User`s guide
21.7 The Parameter Panel
The Parameter Panel lets users interactively format and filter report data by changing parameter values.
It is located within the Preview Panel.
In the Create New Parameter and Edit Parameter dialog boxes, you can specify parameters to display
on the Parameter Panel via the Show on (Viewer) Panel option. You can choose one of several settings:
• Do not show
The parameter is not visible on the panel. Users must refresh the report to change the parameter
values.
• Editable
Users can view and change the parameter values on the panel.
• Read only
Users can view the parameter values on the panel, but cannot change them.
Note:
Do not show is the default setting for a new parameter.
The Parameter Panel displays all parameters that have been set to Editable or Read only. Depending
on the type of parameter, users can add, delete, or modify parameter values either by using the dropdown
menus and applying their changes or by clicking the Advanced Dialog button.
The following are some of the more commonly used types of parameters that must be modified by
clicking the Advanced Dialog button:
• Parameters with ranged values.
• Dynamic parameters that use cascading prompts.
On the panel, data parameters are differentiated from non-data parameters with a database icon. When
a user modifies the value of a data parameter, the report refreshes and accesses the database to make
the corresponding changes. When a user modifies the value of a non-data parameter, the report is
formatted or filtered based on saved data within the report. It does not access the database.
21.8 Working with lists of values
Dynamic prompts use lists of values. You can create a list of values in either Crystal Reports or in the
Business View Manager. Crystal Reports refreshes the data in a list of values when you open a report
that contains a dynamic prompt; however, you can also refresh the data in a list of values by scheduling
it in the Business View Manager. For more information, see
Using Business Views
.
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Parameter Fields and Prompts