Group Layer Online

This sample shows the use of the GroupLayer to consolidate layers within a map. The map shown contains a tiled map service layer and a group layer. The sample shows a templated Legend and its support of GroupLayers. The legend's template supports toggling visibility of the layers within the GroupLayer.

XAML

<UserControl x:Class="ArcGISWPFSDK.GroupLayer"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:esri="http://schemas.esri.com/arcgis/client/2009">
    <Grid x:Name="LayoutRoot" Background="White">
        <Grid.Resources>
            <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" WrapAround="True" Background="#FFE3E3E3">
            <esri:Map.Extent>
                <esri:Envelope XMin="-15000000" YMin="2000000" XMax="-7000000" YMax="8000000" >
                    <esri:Envelope.SpatialReference>
                        <esri:SpatialReference WKID="102100"/>
                    </esri:Envelope.SpatialReference>
                </esri:Envelope>
            </esri:Map.Extent>
            <esri:ArcGISTiledMapServiceLayer ID="TopoMapLayer"
                    Url="http://services.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"/>
            <esri:GroupLayer ID="USA">
                <esri:FeatureLayer ID="Rivers"
                    Url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/1" Mode="OnDemand"/>
                <esri:FeatureLayer ID="Cities"
                    Url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/Specialty/ESRI_StatesCitiesRivers_USA/MapServer/0" Mode="OnDemand" />
            </esri:GroupLayer>
        </esri:Map>
        <Border Background="{StaticResource PanelGradient}" BorderThickness="1" CornerRadius="5"
            HorizontalAlignment="Right"  VerticalAlignment="Top"
            Margin="20" Padding="5" BorderBrush="Black" >
            <esri:Legend Map="{Binding ElementName=MyMap}" LayerItemsMode="Tree" LayerIDs="USA"
                         />
        </Border>
    </Grid>
</UserControl>

C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace ArcGISWPFSDK
{

    public partial class GroupLayer : UserControl
    {
        public GroupLayer()
        {
            InitializeComponent();
        }
    }
}

VB.NET

Imports System.Collections.Generic
Imports System.Linq
Imports System.Net
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Animation
Imports System.Windows.Shapes

Namespace ArcGISWPFSDK
    Partial Public Class GroupLayer
        Inherits UserControl
        Public Sub New()
            InitializeComponent()
        End Sub
    End Class

End Namespace