server/AyaNova/DataList/DataListSqlSelectBuilder.cs

@@ -39,6 +39,9 @@ namespace AyaNova.DataList
 
             foreach (string ColumnName in listViewFieldList)
             {
+                //skip the df column, it's already been processed above
+                if (ColumnName == "df")
+                    continue;
                 AyaDataListFieldDefinition o = objectFieldsList.FirstOrDefault(x => x.FieldKey == ColumnName);
 #if (DEBUG)
                 //Developers little helper