form1.frm

所有的数据管理都在类模块中进行,在窗体中不直接对结果集和字段操作 , 操作对象是类 属性和类方法.真正实现了数据管理逻辑和用户接口逻辑的分离

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Object = "{CDE57A40-8B86-11D0-B3C6-00A0C90AEA82}#1.0#0"; "MSDATGRD.OCX"
Begin VB.Form Form1 
   Caption         =   "Form1"
   ClientHeight    =   7935
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   10410
   LinkTopic       =   "Form1"
   ScaleHeight     =   11010
   ScaleWidth      =   15240
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton cmdmove 
      Caption         =   "movelast"
      Height          =   615
      Index           =   3
      Left            =   9120
      TabIndex        =   7
      Top             =   1200
      Width           =   1215
   End
   Begin VB.CommandButton cmdmove 
      Caption         =   "movenext"
      Height          =   615
      Index           =   2
      Left            =   7680
      TabIndex        =   6
      Top             =   1200
      Width           =   1215
   End
   Begin VB.CommandButton cmdmove 
      Caption         =   "moveprevious"
      Height          =   615
      Index           =   1
      Left            =   6240
      TabIndex        =   5
      Top             =   1200
      Width           =   1215
   End
   Begin MSDataGridLib.DataGrid DataGrid1 
      Height          =   5655
      Left            =   120
      TabIndex        =   4
      Top             =   2040
      Width           =   8775
      _ExtentX        =   15478
      _ExtentY        =   9975
      _Version        =   393216
      HeadLines       =   1
      RowHeight       =   15
      BeginProperty HeadFont {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      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
      ColumnCount     =   2
      BeginProperty Column00 
         DataField       =   ""
         Caption         =   ""
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   2052
            SubFormatType   =   0
         EndProperty
      EndProperty
      BeginProperty Column01 
         DataField       =   ""
         Caption         =   ""
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   2052
            SubFormatType   =   0
         EndProperty
      EndProperty
      SplitCount      =   1
      BeginProperty Split0 
         BeginProperty Column00 
         EndProperty
         BeginProperty Column01 
         EndProperty
      EndProperty
   End
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   495
      Left            =   0
      Top             =   360
      Width           =   8040
      _ExtentX        =   14182
      _ExtentY        =   873
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   1
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   $"Form1.frx":0000
      OLEDBString     =   $"Form1.frx":00A0
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   "select name from student where name=3"
      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.TextBox txt 
      Height          =   495
      Index           =   2
      Left            =   2880
      TabIndex        =   2
      Top             =   1320
      Width           =   1215
   End
   Begin VB.TextBox txt 
      Height          =   495
      Index           =   1
      Left            =   1440
      TabIndex        =   1
      Top             =   1320
      Width           =   1215
   End
   Begin VB.TextBox txt 
      Height          =   495
      Index           =   0
      Left            =   0
      TabIndex        =   0
      Top             =   1320
      Width           =   1215
   End
   Begin VB.CommandButton cmdmove 
      Caption         =   "movefirst"
      Height          =   615
      Index           =   0
      Left            =   4680
      TabIndex        =   3
      Top             =   1200
      Width           =   1335
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private mclsstudent As Cstudent
'(3) 定义Command 按钮的Click 事件
Private Sub cmdMove_Click(Index As Integer)
   mclsstudent.SaveRecord
  Select Case Index
    Case 0
      mclsstudent.Move FirstRecord
    Case 1
      mclsstudent.Move PreviousRecord
    Case 2
      mclsstudent.Move NextRecord
    Case 3
      mclsstudent.Move LastRecord
  End Select
    GetData
End Sub



'(1) 在Form Load () 中添加如下代码
Private Sub Form_Load()
  Set mclsstudent = New Cstudent   '创建类实例
  GetData
End Sub
'(2) 定义GetData 方法
Private Sub GetData()
  txt(0).Text = mclsstudent.Name    '读属性值到控件
  txt(1).Text = mclsstudent.Sex    '读属性值到控件
  txt(2).Text = mclsstudent.Age     '读属性值到控件
End Sub
'(4) 在From UnLoad() 中添加如下代码
Private Sub Form_Unload(Cancel As Integer)
  mclsstudent.SaveRecord
  Unload Me
End Sub