What type of list source is required when using virtual grids?

When utilizing virtual grids in Pega, the correct type of list source is a report definition. Virtual grids are designed to handle large datasets and they rely on the report definition to retrieve and display data dynamically.

Report definitions allow for efficient querying of data and can be configured to include filtering, sorting, and the ability to handle pagination. This is particularly important for virtual grids as they aim to enhance performance by loading only the necessary data on-demand instead of pre-loading all records at once.

Other data sources, like static local lists or property-based lists, do not offer the same level of dynamic data retrieval or scalability required for virtual grids. Static local lists are fixed and do not adapt to changing data, while property-based lists rely on predefined properties and do not provide the flexibility of querying large datasets. Dynamic data pages can be used in various contexts but are not specifically identified as the required source for virtual grids.

The ability of the report definition to handle large volumes of data efficiently is critical in scenarios where performance and user experience are paramount, making it the most suitable choice for virtual grids.