📄 frmsc.frm
字号:
VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Begin VB.Form FrmSC
Caption = "选课信息"
ClientHeight = 5220
ClientLeft = 2835
ClientTop = 1890
ClientWidth = 6420
LinkTopic = "Form2"
ScaleHeight = 5220
ScaleWidth = 6420
Begin VB.ComboBox ComSeaType
Height = 300
ItemData = "FrmSC.frx":0000
Left = 360
List = "FrmSC.frx":0010
TabIndex = 21
Text = "请选择查询条件"
Top = 4560
Width = 1815
End
Begin VB.TextBox TxtSearchName
Height = 270
Left = 2160
TabIndex = 20
Text = "请输入查询关键字"
Top = 4560
Width = 1695
End
Begin VB.CommandButton CmdFirst
Caption = "初一条"
Height = 495
Left = 240
TabIndex = 16
Top = 3240
Width = 855
End
Begin VB.CommandButton CmdPrevious
Caption = "前一条"
Height = 495
Left = 1200
TabIndex = 15
Top = 3240
Width = 855
End
Begin VB.CommandButton CmdNext
Caption = "后一条"
Height = 495
Left = 2160
TabIndex = 14
Top = 3240
Width = 855
End
Begin VB.CommandButton CmdLast
Caption = "末一条"
Height = 495
Left = 3120
TabIndex = 13
Top = 3240
Width = 855
End
Begin VB.CommandButton CmdAdd
Caption = "增 加"
Height = 495
Left = 4320
TabIndex = 12
Top = 3240
Width = 975
End
Begin VB.CommandButton CmdDelete
Caption = "删 除"
Height = 495
Left = 5400
TabIndex = 11
Top = 3240
Width = 975
End
Begin VB.CommandButton CmdUpdate
Caption = "更 新"
Height = 495
Left = 4320
TabIndex = 10
Top = 3840
Width = 975
End
Begin VB.CommandButton CmdCancel
Caption = "取 消"
Height = 495
Left = 5400
TabIndex = 9
Top = 3840
Width = 975
End
Begin VB.CommandButton CmdSearch
Caption = "查找"
Height = 375
Left = 3840
TabIndex = 8
Top = 4560
Width = 735
End
Begin VB.CommandButton CmdQuit
Caption = "退 出"
Height = 495
Left = 5160
Style = 1 'Graphical
TabIndex = 7
Top = 4560
Width = 1215
End
Begin VB.Frame FraSC
Caption = "学生修课情况"
Height = 2775
Left = 480
TabIndex = 0
Top = 240
Width = 5535
Begin VB.TextBox TxtCoursetype
DataField = "coursetype"
DataSource = "AdodcSC"
Height = 375
Left = 2280
TabIndex = 19
Top = 2160
Width = 2295
End
Begin VB.TextBox TxtSno
DataField = "sno"
DataSource = "AdodcSC"
Height = 375
Left = 2280
TabIndex = 3
Top = 360
Width = 2295
End
Begin VB.TextBox TxtCno
DataField = "cno"
DataSource = "AdodcSC"
Height = 375
Left = 2280
TabIndex = 2
Top = 960
Width = 2295
End
Begin VB.TextBox TxtGrade
DataField = "grade"
DataSource = "AdodcSC"
Height = 375
Left = 2280
TabIndex = 1
Top = 1560
Width = 2295
End
Begin VB.Label LabCourseType
Caption = "修课类别："
Height = 375
Left = 480
TabIndex = 18
Top = 2280
Width = 1335
End
Begin VB.Label LabSno
Caption = "学号："
Height = 375
Left = 840
TabIndex = 6
Top = 480
Width = 1335
End
Begin VB.Label LabCno
Caption = "课程号："
Height = 375
Left = 720
TabIndex = 5
Top = 1080
Width = 1335
End
Begin VB.Label LabGrade
Caption = "成绩："
Height = 375
Left = 840
TabIndex = 4
Top = 1680
Width = 1335
End
End
Begin MSAdodcLib.Adodc AdodcSC
Height = 330
Left = 1680
Top = 3960
Visible = 0 'False
Width = 1695
_ExtentX = 2990
_ExtentY = 582
ConnectMode = 16
CursorLocation = 3
IsolationLevel = -1
ConnectionTimeout= 15
CommandTimeout = 30
CursorType = 3
LockType = 3
CommandType = 2
CursorOptions = 0
CacheSize = 50
MaxRecords = 0
BOFAction = 0
EOFAction = 0
ConnectStringType= 1
Appearance = 1
BackColor = -2147483643
ForeColor = -2147483640
Orientation = 0
Enabled = -1
Connect = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\0113607\学生选课系统\数据库文件\student.mdb;Persist Security Info=False"
