How to Control Visibilty and Opacity from XAML

RobertPincus

How can I toggle the visibility and opacity of certain layers from XAML? I do not want to bind the controls to all the layers in the map, only some of them.

JenniferNery

You can use this SDK sample: http://help.arcgis.com/en/webapi/silverlight/samples/start.htm#LayerList and use a different LayerCollection for ItemsSource.

    <Grid x:Name="LayoutRoot" Background="White">
        <Grid.Resources>
            <esri:LayerCollection x:Key="MyLayers"/>
        </Grid.Resources>


<ListBox x:Name="MyList" ItemsSource="{StaticResource MyLayers}">


         public MainPage()
        {
            InitializeComponent();

            var layers = LayoutRoot.Resources["MyLayers"] as LayerCollection;
            foreach (var l in MyMap.Layers)
            {
                //only add layers you want to control visibility/opacity 
                layers.Add(l);
            }
        }