dataSet.GetXml() doesn't return xml for null or blank columns

Question

When I call dataSet.GetXml() I don\'t get any xml returned for columns with null or blank values. Is there a simple, efficient way to get around this? An example of the prob

Answer 1

            if (ds != null && ds.Tables.Count > 0 && ds.Tables[0].Rows.Count == 0)
            {
                foreach (DataTable dt in ds.Tables)
                {
                    foreach (DataColumn dc in dt.Columns)
                    {
                        dc.DataType = typeof(String);
                    }
                }

                DataRow dr = ds.Tables[0].NewRow();
                for (int i = 0; i < dr.ItemArray.Count(); i++)
                {
                    dr[i] = string.Empty;
                }
                ds.Tables[0].Rows.Add(dr);
            }