List related features

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MAUI

UWP

WPF

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List features related to the selected feature.

Image of list related features

Use case

Related features are useful for managing relational information, like what you would store in a relational database management system (RDBMS). You can define relationship between records as one-to-one, one-to-many, or many-to-one. For example, you could model inspections and facilities as a many-to-one relationship. Then, for any facility feature, you could list related inspection features.

How to use the sample

Click on a feature to select it. The related features will be displayed in a list.

How it works

With a Feature, call QueryRelatedFeaturesAsync on the feature's feature table.
Iterate over the result's collection of RelatedFeatureQueryResult objects to get the related features and add them to a list.

Relevant API

ArcGISFeature
ArcGISFeatureTable
FeatureQueryResult
FeatureTable.QueryRelatedFeatures
RelatedFeatureQueryResult

Sample Code

ListRelatedFeatures.xaml

ListRelatedFeatures.xaml.cs

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﻿<UserControl
    x:Class="ArcGIS.UWP.Samples.ListRelatedFeatures.ListRelatedFeatures"
    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}">
            <StackPanel>
                <TextBlock Text="Tap a park (green) to see related features."
                           TextAlignment="Center" FontWeight="SemiBold"
                           Margin="0,0,0,10" />
                <ProgressBar x:Name="LoadingProgress"
                             IsIndeterminate="True"
                             Height="15"
                             Margin="0,0,0,10" Visibility="Visible" />
                <ListView x:Name="MyResultsView"
                          MaxHeight="300"
                          ScrollViewer.HorizontalScrollBarVisibility="Disabled"
                          SelectionMode="None">
                    <ListView.ItemTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding}" TextWrapping="Wrap" />
                        </DataTemplate>
                    </ListView.ItemTemplate>
                </ListView>
            </StackPanel>
        </Border>
    </Grid>
</UserControl>