frmfindbook.frm

这是用VB做的 你们可以那去事实

VERSION 5.00
Begin VB.Form frmfindbookinfo 
   Caption         =   "图书信息管理"
   ClientHeight    =   6990
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   9840
   LinkTopic       =   "Form1"
   ScaleHeight     =   6990
   ScaleWidth      =   9840
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command3 
      Caption         =   "借这本书"
      Height          =   495
      Left            =   3600
      TabIndex        =   13
      Top             =   6240
      Width           =   2775
   End
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      Height          =   495
      Left            =   5640
      TabIndex        =   12
      Top             =   1560
      Width           =   1335
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      Height          =   495
      Left            =   3000
      TabIndex        =   11
      Top             =   1560
      Width           =   1335
   End
   Begin VB.PictureBox DataGrid1 
      Height          =   3615
      Left            =   120
      ScaleHeight     =   3555
      ScaleWidth      =   9555
      TabIndex        =   10
      Top             =   2280
      Width           =   9615
   End
   Begin VB.TextBox Text4 
      Height          =   375
      Left            =   6000
      TabIndex        =   9
      Top             =   840
      Width           =   3615
   End
   Begin VB.TextBox Text3 
      Height          =   375
      Left            =   6000
      TabIndex        =   8
      Top             =   240
      Width           =   3615
   End
   Begin VB.CheckBox Check5 
      Caption         =   "出版社"
      Height          =   375
      Left            =   5040
      TabIndex        =   7
      Top             =   840
      Width           =   855
   End
   Begin VB.CheckBox Check4 
      Caption         =   "编号"
      Height          =   375
      Left            =   5040
      TabIndex        =   6
      Top             =   240
      Width           =   855
   End
   Begin VB.ComboBox Combo1 
      Height          =   300
      Left            =   1200
      TabIndex        =   5
      Top             =   840
      Width           =   1455
   End
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   3360
      TabIndex        =   4
      Top             =   840
      Width           =   1455
   End
   Begin VB.CheckBox Check3 
      Caption         =   "作者"
      Height          =   375
      Left            =   2640
      TabIndex        =   3
      Top             =   840
      Width           =   735
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   1200
      TabIndex        =   2
      Top             =   240
      Width           =   3615
   End
   Begin VB.CheckBox Check2 
      Caption         =   "图书类别"
      Height          =   375
      Left            =   120
      TabIndex        =   1
      Top             =   840
      Width           =   1215
   End
   Begin VB.CheckBox Check1 
      Caption         =   "书名"
      Height          =   375
      Left            =   120
      TabIndex        =   0
      Top             =   240
      Width           =   975
   End
End
Attribute VB_Name = "frmfindbookinfo"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim panduan As String

Private Sub Command1_Click()
Dim rs_findbook As New ADODB.Recordset
Dim conn As New ADODB.Connection
Dim sql As String
If Check1.Value = vbChecked Then
  sql = "书名='" & Trim(Text1.Text & "") & "'"
End If
If Check2.Value = vbChecked Then
  If Trim(sql) = "" Then
    sql = "类别='" & Trim(Combo1.Text & " ") & "'"
  Else
    sql = sql & "and 类别='" & Trim(Combo1.Text & " ") & "'"
  End If
End If
If Check3.Value = vbChecked Then
  If Trim(sql) = "" Then
    sql = "作者='" & Trim(Text2.Text & " ") & "'"
  Else
    sql = sql & "and 作者='" & Trim(Text2.Text & " ") & "'"
  End If
End If
If Check4.Value = vbChecked Then
  If Trim(sql) = "" Then
    sql = "图书编号='" & Trim(Text3.Text & " ") & "'"
  Else
    sql = sql & "and 图书编号='" & Trim(Text3.Text & " ") & "'"
  End If
End If
If Check5.Value = vbChecked Then
  If Trim(sql) = "" Then
    sql = "出版社='" & Trim(Text4.Text & " ") & "'"
  Else
    sql = sql & "and 出版社='" & Trim(Text4.Text & " ") & "'"
  End If
End If

conn.Open "provider=Microsoft.Jet.OLEDB.4.0; data source=" & App.Path & "\database.mdb"
If Trim(sql) = "" Then
  MsgBox "请选择查询方式!", vbOKOnly + vbExclamation
  Exit Sub
End If
sql = "select * from 书籍信息 where " & sql
rs_findbook.CursorLocation = adUseClient
rs_findbook.Open sql, conn, adOpenKeyset, adLockPessimistic
DataGrid1.AllowAddNew = False
DataGrid1.AllowDelete = False
DataGrid1.AllowUpdate = False
If rs_findbook.RecordCount = 0 Then
  MsgBox "查询不到该图书信息!", vbOKOnly + vbExclamation
Else
  Set DataGrid1.DataSource = rs_findbook
End If
End Sub

Private Sub Command2_Click()
Unload Me
End Sub

Private Sub Command3_Click()
 If Trim(book_num) = "" Then
   MsgBox "请选择要借阅的图书!", vbOKOnly + vbExclamation
   Exit Sub
 End If
 If panduan = "是" Then
   MsgBox "此书已被借出!", vbOKOnly + vbExclamation
   Exit Sub
 End If
 Unload Me
frmborrowbook.Show
End Sub

Private Sub DataGrid1_RowColChange(LastRow As Variant, ByVal LastCol As Integer)
  book_num = DataGrid1.Columns(0).CellValue(DataGrid1.Bookmark)
  panduan = DataGrid1.Columns(7).CellValue(DataGrid1.Bookmark)
End Sub

Private Sub Form_Load()
 Dim rs_find As New ADODB.Recordset
 Dim conn As New ADODB.Connection
 Dim sql As String
 sql = "select * from 图书类别"
 conn.Open "provider=Microsoft.Jet.OLEDB.4.0; data source=" & App.Path & "\database.mdb"
 rs_find.Open sql, conn, adOpenKeyset, adLockPessimistic
 rs_find.MoveFirst
 If Not rs_find.EOF Then
    Do While Not rs_find.EOF
       Combo1.AddItem rs_find.Fields(0)
       rs_find.MoveNext
    Loop
    Combo1.ListIndex = 0
 End If
 rs_find.Close
 End Sub