demoform.frm

档案管理系统,使用vb6+access数据库开发

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Begin VB.Form DemoForm 
   Caption         =   "DemoForm"
   ClientHeight    =   3456
   ClientLeft      =   48
   ClientTop       =   336
   ClientWidth     =   5448
   BeginProperty Font 
      Name            =   "宋体"
      Size            =   10.8
      Charset         =   134
      Weight          =   400
      Underline       =   0   'False
      Italic          =   0   'False
      Strikethrough   =   0   'False
   EndProperty
   LinkTopic       =   "Form1"
   ScaleHeight     =   3456
   ScaleWidth      =   5448
   StartUpPosition =   2  '屏幕中心
   Begin VB.TextBox Text1 
      Height          =   324
      Left            =   1800
      TabIndex        =   9
      Top             =   240
      Width           =   2772
   End
   Begin VB.TextBox Text2 
      Height          =   324
      Left            =   1800
      TabIndex        =   8
      Top             =   672
      Width           =   2772
   End
   Begin VB.CommandButton Command1 
      Caption         =   "&Next"
      Height          =   372
      Left            =   360
      TabIndex        =   7
      Top             =   1872
      Width           =   1092
   End
   Begin VB.CommandButton Command2 
      Caption         =   "&Previous"
      Height          =   372
      Left            =   1560
      TabIndex        =   6
      Top             =   1872
      Width           =   1092
   End
   Begin VB.CommandButton Command3 
      Caption         =   "&First"
      Height          =   372
      Left            =   2880
      TabIndex        =   5
      Top             =   1872
      Width           =   1092
   End
   Begin VB.CommandButton Command4 
      Caption         =   "&Last"
      Height          =   372
      Left            =   4080
      TabIndex        =   4
      Top             =   1872
      Width           =   1092
   End
   Begin VB.CommandButton Command5 
      Caption         =   "&Modify"
      Height          =   372
      Left            =   360
      TabIndex        =   3
      Top             =   2280
      Width           =   1452
   End
   Begin VB.CommandButton Command6 
      Caption         =   "&Update"
      Height          =   372
      Left            =   2040
      TabIndex        =   2
      Top             =   2280
      Width           =   1452
   End
   Begin VB.CommandButton Command7 
      Caption         =   "&Exit"
      Height          =   372
      Left            =   3720
      TabIndex        =   1
      Top             =   2280
      Width           =   1452
   End
   Begin VB.TextBox Text3 
      Height          =   372
      Left            =   1800
      TabIndex        =   0
      Top             =   1152
      Width           =   2772
   End
   Begin MSAdodcLib.Adodc Test 
      Height          =   312
      Left            =   1320
      Top             =   2832
      Visible         =   0   'False
      Width           =   2532
      _ExtentX        =   4466
      _ExtentY        =   550
      ConnectMode     =   3
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   2
      LockType        =   3
      CommandType     =   2
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   3
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   "DSN=PmData"
      OLEDBString     =   ""
      OLEDBFile       =   ""
      DataSourceName  =   "PmData"
      OtherAttributes =   ""
      UserName        =   "Admin"
      Password        =   ""
      RecordSource    =   "DataG"
      Caption         =   "Test Ado Data"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   10.8
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      Caption         =   "档号"
      Height          =   216
      Left            =   720
      TabIndex        =   12
      Top             =   312
      Width           =   432
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      Caption         =   "文件编号"
      Height          =   216
      Left            =   720
      TabIndex        =   11
      Top             =   792
      Width           =   864
   End
   Begin VB.Label Label3 
      AutoSize        =   -1  'True
      Caption         =   "FileType"
      Height          =   216
      Left            =   720
      TabIndex        =   10
      Top             =   1272
      Width           =   864
   End
End
Attribute VB_Name = "DemoForm"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim adoCon As ADODB.Connection
Dim adoRst As ADODB.Recordset

Private Sub Command1_Click()
With adoRst
  If Not .EOF Then
     .MoveNext
     If Not .EOF Then
        Call LoadData
     Else
        .MoveLast
     End If
  End If
End With
End Sub

Private Sub Command2_Click()
With adoRst
  If Not .BOF Then
     .MovePrevious
     If Not .BOF Then
        Call LoadData
     Else
        .MoveFirst
     End If
  End If
End With
End Sub

Private Sub Command3_Click()
adoRst.MoveFirst
Call LoadData
End Sub

Private Sub Command4_Click()
adoRst.MoveLast
Call LoadData
End Sub

Private Sub Command5_Click()
Call SetEnable(True)
Text1.SetFocus
End Sub

Private Sub Command6_Click()
adoRst.Fields("档号") = ConvertNull(Text1.Text)
adoRst.Fields("文件编号") = ConvertNull(Text2.Text)
adoRst.Fields("FileType") = ConvertNull(Text3.Text)
adoRst.Update
End Sub

Private Sub Command7_Click()
adoRst.Close
TestForm.Hide
Unload TestForm
End
End Sub

Private Sub Form_Load()
  'Dim adoCon As ADODB.Connection
  
  'Text1.Enabled = False
  'Text2.Enabled = False
  'Text3.Enabled = False
  
  Set adoCon = New ADODB.Connection
  adoCon.Open "PmData", "Admin"
  
  Set adoRst = New ADODB.Recordset
  Set adoRst.ActiveConnection = adoCon
  adoRst.CursorType = adOpenDynamic
  adoRst.LockType = adLockOptimistic
  
  adoRst.Open "Select * From DataG Order By 档号"
  Call LoadData
End Sub

Private Sub LoadData()
Call SetEnable(False)
Text1.Text = adoRst!档号
Text2.Text = adoRst!文件编号
Text3.Text = adoRst!FileType
End Sub

Private Sub SetEnable(T_F As Boolean)
Text1.Enabled = T_F
Text2.Enabled = T_F
Text3.Enabled = T_F
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