umbraco-picker-data-source

To create a custom Umbraco picker data source, you define a manifest with UMB_PICKER_DATA_SOURCE_TYPE and implement a TypeScript controller. This controller supplies items for backoffice tree or collection property editors by handling requests for root items, children, and search queries.

Implementing tree picker search requires defining the search method alongside requestTreeRoot, requestTreeRootItems, requestTreeItemsOf, and requestTreeItemAncestors. These methods enable hierarchical browsing and query-based searching for custom entities within Umbraco property editors.

Yes, you can use custom entity types with Umbraco collection pickers by implementing the requestItems method. This function fetches and displays flat lists of custom entities, allowing editors to select items from external or filtered data sources.

You filter pickable items in an Umbraco tree picker by applying optional pickable filters within your custom data source implementation. This controls entity selection behavior by restricting which tree nodes can be selected in the backoffice property editor.

Yes, Umbraco picker data sources support hierarchical browsing by implementing requestTreeItemsOf to fetch child nodes. This allows editors to navigate nested custom entity structures and select items within tree-based backoffice property editors.

Yes, TypeScript is required to build a custom Umbraco picker data source. The implementation involves writing TypeScript controllers that fulfill the functional contract by defining manifests and handling data retrieval for backoffice property editors.