Unable to select parameters when SSRS 2008R2 report is deployed

Question

I have over one hundred reports deployed to a stand alone SSRS2008R2 server.  For almost all of the reports, the standard report parameters are:
DBName (an internal parameter used for an embedded connection string)
Date Range (pre-set date selections such as Last Week, Current Month, Last Quarter, etc)
Location (integer value)
Beginning Date
Ending Date (both dates use the output of Date Range as the default but can be overridden.
The reports have always deployed and have worked using these parameters and sometimes other parameters with no problems for years.  I just deployed a new report that uses the same 5 parameters that the other reports use and only those 5 parameters.
 The only difference is that instead of Location passing an integer value, it passes a text value (CHAR(8) specifically).  When the report is deployed to the server, the Date Range parameter appears and allows the user to select a Date Range but
none of the other parameters show any values and do not allow the user to select a value.  The odd thing is that if I change the DataSource to use a specific database and run it on Report Manager through Report Builder, it works fine.  When I run
it directly on Report Manager, it does not work.  It also does not work when run via the site it is deployed to.  I have run SQL Profiler and all it shows is that the stored procedure for the Date Range parameter is run successfully.  I also
cannot see anything telling in the Reporting Services log and there is nothing special about the ASP.NET code related to the report.  I have spent over 12 hours on this issue and am truly stumped.
Any ideas on how to fix this? This needs to fixed urgently.
Derrick

Answer 1

Hi DerrickVH,
According to your description, you have more than one hundred reports with 5 parameters in SSRS 2008 R2, the reports works fine. You deployed a new report to report server, it has same parameters except data type of location is text. When you run the report,
only Date Range parameter is displayed and allows users to select values from drop down list. If you specify a database and run the report use report builder, the report works fine.
In Reporting Services, we can use dynamic data source through an expression-based connection string. To troubleshoot this problem, please refer to the following steps:
The dynamic database connection string can only be used with an embedded data source, we could not use it with a shared data source.
Specify credentials separately from the connection string.
Make sure there is corresponding values for the parameters in the database.
Verify the connection string and values of parameter DBName is correct.
For more information about Expression-based on connection strings, please refer to the following document:
http://technet.microsoft.com/en-us/library/ms156450.aspx#Expressions
If the problem remain unresolved, i would appreciate it if you could give us detailed information of the report, it’s better to provide screenshot and sample data about the report in design surface, it will help us move more quickly toward a solution.
Best Regards,
Wendy Fu
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