Datapipelines — ReportBuilder Support Forums

Detail line breaking on the first page.

bumboltorin — Wed, 24 Dec 2025 20:14:17 +0000

Hello, Happy Holidays. I'm testing your component for Delphi Florence and I've encountered a problem. I can't figure out how to print the detail on the first page of the report. It breaks in the middle, leaving the rest of the first page blank. From the second page onwards, it normalizes. I'm sending a simple program that simulates the problem. I need 4 to 5 groups in a report, and the detail should print in the 5th group. Could you help me by indicating where I need to correct this so that the detail prints on the first page with all the groups? Thank you, Milton

PRoblems with TppJITPipeline

jajaja — Tue, 23 Dec 2025 11:31:12 +0000

Hello, I have a fairly specific problem with one of my reports. In short, the report freezes when I try to display a value from a `TppJITPipeline`, **but only when the report consists of multiple pages**. The report never reaches the end: the **“Close”** button does not appear and remains **“Cancel”**, and clicking it does nothing. I then have to terminate the application using Task Manager. The `TppJITPipeline` itself is very simple: it contains only **one record** and reads its values from a record. The value itself is displayed correctly in the report, so that does not seem to be the issue. It makes no difference whether I place the field in the header band or the footer band. As soon as I add this field, the report is no longer generated completely. Where should I start looking? Any help would be greatly appreciated! kind regards, Dirk Janssens. For completeness, below is my TppJITPipeline component (without the fields), and the procedure jitOrderTotalenGetFieldValue : object jitOrderTotalen: TppJITPipeline InitialIndex = 0 RecordCount = 1 UserName = 'jitOrderTotalen' OnCloseDataSet = jitOrderTotalenCloseDataSet OnGetFieldValue = jitOrderTotalenGetFieldValue Left = 304 Top = 16 object jitOrderTotalenppField1: TppField FieldAlias = 'Huur_Dag_Bruto' FieldName = 'Huur_Dag_Bruto' FieldLength = 10 DataType = dtDouble DisplayWidth = 10 Position = 0 end .......etc... function TDM_Reportbuilder.jitOrderTotalenGetFieldValue( aFieldName: string): Variant; begin try if OrderTotalen.DagenInWeek = 0 then Bepaal_Offertetotalen_Op_Basis_Van_Leveringsgegevens ; DM_Codesite.csDebug.TraceMethod( Self, 'jitOrderTotalenGetFieldValue', tmoTiming ); DM_Codesite.csDebug.Send( aFieldname); case jitOrdertotalen.FindField(aFieldName) of 0 : REsult := OrderTotalen.Dagprijs_Bruto ; //similar for 1..33] 34 : REsult := OrderTotalen.TeVerzekeren_PerDag * 5 ; else Result := 'onbekend veld: ' + aFieldName ; end; except //The exception is never triggered on E : Exception do DM_Codesite.csDebug.SendException('Fout in cdsFacturenCalcFields', E ); end; end;

Detail datapipeline

Felixinasa — Wed, 03 Dec 2025 15:04:11 +0000

Hello Why is it that in some reports I can assign one DataPipeline to the report and another DataPipeline to the detail, but in other reports I can’t? Thanks

Moving fields between pipelines

Jan — Tue, 04 Nov 2025 07:52:31 +0000

Hello, We have our own Pipeline inherited from TppCustomDataPipeline. I am not the author. I need to go through all our reports and move some fields from one pipeline to another. The fields are in both data sources. I do this with the following code. It seems to work. When I open Designer, I can see the fields there. However, after Preview, they disappear. They are not part of SQL. When I do the same thing in Designer, it works. I'm missing some refresh call there. I can't figure out which one. Can you please advise me? Thanks, Jan


      var LI := AOldPipeline.IndexOfFieldName(AFieldName);
      if LI > -1 then
      begin
        var LField := AOldPipeline.Fields[LI];
        LI := ANewPipeLine.DefineField(LField.FieldName, LField.DataType, LField.FieldLength);
          AOldPipeline.RemoveField(LField);
      end;

infinite loop with report builder 23 and Embarcadero Athens in case of subreport

giacomocerati — Wed, 02 Jul 2025 07:44:48 +0000

I have 2 pipelines, one main and one connected to the main. Both load data from two txt files. I have configured the MasterFieldLinks correctly. When I open the print if the main report has multiple rows, the print preview goes into an infinite loop. Otherwise, if the main report has only one row, the printout works. Using Embarcadero 10.4 and Report Builder 12 I did not have these problems on the same development code.

