Public Class DataForm1
    Inherits System.Windows.Forms.Form

#Region " Windows 窗體設(shè)計(jì)器生成的代碼 "

    Public Sub New()
        MyBase.New()

        '該調(diào)用是 Windows 窗體設(shè)計(jì)器所必需的。
        InitializeComponent()

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

    End Sub

    '窗體重寫 dispose 以清理組件列表。
    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 窗體設(shè)計(jì)器所必需的
    Private components As System.ComponentModel.IContainer

    '注意: 以下過程是 Windows 窗體設(shè)計(jì)器所必需的
    '可以使用 Windows 窗體設(shè)計(jì)器修改此過程。
    '不要使用代碼編輯器修改它。
    Friend WithEvents objDataSet1 As WindowsApplication1.DataSet1
    Friend WithEvents btnLoad As System.Windows.Forms.Button
    Friend WithEvents grddetail As System.Windows.Forms.DataGrid
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.objDataSet1 = New WindowsApplication1.DataSet1
        Me.btnLoad = New System.Windows.Forms.Button
        Me.grddetail = New System.Windows.Forms.DataGrid
        CType(Me.objDataSet1, System.ComponentModel.ISupportInitialize).BeginInit()
        CType(Me.grddetail, System.ComponentModel.ISupportInitialize).BeginInit()
        Me.SuspendLayout()
        '
        'objDataSet1
        '
        Me.objDataSet1.DataSetName = "DataSet1"
        Me.objDataSet1.Locale = New System.Globalization.CultureInfo("zh-CN")
        '
        'btnLoad
        '
        Me.btnLoad.Location = New System.Drawing.Point(10, 10)
        Me.btnLoad.Name = "btnLoad"
        Me.btnLoad.Size = New System.Drawing.Size(88, 23)
        Me.btnLoad.TabIndex = 0
        Me.btnLoad.Text = "加載(&L)"
        '
        'grddetail
        '
        Me.grddetail.DataMember = "detail"
        Me.grddetail.DataSource = Me.objDataSet1
        Me.grddetail.HeaderForeColor = System.Drawing.SystemColors.ControlText
        Me.grddetail.Location = New System.Drawing.Point(10, 43)
        Me.grddetail.Name = "grddetail"
        Me.grddetail.Size = New System.Drawing.Size(380, 197)
        Me.grddetail.TabIndex = 1
        '
        'DataForm1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14)
        Me.ClientSize = New System.Drawing.Size(392, 223)
        Me.Controls.Add(Me.btnLoad)
        Me.Controls.Add(Me.grddetail)
        Me.Name = "DataForm1"
        Me.Text = "DataForm1"
        CType(Me.objDataSet1, System.ComponentModel.ISupportInitialize).EndInit()
        CType(Me.grddetail, System.ComponentModel.ISupportInitialize).EndInit()
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub btnLoad_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoad.Click
        Try
            '嘗試加載數(shù)據(jù)集。
            Me.LoadDataSet()
        Catch eLoad As System.Exception
            '在此處添加錯(cuò)誤處理代碼。
            '顯示錯(cuò)誤信息(如果有)。
            System.Windows.Forms.MessageBox.Show(eLoad.Message)
        End Try

    End Sub
    Public Sub LoadDataSet()
        '創(chuàng)建一個(gè)新數(shù)據(jù)集以保存從 FillDataSet 調(diào)用返回的記錄。
        '使用了一個(gè)臨時(shí)數(shù)據(jù)集，這是因?yàn)樘畛洮F(xiàn)有的數(shù)據(jù)集
        '需要重新綁定數(shù)據(jù)綁定。
        Dim objDataSetTemp As WindowsApplication1.DataSet1
        objDataSetTemp = New WindowsApplication1.DataSet1
        Try
            '嘗試填充臨時(shí)數(shù)據(jù)集。
            objDataSetTemp = CType(Me.objDataSet1.Clone, WindowsApplication1.DataSet1)
        Catch eFillDataSet As System.Exception
            '在此處添加錯(cuò)誤處理代碼。
            Throw eFillDataSet
        End Try
        Try
            grddetail.DataSource = Nothing
            '清空數(shù)據(jù)集中的舊記錄。
            objDataSet1.Clear()
            '將記錄合并到主數(shù)據(jù)集中。
            objDataSet1.Merge(objDataSetTemp)
            grddetail.SetDataBinding(objDataSet1, "detail")
        Catch eLoadMerge As System.Exception
            '在此處添加錯(cuò)誤處理代碼。
            Throw eLoadMerge
        End Try

    End Sub
End Class