Gridview Hyperlink containing bound data values.

I am trying to use a gridview dynamically populated where the first column is a hyperlink field containing a tracking number from my database for each ticket.  I can't seem to get this to work?  Here's what I have so far in ASP and VB...

              <asp:Panel ID="ExistingPanel" runat="server" Height="90px" 
                  ScrollBars="Vertical" Width="505px">
                  <asp:GridView ID="gvExisting" runat="server" Width="494px">     
                          <asp:HyperLinkField HeaderText="Tracking #  " />

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  Function LoadExisting() As ICollection
    Dim RecCnt As Integer = 0
    Dim connectionString As String = ConfigurationManager.ConnectionStrings("EDWCERTConnectionString").ConnectionString
    Dim connection As SqlConnection = New SqlConnection(connectionString)
    Dim SqlQry As StringBuilder = New StringBuilder
    Dim sql As String
    Dim dt As DataTable = New DataTable()
    Dim dr As DataRow

    dt.Columns.Add(New DataColumn("Tracking #", GetType(String)))
    dt.Columns.Add(New DataColumn("Description", GetType(String)))
    'dt.Columns.Add(New DataColumn("Submitter", GetType(String)))

    SqlQry.Append("SELECT * FROM AllRequests_Status_V WHERE es_contact_type_id = '1' ")

    Select Case rblExtStatus.SelectedIndex
      Case 0 ' All
      Case 1 ' Approved
        SqlQry.Append(" And es_review_status_values like '%Approv%' ")
      Case 2 ' In Review
        SqlQry.Append(" And Review_Status_ID = '4' ")
      Case 3 ' Rejected
        SqlQry.Append(" And Review_Status_ID = '6' ")
      Case 4 ' Withdrawn
        SqlQry.Append(" And Review_Status_ID = '7' ")
    End Select

    sql = SqlQry.ToString '"SELECT * FROM AllRequests_Status_V WHERE CERTIFY_IND = 'N' AND NT_USER_ID LIKE '" & Session("LoginId") & "%'"
    Dim command As SqlCommand = New SqlCommand(sql, connection)

      Dim reader As DbDataReader = command.ExecuteReader()

      Do While reader.Read()
        dr = dt.NewRow
        dr(0) = reader("Tracking_Number") 
        dr(0) = reader("Brief_Description_Purpose")
        'RecCnt = RecCnt + 1
    Catch ex As Exception
      Throw ex
      If Not connection Is Nothing Then
      End If
      connection = Nothing
      command = Nothing
    End Try
    Dim dv As DataView = New DataView(dt)
    Return dv
  End Function

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By dynamic, do you mean variable number of columns? If not you can declare the grid in aspx code and populate it in code behind.
Lokesh B RDeveloperCommented:

Add RowDataBound event and try

<asp:GridView ID="gvExisting" runat="server" Width="494px" OnRowDataBound="gvExisting_RowDataBound">

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void gvExisting_RowDataBound(object sender, GridViewRowEventArgs e)
    if (e.Row.RowType == DataControlRowType.DataRow)
        var linkColumn = e.Row.Cells[0];
        linkColumn.Controls.Add(new HyperLink { NavigateUrl = "", Text = linkColumn.Text });

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Make Index correct here

dr(0) = reader("Tracking_Number") 
dr(1) = reader("Brief_Description_Purpose")

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EDW_GideonAuthor Commented:

No same number of columns, I tried to configure the Grid and do it in code behind but every time I did that the columns added by the code behind were added to the right of the configured columns not in them?


I will try your solution shortly, thanks.

(This is going to lead into a second question I will post.  I need the click event to trigger a code behind event not direct to a new address as shown in Lokesh's example.  Perhaps I'm approaching this wrong but I couldn't get the Gridview selected index event to fire so trying to add a link thinking that would work?)
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