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Dataset to XML - How to include "Null"/blank columns

From: "Steven" <steven@----------------.----------.--.-->
To: NULL
Date: 8/3/2005 11:25:00 AM
 Hi,

I have a dataset where some of the values are "".  When writing the dataset 
to XML using the following approach, it only writes those columns that have 
values.  I really need all columns to be written to the file regardless of 
whether or not a value exists.

        Dim objAdapter As SqlClient.SqlDataAdapter = New 
SqlClient.SqlDataAdapter(SQL, GetDBProvider(DBName))

        Dim objDataTable As New System.Data.DataSet
        objAdapter.Fill(objDataTable)
        objAdapter.Dispose() : objAdapter = Nothing
        objDataTable.WriteXml(XMLPath, XmlWriteMode.IgnoreSchema)

I'm sure this is really easy but I'm stumped and having looked at code all 
over the place am starting to confuse myself.  I'm guessing I have to 
iterate through the dataset and extract/write each value in turn, but 
looking at the other code examples I'm at a bit of loss as to how

Any and all replies appreciated

Steven 




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