Report Packs and SQL Server Express

I am trying to use the IISLog report packs with SQL Server Express reporting services. The guidance in http://blogs.msdn.com/sqlexpress/ indicates that I need to change the target URL and the connection string so that the report packs work with SQL Express. I cannot see how to centrally change the connection string, so that it will affect all the Datasets in the report project. If I try and open a report page and click on the Data tab I get the following error.

A connection cannot be made to the database.
Set and test the connection string.

An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) (Microsoft SQL Server, Error: 2)

I have seen this error before when I have mistakenly used "data source=(local); initial catalog=AdventureWorks" instead of "data source=.\SQLExpress; initial catalog=AdventureWorks" as a connection string when creating a new Dataset.

How can I get the IISLog report pack to work with SQL Express?

The Readme.doc file provided with the samples provide two options for deploying the reports. Option 2, using the Report Manager actually gives instructions on how to correctly create a new datasource and then point the uploaded reports to that datasource. I'll leave you to review the readme if you're using this method.

Option 1, describing using Business Intellegence Development Studio (BIDS) doesn't actually address modifying the datasource, so I'll cover that here. If you're using an all Express system, you'll need to have the following installed to do this:

SQL Express Advanced|||need to add another quickstart tutorial for this subject matter because installation on a winxp pro sp2 machine isn't yielding ability to deploy reports to sqlexpress.

The problem is how to configure the report server. seems the report designer will create a report and has ability to preview it, but cannot connect to server for deployment after the build.

Even though I can connect to the server after I go through the report server configuration tool setup.

==================================error
TITLE: Microsoft Report Designer

A connection could not be made to the report server http://localhost/ReportServer$SQLExpress.

ADDITIONAL INFORMATION:

Client found response content type of '', but expected 'text/xml'.
The request failed with an empty response. (Microsoft.ReportingServices.Designer)

================================error

Your above guidelines are not specifically applicable to IIs 5.1, as there is no " IISDatabase.rds Data Source listed under the Shared Data Sources folder"

|||I'm having the exact same inability to deploy report to SQL Server 2005 on an XP system. Using http:/localhost/ReportServer and receive "Object reference not set to an instance of an object"