The purpose of shared filtering is to have the selected filter component or parameter component filter all the reports under the portlet in the same portlet, not just the current report.

Shared filter criteria: in the same portlet and bind the same data set.

Example of usage scenario: Integrate a series of reports into the portal, and hope to filter only on the first tab of the portal, and the subsequent reports will be filtered in the same way without repeated filtering.

Shared filtering can be done in the portlet, including the following three: grid component, label component, stack component.