Bookmarks Widget

This GeoBlazor sample, written in Blazor for .NET developers, demonstrates the Bookmarks widget from the ArcGIS Maps SDK for JavaScript exposed through GeoBlazor's BookmarksWidget Razor component. The page shows a 2D web map of Atlantic hurricane tracks loaded from an ArcGIS Online WebMap PortalItem. In the upper-right corner of the map an ExpandWidget is opened by default to reveal a list of named hurricane bookmarks; each bookmark has a small thumbnail and can be reordered by drag, edited via a pencil button, or extended with the Add Bookmark button. Clicking a bookmark zooms the view to the saved extent and applies a FeatureEffect to the underlying FeatureLayerView, graying out all hurricanes whose Name does not match. Below the map a heading reads Bookmarks followed by a bulleted list that mirrors the widget's Bookmarks collection; the list is wired to the reactive bookmarks.after-add event so newly added bookmarks appear immediately. The sample is intended to demonstrate reactive collection binding and feature effect filtering in a Blazor application without writing JavaScript.