frmmlog.vb

vb。net 2003数据库设计整套源代码

Public Class FrmMLog
    Inherits System.Windows.Forms.Form

#Region " Windows 窗体设计器生成的代码 "

    Public Sub New()
        MyBase.New()

        '该调用是 Windows 窗体设计器所必需的。
        InitializeComponent()

        '在 InitializeComponent() 调用之后添加任何初始化

    End Sub

    '窗体重写处置以清理组件列表。
    Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
        If disposing Then
            If Not (components Is Nothing) Then
                components.Dispose()
            End If
        End If
        MyBase.Dispose(disposing)
    End Sub

    'Windows 窗体设计器所必需的
    Private components As System.ComponentModel.IContainer

    '注意：以下过程是 Windows 窗体设计器所必需的
    '可以使用 Windows 窗体设计器修改此过程。
    '不要使用代码编辑器修改它。
    Friend WithEvents ListView1 As System.Windows.Forms.ListView
    Friend WithEvents ColumnHeader1 As System.Windows.Forms.ColumnHeader
    Friend WithEvents ColumnHeader2 As System.Windows.Forms.ColumnHeader
    Friend WithEvents ColumnHeader3 As System.Windows.Forms.ColumnHeader
    Friend WithEvents BtClearLog As System.Windows.Forms.Button
    Friend WithEvents BtClose As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.ListView1 = New System.Windows.Forms.ListView()
        Me.ColumnHeader1 = New System.Windows.Forms.ColumnHeader()
        Me.ColumnHeader2 = New System.Windows.Forms.ColumnHeader()
        Me.ColumnHeader3 = New System.Windows.Forms.ColumnHeader()
        Me.BtClearLog = New System.Windows.Forms.Button()
        Me.BtClose = New System.Windows.Forms.Button()
        Me.SuspendLayout()
        '
        'ListView1
        '
        Me.ListView1.Columns.AddRange(New System.Windows.Forms.ColumnHeader() {Me.ColumnHeader1, Me.ColumnHeader2, Me.ColumnHeader3})
        Me.ListView1.FullRowSelect = True
        Me.ListView1.Location = New System.Drawing.Point(16, 16)
        Me.ListView1.Name = "ListView1"
        Me.ListView1.Size = New System.Drawing.Size(440, 325)
        Me.ListView1.TabIndex = 6
        Me.ListView1.View = System.Windows.Forms.View.Details
        '
        'ColumnHeader1
        '
        Me.ColumnHeader1.Text = "用户名"
        Me.ColumnHeader1.Width = 100
        '
        'ColumnHeader2
        '
        Me.ColumnHeader2.Text = "时间"
        Me.ColumnHeader2.Width = 120
        '
        'ColumnHeader3
        '
        Me.ColumnHeader3.Text = "操作"
        Me.ColumnHeader3.Width = 300
        '
        'BtClearLog
        '
        Me.BtClearLog.Anchor = (System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right)
        Me.BtClearLog.Location = New System.Drawing.Point(272, 368)
        Me.BtClearLog.Name = "BtClearLog"
        Me.BtClearLog.Size = New System.Drawing.Size(80, 32)
        Me.BtClearLog.TabIndex = 5
        Me.BtClearLog.Text = "清除日志"
        '
        'BtClose
        '
        Me.BtClose.Anchor = (System.Windows.Forms.AnchorStyles.Bottom Or System.Windows.Forms.AnchorStyles.Right)
        Me.BtClose.DialogResult = System.Windows.Forms.DialogResult.Cancel
        Me.BtClose.Location = New System.Drawing.Point(368, 368)
        Me.BtClose.Name = "BtClose"
        Me.BtClose.Size = New System.Drawing.Size(80, 32)
        Me.BtClose.TabIndex = 4
        Me.BtClose.Text = "取消"
        '
        'FrmMLog
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(472, 422)
        Me.Controls.AddRange(New System.Windows.Forms.Control() {Me.ListView1, Me.BtClearLog, Me.BtClose})
        Me.MaximizeBox = False
        Me.Name = "FrmMLog"
        Me.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent
        Me.Text = "系统管理员日志"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub BtClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtClose.Click
        Me.Close()
    End Sub
    Sub LoadMLog()
        Dim SQLString As String
        SQLString = "SELECT * FROM tbLogManager "
        'SQL查询语句
        Dim ObjectdsDataSet As New DataSet()
        Dim oleconn As New OleDb.OleDbConnection(CONN)
        Dim adapter As New OleDb.OleDbDataAdapter()
        adapter.TableMappings.Add("Table", "Log")
        Dim cmd As OleDb.OleDbCommand = New OleDb.OleDbCommand(SQLString, oleconn)
        cmd.CommandType = CommandType.Text
        adapter.SelectCommand = cmd
        If oleconn.State <> ConnectionState.Open Then
            oleconn.Open() '打开数据库连接
        End If
        cmd.ExecuteNonQuery() '执行SQL语句
        If oleconn.State <> ConnectionState.Closed Then
            oleconn.Close()  '关闭数据库连接
        End If
        adapter.Fill(ObjectdsDataSet)
        Dim oRow As DataRow
        Dim oTable As DataTable
        oTable = ObjectdsDataSet.Tables("Log")
        Dim litem As ListViewItem
        For Each oRow In oTable.Rows
            litem = New ListViewItem(oRow("Name").ToString)
            litem.SubItems.Add(oRow("OpTime").ToString)
            litem.SubItems.Add(oRow("Operation").ToString)
            Me.ListView1.Items.Add(litem)            '添加记录
        Next
    End Sub

    Private Sub BtClearLog_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtClearLog.Click
        If MsgBox("确定要清除系统管理员日志吗？", MsgBoxStyle.Exclamation + MsgBoxStyle.YesNo) = MsgBoxResult.Yes Then
            Dim SQLString As String
            SQLString = "DELETE  FROM tbLogManager "
            CommandRecord(SQLString)
            AddLog("清除所有系统管理员日志数据")
            LoadMLog()
        End If
    End Sub

    Private Sub FrmMLog_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        LoadMLog()
    End Sub
End Class