A subscription mechanism is used to link filter components with chart components. The value set in a filter dynamically filters the data displayed in the chart components that subscribe to it.

Rationale Behind Using Subscriptions

The subscription mechanism provides enhanced flexibility in controlling which chart components are affected by the filter. In some scenarios, certain chart components on a report page may need to display data independently of the filter settings. For example, a “summary” component might always need to show a constant value regardless of the filter criteria. In such cases, this component should not subscribe to the filter.

Establishing a Subscription

1. Activate the Action Panel: Select the filter, then switch to the “Action” tab in the right-hand panel.

   

2. Configure the Subscriber: In the “Subscriber” dropdown, choose the chart component that you wish to subscribe to the filter.

   

Frequently Asked Questions

1. Can a filter subscribe to chart components that use a different analytical model? Yes, subscription is possible even if the filter and the chart components are based on different analytical models.

2. How are the model fields of the filter and the chart components matched?

   • The matching is based on the field captions: as long as the caption of the filter field is the same as that of the field used in the chart component’s model, the filter value will apply to the chart.
   • The system prioritizes matching based on the Unique Name. If there are two fields with the same caption (e.g., “Product”) in different dimensions, the field with a matching Unique Name will be filtered.

   Example:

   • Filter: Uses a field with the caption “Product” and Unique Name [Product].[Product Name].
   • Chart Component: Contains two fields with the caption “Product,” having Unique Names [Product].[Product Name] and [Sales order].[Product Name] respectively. In this case, the filter value will only affect the field with the Unique Name [Product].[Product Name].