主题：请教狐狸爸爸关于DataList

Dim dst As WinForm.DataList = e.Form.Controls("DataList1")
For Index As Integer = 0 To dst.Count - 1
    If dst.GetChecked(Index) Then
        Dim dr1 As DataRow = dst.GetDataRow(Index)
        Dim dr2 As DataRow = DataTables("表B").AddNew()
        For Each dc As DataCol In DataTables("表A").DataCols
            dr2(dc.Name) = dr1(dc.Name)
        Next
    End If
Next

这段代码中的DataList我中帮助中查询不到，代码的第一句也不知道是什么意思，请狐狸爸爸指点一下