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ArcGIS Runtime SDK for .NET

WMS layer (URL)

This code sample is available for these platforms:
View Sample on GitHub

Display a WMS layer using a WMS service URL.

Image of WMS layer URL

Use case

WMS is an OGC standard for displaying maps from images that are dynamically-generated on a web server. WMS is particularly useful for data that changes frequently, contains cartographically complex detail, or requires an open source data standard.

How to use the sample

The map will load automatically when the sample starts.

How it works

  1. Create a WmsLayer specifying the URL of the service and the names of layers you want to display.
    • Note: The name comes from the Name property, not the Title property. On many services, the title is human-readable while the name is a numeric identifier.
  2. Add the layer to the map as an operational layer.

Relevant API

  • Map
  • MapView
  • WmsLayer

About the data

This sample uses a U.S. National Weather Service radar map. Because WMS services generate map images on-the-fly, this layer is always up-to-date with the latest NOAA NEXRAD radar observations.


OGC, web map service, WmsLayer

Sample Code

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns=""
        <esriUI:MapView x:Name="MyMapView" />
// Copyright 2017 Esri.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at:
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
// language governing permissions and limitations under the License.

using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using System;
using System.Collections.Generic;
using Xamarin.Forms;

namespace ArcGISRuntime.Samples.WMSLayerUrl
        name: "WMS layer (URL)",
        category: "Layers",
        description: "Display a WMS layer using a WMS service URL.",
        instructions: "The map will load automatically when the sample starts.",
        tags: new[] { "OGC", "WmsLayer", "web map service" })]
    public partial class WMSLayerUrl : ContentPage
        // Hold the URL to the WMS service showing U.S. weather radar.
        private readonly Uri _wmsUrl = new Uri(

        // Hold a list of uniquely-identifying WMS layer names to display.
        private readonly List<string> _wmsLayerNames = new List<string> { "1" };

        public WMSLayerUrl()


        private void Initialize()
            // Create a map with basemap and initial viewpoint.
            Map myMap = new Map(Basemap.CreateLightGrayCanvas())
                // Set the initial viewpoint.
                InitialViewpoint = new Viewpoint(
                    new Envelope(-19195297.778679, 512343.939994, -3620418.579987, 8658913.035426, 0.0, 0.0, SpatialReferences.WebMercator))

            // Add the map to the mapview.
            MyMapView.Map = myMap;

            // Create a new WMS layer displaying the specified layers from the service.
            WmsLayer myWmsLayer = new WmsLayer(_wmsUrl, _wmsLayerNames);

            // Add the layer to the map.