TChart in EndUser Environment

rbuser

?Trying to use the tchart component in the enduser environment. I can
drop a DBChart on the report, but can do nothing with it. I cant link it
to any data, or edit it. Am I missing something, like declarations in
the USES clause? If so, If I could get that list so I can drop in there,
that would be great. Thanks in advance for your help.

Jim Shepard

--- posted by geoForum on http://delphi.newswhat.com

nicocizik

Hi Jim,

You need to add ppChrtUI to your uses clause.

------------------------------------------------------------
Article: Controlling the End-User Environment
------------------------------------------------------------

If you are having difficulty getting the Data tab, the Calc tab, the
crosstab component or the TeeChart component to appear in your end-user
application, or you are trying to eliminate one of these capabilities from
the app, then this help topic is for you. The following paragraphs explain
the unit registration scheme used by ReportBuilder Pro, and how you can use
this scheme to get control over the feature set presented to your end-users.

In order to minimize the overhead in end-user reporting applications,
ReportBuilder employs a unit level registration scheme (similar to component
registration in Delphi.), whereby components and functionality can be added
at the discretion of the developer. In other words, you can control whether
the 'Data' workspace, the 'Calc' workspace or certain components appear in
your end-user reporting application simply by specifying or omitting certain
unit names from the uses clause of your main end-user reporting unit. The
advantage of this approach is that overhead associated with features such as
DADE, RAP or the crosstab component can be eliminated from your application
if you do not wish to pass these features along to the end-user. The
disadvantage is that you must manually add certain units to the uses clause
or these capabilities will not appear in the application.

In the end-user reporting demo project (located in the ...\RBuilder\Demos\1.
Report Explorer directory), the main unit is a form entitled myEURpt. At
the top of the unit for this form there is a series of conditional compiler
directives which, when enabled, cause certain functionality to appear in the
application. The conditional compiler directives in this unit are an
attempt to simplify the configuration of the demo application. However,
these directives do nothing more than add or omit certain unit names from
the uses clause of the form. The important thing to know is the unit names
and the functionality that including those unit names will provide. The
table below provides this information.



Unit Name Feature
---------- ---------------------------------------------------------------
daIDE DADE user-interface ('Data' tab)

raIDE RAP user-interface ('Calc tab)

ppCTDsgn User-interface for the configuration of the crosstab.
Normally the Crosstab Designer is displayed by accessing the
'Configure...' context menu option of a crosstab component.
If this unit is not included then this menu option is not
displayed.

myChkBox Checkbox components appear on the component palette when this unit
is
included. If you want to check out the source for these
components it
is in ...RBuilder Pro 4\Demos\RCL

ppChrtUI User-interface for editing charts. Normally the chart editor
is displayed by accessing the 'Edit...' context menu
option of a chart component.
If this unit is not included then this menu option is not
displayed.



ReportBuilder also uses the unit registration scheme to control which
database connectivity options are provided by the application. While
including the daDatMan unit will cause the 'Data' workspace to appear in the
Report Designer, that workspace will not be functional without a supporting
implementation. In ReportBuilder we call these implementations DADE
plug-ins. A DADE plug-in is nothing more than a Delphi unit which contains
the appropriate descendant class implementations needed by DADE to
communicate with a given database. Placing the data access implementation
in a separate unit gives us at least two benefits. One is that the user
interface is not tied to any specific database connectivity scheme. The
other is that the overhead associated with database support is limited to
the database connectivity products you are actually using. This means that
if you are using ADO to access your data, you need only include the daADO
unit in your uses clause and your application will use ADO only. Most
developers use DADE plug-ins to gain access to databases not supported by
the BDE, or to gain access to databases without the use of the BDE. The
following DADE plug-ins are provided with ReportBuilder Pro:

Unit Name Feature
---------- ----------
daDBBDE BDE support for the Query Wizard and Query Designer

daADO ADO support for the Query Wizard and Query Designer

daIBExpress Interbase Express support for the Query Wizard and Query
Designer.

daADS Advantage support.

daDOA Oracle support via the Direct Oracle Access components.

daODBC98 ODBC support via the ODBC98 components.

daIBO InterBase support via the InterBase Objects components.

daDBISAM DBISAM support.


