LinkDADEPipetoJITPipe

rbuser

Nard:
In trying to understand how to extend dataviews in DADE [not having much
success], I noted that an old thread had some examples

The following examples should get you on the right track. Hope they help.

http://www.digital-metaphors.com/tips/LinkDADEPipeToStandardPipe.zip

http://www.digital-metaphors.com/tips/LinkStandardPipeToDADEPipe.zip


However, I cannot access these files, nor the tips directory on the DM
website.

At this point [time constraint] I am thinking that if I can link my JIT
Detail pipe to the DADE Master pipe then all the fiedls in the JIT pipe will
be exposed.

Trying to encapsulate the the Master/Detail pipes inside a
class(TdaADOQueryDataView) is not working so well for me. The Dataview is
not showing up in the DADE.

I am creating the TADOTable, TdataSource, TppDBPipeline.

However, the TADOTable.Connection cannot be assigned, since the
TADOConnection object I have is not in scope . So, it is not clear how to
assign the Connection

nardmoseley

1. If I click on those links, I can download the files. (We have security
that prevents browsing of the tips directory).

2. You can link a DADE pipeline to an external pipeline, however only the
Dade query dataview will appear in the Data workspace.

3. The Data tree in the Report Designer can show external datapipelines that
appear on the same form or a datamodule. Try making the Owner of the
JITPipeline the same owner as the Report.Owner.





--
Nard Moseley
Digital Metaphors Corporation
http://www.digital-metaphors.com

rbuser

Nard;
1. I downloaded the files. Was some kind of Browser security.

2. It remains a mystery as to why I cannot get my JITpipeline to show up in
the
DataModule. {steep curve]. I am wrapping it up in a TdaCustomDataView
descendant.
The daRegisterDataView (TdvRetData); is being called, bu tthe class does
not show up in the DADE->New

3. The internals of the TdvRetData = class (TdaCustomDataView) are simply
the JIT pipeline, which is created, and all the overrides are implemented
class function ClassDescription: String; override;

procedure CreateDataPipelines; override;
procedure CreatePipelineFields(aDataPipeline: TppDataPipeline);
override;

procedure ConnectPipelinesToData; override;
procedure ConnectReportToPipelines;override;

The JITPipeline has not datasource or table.

Phil

nardmoseley

Any dataview template classes that you create, need to override the
IsTemplate class function and return True. That might be one reason why they
do not show up. See TdaADOTemplateDataView in daADOTemplateDataView.pas in
the example that is available for download (see my post to your question
about ADO custom dataview examples).




--
Nard Moseley
Digital Metaphors Corporation
http://www.digital-metaphors.com