用VB.NET创建一个三层应用程序的例子……

Friend WithEvents Client_DataSet As Data_Access_表示层.localhost.super_ds

Friend WithEvents DataGrid1 As System.Windows.Forms.DataGrid

@#Required by the Windows Form Designer

Private components As System.ComponentModel.Container

@#NOTE: The following procedure is required by the Windows Form Designer

@#It can be modified using the Windows Form Designer.

@#Do not modify it using the code editor.

<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

Me.Button1 = New System.Windows.Forms.Button()

Me.Button2 = New System.Windows.Forms.Button()

Me.Button3 = New System.Windows.Forms.Button()

Me.Client_DataSet = New Data_Access_表示层.localhost.super_ds()

Me.DataGrid1 = New System.Windows.Forms.DataGrid()

CType(Me.Client_DataSet, System.ComponentModel.ISupportInitialize).BeginInit()