Browse WFS layers

View inMAUIUWPWPFWinUIView on GitHub

Browse a WFS service for layers and add them to the map.

Image of browse WFS layers

Use case

Services often have multiple layers available for display. For example, a feature service for a city might have layers representing roads, land masses, building footprints, parks, and facilities. A user can choose to only show the road network and parks for a park accessibility analysis.

How to use the sample

A list of layers in the WFS service will be shown. Select a layer to display.

Some WFS services return coordinates in X,Y order, while others return coordinates in lat/long (Y,X) order. If you don't see features rendered or you see features in the wrong location, use the checkbox to change the coordinate order and reload.

How it works

  1. Create a WfsService object with a URL to a WFS feature service.
  2. Obtain a list of WfsLayerInfo from WfsService.ServiceInfo.
  3. When a layer is selected, create a WfsFeatureTable from the WfsLayerInfo.
    • Set the axis order if necessary.
  4. Create a feature layer from the feature table.
  5. Add the feature layer to the map.

Relevant API

  • FeatureLayer
  • WfsFeatureTable
  • WfsFeatureTable.AxisOrder
  • WfsLayerInfo
  • WfsService
  • WfsServiceInfo

About the data

The sample is configured with a sample WFS service, but you can load other WFS services if desired. The default service shows Seattle downtown features hosted on ArcGIS Online.

Tags

browse, catalog, feature, layers, OGC, service, web, WFS

Sample Code

BrowseWfsLayers.xamlBrowseWfsLayers.xamlBrowseWfsLayers.xaml.cs
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<UserControl
    x:Class="ArcGIS.UWP.Samples.BrowseWfsLayers.BrowseWfsLayers"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:esriUI="using:Esri.ArcGISRuntime.UI.Controls">
    <Grid>
        <esriUI:MapView x:Name="MyMapView" />
        <Border Style="{StaticResource BorderStyle}">
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto" />
                    <RowDefinition Height="Auto" />
                    <RowDefinition Height="Auto" />
                    <RowDefinition Height="*" />
                    <RowDefinition Height="Auto" />
                    <RowDefinition Height="Auto" />
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*" />
                    <ColumnDefinition Width="Auto" />
                </Grid.ColumnDefinitions>
                <TextBlock
                    Grid.Row="0"
                    Grid.ColumnSpan="2"
                    Margin="5"
                    FontWeight="Bold"
                    Foreground="Black"
                    Text="Load the service, then select a WFS layer for display."
                    TextAlignment="Center"
                    TextWrapping="Wrap" />
                <TextBox
                    x:Name="ServiceTextBox"
                    Grid.Row="1"
                    Grid.Column="0"
                    Margin="0,0,5,5" />
                <Button
                    x:Name="LoadServiceButton"
                    Grid.Row="1"
                    Grid.Column="1"
                    Margin="0,0,0,5"
                    Padding="5,0,5,0"
                    Click="LoadServiceButton_Click"
                    Content="Load service" />
                <ProgressBar
                    x:Name="LoadingProgressBar"
                    Grid.Row="2"
                    Grid.ColumnSpan="2"
                    Height="15"
                    Margin="0,5,0,5"
                    IsEnabled="True"
                    IsIndeterminate="True"
                    Visibility="Visible" />
                <ListView
                    x:Name="WfsLayerList"
                    Grid.Row="3"
                    Grid.ColumnSpan="2"
                    SelectionMode="Single">
                    <ListView.ItemTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding Title}" />
                        </DataTemplate>
                    </ListView.ItemTemplate>
                </ListView>
                <CheckBox
                    x:Name="AxisOrderSwapCheckbox"
                    Grid.Row="4"
                    Grid.ColumnSpan="2"
                    Margin="0,5,0,5"
                    Content="Swap coordinate order (try if nothing appears after load)" />
                <Button
                    x:Name="LoadLayersButton"
                    Grid.Row="5"
                    Grid.ColumnSpan="2"
                    Click="LoadLayers_Clicked"
                    Content="Load selected layer" />
            </Grid>
        </Border>
    </Grid>
</UserControl>

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