DPE Error on Report Server

We have created a DPE that returns data from a Web Services and uses it as
the datasource in the reports. We have changed the config files and added
the code group also added the name to the data section of the
rsreportserver.config file. We have strong named the dll and added it to the
GAC. The report runs fine in debug designer mode but will not run through
the report server or report manager. We get the following error.
An error has occurred during report processing. (rsProcessingAborted) Get
Online Help
An attempt has been made to use a data extension 'ISIS WS Data' that is not
registered for this report server. (rsDataExtensionNotFound) Get Online HelpCheck the documentation about how to deploy a similar DPE.
[WebService Data Processing Extension]
http://www.rdlcomponents.com/DTE/default.aspx
Thanks
Jerry
"Deb Taylor" wrote:
> We have created a DPE that returns data from a Web Services and uses it as
> the datasource in the reports. We have changed the config files and added
> the code group also added the name to the data section of the
> rsreportserver.config file. We have strong named the dll and added it to the
> GAC. The report runs fine in debug designer mode but will not run through
> the report server or report manager. We get the following error.
> An error has occurred during report processing. (rsProcessingAborted) Get
> Online Help
> An attempt has been made to use a data extension 'ISIS WS Data' that is not
> registered for this report server. (rsDataExtensionNotFound) Get Online Help
>|||I did all that I'm now getting a 401 unauthorized error.
"Jerry" wrote:
> Check the documentation about how to deploy a similar DPE.
> [WebService Data Processing Extension]
> http://www.rdlcomponents.com/DTE/default.aspx
> Thanks
> Jerry
> "Deb Taylor" wrote:
> > We have created a DPE that returns data from a Web Services and uses it as
> > the datasource in the reports. We have changed the config files and added
> > the code group also added the name to the data section of the
> > rsreportserver.config file. We have strong named the dll and added it to the
> > GAC. The report runs fine in debug designer mode but will not run through
> > the report server or report manager. We get the following error.
> >
> > An error has occurred during report processing. (rsProcessingAborted) Get
> > Online Help
> > An attempt has been made to use a data extension 'ISIS WS Data' that is not
> > registered for this report server. (rsDataExtensionNotFound) Get Online Help
> >|||Generally this error message means you need to log on (enter a valid user ID
and password) somewhere first. If you have just entered these and then
immediately see a 401 error, it means that one or both of your user ID and
password were invalid for whatever reason (entered incorrectly, user ID
suspended etc.).
Jerry
--
[Call a WebService from SQL Server 2000]
www.rdlcomponents.com
"Deb Taylor" wrote:
> I did all that I'm now getting a 401 unauthorized error.
> "Jerry" wrote:
> > Check the documentation about how to deploy a similar DPE.
> >
> > [WebService Data Processing Extension]
> > http://www.rdlcomponents.com/DTE/default.aspx
> >
> > Thanks
> > Jerry
> >
> > "Deb Taylor" wrote:
> >
> > > We have created a DPE that returns data from a Web Services and uses it as
> > > the datasource in the reports. We have changed the config files and added
> > > the code group also added the name to the data section of the
> > > rsreportserver.config file. We have strong named the dll and added it to the
> > > GAC. The report runs fine in debug designer mode but will not run through
> > > the report server or report manager. We get the following error.
> > >
> > > An error has occurred during report processing. (rsProcessingAborted) Get
> > > Online Help
> > > An attempt has been made to use a data extension 'ISIS WS Data' that is not
> > > registered for this report server. (rsDataExtensionNotFound) Get Online Help
> > >

Don't want output file if there are no rows returned

I'm using a simple data flow to extract rows from a table (using a SQL query) and put them in a flat file. If the query returns no rows, I don't want a file to be created. Right now it creates a file with the headers (since I do want the headers if there is data).

Any one know how to do this?

Kevin

Kevin,

Unfortunately I don't think there is any way around this. The workaround is to check to see if any rows were inserted (put a ROWCOUNT component immediately prior to the flat file destination adapter). If NumberOfRows=0, delete the resultant file.

-Jamie

|||

I did get it to work as Jamie suggests. For others who are trying to do the same, I'll post my solution below.

* At the Control Flow level, create a Sequence Container

* Place a Data Flow task in the Container

* Create a variable (called RowCounter of type Int32)

* Within the Data Flow Task, I have four objects in this order: 1) a Data Flow Source (such as OLE DB), 2) a Transformation (such as Copy Column), 3) the Row Count Transformation, and 4) a Data Flow Destination (such as Flat File).

* The Row Count Transformation is set up with the variable RowCounter

* Now back at the Control Flow level, place a File System Task in the Sequence Container

* Connect the Precedence Constraint from the Data Flow to the File System Task

* Open the properties of the Precedence Constraint and set the Evaluation Operator to "Expression and Constraint", the Value to "Success", and the Expression to "RowCounter == 0"

* Finally set the properties of the File System Task as follows: Operation = "Delete File" and Source Connection to the name of the File Connection that you used in the Data Flow Task.