Basemaps

This GeoBlazor sample, written in Blazor for .NET developers, demonstrates the various ways to configure a Basemap on a MapView or SceneView using GeoBlazor's Basemap, BasemapStyle, PortalItem, VectorTileLayer, and TileLayer Razor components, all built on top of the ArcGIS Maps SDK for JavaScript. Above the map is a vertical group of radio rows: Default Basemap (OpenStreetMap, no API key required), 2D Map Styles (a dropdown of every BasemapStyleName enum value applied to a MapView), 3D Scene Styles (the same enum applied to a SceneView), From Portal Id (a curated dropdown of ArcGIS Online basemap items such as Streets, Satellite, Hybrid, Topographic, Gray, Dark Gray, and Streets Night), and From Tile Layers (a custom basemap stitched together from a World Hillshade tile layer with a Forest and Parks vector tile layer overlaid at 75% opacity). Each row exposes its dropdown only when selected, and changing the selection refreshes the underlying MapView or SceneView with the new basemap. The sample is intended to demonstrate how to source basemaps from multiple ArcGIS providers in a Blazor application without writing JavaScript.