Selecting a FeatureLayer

This sample demonstrates selecting individual features, using a rectangle, in a local feature layer. Buttons for selecting new features, adding more features to the existing selection set, removing features from the existing selection set, and clearing all the features in the selection set are provided. The 'Keyboard' button enables the use of keyboard shortcuts to select features. Hold the Ctrl key and drag mouse to add new features to existing selection. Hold the Shift key and drag mouse to remove features from existing selection. Points in the FeatureLayer are rendered using a SimpleRenderer with a specified SimpleMarkerSymbol. MapTips on the FeatureLayer are provided to display attributes for a particular feature when the mouse is hovered over a selection.

XAML

<UserControl x:Class="ArcGISWPFSDK.LocalFeatureLayerSelection"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:esri="http://schemas.esri.com/arcgis/client/2009">
    <Grid x:Name="LayoutRoot">
        <Grid.Resources>
            <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter"/>
            <esri:SimpleRenderer x:Key="MySimplePolygonRenderer">
                <esri:SimpleRenderer.Symbol>
                    <esri:SimpleFillSymbol Fill="#440000FF"/>
                </esri:SimpleRenderer.Symbol>
            </esri:SimpleRenderer>
            <esri:SimpleRenderer x:Key="MySimplePointRenderer">
                <esri:SimpleRenderer.Symbol>
                    <esri:SimpleMarkerSymbol Color="Yellow" />
                </esri:SimpleRenderer.Symbol>
            </esri:SimpleRenderer>
            <esri:Editor x:Key="MyEditor" LayerIDs="Cities"
             SelectionMode="Rectangle" />
            <LinearGradientBrush x:Key="PanelGradient" EndPoint="0.5,1" StartPoint="0.5,0">
                <LinearGradientBrush.RelativeTransform>
                    <TransformGroup>
                        <ScaleTransform CenterY="0.5" CenterX="0.5"/>
                        <SkewTransform CenterY="0.5" CenterX="0.5"/>
                        <RotateTransform Angle="176" CenterY="0.5" CenterX="0.5"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </LinearGradientBrush.RelativeTransform>
                <GradientStop Color="#FF145787" Offset="0.16"/>
                <GradientStop Color="#FF3D7FAC" Offset="0.502"/>
                <GradientStop Color="#FF88C5EF" Offset="0.984"/>
            </LinearGradientBrush>
        </Grid.Resources>
        <esri:Map x:Name="MyMap" esri:Editor.SnapDistance="0" Loaded="MyMap_Loaded"  WrapAround="True" Extent="-15000000,2000000,-7000000,8000000" Background="#FFE3E3E3" MinimumResolution="2445.98490512499">
            <esri:Map.Layers>
                <esri:ArcGISLocalTiledLayer ID="TopoMapLayer"
                  Path="..\\Data\\TPKs\\Topographic.tpk"/>
                <esri:ArcGISLocalDynamicMapServiceLayer Path="..\\Data\\MPKS\\USCitiesStates.mpk"/>
                <esri:ArcGISLocalFeatureLayer ID="Cities" LayerName="Cities" Mode="SelectionOnly" 
                   Path="..\\Data\\MPKS\\USCitiesStates.mpk"        
                    Renderer="{StaticResource MySimplePointRenderer}"            
                    OutFields="*">
                    <esri:ArcGISLocalFeatureLayer.MapTip>
                        <Border CornerRadius="10" BorderBrush="#FF222957" Background="AliceBlue" 
                            BorderThickness="3" Margin="0,0,15,15">
                            <Border.Effect>
                                <DropShadowEffect ShadowDepth="10" BlurRadius="14" Direction="300" />
                            </Border.Effect>
                            <StackPanel Margin="7">
                                <StackPanel Orientation="Horizontal">
                                    <TextBlock Text="Population: " Foreground="Black" />
                                    <TextBlock Text="{Binding [POP2010]}" Foreground="Black" />
                                </StackPanel>
                            </StackPanel>
                        </Border>
                    </esri:ArcGISLocalFeatureLayer.MapTip>
                </esri:ArcGISLocalFeatureLayer >
            </esri:Map.Layers>
        </esri:Map>

