When a row group is added to a report is adds a column on the left by default spanning several rows. Adding a DocumentMapText entry on this rowgroup generates a document map which is shown on the left when the report is rendered.
In our application we need to group rows together but since we have limited horizontal space (we have a large number of columns) we normally add the row group with a header, then either delete or hide the row group column on the left.
However, as soon as that column is deleted or set to invisible the document map entries for that row group disappears. The row group still renders (we get all the row group info we need in the row group header and/or footer), but the document map is empty.
In our application we need to group rows together but since we have limited horizontal space (we have a large number of columns) we normally add the row group with a header, then either delete or hide the row group column on the left.
However, as soon as that column is deleted or set to invisible the document map entries for that row group disappears. The row group still renders (we get all the row group info we need in the row group header and/or footer), but the document map is empty.