Open table of contents with layers expanded

[Swani_Jesus_Captonsiluvairajan]

Is there a way to open the Table of contents [out of the box] that comes with the viewer to open the layers with the list expanded ?

[Swani_Jesus_Captonsiluvairajan]

Any info ?

[PietaSwanepoel2]

I have written a behavior that expands the Map Contents on load

Also play around with the settings for
Tools -> Configure Controls -> Map Contents -> Check Expand Layers on Add

Behavior code:

using System.ComponentModel.Composition;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Interactivity;
using System.Windows.Media.Animation;
using ESRI.ArcGIS.Client;
using ESRI.ArcGIS.Client.Extensibility;

namespace MyBehaviour.Panels
{
    [Export(typeof(Behavior<Map>))]
    [DisplayName("Show Hide Map Content Panel")]
    [Category("Behaviors")]
    [Description("Display Map Content Panel on load")]
    public class MapContentBehavior : Behavior<Map>
    {
        #region Behavior Overrides
        protected override void OnAttached()
        {
            base.OnAttached();

            MapApplication.Current.Map.Loaded += Map_Loaded;
        }

        protected override void OnDetaching()
        {
            MapApplication.Current.Map.Loaded -= Map_Loaded;
        }
        #endregion

        #region Events
        void Map_Loaded(object sender, RoutedEventArgs e)
        {
            // Find SidePanel
            TabControl sidePanel = MapApplication.Current.FindObjectInLayout("SidePanelContainer") as TabControl;
            if (sidePanel != null)
            {
                TabItem tab = null;
                int customControlPanelIndex = -1;

                // Get the index of the tab in the side panel that contains our control
                for (int i = 0; i < sidePanel.Items.Count; i++)
                {
                    tab = sidePanel.Items as TabItem;
                    if (tab.Name == "MapContentsTabItem")
                    {
                        customControlPanelIndex = i;
                        break;
                    }
                }

                Storyboard storyBoard;
                // Check whether the control needs to be shown or hidden
                if (sidePanel.SelectedIndex != customControlPanelIndex || sidePanel.Visibility == Visibility.Collapsed)
                {
                    // Update the side panel's selected index to set the tab containing the control to be the selected one.
                    sidePanel.SelectedIndex = customControlPanelIndex;

                    // Check whether the side panel is visible at all.  If not, it needs to be shown
                    if (sidePanel.Visibility == Visibility.Collapsed)
                    {
                        // Check whether the side panel has a visual state called Show.  If so, we'll show the side
                        // panel by invoking the storyboard from this state.
                        storyBoard = VisualStateManagerHelper.FindVisualStateStoryboard(sidePanel, null, "Show", true);
                        if (storyBoard != null)
                            storyBoard.Begin();
                        else // The side panel does not have a Show state, so set the panel's visibility directly
                            sidePanel.Visibility = Visibility.Visible;
                    }
                }
                else
                {
                    // The toggle button is being clicked when the control is already visible.  So the click should hide it.

                    // Check whether the side panel has a visual state called Hide.  If so, we'll hide the side
                    // panel by invoking the storyboard from this state.
                    storyBoard = VisualStateManagerHelper.FindVisualStateStoryboard(sidePanel, null, "Hide", true);
                    if (storyBoard != null)
                        storyBoard.Begin();
                    else // The side panel does not have a Hide state, so set the panel's visibility directly
                        sidePanel.Visibility = Visibility.Collapsed;
                }
            }
        }
        #endregion
    }
}