End
   Begin VB.Label Label2 
      Caption         =   "年級(jí)："
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   10.8
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   252
      Left            =   3720
      TabIndex        =   6
      Top             =   600
      Width           =   732
   End
   Begin VB.Label Label3 
      Alignment       =   2  'Center
      Caption         =   "班主任："
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   10.8
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   252
      Left            =   960
      TabIndex        =   5
      Top             =   1320
      Width           =   972
   End
   Begin VB.Label Label4 
      Caption         =   "教室："
      BeginProperty Font 
         Name            =   "宋體"
         Size            =   10.8
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   252
      Left            =   3720
      TabIndex        =   4
      Top             =   1320
      Width           =   732
   End
End
Attribute VB_Name = "frmModifyclassinfo"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim mrc As ADODB.Recordset
Dim myBookmark As Variant
Dim mcclean As Boolean

Private Sub cancelCommand_Click()
    If Not mcclean Then
        Frame2.Enabled = True
        firstCommand.Enabled = True
        previousCommand.Enabled = True
        nextCommand.Enabled = True
        lastCommand.Enabled = True
            
        txtClassno.Enabled = False
        comboGrade.Enabled = False
        txtDirector.Enabled = False
        txtClassroom.Enabled = False
        
        mrc.Bookmark = myBookmark
        Call viewData
    Else
        MsgBox "什么都沒(méi)有修改，有什么好取消的！", vbOKOnly + vbExclamation, "警告"
    End If
End Sub

Private Sub deleteCommand_Click()
    myBookmark = mrc.Bookmark
    str2$ = MsgBox("是否刪除當(dāng)前記錄？", vbOKCancel, "刪除當(dāng)前記錄")
    If str2$ = vbOK Then
            mrc.MoveNext
            If mrc.EOF Then
                mrc.MoveFirst
                myBookmark = mrc.Bookmark
                mrc.MoveLast
                mrc.Delete
                mrc.Bookmark = myBookmark
                Call viewData
            Else
                myBookmark = mrc.Bookmark
                mrc.MovePrevious
                mrc.Delete
                mrc.Bookmark = myBookmark
                Call viewData
            End If
    Else
        mrc.Bookmark = myBookmark
        Call viewData
    End If
End Sub

Private Sub editCommand_Click()
    mcclean = False
    Frame2.Enabled = False
    firstCommand.Enabled = False
    previousCommand.Enabled = False
    nextCommand.Enabled = False
    lastCommand.Enabled = False
        
    txtClassno.Enabled = True
    comboGrade.Enabled = True
    txtDirector.Enabled = True
    txtClassroom.Enabled = True
    
    comboGrade.AddItem "初中一年級(jí)"
    comboGrade.AddItem "初中二年級(jí)"
    comboGrade.AddItem "初中三年級(jí)"
    comboGrade.AddItem "高中一年級(jí)"
    comboGrade.AddItem "高中二年級(jí)"
    comboGrade.AddItem "高中三年級(jí)"
    
    myBookmark = mrc.Bookmark
End Sub

Private Sub firstCommand_Click()
    mrc.MoveFirst
    Call viewData
End Sub

Private Sub Form_Load()
    Dim txtSQL As String
    Dim MsgText As String
    
    txtClassno.Enabled = False
    comboGrade.Enabled = False
    txtDirector.Enabled = False
    txtClassroom.Enabled = False
    
    txtSQL = "select * from class_Info "
    Set mrc = ExecuteSQL(txtSQL, MsgText)
    mrc.MoveFirst
    Call viewData
    myBookmark = mrc.Bookmark
    mcclean = True
    
    
End Sub

Public Sub viewData()
    txtClassno.Text = mrc.Fields(0)
    comboGrade.Text = mrc.Fields(1)
    txtDirector.Text = mrc.Fields(2)
    txtClassroom.Text = mrc.Fields(3)
    
End Sub

Private Sub lastCommand_Click()
    mrc.MoveLast
    Call viewData
End Sub

Private Sub nextCommand_Click()
    mrc.MoveNext
    If mrc.EOF Then
        mrc.MoveFirst
    End If
    Call viewData
End Sub

Private Sub previousCommand_Click()
    mrc.MovePrevious
    If mrc.BOF Then
        mrc.MoveLast
    End If
    Call viewData
End Sub

Private Sub updateCommand_Click()
    Dim txtSQL As String
    Dim MsgText As String
    Dim mrcc As ADODB.Recordset
    
    If mcclean Then
        MsgBox "請(qǐng)先修改班級(jí)信息", vbOKOnly + vbExclamation, "警告"
        Exit Sub
    End If
    
    If Not Testtxt(txtClassno.Text) Then
        MsgBox "請(qǐng)輸入班號(hào)！", vbOKOnly + vbExclamation, "警告"
        txtClassno.SetFocus
        Exit Sub
    End If
    
    If Not IsNumeric(Trim(txtClassno.Text)) Then
        MsgBox "請(qǐng)輸入數(shù)字！", vbOKOnly + vbExclamation, "警告"
        Exit Sub
        txtClassno.SetFocus
    End If
    
        
    If Not Testtxt(comboGrade.Text) Then
        MsgBox "請(qǐng)選擇年級(jí)！", vbOKOnly + vbExclamation, "警告"
        comboGrade.SetFocus
        
        Exit Sub
    End If
    
    If Not Testtxt(txtDirector.Text) Then
        MsgBox "請(qǐng)輸入班主任姓名！", vbOKOnly + vbExclamation, "警告"
        txtDirector.SetFocus
        Exit Sub
    End If
    
    
    If Not Testtxt(txtClassroom.Text) Then
        MsgBox "請(qǐng)輸入教室號(hào)碼！", vbOKOnly + vbExclamation, "警告"
        txtClassroom.SetFocus
        Exit Sub
    End If
    
    mrc.Delete
    txtSQL = "select * from class_Info where class_No = '" & Trim(txtClassno.Text) & "'"
    Set mrcc = ExecuteSQL(txtSQL, MsgText)
    If mrcc.EOF = False Then
        MsgBox "班號(hào)重復(fù)，請(qǐng)重新輸入！", vbOKOnly + vbExclamation, "警告"
        mrcc.Close
        txtClassno.SetFocus
    Else
        mrcc.Close
        mrc.AddNew
        mrc.Fields(0) = Trim(txtClassno.Text)
        mrc.Fields(1) = Trim(comboGrade.Text)
        mrc.Fields(2) = Trim(txtDirector.Text)
        mrc.Fields(3) = Trim(txtClassroom.Text)
        mrc.Update
        MsgBox "修改班級(jí)信息成功！", vbOKOnly + vbExclamation, "警告"
        mrc.Bookmark = myBookmark
        Call viewData
        Frame2.Enabled = True
        firstCommand.Enabled = True
        previousCommand.Enabled = True
        nextCommand.Enabled = True
        lastCommand.Enabled = True
        
        txtClassno.Enabled = False
        comboGrade.Enabled = False
        txtDirector.Enabled = False
        txtClassroom.Enabled = False
                
        mcclean = True
    End If
End Sub