!")
CheckData = False
Exit Function
End If
If CInt(Me.LblValid.Caption) > 0 Then
MsgBox ("请读者先归还超期的图书!")
CheckData = False
Exit Function
End If
If CInt(Me.LblNoReturn.Caption) >= Sys_MaxBorrow Then
MsgBox ("读者借书已经超过最大数量!")
CheckData = False
Exit Function
End If
If (Me.LblBookName.Caption = "无") Then
MsgBox ("图书号输入错误!")
CheckData = False
Exit Function
End If
CheckData = True
End Function
Private Sub setData()
SQL = "insert into 借还信息表 (读者号,图书号,借书日期,备注) values('"
SQL = SQL & Trim(Me.txtReadNo.Text) & "','"
SQL = SQL & Trim(Me.txtBookNo.Text) & "','"
SQL = SQL & Trim(Me.DTPicker1.Value) & "','"
SQL = SQL & Trim(Me.txtNotes.Text) & "')"
End Sub
Private Sub cmdCancel_Click()
Me.txtBookNo.Text = ""
Me.txtReadNo.Text = ""
Me.DTPicker1.Refresh
Me.txtNotes.Text = ""
End Sub
Private Sub CmdExit_Click()
图书管理系统.Enabled = True
Unload Me
End Sub
Private Sub Form_Unload(Cancel As Integer)
图书管理系统.Enabled = True
Unload Me
End Sub
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