        <StackPanel  x:Name="EditorToolStrip" Margin="0,5,5,0" DataContext="{StaticResource MyEditor}">
            <Border Background="{StaticResource PanelGradient}" BorderThickness="1" CornerRadius="5"
                        HorizontalAlignment="Right"  VerticalAlignment="Top"
                        Padding="5" BorderBrush="Black">
                <Border.Effect>
                    <DropShadowEffect Color="Black" Direction="-45" BlurRadius="20" Opacity=".75" />
                </Border.Effect>
                <StackPanel x:Name="EditorTools" Orientation="Horizontal">
                    <Button x:Name="SelectButton" Margin="2" Foreground="Black"
                            Content="New" 
                            Command="{Binding Select}" 
                            CommandParameter="New">
                    </Button>
                    <Button x:Name="AddSelectButton" Margin="2"  Foreground="Black"
                            Content="Add" 
                            Command="{Binding Select}" 
                            CommandParameter="Add">
                    </Button>
                    <Button x:Name="RemoveSelectButton" Margin="2"  Foreground="Black"
                            Content="Remove"
                            Command="{Binding Select}"
                            CommandParameter="Remove"
                            >
                    </Button>
                    <Button x:Name="EnableKeyboardButton" Margin="2"  Foreground="Black"
                            Content="Keyboard"
                            Command="{Binding Select}"
                            CommandParameter="Keyboard"
                            >
                    </Button>
                    <Button x:Name="ClearSelectionButton" Margin="2" Foreground="Black"
                            Content="Clear"
                            Command="{Binding ClearSelection}"
                            >
                    </Button>
                </StackPanel>
            </Border>
        </StackPanel>
        <Grid HorizontalAlignment="Left" VerticalAlignment="Top" Margin="10,10,10,0" >
            <Rectangle Fill="{StaticResource PanelGradient}" Stroke="Gray"  RadiusX="10" RadiusY="10" Margin="0,0,0,5">
                <Rectangle.Effect>
                    <DropShadowEffect/>
                </Rectangle.Effect>
            </Rectangle>
            <Rectangle Fill="#DDFFFFFF" Stroke="DarkGray" RadiusX="5" RadiusY="5" Margin="10,10,10,15" />
            <TextBlock x:Name="ResponseTextBlock" Text="The local feature layer is in SelectionOnly mode.  Use the selection tools to select/unselect features. Selections are displayed as client graphics in the local feature layer. When Keyboard is activated use the mouse to select new features.  Hold the Ctrl key and drag mouse to add new features to existing selection.  Hold the Shift key and drag mouse to remove features from existing selection." 
                 Width="200" TextAlignment="Left" Margin="30,20,20,30" TextWrapping="Wrap" Foreground="Black" />
        </Grid>
        <ProgressBar x:Name="MyProgressBar" IsIndeterminate="True" VerticalAlignment="Bottom" Width="200" Height="20" Margin="10" Visibility="{Binding Path=IsBusy, Converter={StaticResource BooleanToVisibilityConverter}}"></ProgressBar>
    </Grid>
</UserControl>

C#

using System.Windows;
using System.Windows.Controls;
using System.ComponentModel;

namespace ArcGISWPFSDK
{
    public partial class LocalFeatureLayerSelection : UserControl, INotifyPropertyChanged
    {
        public event PropertyChangedEventHandler PropertyChanged;

        private bool _isBusy = true;

        public bool IsBusy
        {
            get
            {
                return _isBusy;
            }
            set
            {
                _isBusy = value;

                if (PropertyChanged != null)
                {

                    PropertyChanged(this, new PropertyChangedEventArgs("IsBusy"));
                }
            }
        }    
        public LocalFeatureLayerSelection()
        {
            InitializeComponent();

            DataContext = this;

            MyMap.Layers.LayersInitialized += (o, evt) =>
            {
                IsBusy = false;

            };

        }
        private void MyMap_Loaded(object sender, RoutedEventArgs e)
        {
            ESRI.ArcGIS.Client.Editor myEditor = LayoutRoot.Resources["MyEditor"] as ESRI.ArcGIS.Client.Editor;
            myEditor.Map = MyMap;
        }
    }
}

VB.NET

Imports System.Windows
Imports System.Windows.Controls
Imports System.ComponentModel

Namespace ArcGISWPFSDK
    Partial Public Class LocalFeatureLayerSelection
        Inherits UserControl
        Implements INotifyPropertyChanged
        Public Event PropertyChanged As PropertyChangedEventHandler Implements INotifyPropertyChanged.PropertyChanged
        Private _isBusy As Boolean = True
        Public Property IsBusy() As Boolean
            Get
                Return _isBusy
            End Get
            Set(value As Boolean)
                _isBusy = value

                RaiseEvent PropertyChanged(Me, New PropertyChangedEventArgs("IsBusy"))
            End Set
        End Property
        Public Sub New()
            InitializeComponent()
            AddHandler MyMap.Layers.LayersInitialized, AddressOf map_LayersInitialized
        End Sub
        Private Sub MyMap_Loaded(sender As Object, e As RoutedEventArgs)
            Dim myEditor As ESRI.ArcGIS.Client.Editor = TryCast(LayoutRoot.Resources("MyEditor"), ESRI.ArcGIS.Client.Editor)
            myEditor.Map = MyMap
        End Sub
        Private Sub map_LayersInitialized(sender As Object, e As EventArgs)
            DataContext = Me
            IsBusy = False
        End Sub
    End Class
End Namespace