Linked datasets Connected to DBPipelines - Is This OK?

lawrencek — Tue, 19 Mar 2024 17:57:16 +0000

I programatically create Datasets and relationally build SQL with their Datachange events, opening and closing them (but not recreating the components). I create add pipelines. This works nicely. Should I do this with pipelines datachange? Don't want to! Is this OK or can you foresee any problems? The concept works well, but do I have to link them within RB? D7 RB.2203

Master detail pipline with underscore in key fields

MikaKois — Tue, 20 Feb 2024 13:29:47 +0000

ReportBuilder 19.04 if have two datasets: master has keyfield with values 1_pkt 2pkt detail has values 1_pkt item1 1_pkt item2 2pkt item1 2pkt item2 I only get values of 2packet if subreport is present. If I remove subreport. I get 1_pkt also. Or if i just print pure subreport data. I have verified order of items, they are same. Is there something special with underscore ?

Change Field Names

zippo — Fri, 21 Jul 2023 10:50:30 +0000

Hello! I'm trying to port a lot of reports (around 200, but multiplied by 100 because many customer DBs that have a little customised reports) to a new DB. The new DB is very similar to the old DB, but it has different field names (type of data is still the same). I came up with the idea of some type of converting tool that would change the DB names. I will prepare a list of source and target names. Is technically possible to load a report, change the Fieldnames (also in script and calculated) in the report and save it back? I know there will be some fields that will not convert, but my hope is to ger 90% of the reports converted, the rest will be done by hand.

Calculated Field change break the link to the DBText component

zoltan_andrusecz — Fri, 18 Nov 2022 15:02:55 +0000

Version: ReportBuilder 21.04 On the Report's Pipeline Data object if we have a Calculated field with a Field Alias like "Customer Name" and SQL Alias "Select_C_Custname_from_H" The DBText component references this calc field by its Field Alias "Customer Name" If we change the Function expression on the Calculated Field, it will change the Field's SQL Alias automatically to "Select_C_Address1_from_H" This in turn breaks the DBText's link to the Field. The DBText component will be referencing field "SELECT_C_CustName_FROM_H" and not "Customer Name". This seems to be the old SQL field alias of the calc field. This appears to be a bug. Can anyone else recreate this or is it just me? Thank you, Zoltan.

Memory leak with DB JIT's

markk — Mon, 25 Jul 2022 20:48:35 +0000

In our app when we run a SQL statement our database.connection method for returning the ADO SQL connection to be used creates a new connection object per 'database connection' per thread if one doesn't exist yet. We also keep a track of connections assigned to each 'database' object and another list/dictionary for ADO connections created in a thread so that we can track and detect developer failure to close and cleanup. We normally close the connection when it's finished with and then just before thread exit call 'releaseThreadsConnections' which checks to see that connections for the thread have all been closed and free'd, when they haven't it throws an assert and cleans up. I haven't been able to find any events or similar suitable place that I can hook into to do a connection close (within the correct thread report builder runs the JIT queries in), nor where I can call our 'releaseThreadsConnections'. Note that they could be called sequentially in the same event. Are you able to advise if there is anywhere suitable? The Developers Guide hasn't been any help and I've tried looking for your online help but can't find it and the downloadable WinHelp and HTML help at https://www.digital-metaphors.com/download/documentation/#OnlineHelp don't work on my computer

