frmselectdotest.frm

上机考试系统

VERSION 5.00
Begin VB.Form SelectDoTest 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "选择本次考题"
   ClientHeight    =   4170
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   7065
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MDIChild        =   -1  'True
   MinButton       =   0   'False
   ScaleHeight     =   4170
   ScaleWidth      =   7065
   Begin VB.CommandButton cmdOk 
      Caption         =   "确定"
      Default         =   -1  'True
      Height          =   315
      Left            =   1440
      TabIndex        =   3
      Top             =   1110
      Width           =   795
   End
   Begin VB.CommandButton cmdExit 
      Cancel          =   -1  'True
      Caption         =   "退出"
      Height          =   315
      Left            =   2370
      TabIndex        =   2
      Top             =   1110
      Width           =   795
   End
   Begin VB.ComboBox cmbTest 
      Height          =   300
      Left            =   1492
      Style           =   2  'Dropdown List
      TabIndex        =   1
      Top             =   435
      Width           =   2385
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      Caption         =   "试卷名称"
      Height          =   180
      Left            =   727
      TabIndex        =   0
      Top             =   495
      Width           =   720
   End
End
Attribute VB_Name = "SelectDoTest"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim objCn As New Connection, objOld As Recordset
Private Sub cmdExit_Click()
    Unload Me
End Sub

Private Sub cmdOk_Click()
    Dim strSQL$
    '将选择的考试题数据表数据复制道ThisTest数据表中
    With objCn
        strSQL = "Drop Table ThisTest"
        .Execute strSQL
        strSQL = "select 编号,题型,分数 into ThisTest From " & cmbTest
        .Execute strSQL
    End With
    MsgBox "试题选择成功！", vbInformation, Me.Caption
End Sub

Private Sub Form_Load()
    With objCn                                 '建立数据库联接
        .Provider = "SQLOLEDB"
        .ConnectionString = "User ID=sa;PWD=123;Data Source=(local);" & _
                            "Initial Catalog=自测考试"
        .Open
    End With
    '访问数据库获得历届试题数据
    Set objOld = New Recordset                '实例化对象
    With objOld
        Set .ActiveConnection = objCn           '建立数据库连接
        .CursorLocation = adUseClient           '指定使用客户端游标
        .CursorType = adOpenStatic              '指定使用静态游标
        .Open "SELECT * FROM 历届试题"          '获取历届试题数据
        Set .ActiveConnection = Nothing         '断开数据库连接
        If .RecordCount > 0 Then
            .MoveFirst
            While Not .EOF
                cmbTest.AddItem .Fields("表名")
                .MoveNext
            Wend
        End If
        cmbTest.ListIndex = 0
    End With
End Sub


Private Sub Form_Unload(Cancel As Integer)
    objCn.Close                      '关闭数据库连接
    Set objOld = Nothing
    Set objCn = Nothing
End Sub