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New Blog Posts: Merging Reports - Part 1 and Part 2

ppwwrichEd

edited October 2007 in General
Hi,

I'm using infopower to load blobs using wwDbRichedit that contains Rtf
documents or Excel-Pastes
& print them via Reportbuilder with ppdbRichtext (updated
with ppWWRichEd ).
But the print is never complete (stops at the end of a page - mostly the
second page) and the next page is empty or the text is mixed with data of
the following record.

Now I use a dbrichtext followed by a subreport with data gathered in the
event Onprint.
What can I try to make it work ?
Maybe it is a timing problem or is the size calculation wrong?

Delphi BDS2006
RB 10.06
InfoPowerStudio2007

Best Regards,
Herman Janssens
ACTA-B nv

Comments

  • edited October 2007

    You say "..I use a dbrichtext followed by a subreport with data gathered in
    the
    event Onprint."

    What do you mean 'data gathered in the OnPrint'? Is the DBRichText not
    connected to a blob it loads directly?

    As a test try setting subreport.Visible to false, then run the report to
    determine whether the DbRichTet generates correctly.


    --
    Nard Moseley
    Digital Metaphors
    www.digital-metaphors.com

    Best regards,

    Nard Moseley
    Digital Metaphors
    www.digital-metaphors.com
  • edited October 2007
    Hello Nard,

    Yes, the Dbrichtext is connected to an blob
    with setting the subreport.Visible to false, the Dbrichtext is ok
    My fault, the subreport was not always visible in the program execution.

    But I have a subreport that contains
    DBrichtext1
    Child Subreport1 with onprint event that executes a sql to fill the pipeline
    for subreport1
    DBrichtext2 with same text as 1 (to test)
    Child Subreport2 with onprint event that executes a sql to fill the pipeline
    for subreport2

    All with the exact shiftrelative setting.

    if the subreport1 is visible Dbrichtext1 never prints all of the text; it
    contains 3 pages
    but it print 2 pages of it and stops at the end of the 2nd page.
    I don't get it, Nard

    Herman.


  • edited October 2007

    Below is an article that discuses techniques for linking data. Do not use
    the Subreport.OnPrint event, that will not work.


    ------------------------------------------------------
    Tech Tip: Linking SQL Queries for Master/Detail Data
    ------------------------------------------------------

    The following example shows two options for linking SQL queries to create a
    master/detail relationship.

    In this example, we are using Delphi's DBDemos data to create a
    Customer/Order relationship. Thus we wish to link the Orders detail to the
    Customer master.

    I. Delphi Query Linking
    ------------------------

    a. Set the detail TQuery.DataSource property to point to the master
    query's TDataSource component.

    b. In the SQL "Where" clause for the detail query use a ':' followed by
    the linking field name from the master:

    example
    select *
    from orders
    where orders.CustNo = :CustNo

    Now each time the master record position changes, the detail query will
    automatically be refreshed with the correct result set.


    II. RB DataPipeline Linking
    -----------------------------

    a. Set the detail DataPipeline.MasterDataPipeline to point to the master
    DataPipeline.

    b. Use the detail DataPipeline.MasterFieldLinks property to define the
    linking relationship

    c. In the SQL for the detail, retrieve all records and sort them by the
    linking master field:

    select *
    from Orders
    order by CustNo


    III. Manual filtering
    ---------------------

    use the master datapipeline.OnRecordPositionChange event to filter the
    detail data.

    example:

    detaildatapipeline.Close;
    detailDataPipeline.SQL.Text :=
    detailDataPipeline.Open;



    Notes:

    1. Using RB DataPipeline, each query is executed only a single time - thus
    performance is much faster.

    2. RB Professional and Enterprise Editions include a visual Data environment
    for creating SQL queries, defining linking relationships, and creating
    Ask-At-Runtime parameters. Using the RB tools you could create the above
    linked queries in about 10 seconds.


    --
    Tech Support mailto:support@digital-metaphors.com
    Digital Metaphors http://www.digital-metaphors.com






    --
    Nard Moseley
    Digital Metaphors
    www.digital-metaphors.com

    Best regards,

    Nard Moseley
    Digital Metaphors
    www.digital-metaphors.com
This discussion has been closed.