สอบถามวิธี Save Listview ตอนปิด form หน่อยครับ เวลา add ข้อมูลลง listview แล้วปิด form แล้วเปิดใหม่ข้อมูลหายครับ

Private Sub btn_SaveWeightIN_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_SaveWeightIN.Click
     
        Dim array_item(8) As String
        array_item(0) = ListView_save.Items.Count + 1
        array_item(1) = txt_add.Text
        array_item(2) = txt_search.Text
        array_item(3) = txt_search1.Text
        array_item(4) = txt_search2.Text
        array_item(5) = txt_search3.Text
        array_item(7) = txt_date.Text
        array_item(8) = txt_time.Text
        With Frm_main
            array_item(6) = .Label_w2.Text
        End With
        Dim itm As New ListViewItem(array_item)
        ListView_save.Items.Add(itm)
        txt_add.Clear()
        txt_search.Clear()
        txt_search1.Clear()
        txt_search2.Clear()
        txt_search3.Clear()

    End Sub