cmdModify.Enabled = False
        cmdNext.Enabled = False
        cmdPrevious.Enabled = False
    Else
        MsgBox "無此條記錄", vbExclamation, "提示"
        Exit Sub
    End If
End If
End Sub

Private Sub cmdNew_Click()
On Error Resume Next
InitItem
AddNew = True
txtXH.SetFocus
End Sub

Private Sub cmdNext_Click()

On Error Resume Next
If recForSHSJB.RecordCount = 0 Then
    MsgBox "表中無記錄", vbInformation, "提示"
    Exit Sub
End If
If BookMark = recForSHSJB.RecordCount Then
    MsgBox "這是最后一條記錄!", vbInformation, "提示"
    FillIn
Else
    BookMark = BookMark + 1
    recForSHSJB.MoveNext
    FillIn
End If
End Sub

Private Sub cmdPrevious_Click()
On Error Resume Next
If recForSHSJB.RecordCount = 0 Then
    MsgBox "表中無記錄!", vbInformation, "提示"
    Exit Sub
End If
If BookMark = 1 Then
    MsgBox "這是第一條記錄!", vbInformation, "提示"
    FillIn
Else
    BookMark = BookMark - 1
    recForSHSJB.MovePrevious
    FillIn
End If
End Sub

Private Sub cmdSave_Click()
On Error Resume Next
Dim sqlForInsert As String
If cmdSave.Caption = "存儲" Then
cmdSave.Caption = "保存"
cmdSave.Enabled = False
cmdPrevious.Enabled = True
cmdNext.Enabled = True
cmdModify.Enabled = True
cmdDelete.Enabled = True
Exit Sub
End If


If CheckItem = True Then
    sqlForInsert = "insert into shsjb(xh,xm,bj,yx,dh,gz,jl) "
    sqlForInsert = sqlForInsert + "values('" + Trim(txtXH) + "','" + Trim(txtXM) + "',"
    sqlForInsert = sqlForInsert + "'" + Trim(txtBJ) + "','" + Trim(txtYX) + "',"
    sqlForInsert = sqlForInsert + "'" + Trim(txtDH) + "','" + Trim(txtGZ) + "',"
    sqlForInsert = sqlForInsert + "'" + Trim(txtJL) + "')"
    Dbstudent.Execute sqlForInsert
    If MsgBox("繼續添加記錄?", vbQuestion + vbYesNo) = vbYes Then
        InitItem
        txtXH.SetFocus
        Exit Sub
    End If
    cmdSave.Enabled = False
    UpdateRecord
    AddNew = False
    InitItem
    FillIn
    txtXH.SetFocus
Else
    MsgBox "時間輸入有誤", vbCritical, "提示"
End If
End Sub

Private Sub Form_Load()
On Error Resume Next
UpdateRecord
Modify = False
cmdSave.Enabled = False
AddNew = False
If RecordCount <> 0 Then
   FillIn
End If
Line2.X1 = 0
Line2.X2 = frmForSHSJB.Width
End Sub
'顯示當前記錄
Public Sub FillIn()
On Error Resume Next
If recForSHSJB.RecordCount = 0 Then
    MsgBox "無當前數據!", vbExclamation, "提示"
    Exit Sub
End If
If Not IsNull(recForSHSJB!XH) Then txtXH = recForSHSJB!XH
If Not IsNull(recForSHSJB!XM) Then txtXM = recForSHSJB!XM
If Not IsNull(recForSHSJB!BJ) Then txtBJ = recForSHSJB!BJ
If Not IsNull(recForSHSJB!YX) Then txtYX = recForSHSJB!YX
If Not IsNull(recForSHSJB!DH) Then txtDH = recForSHSJB!DH
If Not IsNull(recForSHSJB!GZ) Then txtGZ = recForSHSJB!GZ
If Not IsNull(recForSHSJB!JL) Then txtJL = recForSHSJB!JL
End Sub
'數據測試
Function CheckItem() As Boolean
On Error Resume Next
CheckItem = True
End Function
'數據集中有否此記錄
Function XHInSHSJB(ByVal XHForDetect As String) As Boolean
On Error Resume Next
Dim sqlForXH As String
Dim recForXH As Recordset
XHInSHSJB = True
sqlForXH = "select top 1 * from shsjb where xh='" + XHForDetect + "'"
Set recForXH = Dbstudent.OpenRecordset(sqlForXH, dbOpenSnapshot)
If recForXH.RecordCount = 0 Then
    XHInSHSJB = False
End If
End Function
'更新記錄集,記錄號,記錄數
Public Sub UpdateRecord()
On Error Resume Next
Dim sqlForshsjb As String
sqlForshsjb = "select * from shsjb"
Set recForSHSJB = Dbstudent.OpenRecordset(sqlForshsjb, dbOpenSnapshot)
BookMark = 1
If recForSHSJB.RecordCount <> 0 Then
    recForSHSJB.MoveLast
    recForSHSJB.MoveFirst
    RecordCount = recForSHSJB.RecordCount
Else
    RecordCount = 0
    BookMark = 0
End If
End Sub