You can use DADE plug-ins at Delphi design-time by generating a package
which contains one of these units and then installing it into Delphi. This
will allow you to use your preferred database product within the 'Data'
workspace at Delphi design-time. You can locate the various DADE plug-in
units in the ...\RBuilder\ Demos\EndUser Databases directories. A Delphi
package project has been provided for each DADE implementation so that you
can generate and install the plug-in at Delphi design-time. For more
information on how this can be done, see the ReadMe files in the EndUser
Databases directories.

Additional DADE Plug-ins are always being developed. Check the Digital
Metaphors web-site for the latest information (see the section
Friends:Data:DADE Plug-Ins.)

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Thanks Nico...that fixed that. But, although I get the editor for teechart,
I dont have any data. I dropped the DBChart on the report and the box you
would normally select the data from was still blank. My other data aware
components can select, but the DBChart cannot. Anything else I need to turn
on? Thanks again!

nicocizik

Hi Jay,

You control the data access for a DBChart by navigating to the Series | Data
Source tab in the chart editor. Then select DataPipeline from the drop down
box at the top.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

Thanks Nico. But I did try that and nothing shows up in that drop down. Like
I said, all the other data aware components access the datapipeline. But the
DBChart does not show any pipelines in that tab. Any ideas??

nicocizik

Hi Jay,

Which version of TeeChart are you using? This is not a known issue at
run-time.

--
Regards,

Nico Cizik
Digital Metaphors
http://www.digital-metaphors.com

rbuser

I am using TeeChart 7.04.

Jim Shepard

--- posted by geoForum on http://delphi.newswhat.com

nardmoseley

Make sure you are using TppDPTeeChart and not TppDBTeeChart. The DPTeeChart
enables series to connect to a datapipeline.

The DBTeeChart is retained for backward compabitily only. Do not use it.

The hints for each component say DBChart. To check which you are using, add
the chart to the report and check the object inspector.

rbuser

Nard,

Thanks for your quick response. I dont know if it is frustration or just
lack of sleep, but I am not sure where you are asking me to look for
this change. Can you give me a step-by-step response on how to find and
change this in the end user environment? Thanks again for all your help.


DPTeeChart
add

Jim Shepard

--- posted by geoForum on http://delphi.newswhat.com

nardmoseley

1. Add ppCtDsgn to the uses clause of your end-user application

2. Use the Data workspace to create a query dataview for the report

3. Add a TppDPTeeChart to the report. Position the mouse over the chart and
press the right mouse button, then select Edit from the popup menu.

4. Add a series to the chart.

5. Select the Series tab and select the DataSource tab to connect the series
to the datapipeline

rbuser

Thanks...that did it!!



and
series
just
help.
it.

Jim Shepard

--- posted by geoForum on http://delphi.newswhat.com

rbuser

On step 3 below, the only data chart control I have is a DBChart. My
application has the following in the Uses clause;

{$IFDEF ppTeeChart}
ppChrtdp,
{$ENDIF}


Windows, Classes, Controls, SysUtils, Forms, StdCtrls, ExtCtrls, Dialogs,
Graphics,
DB, DBTables, ppComm, ppCache, ppClass, ppProd, ppReport, ppRptExp,
ppBands,
ppEndUsr, ppDBPipe, ppDB, ppPrnabl, ppStrtch, ppDsgnDB,
ppRelatv, ppModule, Grids, DBGrids, ADODB, ppFormWrapper,
raCodMod,raIde,daDataDictionaryBuilder,
ppCtrls, ppChrt ;


What do I need to do to get it to use the datapipeline for the chart, so I
can edit the series, etc.?

rrr