修改班级信息.frm

学生管理系统

VERSION 5.00
Begin VB.Form 班级信息 
   Caption         =   "Form1"
   ClientHeight    =   4530
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   5370
   LinkTopic       =   "Form1"
   ScaleHeight     =   4530
   ScaleWidth      =   5370
   StartUpPosition =   3  '窗口缺省
   Begin VB.ComboBox Combo2 
      Height          =   300
      Left            =   2280
      TabIndex        =   9
      Text            =   " "
      Top             =   2160
      Width           =   1575
   End
   Begin VB.ComboBox Combo1 
      Height          =   300
      Left            =   2280
      TabIndex        =   8
      Text            =   " "
      Top             =   240
      Width           =   1455
   End
   Begin VB.Frame Frame1 
      Caption         =   "Frame1"
      Height          =   1455
      Left            =   0
      TabIndex        =   4
      Top             =   3000
      Width           =   5295
      Begin VB.CommandButton Command4 
         Caption         =   "查询"
         Height          =   615
         Left            =   3720
         TabIndex        =   10
         Top             =   360
         Width           =   1215
      End
      Begin VB.CommandButton Command3 
         Caption         =   "退出"
         Height          =   615
         Left            =   2400
         TabIndex        =   7
         Top             =   360
         Width           =   1095
      End
      Begin VB.CommandButton Command2 
         Caption         =   "删除"
         Height          =   735
         Left            =   1200
         TabIndex        =   6
         Top             =   240
         Width           =   1095
      End
      Begin VB.CommandButton Command1 
         Caption         =   "修改"
         Height          =   735
         Left            =   120
         TabIndex        =   5
         Top             =   240
         Width           =   975
      End
   End
   Begin VB.TextBox Text1 
      Height          =   735
      Left            =   2160
      TabIndex        =   3
      Text            =   " "
      Top             =   960
      Width           =   1815
   End
   Begin VB.Label Label3 
      Caption         =   "班级名称"
      Height          =   735
      Left            =   120
      TabIndex        =   2
      Top             =   1920
      Width           =   1815
   End
   Begin VB.Label Label2 
      Caption         =   "系部编号"
      Height          =   735
      Left            =   120
      TabIndex        =   1
      Top             =   960
      Width           =   1815
   End
   Begin VB.Label Label1 
      Caption         =   "班级编号"
      Height          =   735
      Left            =   240
      TabIndex        =   0
      Top             =   120
      Width           =   1815
   End
End
Attribute VB_Name = "班级信息"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim rs31 As New ADODB.Recordset
Private Sub Combo1_Click()
Dim rs15 As New ADODB.Recordset
rs15.Open "select * from 班级表 where 班级编号='" + Trim(Combo1.Text) + "'", cnn, 3, 3
End Sub
Private Sub Combo2_Change()
Dim rs105 As New ADODB.Recordset
rs105.Open "select * from 班级表 where 班级名称='" + Trim(Combo2.Text) + "'", cnn, 3, 3
End Sub
Private Sub Command1_Click()
If rs31.State <> 0 Then rs31.Close
rs31.Open "select * from 班级表 where 班级编号='" + Trim(Combo1.Text) + "'", cnn, 3, 3
rs31.Find "班级编号 like '" & (Combo1.Text) & "'"
If rs31.EOF Then
   MsgBox "没有此记录！"
   Text1 = ""
  Else
rs31("班级名称") = Trim(Combo2.Text)
rs31("班级编号") = Trim(Combo1.Text)
rs31.Update
rs31.Requery
MsgBox "更新成功！"
Combo1.Text = ""
Combo2.Text = ""
Text1 = ""
Combo1.SetFocus
 End If
End Sub
Private Sub Command2_Click()
If rs31.State <> 0 Then rs31.Close
rs31.Open "select * from 班级表 where 班级编号='" + Trim(Combo1.Text) + "'", cnn, 3, 3
rs31.Find "班级编号 like '" & (Combo1.Text) & "'"
If rs31.EOF Then
   MsgBox ""
Else
rs31.Delete
rs31.Update
MsgBox "删除信息成功！"
Text1 = ""
Combo1.Text = ""
Combo2.Text = ""
End If
End Sub
Private Sub Command3_Click()
Me.Hide
End Sub

Private Sub Command4_Click()
If rs31.State <> 0 Then rs31.Close
rs31.Open "select* from 班级表", cnn, 3, 1
rs31.Find "班级编号 like '" & Combo1.Text & "'"
If rs31.EOF Then
MsgBox "没有此记录！"
Combo1.Text = ""
Exit Sub
Else
Combo2.Text = rs31("班级名称")
Combo1.Text = rs31("班级编号")
Text1 = rs31("系部编号")
End If
End Sub

Private Sub Form_Load()
Dim rs15 As New Recordset
rs15.Open "select * from 班级表", cnn, 3, 1
Do While Not rs15.EOF
Combo1.AddItem rs15("班级编号")
Combo2.AddItem rs15("班级名称")
rs15.MoveNext
Loop
rs15.Close

End Sub