Building a Grdivew with Web Service Data - asp.net

Question

Hi i am trying to build a Gridview Based on my Web Service Data.
I am not not getting any errors when I compile the code, however the gridview does not display. Not sure if this is because I am building the gridview wrong or the data is not being pulled correctly. The web service does work because I have tested it.
Here is the code i am using to bind the gridview:
Private Sub BindGrid()
Dim objVen As New ISISVendor.VendorInterfaceClient
Dim LoginResp As New ISISVendor.LoginResponse
Dim POResp As New ISISVendor.PoSummaryResponse
Dim pod As New ISISVendor.PoDetailResponse
Dim dt As New DataTable
dt.Columns.Add("Status")
dt.Columns.Add("Sender")
dt.Columns.Add("PO Number")
dt.Columns.Add("Date")
dt.Columns.Add("Action")
gvv.DataSource = dt
POResp = objVen.GetOpenPos("3274")
Dim dr As DataRow
If POResp.Pos.Count > 0 Then
For j As Integer = 0 To POResp.Pos.Count - 1
dr = dt.NewRow
dr.Item("Status") = POResp.Pos(j).Status
dr.Item("Sender") = "COMPANY TEST"
dr.Item("PO Number") = POResp.Pos(j).PoNumber
dr.Item("Date") = POResp.Pos(j).PoDate
dr.Item("Action") = ""
Next
End If
gvv.DataBind()
End Sub

Answer 1

Seem you are not adding the datarow to the data table
Please try as below
POResp = objVen.GetOpenPos("3274")
Dim dr As DataRow
If POResp.Pos.Count > 0 Then
For j As Integer = 0 To POResp.Pos.Count - 1
dr = dt.NewRow
dr.Item("Status") = POResp.Pos(j).Status
dr.Item("Sender") = "COMPANY TEST"
dr.Item("PO Number") = POResp.Pos(j).PoNumber
dr.Item("Date") = POResp.Pos(j).PoDate
dr.Item("Action") = ""
dt.Rows.Add(dr)
Next
End If
gvv.DataSource = dt
gvv.DataBind()