Cannot able to assign a datasource to TppBDEPipeline

rajeev_kumar — Wed, 18 May 2022 09:36:25 +0000

Hi, I am migarting my application from delphi 4 to 10.4. Currently I am using report builder 21.01. In older version, delphi 4 when assigning datasorce to TppBDEPipeline its working fine. But after migartion in delphi 10.4 its giving an error "Cannot assign a TFieldList to a TStringList" on assigning datasource to TppBDEPipeline. Code example: var FPipeLine : TppBDEPipeline; begin FPipeline.Datasource := DatasourceImprRapt;

Unit raTreeVw was compiled with a different version of ppToolResources.ToolImageList

rajeev_kumar — Fri, 11 Mar 2022 13:06:15 +0000

Hi, I am migrating my application from delphi 6 to 10.4. We are currently using Rbuilder 21.01. I am trying to build my application and getting this error : " Unit raTreeVw was compiled with a different version of ppToolResources.ToolImageList"

Getting an error Cannot assign a TFieldList to a TStringList

rajeev_kumar — Fri, 04 Mar 2022 08:47:53 +0000

Class TDaDOAQueryDataView not found.

rajeev_kumar — Mon, 07 Mar 2022 16:45:19 +0000

Hi, I am migrating my application from delphi 6 to 10.4. We are currently using Rbuilder 21.01. When we trying to loadreport its giving an error message "Class TDaDOAQueryDataView not found." or "Class TdaQueryDataView not found." . This error message comes on calling following code. This message was also coming in older version. FReportExplorer.LoadReport(FListView.ItemName, FListView.FolderId);

DBMemo wrong height calculation

matthias_infominds — Fri, 14 May 2021 08:53:56 +0000

Hi, I have noticed a problem with DBMemo. When a text ends up with a lot of spaces RB calculates the height of the field as if it were a Trim but then later when it performs the text it uses all the text with the spaces at the end and then resizes the very small to have space in the reserved place. The DBMemo has the property Strech turned on RB Version: 20.02 Build 67 Here the text that showed up wrong: Format: 60x7cm Druck: 1/0 farbig schwarz Papier: uso mano 80g Verarbeitung: geschnitten

TppDBRichText and TppJITPipeline

stefanrusche — Thu, 25 Mar 2021 18:07:40 +0000

Hello, I am using a report together with some TppJITPipelines. For the TppDBText elements, this works fine. However, there is one TppDBRichText element linked to one existing datafield in one existing datapipeline in the report and this does not fire the GetFieldValue event of the Pipeline. Is there anything specific, I could have done wrong? Are there any known limitations in this context? Any hints or workaround? Thank you Stefan

Report based on xml-data

ceider — Tue, 04 Aug 2020 15:05:28 +0000

Hi, within a project any data is stored as xml-data. This may be files or strings in a database. I now have to print this data. Our normal way is to create tables within a database, which works for decades very fine. I see different approaches to solve my problem: 1.) Use old way, create tables and .... Unfortunately the structure of the xml-data is something between "fits into a single table" upto "ERD does not fit onto a single page using fontsize=2". Maintaining this tables will be a horror 2.) Use textfiles by TextPipeline Use any magic way to create multiple CSV-Text-files which can be used by a textpipeline 3.) JITPipiline on objects Any of these XML-File is available as a object-structure. There could be multiple JITPipelines to walk through the objects. Any ideas or best practices how to solve my issue? Tia Carsten

Limiting a TeeChart to a Single Record

DataInspector — Thu, 30 Jul 2020 21:07:37 +0000

I am writing an invoicing program that runs through hundreds of invoices each month. Each invoice presents a visual indication of the project budget (the TeeDBChart). I struggled with the issue of limiting a TeeDBChart within a Report to the current record only. Here is my solution. Set up a memory-based table (e.g., FDMemTable) to hold the data you want to chart. Link each series to the Fields within this table. On the report's DBPipeline, use the OnDataChange event to write the contents to the memory-based table. You need to empty the memory-based table first so that it will only contain one record at a time. In my case, I needed three financial items for a stacked bar chart. Example of the ppDBPipelineReportQuery.OnDataChange event I used the following code: FDMemTableMyChart.EmptyDataSet; FDMemTableMyChart.Edit; FDMemTableMyChart.TotalBudget.Value := dm.ReportQueryTotalBudget.Value; FDMemTableMyChart.TotalSpent.Value := dm.ReportQueryTotalSpent.Value; FDMemTableMyChart.CurrentInvoice.Value := dm.ReportQueryTotal.Value + dm.ReportQueryTotalSpent.Value; FDMemTableMyChart.Post;

