📄 from1.frm
字号:
VERSION 5.00
Begin VB.Form from1
BorderStyle = 3 'Fixed Dialog
Caption = "学生信息查询系统"
ClientHeight = 3945
ClientLeft = 3885
ClientTop = 4275
ClientWidth = 5745
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 3945
ScaleWidth = 5745
ShowInTaskbar = 0 'False
Begin VB.Frame Frame3
Caption = "数据操作"
Height = 855
Left = 120
TabIndex = 10
Top = 3000
Width = 5535
Begin VB.CommandButton CmdExit
Caption = "Exit"
Height = 375
Left = 4440
TabIndex = 19
Top = 240
Width = 735
End
Begin VB.CommandButton CmdSave
Caption = "Save"
Height = 375
Left = 3360
TabIndex = 18
Top = 240
Width = 735
End
Begin VB.CommandButton CmdDelete
Caption = "Delete"
Height = 375
Left = 2280
TabIndex = 17
Top = 240
Width = 735
End
Begin VB.CommandButton CmdCancel
Caption = "Cancel"
Height = 375
Left = 1200
TabIndex = 16
Top = 240
Width = 735
End
Begin VB.CommandButton CmdAdd
Caption = "Add"
Height = 375
Left = 120
TabIndex = 15
Top = 240
Width = 735
End
End
Begin VB.Frame Frame2
Caption = "数据浏览"
Height = 735
Left = 120
TabIndex = 9
Top = 2040
Width = 5535
Begin VB.CommandButton CmdLast
Caption = ">>"
Height = 375
Left = 4320
TabIndex = 14
Top = 240
Width = 855
End
Begin VB.CommandButton CmdNext
Caption = ">"
Height = 375
Left = 3000
TabIndex = 13
Top = 240
Width = 855
End
Begin VB.CommandButton CmdPrevious
Caption = "<"
Height = 375
Left = 1560
TabIndex = 12
Top = 240
Width = 855
End
Begin VB.CommandButton CmdFirst
Caption = "<<"
Height = 375
Left = 240
TabIndex = 11
Top = 240
Width = 855
End
End
Begin VB.TextBox txtAdd
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 960
TabIndex = 6
Top = 1440
Width = 2055
End
Begin VB.TextBox txtName
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 960
TabIndex = 5
Top = 840
Width = 1215
End
Begin VB.TextBox txtID
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 960
TabIndex = 4
Top = 240
Width = 975
End
Begin VB.Frame Frame1
Caption = "数据查询"
Height = 1695
Left = 3120
TabIndex = 3
Top = 120
Width = 2535
Begin VB.CommandButton CmdFind
Caption = "Find"
Height = 375
Left = 720
TabIndex = 8
Top = 1080
Width = 1095
End
Begin VB.TextBox txtFind
BeginProperty Font
Name = "宋体"
Size = 12
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 360
TabIndex = 7
Top = 480
Width = 1815
End
End
Begin VB.Label Label3
Caption = "地 址"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 120
TabIndex = 2
Top = 1440
Width = 735
End
Begin VB.Label Label2
Caption = "姓 名"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 120
TabIndex = 1
Top = 840
Width = 855
End
Begin VB.Label Label1
Caption = "学 号"
BeginProperty Font
Name = "宋体"
Size = 14.25
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 120
TabIndex = 0
Top = 240
Width = 735
End
End
Attribute VB_Name = "from1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim cnn As ADODB.Connection
Dim rs As ADODB.Recordset
'取消
Private Sub CmdCancel_Click()
rs.CancelUpdate
Display
CmdCancel.Enabled = True
CmdDelete.Enabled = True
CmdFind.Enabled = True
CmdSave.Enabled = True
CmdFirst.Enabled = True
CmdLast.Enabled = True
CmdNext.Enabled = True
CmdPrevious.Enabled = True
End Sub
'删除当前记录
Private Sub CmdDelete_Click()
Dim i As String
i = MsgBox("你确定要删除此记录吗？", vbYesNo + vbInformation, "删除记录")
If i = vbYes Then
rs.Delete
rs.MovePrevious
If rs.BOF Then rs.MoveFirst
Display
MsgBox "已删除该条记录", 0, "提示"
End If
End Sub
'退出
Private Sub CmdExit_Click()
Unload Me
End Sub
'按学号查询
Private Sub CmdFind_Click()
Dim cnn2 As ADODB.Connection
Dim rs2 As ADODB.Recordset
Dim s As String
Set cnn2 = New ADODB.Connection
s = "select * from student where ID='" & txtFind.Text & "'"
cnn2.ConnectionString = "Provider=Microsoft.Jet.OLEDB.3.51;" & "Data Source=" & App.Path & "\studentdata.mdb"
cnn2.Open
Set rs2 = New ADODB.Recordset
rs2.Open s, cnn2, adOpenDynamic, adLockOptimistic
If rs2.BOF Or rs2.EOF Then
MsgBox "无效的ID号", 0, "提示": Exit Sub
End If
txtID = rs2!ID
txtName = rs2!Name
txtAdd = rs2!Add
End Sub
'显示第一条记录
Private Sub CmdFirst_Click()
rs.MoveFirst
Display
End Sub
'显示最后一条记录
Private Sub CmdLast_Click()
rs.MoveLast
Display
End Sub
'显示下一条记录
Private Sub CmdNext_Click()
rs.MoveNext
If rs.EOF Then
MsgBox "到最后一条记录", 0, "提示"
rs.MoveLast
End If
Display
End Sub
'显示前一条记录
Private Sub CmdPrevious_Click()
rs.MovePrevious
If rs.BOF Then
MsgBox "到第一条记录", 0, "提示"
rs.MoveFirst
End If
Display
End Sub
'加载窗体
Private Sub Form_Load()
Set cnn = New ADODB.Connection
Set rs = New ADODB.Recordset
cnn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.3.51;" & "Data Source=" & App.Path & "\studentdata.mdb"
cnn.Open
rs.Open "student", cnn, adOpenDynamic, adLockOptimistic
Display
End Sub
'显示记录
Private Sub Display()
txtID = rs!ID
txtName = rs!Name
txtAdd = rs!Add
End Sub
'卸载窗体
Private Sub Form_Unload(Cancel As Integer)
cnn.Close
End Sub
'添加记录
Private Sub CmdAdd_Click()
rs.AddNew
txtID = ""
txtName = ""
txtAdd = ""
txtID.SetFocus
CmdCancel.Enabled = True
CmdDelete.Enabled = False
CmdFind.Enabled = False
CmdSave.Enabled = True
CmdFirst.Enabled = False
CmdLast.Enabled = False
CmdNext.Enabled = False
CmdPrevious.Enabled = False
End Sub
'保存记录
Private Sub CmdSave_Click()
rs!ID = txtID
rs!Name = txtName
rs!Add = txtAdd
rs.Update
CmdCancel.Enabled = True
CmdDelete.Enabled = True
CmdFind.Enabled = True
CmdSave.Enabled = True
CmdFirst.Enabled = True
CmdLast.Enabled = True
CmdNext.Enabled = True
CmdPrevious.Enabled = True
MsgBox "已保存该条记录", 0, "提示"
End Sub
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