List features related to the selected feature.
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, callQueryRelatedFeaturesAsyncon the feature's feature table. - Iterate over the result's collection of
RelatedFeatureQueryResultobjects to get the related features and add them to a list.
Relevant API
- ArcGISFeature
- ArcGISFeatureTable
- FeatureQueryResult
- FeatureTable.QueryRelatedFeatures
- RelatedFeatureQueryResult
Tags
features, identify, query, related, relationship, search
Sample Code
<UserControl x:Class="ArcGISRuntime.WinUI.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 Margin="0,0,0,10"
FontWeight="SemiBold"
Text="Tap a park (green) to see related features."
TextAlignment="Center" />
<ProgressBar x:Name="LoadingProgress"
Height="15"
Margin="0,0,0,10"
IsIndeterminate="True"
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>