ReportBuilder Pipeline with blank parameters

ocpatayon — Wed, 08 Jul 2020 06:22:05 +0000

My pipeline was crushing when my parameter is blank - literally no characters, since i was using the parameter on my query pipeline. How to work on it? Sample pipeline will post below: select ID from invoice where (:RefNoFrom='Null' or CODE='asdad') it fetches an error when the parameter :RefNoFrom has no string or literally null

DBCalc not summing JIT value that is BCD

jwaler — Fri, 29 May 2020 14:02:40 +0000

I have a variant that contains a BCD value from a query that will not sum. The DBText will display each value but the Sum always returns 0. I am on 20.01 To reproduce you can do this. Create a JIT field with type Extended (no BCD option). An use this to generate values: function TForm1.JITGetFieldValue(aFieldName: string): Variant; begin Result := VarFmtBcdCreate(10); end;

how to connect database wit Report Builder

Tottof — Wed, 15 Apr 2020 11:50:58 +0000

Hey Guys, i am new and i am a total beginner. So please excuse my beginner question and i would be very thankful if you can help me out in this case. I am using sage 50 as ERP an i want to create reports with the report builder. Therefore i installed delphi 13 and the report builder. Now i have the problem, that i don`t know how to connect the report builder with the sage 50 Database. It would be great when you can help me with that case.

Using JITPipelines in a TService

ABTom — Tue, 18 Jun 2019 10:01:34 +0000

We are trying to produce reports out of a TService. We are using JITPipelines within the service (declared as public vars in the TService class) to transport the data to the report. The same code in a VCL app works fine. But within the service the data never shows up on the produced report. Does anyone know if the report only looks inside a TForm parent or whether it will look inside a parent TService too? I've modified the service to run as a console app in debug and can verify the JITPipelines are created and populated with data - it's the same code as used in the VCL, which works. Thanks

Report with subreport does not load

dataol — Thu, 16 May 2019 18:10:08 +0000

I've upgraded from version 15.05 to 19.04 and some reports are not loading (when I use TppDBPipeline master-detail out of the report).

Multiple ODBC Connections

sluser1 — Mon, 20 May 2019 20:36:18 +0000

Hi, Is it possible to use multiple ODBC connections? We'd like to include data from two databases, which are located on two separate machines. Much appreciated!

Master Detail pipelines using stored procedures

scottb — Tue, 12 Mar 2019 16:24:16 +0000

I have two pipelines in my report template, one is a detail dataset of the other (master). The detail pipeline is actually a stored procedure and requires an input parameter which identifies the unqique master record value to run the report for. The parameterized SQL does not help me, because I need the parameter in the input of the stored proc. For example the stored procedure SQL looks like this: Select * from GET_DETAIL_VALUES(:In_Master_Value) If I use the parameterized SQL, it just appends a where clause on, but I have no way of adjusting the original parameter IN_MASTER_VALUE. I have come to the conclusion that I should use an event of one of the data pipeline (onmasterrecordchanged, or ontraversal), but I dont know how to refer to the "built-in" data pipeline objects in code. The pipelines are not on a delphi form, they are built into the template file. Any help would be appreciated Scott

SELECT TOP 0 better than SELECT WHERE 'C'<>'C'

wilton_rad — Wed, 23 May 2018 12:10:03 +0000

we know that the report builder before executing the report executes a select * from table where 'c' <> 'c', it would be interesting to change this concept, and to use a select top 0, because this has a much greater performance. the command and run in a view in views that contain many unions the use of 'c' <> 'c' and extremely detrimental to the performance of the report I changed the sources of the report builder by adding the TOP 0 and removing where 'c' <> 'c', but it would be nice if this were native in future versions, see in the comparative images

