List of values not properly working in the selection screen.

Question

Dear Mates,
In BEx query all the selection parameters are working and showing all the list of values. Created the same report in crystal from BEx query, for one particular selection it is not showing the list of values or drop down. Just showing "DISCRETE VALUES"
Please throw some light on this.
Good day,
Regards
Arun S

Answer 1

Hi Arun,
I think you have more than one dynamic parameter created in your report.  There is a limitation on dynamic parameter list of values.  You will have to edit the registery to get all values in dynamic parameters list.
Find below is a knowledgebase article ;
Symptom
For performance reasons, in Crystal Reports XI Release 1 and Release 2 the maximum number of values that are returned for a list of values is set to 1000. If you have a cascading List of Values (for example Country > Region > City), the lowest level (in this case City) will only display a maximum of 1000 values. This means that the higher-level prompts may display far fewer values than you expect. The list of values provides the data for the dynamic parameter list.
How can you modify the maximum number of values available in a dynamic parameter list?
Resolution
To increase the maximum number of values available in a dynamic parameter list, you must add a registry key.
CAUTION
The following resolution involves editing the registry. Using the Registry Editor incorrectly can cause serious problems that may require you to reinstall the Microsoft Windows operating system. Use the Registry Editor at your own risk. For information on how to edit the registry key, view the 'Changing Keys and Values' online Help topic in the Registry Editor (Regedit.exe).
It is strongly recommended that you make a backup copy of the registry files (System.dat and User.dat on Win9x computers) before you edit the registry.
Crystal Reports XI Release 1
Create a registry key HKEY_LOCAL_MACHINE\SOFTWARE\Business Objects\Suite 11.0\Crystal Reports\DatabaseOptions\LOV.
NOTE
Alternatively, you can create the registry key HKEY_CURRENT_USER\SOFTWARE\Business Objects\Suite 11.0\Crystal Reports\DatabaseOptions\LOV and that key will override the settings of the HKEY_LOCAL_MACHINE\SOFTWARE\Business Objects\Suite 11.0\Crystal Reports\DatabaseOptions\LOV key.
Add a string value "MaxRowsetRecords" and set the value to the maximum number of values that you desire for your report. For example, a value of 2000 will return up to 2000 values in the lowest level of a cascading parameter. NOTE: The value 0 (Unlimited) will not work with BusinessObjects Enterprise XI or Crystal Reports Server XI, you must specify another value.
NOTE
The higher the number of values is, the longer it will take the Enter Values dialog box to populate with values.
After making changes to the registry, restart the affected service or application as required.
Crystal Reports XI Release 2
Create a registry key HKEY_LOCAL_MACHINE\SOFTWARE\Business Objects\Suite 11.5\Crystal Reports\DatabaseOptions\LOV.
NOTE
Alternatively, you can create the registry key HKEY_CURRENT_USER\SOFTWARE\Business Objects\Suite 11.5\Crystal Reports\DatabaseOptions\LOV and that key will override the settings of the HKEY_LOCAL_MACHINE\SOFTWARE\Business Objects\Suite 11.5\Crystal Reports\DatabaseOptions\LOV key.
Add a string value "MaxRowsetRecords" and set the value to the maximum number of values that you desire for your report. For example, a value of 2000 will return up to 2000 values in the lowest level of a cascading parameter.
NOTE
The value 0 (Unlimited) will not work with BusinessObjects Enterprise XI or Crystal Reports Server XI, you must specify another value.
After making changes to the registry, restart the affected service or application as required.
Thanks,
Sastry