单击按钮后如何将数据显示到GridView中

Question

您好我有两个gridView和一个按钮。当我按下按钮时，它将处理gridView1上的数据。这是按钮过程的代码：

 Protected Sub btnHitung_Click(sender As Object, e As EventArgs) Handles btnHitung.Click
    Dim vNhari As String = ddlNhari.SelectedValue

    'Jika belum pilih jumlah hari
    If vNhari = "" Then
        ClientScript.RegisterStartupScript(Page.[GetType](), "Validation", "<script language='javascript'>alert('Pilih hari terlebih dahulu')</script>")
    Else
        'Get batas min. tanggal dari jumlah hari yang dipilih
        Dim vLtgl As Date = Date.Now.AddDays(-vNhari).ToShortDateString
        For Nhari As Integer = 0 To Convert.ToInt32(vNhari)
            Dim jumSaham As Int32
            Dim jum As Int32
            For data As Integer = 0 To InvestorGridView.Rows.Count - 1      '-1 : Untuk exclude header
                'Jika tanggal pada dataGrid = vLtgl, maka ambil datanya
                If Convert.ToDateTime(InvestorGridView.Rows(data).Cells(0).Text).ToShortDateString = vLtgl Then
                    jum = Convert.ToInt32(InvestorGridView.Rows(data).Cells(3).Text)
                End If
                jumSaham = jumSaham + jum
            Next
            vLtgl = vLtgl.AddDays(1).ToShortDateString
        Next
    End If
End Sub

任何人都知道如何将vLtgl值和jumSaham值存储到数据表中，然后在gridView2中显示它？我真的卡在这里 感谢