form14.frm

学生管理系统：包括查询

VERSION 5.00
Begin VB.Form Form10 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "课程信息修改"
   ClientHeight    =   4995
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   6180
   LinkTopic       =   "Form10"
   MaxButton       =   0   'False
   MDIChild        =   -1  'True
   MinButton       =   0   'False
   ScaleHeight     =   4995
   ScaleWidth      =   6180
   Begin VB.CommandButton Command4 
      Caption         =   "退出"
      Height          =   855
      Left            =   4080
      TabIndex        =   9
      Top             =   4080
      Width           =   1095
   End
   Begin VB.CommandButton Command3 
      Caption         =   "保存"
      Height          =   855
      Left            =   1800
      TabIndex        =   8
      Top             =   4080
      Width           =   1215
   End
   Begin VB.CommandButton Command2 
      Caption         =   "修改"
      Height          =   855
      Left            =   240
      TabIndex        =   7
      Top             =   4080
      Width           =   1095
   End
   Begin VB.TextBox Text3 
      Height          =   855
      Left            =   1200
      TabIndex        =   6
      Top             =   3000
      Width           =   1815
   End
   Begin VB.TextBox Text2 
      Height          =   735
      Left            =   1200
      TabIndex        =   5
      Top             =   2040
      Width           =   1815
   End
   Begin VB.Frame Frame1 
      BackColor       =   &H8000000D&
      Caption         =   "请输入要修改的课程名"
      Height          =   1695
      Left            =   240
      TabIndex        =   0
      Top             =   120
      Width           =   5295
      Begin VB.CommandButton Command1 
         Caption         =   "确定"
         Height          =   615
         Left            =   3960
         TabIndex        =   2
         Top             =   960
         Width           =   975
      End
      Begin VB.TextBox Text1 
         Height          =   735
         Left            =   240
         TabIndex        =   1
         Top             =   480
         Width           =   2655
      End
   End
   Begin VB.Label Label2 
      BackStyle       =   0  'Transparent
      Caption         =   "课程名:"
      Height          =   975
      Left            =   360
      TabIndex        =   4
      Top             =   3120
      Width           =   1455
   End
   Begin VB.Label Label1 
      BackStyle       =   0  'Transparent
      Caption         =   "课程号:"
      Height          =   975
      Left            =   360
      TabIndex        =   3
      Top             =   2280
      Width           =   1335
   End
   Begin VB.Image Image1 
      Height          =   5175
      Left            =   -240
      Picture         =   "Form14.frx":0000
      Stretch         =   -1  'True
      Top             =   -120
      Width           =   6495
   End
End
Attribute VB_Name = "Form10"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim conn As New ADODB.Connection
Dim mrc As New ADODB.Recordset
Private Sub Command1_Click()
Dim txtsql As String
txtsql = "select * from 课程表 where  "
txtsql = txtsql & "课程=" & "'" & Trim(Text1.Text) & "'"
Set mrc = executesql(txtsql)
   Text2.Text = mrc.Fields(0)
   Text3.Text = mrc.Fields(1)
If Text1.Text = "" Then
MsgBox "请你输入课程名", , " 信息提示"
End If
End Sub
Public Function executesql(ByVal sql As String) As ADODB.Recordset
Dim cnn As ADODB.Connection
Dim rst As ADODB.Recordset
Set cnn = New ADODB.Connection
Dim stokens() As String
stokens = Split(sql)
cnn.Open "Provider = Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\student.mdb"
If InStr(" INSERT,DELETE,UPDATE", UCase$(stokens(0))) Then
cnn.Execute sql
Else
Set rst = New ADODB.Recordset
rst.Open Trim$(sql), cnn, adOpenKeyset, adLockOptimistic
Set executesql = rst
End If

End Function

Private Sub Command2_Click()
Text2.Text = ""
   Text3.Text = ""
   
End Sub

Private Sub Command3_Click()
mrc.Fields(0).Value = Text2.Text
mrc.Fields(1).Value = Text3.Text
mrc.Update
End Sub

Private Sub Command4_Click()
Me.Hide
End Sub

Private Sub Form_Load()
connstr = "Provider = Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\student.mdb"
conn.Open connstr
End Sub