Help with saving data to Datatable and displaying data in listbox

Hi,
C1NSN.DisplayMember  is = NSN and C1NSN.ValueMember NSN_ID. I would like to use a datatable to store multiple rows (one row per record) to be able to use Next and Prvious buttons to move through the rows. Probloem is when I use C1NSN.DataSource = dtNSN I get
all rows, but I only one to display the first row in the listbox, the other problem is, the code is returning 5 rows, when it should only return two rows as explained in my initial post.

How do I only see one row for each record? as shown in part B I only have two records, but the  datatable contains 5 rows.

Thanks,

V.

Hi,

Below is the code that worked with the web version. How do I replace session in the Windows version?

 Public Function SearchCtry()

  Dim xdNSN As New Xml.XmlDocument
  xdNSN.Load(Server.MapPath("~/App_DataA/NSN.xml"))
  Dim fuze_Nsn_id As String
  Dim NSNID As String
  Dim NSNID2 As String
 
  dtMaster.Columns.Add("NSN_ID", GetType(String))
  dtMaster.Columns.Add("NSN", GetType(String))


  dtKeyMaster = New DataTable
  dtKeyMaster.Columns.Add("rowId", GetType(String))
  dtKeyMaster.Columns.Add("keyLinkAid", GetType(String))
  dtKeyMaster.Columns.Add("keyNsn", GetType(String))

  Dim rowIndex As Integer = 1

    For Each xnLink As Xml.XmlNode In xdLink.SelectNodes("/Root/LinkA[Ctry_ID='" & C1ctry.SelectedItem.Value & "']")

NSNID = xnLink.SelectSingleNode("NSN_ID").InnerText
fuze_Nsn_id = NSNID
LinkAID = Link_ID

            'For Listbox
            For Each xnNSN As Xml.XmlNode In xdNSN.SelectNodes("/Root/NSNTable[contains('," & NSNID & ",', concat(',', NSN_ID, ','))]") 'NSN.xml
                NSNID2 = xnNSN.SelectSingleNode("NSN_ID").InnerText
                If dtMaster.Select("NSN_ID in (" & NSNID2 & ")").Length = 0 Then
                    Name = xnNSN.SelectSingleNode("NSN").InnerText
                    dtMaster.Rows.Add({fuze_Nsn_id, LinkAID, NSNID2, Name})
                End If
            Next

   dtMaster.AcceptChanges()
   dtKeyMaster.Rows.Add({rowIndex, LinkAID, fuze_Nsn_id, NSSIda})
   rowIndex += 1

 Next


  Session("dtMaster") = dtMaster
  Session("dtKeyMaster") = dtKeyMaster
  ViewDataB(dtKeyMaster.Rows(0)(1), dtKeyMaster.Rows(0)(2))

End Function


Private Sub ViewDataB(ByVal keyLinkAid As String, ByVal keyNsn As String)

  Dim _table As DataView = dtMaster.DefaultView
  _table.RowFilter = "NSN_ID in (" & keyNsn & ")"
  C1NSN.DataSource = _table
 C1NSN.DataTextField = "NSN"
 C1NSN.DataValueField = "NSN_ID"
C1NSN.DataBind()
End Sub

Below is the code i used in the web  version to move to the next row in the table, how do i replace Session in the Windows version?

        dtMaster = Session("dtMaster")
        dtKeyMaster = Session("dtKeyMaster")
        Dim rowId As Integer = Session("currentIndex") + 1
        ViewDataB(dtKeyMaster.Rows(rowId)(1), dtKeyMaster.Rows(rowId)(2))

I am also using the code below for datafield to move to the next row for datafields not using dtmaster but MyRowIndex can not replace Session.

 MyRowIndex = If(MyRowIndex < dtDonor.Rows.Count - 1, MyRowIndex + 1, MyRowIndex)
        C1CountryOrigin.Text = dtDonor.Rows(MyRowIndex).Item("Country")

Hi,

I was able to move to the next row using the following code:

  ViewDataB(dtKeyMaster.Rows(MyRowIndex)(1), dtKeyMaster.Rows(MyRowIndex)(2))

Any ideas on how to move to first and last row?


Thanks,

V.

Issue is resolved. Thanks.