changeevent.frm

感觉还可以了 大家看看 指点下 有什么不足的地方,大家多多指教啊

VERSION 5.00
Object = "{86CF1D34-0C5F-11D2-A9FC-0000F8754DA1}#2.0#0"; "MSCOMCT2.OCX"
Begin VB.Form ChangeEvent 
   Caption         =   "定位考勤记录"
   ClientHeight    =   4500
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   3780
   LinkTopic       =   "Form1"
   ScaleHeight     =   4500
   ScaleWidth      =   3780
   StartUpPosition =   3  'Windows Default
   Begin VB.Frame Frame1 
      Caption         =   "定位预修改的考勤记录"
      Height          =   4215
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   3495
      Begin VB.CommandButton Command2 
         Cancel          =   -1  'True
         Caption         =   "取消修改"
         Height          =   495
         Left            =   240
         TabIndex        =   7
         Top             =   3480
         Width           =   3015
      End
      Begin VB.CommandButton Command1 
         Caption         =   "定位考勤记录"
         Default         =   -1  'True
         Height          =   495
         Left            =   240
         TabIndex        =   6
         Top             =   2880
         Width           =   3015
      End
      Begin VB.ComboBox TypeCombo 
         Height          =   300
         Left            =   240
         TabIndex        =   5
         Top             =   2280
         Width           =   3015
      End
      Begin MSComCtl2.DTPicker DTPicker1 
         Height          =   375
         Left            =   240
         TabIndex        =   3
         Top             =   1440
         Width           =   3015
         _ExtentX        =   5318
         _ExtentY        =   661
         _Version        =   393216
         Format          =   662831105
         CurrentDate     =   38011
      End
      Begin VB.TextBox User 
         Appearance      =   0  'Flat
         Height          =   270
         Left            =   240
         TabIndex        =   1
         Top             =   600
         Width           =   3015
      End
      Begin VB.Label Label4 
         Caption         =   "考勤类别"
         Height          =   255
         Left            =   240
         TabIndex        =   8
         Top             =   2040
         Width           =   1455
      End
      Begin VB.Label Label3 
         Caption         =   "考勤记录时间"
         Height          =   255
         Left            =   240
         TabIndex        =   4
         Top             =   1200
         Width           =   1575
      End
      Begin VB.Label Label1 
         Caption         =   "员工ID号"
         Height          =   255
         Left            =   240
         TabIndex        =   2
         Top             =   360
         Width           =   1455
      End
   End
End
Attribute VB_Name = "ChangeEvent"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
    Dim sql As String
    Dim rs As New ADODB.Recordset
    Dim i As Integer
    
    If TypeCombo.ListIndex = -1 Then        '列表框必须选定考勤类别
        MsgBox "考勤类别不能为空！", vbCritical
        TypeCombo.SetFocus
        Exit Sub
    End If
    If User.Text = "" Then      '文本框必须输入员工ID
        MsgBox "员工ID不能为空！", vbCritical
        User.SetFocus
        Exit Sub
    End If
    If DbHandle.DbConnection Then
        sql = "TBL_WORK"        '查看数据库中是否存在预想修改的数据库记录
        rs.CursorType = adOpenDynamic
        rs.LockType = adLockOptimistic
        rs.Filter = "WORK_ID='" & User.Text & "' AND WORK_DATE='" & DTPicker1.Value & "' AND WORK_TYPE=" & Str(TypeCombo.ListIndex + 1)
        rs.Open sql, DbFinance
        If DbHandle.resultcount(rs) <> 1 Then   '不存在显示错误窗体,并且关闭数据库退出
            MsgBox "错误，不存在的考勤记录！", vbExclamation
            User.SetFocus
            rs.Close
            Set rs = Nothing
            DbHandle.DbClose
            Exit Sub
        End If
        ChangeEvent2.TypeCombo.Clear        '存在考勤记录,设置修改考勤记录对话框的窗体元素属性
        For i = 0 To TypeCombo.ListCount - 1        '设置考勤类别下拉列表
            ChangeEvent2.TypeCombo.AddItem (TypeCombo.List(i))
            ChangeEvent2.TypeCombo.ItemData(ChangeEvent2.TypeCombo.NewIndex) = TypeCombo.ItemData(i)
        Next i
        ChangeEvent2.TypeCombo.ListIndex = TypeCombo.ListIndex      '设置默认值为记录中各个字段的原始值
        ChangeEvent2.User.Text = rs("WORK_ID")
        ChangeEvent2.EvtTime.Text = rs("WORK_TIME")
        ChangeEvent2.DTPicker1.Value = DTPicker1.Value
        ChangeEvent2.Cancel = True      '修改考勤记录对话框是否按确定退出
        ChangeEvent2.Show 1     '显示模式修改考勤记录对话框
        If ChangeEvent2.Cancel Then     '如果修改考勤记录对话框是按确定退出就修改当前考勤记录
            rs("WORK_ID") = ChangeEvent2.User.Text
            rs("WORK_DATE") = ChangeEvent2.DTPicker1.Value
            rs("WORK_TIME") = Val(ChangeEvent2.EvtTime.Text)
            rs("WORK_TYPE") = ChangeEvent2.TypeCombo.ItemData(ChangeEvent2.TypeCombo.ListIndex)
            rs.Update
            MsgBox "考勤记录成功修改！"
        End If
        rs.Close    '关闭数据库结果集,返回主窗体
        Unload Me
    Else        '数据库连接打开失败则退出
        MsgBox "数据库错误！", vbExclamation
        DbHandle.DbClose
        End
    End If
End Sub

Private Sub Command2_Click()
    Me.Hide     '返回主窗体
End Sub

Private Sub Form_Load()
    Dim sql As String
    Dim rs As New ADODB.Recordset
    
    Me.Left = (Screen.Width - Me.ScaleWidth) / 2        '窗体居中显示
    Me.Top = (Screen.Height - Me.ScaleHeight) / 2
    If DbHandle.DbConnection Then       '提取考勤类别表中静态记录
        sql = "TBL_TYPE"
        rs.CursorType = adOpenDynamic
        rs.LockType = adLockOptimistic
        rs.Filter = ""
        rs.Open sql, DbFinance
        
        Do While rs.EOF = False     '循环加入下拉列表
            TypeCombo.AddItem (rs("TYPE_NAME"))
            TypeCombo.ItemData(TypeCombo.NewIndex) = rs("TYPE_ID")
            rs.MoveNext
        Loop
        rs.Close        '释放结果集,关闭数据库
        Set rs = Nothing
        DbHandle.DbClose
    Else        '打开连接失败则退出
        MsgBox "数据库错误！", vbExclamation
        DbHandle.DbClose
        End
    End If
End Sub

Private Sub Form_Unload(Cancel As Integer)
    On Error Resume Next
    DbHandle.DbClose        '窗体退出关闭数据库连接
End Sub