Public Sub InitItem()
On Error Resume Next
txtXH = ""
txtXM = ""
txtBJ = ""
txtYX = ""
txtDH = ""
txtGZ = ""
txtJL = ""
End Sub

Private Sub txtBJ_KeyPress(KeyAscii As Integer)
On Error Resume Next
Dim sqlModify As String
Dim BookMarkSave As Integer
Dim I As Integer
If KeyAscii = 13 Then
    If Modify Then
        sqlModify = "update shsjb set bj='" + Trim(txtBJ) + "' where id=" + Trim(recForSHSJB!ID) + ""
        Dbstudent.Execute sqlModify, 64
         If MsgBox("保存對當前記錄的修改?", vbQuestion + vbYesNo) = vbNo Then
            Exit Sub
        End If
        cmdSave.Caption = "保存"
        cmdSave.Enabled = False
        BookMarkSave = BookMark
        UpdateRecord
        For I = 1 To BookMarkSave - 1
          recForSHSJB.MoveNext
          FillIn
        Next I
        BookMark = BookMarkSave
        Modify = False
        cmdModify.Enabled = True
        cmdNext.Enabled = True
        cmdPrevious.Enabled = True
    End If
End If
End Sub

Private Sub txtJL_KeyPress(KeyAscii As Integer)
On Error Resume Next
Dim sqlModify As String
Dim BookMarkSave As Integer
Dim I As Integer
If KeyAscii = 13 Then
    If Modify Then
        sqlModify = "update shsjb set jl='" + Trim(txtJL) + "' where id=" + Trim(recForSHSJB!ID) + ""
        Dbstudent.Execute sqlModify, 64
         If MsgBox("保存對當前記錄的修改?", vbQuestion + vbYesNo) = vbNo Then
            Exit Sub
        End If
        cmdSave.Caption = "保存"
        cmdSave.Enabled = False
        BookMarkSave = BookMark
        UpdateRecord
        For I = 1 To BookMarkSave - 1
          recForSHSJB.MoveNext
          FillIn
        Next I
        BookMark = BookMarkSave
        Modify = False
        cmdModify.Enabled = True
        cmdNext.Enabled = True
        cmdPrevious.Enabled = True
    End If
End If
End Sub

Private Sub txtDH_KeyPress(KeyAscii As Integer)
On Error Resume Next
Dim sqlModify As String
Dim BookMarkSave As Integer
Dim I As Integer
If KeyAscii = 13 Then
    If Modify Then
        sqlModify = "update shsjb set dh='" + Trim(txtDH) + "' where id=" + Trim(recForSHSJB!ID) + ""
        Dbstudent.Execute sqlModify, 64
         If MsgBox("保存對當前記錄的修改?", vbQuestion + vbYesNo) = vbNo Then
            Exit Sub
        End If
        cmdSave.Caption = "保存"
        cmdSave.Enabled = False
        BookMarkSave = BookMark
        UpdateRecord
        For I = 1 To BookMarkSave - 1
          recForSHSJB.MoveNext
          FillIn
        Next I
        BookMark = BookMarkSave
        Modify = False
        cmdModify.Enabled = True
        cmdNext.Enabled = True
        cmdPrevious.Enabled = True
    End If
End If
End Sub