OLEDBString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:\0113607\学生选课系统\数据库文件\student.mdb;Persist Security Info=False"
OLEDBFile = ""
DataSourceName = ""
OtherAttributes = ""
UserName = ""
Password = ""
RecordSource = "sc"
Caption = "AdodcSC"
BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851}
Name = "MS Sans Serif"
Size = 13.5
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
_Version = 393216
End
Begin VB.Label LabSearch
Caption = "查询条件："
Height = 255
Left = 360
TabIndex = 17
Top = 3960
Width = 1215
End
End
Attribute VB_Name = "FrmSC"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Public SearchName As String
Public SearchType As String
Private Sub ComSeaType_Click()
Dim t As String
t = ComSeaType.Text
Select Case t
Case "学号"
SearchType = "Sno"
Case "课程号"
SearchType = "cno"
Case "修课类型"
SearchType = "CourseType"
Case "成绩"
SearchType = "grade"
Case Else
MsgBox "你没有选中任何条件！", vbOKOnly + vbExclamation, "警告"
End Select
End Sub
Private Sub CmdSearch_Click()
SearchName = TxtSearchName.Text
Unload Me
FrmSCsearch.Show
End Sub
Private Sub CmdAdd_Click()
AdodcSC.Recordset.AddNew
CmdDelete.Enabled = False
CmdAdd.Enabled = False
CmdUpdate.Enabled = True
CmdCancel.Enabled = True
Call EnableButton(False)
TxtSno.SetFocus
End Sub
Private Sub CmdCancel_Click()
On Error GoTo Err
AdodcSC.Recordset.CancelUpdate
CmdAdd.Enabled = True
CmdDelete.Enabled = True
CmdUpdate.Enabled = False
CmdCancel.Enabled = False
Call EnableButton(True)
Exit Sub
Err:
Exit Sub
End Sub
Private Sub CmdDelete_Click()
Dim r As Integer
r = MsgBox("确定删除当前记录?", vbExclamation + vbYesNo)
If r = vbYes Then
With AdodcSC.Recordset
.Delete
.MoveNext
If .EOF Then .MoveLast
End With
End If
End Sub
Private Sub CmdFirst_Click()
AdodcSC.Recordset.MoveFirst
End Sub
Private Sub CmdPrevious_Click()
With AdodcSC.Recordset
.MovePrevious
If .BOF Then .MoveFirst
End With
End Sub
Private Sub CmdNext_Click()
With AdodcSC.Recordset
.MoveNext
If .EOF Then .MoveLast
End With
End Sub
Private Sub CmdLast_Click()
AdodcSC.Recordset.MoveLast
End Sub
Private Sub CmdQuit_Click()
Unload Me
End Sub
Private Sub CmdUpdate_Click()
On Error GoTo Err
If TxtSno.Text = "" Then
MsgBox "学号不能为空,请重新输入", vbExclamation, "信息"
TxtSno.SetFocus
Else
If TxtCno.Text = "" Then
MsgBox "课程号不能为空,请重新输入", vbExclamation, "信息"
TxtCno.SetFocus
Else
With AdodcSC
.Recordset("sno") = Trim(TxtSno.Text)
.Recordset("cno") = Trim(TxtCno.Text)
.Recordset("coursetype") = Trim(TxtCoursetype.Text)
.Recordset("grade") = CByte(Trim(TxtGrade.Text))
End With
MsgBox "" + TxtSno.Text + " " + TxtCno.Text + " " + TxtGrade.Text + " " + TxtCoursetype.Text + " ", vbExclamation, "信息"
AdodcSC.Recordset.Update
CmdAdd.Enabled = True
CmdDelete.Enabled = True
CmdUpdate.Enabled = False
CmdCancel.Enabled = False
Call EnableButton(True)
End If
Exit Sub
Err:
MsgBox "输入有误，请注意表的完整性约束,请重新输入", vbExclamation, "信息"
AdodcSC.Recordset.CancelUpdate
End If
Exit Sub
End Sub
Private Sub EnableButton(flag As Boolean)
CmdFirst.Enabled = flag
CmdPrevious.Enabled = flag
CmdNext.Enabled = flag
CmdLast.Enabled = flag
End Sub
Private Function ConvertNull(para_Value As Variant) As Variant
If IsNull(para_Value) = True Then
ConvertNull = ""
Else
ConvertNull = para_Value
End If
End Function
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -