WebMap

This GeoBlazor sample, written in Blazor for .NET developers, demonstrates loading a WebMap by PortalItem id from the ArcGIS Maps SDK for JavaScript exposed through GeoBlazor's WebMap, PortalItem, ScaleBarWidget, and LegendWidget Razor components. The page shows a 2D MapView loaded from a hosted ArcGIS Online WebMap, including all of the WebMap's preconfigured layers, icons, popups, and styling. A ScaleBarWidget appears in the lower-left corner of the map and a LegendWidget appears in the upper-right corner. Below the map a Layers heading is followed by a table that lists every Layer in the WebMap with its type, title, and a Features cell. For each FeatureLayer the Features cell starts with a Load Features button; clicking it issues a QueryFeatures call with where 1=1 and OutFields *, then replaces the button with a scrollable list of feature names extracted from each graphic's attributes. The sample is intended to demonstrate displaying a hosted WebMap and inspecting its layers and features in a Blazor application without writing JavaScript.