Private Sub txtXH_LostFocus()
On Error Resume Next
Dim sqlForNew, sqlForNew1 As String
Dim recForNew, recForNew1 As Recordset
If AddNew Then
    If XHInZBQKB(txtXH) Then
        sqlForNew1 = "select * from shsjb where xh='" + Trim(txtXH) + "'"
        Set recForNew1 = Dbstudent.OpenRecordset(sqlForNew1)
        If recForNew1.EOF And recForNew1.BOF Then
           sqlForNew = "select top 1 xm,bj,yx,dh from zbqkb where xh='" + Trim(txtXH) + "'"
           Set recForNew = Dbstudent.OpenRecordset(sqlForNew, dbOpenSnapshot)
           If Not IsNull(recForNew!XM) Then txtXM = recForNew!XM
           If Not IsNull(recForNew!BJ) Then txtBJ = recForNew!BJ
           If Not IsNull(recForNew!YX) Then txtYX = recForNew!YX
           If Not IsNull(recForNew!DH) Then txtDH = recForNew!DH
           cmdSave.Enabled = True
        Else
           MsgBox "庫中已有該同學記錄！", vbExclamation, "提示框"
            Dim s As String
             s = Trim(txtXH)
             recForSHSJB.MoveFirst
             recForSHSJB.FindFirst "xh='" + Trim(s) + "'"
             FillIn
             txtXH.SetFocus
             AddNew = False
        End If
    Else
        MsgBox "基本表中無此學號", vbInformation, "提示"
        txtXH = ""
        AddNew = False
    End If
End If
End Sub
'基本表中是否有此學號
Function XHInZBQKB(ByVal XHForDetect As String) As Boolean
On Error Resume Next
Dim sqlForXH As String
Dim recForXH As Recordset
XHInZBQKB = True
sqlForXH = "select top 1 * from zbqkb where xh='" + XHForDetect + "'"
Set recForXH = Dbstudent.OpenRecordset(sqlForXH, dbOpenSnapshot)
If recForXH.RecordCount = 0 Then
    XHInZBQKB = False
End If
End Function

Private Sub txtXM_KeyPress(KeyAscii As Integer)
On Error Resume Next
Dim sqlModify As String
Dim BookMarkSave As Integer
Dim I As Integer
If KeyAscii = 13 Then
    If Modify Then
        sqlModify = "update shsjb set xm='" + Trim(txtXM) + "' where id=" + Trim(recForSHSJB!ID) + ""
        Dbstudent.Execute sqlModify, 64
         If MsgBox("保存對當前記錄的修改?", vbQuestion + vbYesNo) = vbNo Then
            Exit Sub
        End If
        cmdSave.Caption = "保存"
        cmdSave.Enabled = False
        BookMarkSave = BookMark
        UpdateRecord
        For I = 1 To BookMarkSave - 1
          recForSHSJB.MoveNext
          FillIn
        Next I
        BookMark = BookMarkSave
        Modify = False
        cmdModify.Enabled = True
        cmdNext.Enabled = True
        cmdPrevious.Enabled = True
    End If
End If
End Sub

Private Sub txtYX_KeyPress(KeyAscii As Integer)
On Error Resume Next
Dim sqlModify As String
Dim BookMarkSave As Integer
Dim I As Integer
If KeyAscii = 13 Then
    If Modify Then
        sqlModify = "update shsjb set yx='" + Trim(txtYX) + "' where id=" + Trim(recForSHSJB!ID) + ""
        Dbstudent.Execute sqlModify, 64
         If MsgBox("保存對當前記錄的修改?", vbQuestion + vbYesNo) = vbNo Then
            Exit Sub
        End If
        cmdSave.Caption = "保存"
        cmdSave.Enabled = False
        BookMarkSave = BookMark
        UpdateRecord
        For I = 1 To BookMarkSave - 1
          recForSHSJB.MoveNext
          FillIn
        Next I
        BookMark = BookMarkSave
        Modify = False
        cmdModify.Enabled = True
        cmdNext.Enabled = True
        cmdPrevious.Enabled = True
    End If
End If
End Sub