private void AddGroupChildLayers()
{
if (Layer is GroupLayerBase)
{
ObservableCollection<LayerItemViewModel> mapLayerItems = new ObservableCollection<LayerItemViewModel>();
if ((Layer as GroupLayerBase).ChildLayers != null)
{
foreach (Layer layer in (Layer as GroupLayerBase).ChildLayers.Where(l => l.ShowLegend))
{
Layer layerToFind = layer;
MapLayerItem mapLayerItem = LayerItems == null ? null : LayerItems.FirstOrDefault(item => item.Layer == layerToFind) as MapLayerItem;
if (mapLayerItem == null || mapLayerItems.Contains(mapLayerItem)) // else reuse existing map layer item to avoid querying again the legend and lose the item states (note : contains test if for the degenerated case where a layer is twice or more in a group layer)
{
// Create a new map layer item
mapLayerItem = new MapLayerItem(layer) { LegendTree = this.LegendTree, LayerItemsOptions = LegendTree.LayerItemsOptions};
if (_dispatcher != null)
_dispatcher.BeginInvoke(new Action(() => mapLayerItem.Refresh()));
else
mapLayerItem.Refresh();
}
mapLayerItems.Add(mapLayerItem);
}
}
LayerItems = mapLayerItems;
#if !SILVERLIGHT
// Don't display the AcceleratedDisplayLayers root node
if (Layer is AcceleratedDisplayLayers)
IsTransparent = true;
#endif
}
}
private void AddGroupChildLayers()
{
if (Layer is GroupLayer)
{
ObservableCollection<LayerItemViewModel> mapLayerItems = new ObservableCollection<LayerItemViewModel>();
if ((Layer as GroupLayer).ChildLayers != null)
{
foreach (Layer layer in (Layer as GroupLayer).ChildLayers)
{
Layer layerToFind = layer;
MapLayerItem mapLayerItem = LayerItems == null ? null : LayerItems.FirstOrDefault(item => item.Layer == layerToFind) as MapLayerItem;
if (mapLayerItem == null || mapLayerItems.Contains(mapLayerItem)) // else reuse existing map layer item to avoid querying again the legend and lose the item states (note : contains test if for the degenerated case where a layer is twice or more in a group layer)
{
// Create a new map layer item
mapLayerItem = new MapLayerItem(layer) { LegendTree = this.LegendTree };
if (_dispatcher != null)
_dispatcher.BeginInvoke(new Action(() => mapLayerItem.Refresh()));
else
mapLayerItem.Refresh();
}
mapLayerItems.Add(mapLayerItem);
}
}
LayerItems = mapLayerItems;
}
}
