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Editorial Team
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Asked: 2026-06-09T14:40:50+00:00

I am loading the dataset table values into a .xml table. I then email

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I am loading the dataset table values into a .xml table. I then email this table if there are results. How can I load null columns into the .xml table below? FOr example _New_Invoice_Number will occasionally be Null because it is a nullable value.

 Dim void = _
            <html>
                <body>
                    <table border="1">
                        <tr><th>Store #</th><th>Invoice Date</th><th>Invoice #</th><th>Vehicle Tag</th><th>Void Reason</th><th>Invoice Total</th><th>New Invoice #</th><th>Vehicle Tag</th><th>New Invoice Total</th><th>Re-Tendered?</th><th>User Name</th></tr>
                        <%= From vtest In Me.DataDeliveryServiceDataSet.datatable.AsEnumerable _
                            Select <tr><td><%= vtest.Store_Number %></td>
                                       <td><%= Convert.ToDateTime(vtest.Invoice_Date).ToString("M/d/yy") %></td>
                                       <td><%= vtest.Invoice_Number %></td>
                                       <td><%= vtest.Vehicle_Tag %></td>
                                       <td><%= vtes.Void_Reason %></td>
                                       <td><%= vtest.Invoice_Total %></td>
                                       <td><%= vtest._New_Invoice__ %></td>
                                       <td><%= vtest._Vehicle_Tag %></td>
                                       <td><%= vtest.New_Invoice_Total %></td>
                                       <td><%= vtest._Re_tendered_ %></td>
                                       <td><%= vtest.User_Name %></td></tr> %>
                    </table>
                </body>
            </html>
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1 Answer

  1. Editorial Team

    Here is an example:

    Sub Main()
    Dim a As Nullable(Of Integer)
    Dim b As String

    Dim c = IIf(IsNothing(a), "", a.ToString())
    Dim d = IIf(IsNothing(b), "", b)
End Sub

<td><%= IIf(IsNothing(vtest.Vehicle_Tag), "", vtest.Vehicle_Tag) %></td>
<td><%= IIf(IsNothing(vtest.Invoice_Number), "", vtest.Invoice_Number.ToString()) %></td>

    Another option is to handle Null’s on the SQL side:

    select coalesce(Vehicle_Tag, '') from myTable
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