删除用户.frm

初学vb,做的第一个系统.一个星期内看vb并做完这个系统的.

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Begin VB.Form moveuser 
   BorderStyle     =   1  'Fixed Single
   Caption         =   "删除用户"
   ClientHeight    =   2520
   ClientLeft      =   5535
   ClientTop       =   4650
   ClientWidth     =   3885
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   ScaleHeight     =   2520
   ScaleWidth      =   3885
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   330
      Left            =   480
      Top             =   2400
      Visible         =   0   'False
      Width           =   1200
      _ExtentX        =   2117
      _ExtentY        =   582
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   8
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   "Provider=MSDASQL.1;Persist Security Info=False;User ID=sa;Data Source=stu_manage"
      OLEDBString     =   "Provider=MSDASQL.1;Persist Security Info=False;User ID=sa;Data Source=stu_manage"
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   "sa"
      Password        =   "manager"
      RecordSource    =   ""
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.CommandButton Command2 
      Caption         =   "返回"
      Height          =   375
      Left            =   1080
      TabIndex        =   3
      Top             =   1920
      Width           =   855
   End
   Begin VB.CommandButton Command1 
      Caption         =   "删 除"
      Height          =   375
      Left            =   2280
      TabIndex        =   2
      Top             =   1920
      Width           =   855
   End
   Begin VB.ComboBox Combo1 
      Height          =   300
      Left            =   1080
      Style           =   2  'Dropdown List
      TabIndex        =   1
      Top             =   960
      Width           =   1695
   End
   Begin VB.Label Label3 
      Caption         =   "Label3"
      Height          =   255
      Left            =   120
      TabIndex        =   5
      Top             =   240
      Width           =   2775
   End
   Begin VB.Label Label2 
      Height          =   375
      Left            =   600
      TabIndex        =   4
      Top             =   1440
      Width           =   3015
   End
   Begin VB.Label Label1 
      Caption         =   "请选择您要删除的用户名"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   255
      Left            =   720
      TabIndex        =   0
      Top             =   600
      Width           =   2775
   End
End
Attribute VB_Name = "moveuser"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'定义全局变量
Option Explicit

    Public rs As New ADODB.Recordset
    Public adoconn As New ADODB.Connection 'Connection 对象代表了打开与数据源的连接。

    Public deluser As String

'显示管理员选择的用户名
Private Sub Combo1_click()
    deluser = Combo1.Text
    Label2.Caption = "您选择的用户名是：" & deluser
End Sub
'删除用户
Private Sub Command1_Click()
    
    If Len(deluser) = 0 Then
        MsgBox "请先选择你要删除的用户名！"
        Combo1.SetFocus
        Exit Sub
    End If
    
    '确认对话框：有“是”与“否”两种选择
    Dim r As Integer
    r = MsgBox("您确认要删除该用户吗？", 4 + 32 + 0, "删除用户")
    '选择是
    If r = 6 Then
        rs.Open "delete from admin where id='" & deluser & "'", adoconn
        deluser = ""
        Label2.Caption = ""
        MsgBox "删除用户成功！"
        Call combo
        Combo1.SetFocus
    '选择否
    ElseIf r = 7 Then
        deluser = ""
        Label2.Caption = ""
        Call combo
        Combo1.Text = ""
        Exit Sub
    End If


End Sub
'返回用户管理界面
Private Sub Command2_Click()
    adoconn.Close
    Unload Me
    manage.Show
End Sub
'打开窗体时，打开数据库
Private Sub Form_Load()

    adoconn.ConnectionString = Adodc1.ConnectionString 'Adodc1为窗体中的ADO控件，并已成功连接数据库
    adoconn.Open
    Set rs = New ADODB.Recordset
    rs.CursorLocation = adUseClient
    rs.CursorType = adOpenStatic
    rs.LockType = adLockBatchOptimistic
    
    Call combo
End Sub
'给组合框中添加用户名
Private Sub combo()
    Combo1.Clear
    rs.Open "select * from admin", adoconn
    Label3.Caption = "数据库中共有" & rs.RecordCount & "个用户"
    Dim i As Integer
    If rs.RecordCount = 0 Then
        Label3.Caption = "数据库中没有用户信息！"
    Else
        rs.MoveFirst
            For i = 0 To rs.RecordCount - 1
                Combo1.AddItem rs.Fields("id")
                rs.MoveNext
            Next i
    End If
    rs.Close
End Sub