Abstract: A scrollable container view renders hierarchically arranged layouts. Container items are only created and rendered to cover a view port on a user interface display screen, along with a buffer on each side of the view port. As the user pans or scrolls through the container, additional user interface items for the container are dynamically created and rendered.

Abstract: Providing persisting search folders within a computer that continuously identify data items having metadata matching a query of search criteria. A query of search criteria formulated via a graphical user interface is applied to a search filter to create a search folder. When the search folder is made live, the search filter is used to search one or more data stores for data items having metadata matching the query of search criteria. Upon finding these data items, the search folder is populated with a link to each data item having metadata matching the query of search criteria. The search folder detects when any new data items are added to a data store and when a change occurs to any metadata of data items previously stored in a data store. Upon detection, the search folders store links to matching new or changed data items.