Manual SQL Parameter to Subquery

aduna — Tue, 10 Apr 2018 13:23:55 +0000

Hello World I have two database tables, one of them with our articles, and the other with parent-child combinations. Now I try to show the whole article tree. We made two queries, in the main query we get the one parent article. In the second query, we get recoursively all childs and child-childs and so on. Now our problem: In the first query, I get the article id, which I need in the second query, to get the right childs. Normally I define the second query option "Linking SQL Generation" as "Parameterized SQL" and the article id form the parent query will be passed correctly to this subquery's where clause, but because of the complex recursively SQL statement, the report builder cannot build the subquery's where clause correctly, or rather to the right position. So I try now to use the subquery's "Linking SQL Generation" option "Manual SQL", so that I can handle the article id parameter by myself. So I defined a parameter and include this in our second query's where clause. But the subquery does not care, when I change the parameters value. I set the parameter on the "AfterOpenDataPipelines" event, but this is too late, because the subquery is loaded also already. I cannot find a function which will execute after the main query and before the subquery, to set my article id parameter, is there one such?... Or the second solution could be, to reload the subquery in the event "AfterOpenDataPipelines", but how to?... We use the ReportBuilder Enterprise Edition with Version 19.0 Build 76. Can somebody help me?

Parameter object is improperly defined

rbuser — Thu, 13 Jul 2017 08:53:54 +0000

I'm running Delphi XE, RB 18.0 build 369, MySQL 5.7, and the Connector.ODBC 5.3. I have a template with a lot of views over in the data tab. There are 13 links to other tables. With those links in place, I get the message that the "Parameter object is improperly defined. Inconsistent or incomplete information was provided" when I go to preview. Apparently, some of these links are causing problems, as when I start removing those links, I can eventually get it to where I stop getting that error. Although it's distressingly inconsistent how many links I need to remove after reloading the template before it will 'successfully' run. So, is there some issue with too many linked tables? I apologize for the nebulous nature of the issue - it's been a pain trying to track down as well, and I haven't been able to rebuild the program in a way I can intercept the queries, due to not having the ra*.pas units to rebuild the RB units in debug.

Multiple instances of datamodule with report loadin .rtm file using wrong pipeline

rbuser — Thu, 23 Feb 2017 08:55:11 +0000

Hello, I have an issue where we have multiple instances of a datamodule that contains a TppReport a designer and pipelines. When loading a rtm file into the TppReport and then printing the report the pipeline being used by the report is from a different instance to the TppReport parent module. There are multiple pipelines in instantiated with the same pipeline name but with different parent instances. Is there already an accepted solution for this? Can make the load process use the pipelines from the TppReport parent in preference over other of the same name that exist? Thanks Steve

Query use in pipeline?

rbuser — Wed, 19 Oct 2016 06:12:02 +0000

Hello, Using RB 17.03 in Delphi 10.1. I am connecting my reports to a DBPipeline (SQLite) which contains a query. This seems to work better for me than connecting to the DB in the report designer and running the query there. Just because I want some calculated fields that need lots of freedom (various variable and data access) to calculate in the code of main program. That works, but gives a background to the question. I have a simple query that includes all the fields (regular and calculated) I need for about 20 or more reports. Now in each of those reports, I access the data detail in the designer. BEFORE I run the report in my delphi form, I re-run the same query - BUT depending on the report, with different sorts and filters than the original query used to set up the design. This WORKS, but my question is whether this is SAFE and efficient?? The reason I do it this way is that I need only one query in my datamodule to maintain, and then depending on which of many reports I run, I can change the filtration (WHERE clauses) and sort orders by re-stating the SQL text. Related question to the efficiency part - speed is not too bad, but am I running the entire query an extra time during run time? Would it help speed to add a WHERE clause to the query in the data module ensuring hardly any data is selected, since the real data selection occurs just before the report is run? Scott