In 19.2, the PivotGridControl can operate in Optimized mode and use the Optimized Calculation Engine. The Optimized Calculation engine provides new functionality and improves performance but does not support legacy features.
Intermediate Level Aggregations use the summary function to calculate values for data obtained from the first specified data source column, group data by the next specified columns, and calculate group summaries.
Aggr functions can be nested and you can summarize aggregated data in an expression.
Window calculations use window functions to calculate data across a set of window rows related to the current row. Partitioning criteria are applied to rows to arrange them in partitions (a subset of rows in a data table).
The key concept of the Data Binding API is the data binding source. The Data Binding API does not divide PivotGrid fields into bound and unbound. The field's DataBinding property defines how the Pivot Grid field gets data. All functionality related to calculations are encapsulated into the data binding source - the DataBindingBase descendant that is assigned to the field's DataBinding property.
The Data Binding API is in effect only in Optimized Mode. Other calculation engines ignore the DataBinding property.