public PortalCollectionViewModel(INavigationService navigationService)
{
Messenger.Default.Register<ChangeIncremetalCollectionMessage>(this, msg =>
{
try
{
PortalItems = msg.ItemCollection;
CollectionTitle = PortalItems.Title;
CurrentCollection = PortalItems;
}
catch (Exception ex)
{
var _ = App.ShowExceptionDialog(ex);
}
});
Messenger.Default.Register<ChangePortalItemsCollectionMessage>(this, msg =>
{
try
{
MyMapsItems = msg.ItemCollection;
CollectionTitle = msg.Title;
CurrentCollection = MyMapsItems;
}
catch (Exception ex)
{
var _ = App.ShowExceptionDialog(ex);
}
});
Messenger.Default.Register<ChangeFavoritesCollectionMessage>(this, msg =>
{
try
{
CollectionTitle = msg.Title;
CurrentCollection = FavoritesService.CurrentFavoritesService.Favorites;
}
catch (Exception ex)
{
var _ = App.ShowExceptionDialog(ex);
}
});
Messenger.Default.Register<ChangePortalGroupsCollectionMessage>(this, msg =>
{
try
{
PortalGroups = msg.ItemCollection;
CollectionTitle = "Groups";
CurrentCollection = PortalGroups;
}
catch (Exception ex)
{
var _ = App.ShowExceptionDialog(ex);
}
});
// initialize ItemClick RelayCommand
ItemClickCommand = new RelayCommand<object>((e) =>
{
// handle the type of EventArgs passed
if (e == null) return;
ArcGISPortalItem portalItem = null;
if (e.GetType() == typeof(ArcGISPortalItem))
portalItem = e as ArcGISPortalItem;
// the GridView sends ItemClickEventArgs
else if (e.GetType() == typeof(ItemClickEventArgs))
portalItem = ((ItemClickEventArgs)e).ClickedItem as ArcGISPortalItem;
else if (e.GetType() == typeof(PointerRoutedEventArgs))
portalItem = ((PointerRoutedEventArgs)e).OriginalSource as ArcGISPortalItem;
if (portalItem != null)
{
//SelectedPortalItem = portalItem;
// send clicked item via a message to other ViewModels who
// are registered with ChangeItemSelectedMessage
Messenger.Default.Send<ChangeItemSelectedMessage>(new ChangeItemSelectedMessage() { Item = portalItem });
// use the navigation service to navigate to the page showing the item details
navigationService.Navigate(App.ItemPageName, portalItem);
}
else // check if it is a PortalGroup
{
ArcGISPortalGroup portalGroup = null;
// the GridView sends ItemClickEventArgs
if (e.GetType() == typeof(ItemClickEventArgs))
portalGroup = ((ItemClickEventArgs)e).ClickedItem as ArcGISPortalGroup;
if (portalGroup != null)
{
// send clicked item via a message to other ViewModels who
// are registered with ChangeGroupSelectedMessage
Messenger.Default.Send<ChangeGroupSelectedMessage>(new ChangeGroupSelectedMessage() { Group = portalGroup });
//Use the navigation service to navigate to the page showing the item details
navigationService.Navigate(App.GroupPageName);
}
}
});
}
