protected override void OnElementChanged(ElementChangedEventArgs <ListView> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
e.OldElement.ItemSelected -= OnElementItemSelected;
e.OldElement.ScrollToRequested -= OnElementScrollToRequested;
}
if (e.NewElement != null)
{
e.NewElement.ItemSelected += OnElementItemSelected;
e.NewElement.ScrollToRequested += OnElementScrollToRequested;
if (List == null)
{
List = new WListView
{
IsSynchronizedWithCurrentItem = false,
ItemTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["CellTemplate"],
HeaderTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["View"],
FooterTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["View"],
ItemContainerStyle = (Windows.UI.Xaml.Style)WApp.Current.Resources["FormsListViewItem"],
GroupStyleSelector = (GroupStyleSelector)WApp.Current.Resources["ListViewGroupSelector"]
};
// In order to support tapping on elements within a list item, we handle
// ListView.Tapped (which can be handled by child elements in the list items
// and prevented from bubbling up) rather than ListView.ItemClick
List.Tapped += ListOnTapped;
if (ShouldCustomHighlight)
{
List.SelectionChanged += OnControlSelectionChanged;
}
List.SetBinding(ItemsControl.ItemsSourceProperty, "");
}
// WinRT throws an exception if you set ItemsSource directly to a CVS, so bind it.
List.DataContext = new CollectionViewSource {
Source = Element.ItemsSource, IsSourceGrouped = Element.IsGroupingEnabled
};
#if !WINDOWS_UWP
var selected = Element.SelectedItem;
if (selected != null)
{
OnElementItemSelected(null, new SelectedItemChangedEventArgs(selected));
}
#endif
UpdateGrouping();
UpdateHeader();
UpdateFooter();
ClearSizeEstimate();
}
}
protected override void OnElementChanged(ElementChangedEventArgs <ListView> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
e.OldElement.ItemSelected -= OnElementItemSelected;
e.OldElement.ScrollToRequested -= OnElementScrollToRequested;
}
if (e.NewElement != null)
{
e.NewElement.ItemSelected += OnElementItemSelected;
e.NewElement.ScrollToRequested += OnElementScrollToRequested;
if (List == null)
{
List = new WListView
{
IsSynchronizedWithCurrentItem = false,
ItemTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["CellTemplate"],
HeaderTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["View"],
FooterTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["View"],
ItemContainerStyle = (Windows.UI.Xaml.Style)WApp.Current.Resources["FormsListViewItem"],
GroupStyleSelector = (GroupStyleSelector)WApp.Current.Resources["ListViewGroupSelector"]
};
List.IsItemClickEnabled = true;
List.ItemClick += OnListItemClicked;
List.SelectionChanged += OnControlSelectionChanged;
List.SetBinding(ItemsControl.ItemsSourceProperty, "");
}
// WinRT throws an exception if you set ItemsSource directly to a CVS, so bind it.
List.DataContext = new CollectionViewSource {
Source = Element.ItemsSource, IsSourceGrouped = Element.IsGroupingEnabled
};
#if !WINDOWS_UWP
var selected = Element.SelectedItem;
if (selected != null)
{
OnElementItemSelected(null, new SelectedItemChangedEventArgs(selected));
}
#endif
UpdateGrouping();
UpdateHeader();
UpdateFooter();
ClearSizeEstimate();
}
}
protected override void OnElementChanged(ElementChangedEventArgs <ListView> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
e.OldElement.ItemSelected -= OnElementItemSelected;
e.OldElement.ScrollToRequested -= OnElementScrollToRequested;
((ITemplatedItemsView <Cell>)e.OldElement).TemplatedItems.CollectionChanged -= OnCollectionChanged;
}
if (e.NewElement != null)
{
e.NewElement.ItemSelected += OnElementItemSelected;
e.NewElement.ScrollToRequested += OnElementScrollToRequested;
((ITemplatedItemsView <Cell>)e.NewElement).TemplatedItems.CollectionChanged += OnCollectionChanged;
if (List == null)
{
List = new WListView
{
IsSynchronizedWithCurrentItem = false,
ItemTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["CellTemplate"],
HeaderTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["View"],
FooterTemplate = (Windows.UI.Xaml.DataTemplate)WApp.Current.Resources["View"],
ItemContainerStyle = (Windows.UI.Xaml.Style)WApp.Current.Resources["FormsListViewItem"],
GroupStyleSelector = (GroupStyleSelector)WApp.Current.Resources["ListViewGroupSelector"]
};
List.SelectionChanged += OnControlSelectionChanged;
List.SetBinding(ItemsControl.ItemsSourceProperty, "");
}
ReloadData();
if (Element.SelectedItem != null)
{
OnElementItemSelected(null, new SelectedItemChangedEventArgs(Element.SelectedItem));
}
UpdateGrouping();
UpdateHeader();
UpdateFooter();
UpdateSelectionMode();
UpdateWindowsSpecificSelectionMode();
ClearSizeEstimate();
}
}
private void InitPivot()
{
var binding = new Binding { Source = ViewModel, Path = new PropertyPath("CurrentRecords") };
_itemTemplate = Resources["ListViewTemplate"] as DataTemplate;
foreach (var day in Enum.GetNames(typeof(DayOfWeek)))
{
var listView = new ListView
{
ItemTemplate = _itemTemplate,
IsItemClickEnabled = true
};
listView.ItemClick += ItemView_ItemClick;
listView.SetBinding(ItemsControl.ItemsSourceProperty, binding);
var pivotItem = new PivotItem { Header = day, Name = day, Content = listView };
pivot.Items.Add(pivotItem);
}
}
private ISemanticZoomInformation GetZoomedInView()
{
var view = new ListView
{
ItemTemplate = ItemTemplate,
GroupStyle = // ListView.GroupStyle is a collection, yes...
{
new GroupStyle
{
HeaderTemplate = GetGroupHeaderTemplate()
}
},
// HACK: The group header template contains a top margin, so we cancel the first one here
Padding = new Thickness( 0, ZoomedInViewTopMargin - ZoomedInGroupFooterSize, 0, 0 )
};
// Weird way CollectionViewSources have to be used
view.SetBinding
(
ListView.ItemsSourceProperty,
new Binding { Source = ItemsViewSource }
);
view.SetBinding
(
ListView.SelectedItemProperty,
new Binding { Source = this, Path = new PropertyPath( "SelectedItem" ) }
);
return view;
}
private ISemanticZoomInformation GetZoomedOutView()
{
var view = new ListView
{
ItemTemplate = GetGroupItemTemplate(),
Foreground = ZoomedOutForegroundBrush,
Background = ZoomedOutBackgroundBrush,
Padding = ZoomedOutViewPadding
};
// weird way CollectionViewSources have to be used
view.SetBinding
(
ListView.ItemsSourceProperty,
new Binding { Source = ItemsViewSource, Path = new PropertyPath( "CollectionGroups" ) }
);
view.SetBinding
(
ListView.SelectedItemProperty,
new Binding { Source = this, Path = new PropertyPath( "SelectedItem" ) }
);
return view;
}
