【VB开源代码栏目提醒】：网学会员鉴于大家对VB开源代码十分关注，论文会员在此为大家搜集整理了“frmfindborrowinfo.frm”一文，供大家参考学习

    VERSION 5.00
    Object = "{CDE57A40-8B86-11D0-B3C6-00A0C90AEA82}#1.0#0"; "MSDATGRD.OCX"
    Begin VB.Form frmfindborrowinfo 
       Caption         =   "查询借书信息"
       ClientHeight    =   9045
       ClientLeft      =   60
       ClientTop       =   450
       ClientWidth     =   10860
       LinkTopic       =   "Form2"
       MaxButton       =   0   'False
       ScaleHeight     =   9045
       ScaleWidth      =   10860
       StartUpPosition =   2  '屏幕中心
       WindowState     =   2  'Maximized
       Begin VB.Frame Frame2 
          Caption         =   "查询结果"
          Height          =   5895
          Left            =   600
          TabIndex        =   7
          Top             =   2760
          Width           =   9735
          Begin MSDataGridLib.DataGrid DataGrid1 
             Height          =   5295
             Left            =   240
             TabIndex        =   8
             Top             =   360
             Width           =   9255
             _ExtentX        =   16325
             _ExtentY        =   9340
             _Version        =   393216
             HeadLines       =   1
             RowHeight       =   15
             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     =   2
             BeginProperty Column00 
                DataField       =   ""
                Caption         =   ""
                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       =   ""
                Caption         =   ""
                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
             EndProperty
          End
       End
       Begin VB.CommandButton Command2 
          Caption         =   "取消"
          Height          =   495
          Left            =   5880
          TabIndex        =   6
          Top             =   2160
          Width           =   1575
       End
       Begin VB.CommandButton Command1 
          Caption         =   "开始查询"
          Height          =   495
          Left            =   3000
          TabIndex        =   5
          Top             =   2160
          Width           =   1575
       End
       Begin VB.Frame Frame1 
          Height          =   1695
          Left            =   600
          TabIndex        =   0
          Top             =   240
          Width           =   9735
          Begin VB.TextBox Text1 
             Height          =   375
             Left            =   4440
             TabIndex        =   4
             Top             =   960
             Width           =   2655
          End
          Begin VB.OptionButton Option3 
             Caption         =   "按读者查询"
             Height          =   495
             Left            =   1920
             TabIndex        =   3
             Top             =   960
             Width           =   1815
          End
          Begin VB.OptionButton Option2 
             Caption         =   "查询未借出图书"
             Height          =   375
             Left            =   4800
             TabIndex        =   2
             Top             =   360
             Width           =   1695
          End
          Begin VB.OptionButton Option1 
             Caption         =   "查询已借出图书"
             Height          =   495
             Left            =   1920
             TabIndex        =   1
             Top             =   240
             Width           =   1695
          End
       End
    End
    Attribute VB_Name = "frmfindborrowinfo"
    Attribute VB_GlobalNameSpace = False
    Attribute VB_Creatable = False
    Attribute VB_PredeclaredId = True
    Attribute VB_Exposed = False
    Option Explicit
    
    Private Sub Command1_Click()
    Dim sql As String
    Dim rs_find As New ADODB.Recordset
    If Option1.Value = True Then
       sql = "select * from 书籍信息 where 是否被借出='是'"
    End If
    If Option2.Value = True Then
       sql = "select * from 书籍信息 where 是否被借出='否'"
    End If
    If Option3.Value = True Then
       sql = "select * from 借阅信息 where 读者='" & Text1.Text & "'"
    End If
       rs_find.CursorLocation = adUseClient
       rs_find.Open sql, conn, adOpenKeyset, adLockPessimistic
       DataGrid1.AllowAddNew = False
       DataGrid1.AllowDelete = False
       DataGrid1.AllowUpdate = False
       Set DataGrid1.DataSource = rs_find
    End Sub
    
    Private Sub Command2_Click()
    Unload Me
    End Sub