public PropertyItemsControl()
{
#if !NET40
VirtualizingPanel.SetIsVirtualizingWhenGrouping(this, true);
VirtualizingPanel.SetScrollUnit(this, ScrollUnit.Pixel);
#endif
}
private void CustomListView_Loaded(object sender, RoutedEventArgs e)
{
_scrollViewer = VisualSearchHelper.GetChildObject <ScrollViewer>(this, string.Empty);
ScrollViewer.SetHorizontalScrollBarVisibility(this, ScrollBarVisibility.Disabled);
ScrollViewer.SetCanContentScroll(this, true);
VirtualizingPanel.SetIsVirtualizing(this, true);
//设置ScrollUnit
ScrollUnit scrollUnit;
switch (CustomSlidingMode)
{
case SlidingModeType.Pixel:
scrollUnit = ScrollUnit.Pixel;
break;
case SlidingModeType.Row:
scrollUnit = ScrollUnit.Item;
break;
default:
scrollUnit = ScrollUnit.Pixel;
break;
}
VirtualizingPanel.SetScrollUnit(this, scrollUnit);
}
protected override void OnElementChanged(ElementChangedEventArgs <ListView> e)
{
if (e.OldElement != null) // Clear old element event
{
e.OldElement.ItemSelected -= OnElementItemSelected;
e.OldElement.ScrollToRequested -= OnElementScrollToRequested;
var templatedItems = ((ITemplatedItemsView <Cell>)e.OldElement).TemplatedItems;
templatedItems.CollectionChanged -= OnCollectionChanged;
templatedItems.GroupedCollectionChanged -= OnGroupedCollectionChanged;
}
if (e.NewElement != null)
{
e.NewElement.ItemSelected += OnElementItemSelected;
e.NewElement.ScrollToRequested += OnElementScrollToRequested;
if (Control == null) // Construct and SetNativeControl and suscribe control event
{
var listView = new WList
{
DataContext = Element,
ItemTemplate = (System.Windows.DataTemplate)System.Windows.Application.Current.Resources["CellTemplate"],
Style = (System.Windows.Style)System.Windows.Application.Current.Resources["ListViewTemplate"]
};
VirtualizingPanel.SetVirtualizationMode(listView, VirtualizationMode.Recycling);
VirtualizingPanel.SetScrollUnit(listView, ScrollUnit.Pixel);
SetNativeControl(listView);
Control.MouseUp += OnNativeMouseUp;
Control.KeyUp += OnNativeKeyUp;
Control.TouchUp += OnNativeTouchUp;
Control.StylusUp += OnNativeStylusUp;
}
// Suscribe element events
var templatedItems = TemplatedItemsView.TemplatedItems;
templatedItems.CollectionChanged += OnCollectionChanged;
templatedItems.GroupedCollectionChanged += OnGroupedCollectionChanged;
// Update control properties
UpdateItemSource();
UpdateHorizontalScrollBarVisibility();
UpdateVerticalScrollBarVisibility();
if (Element.SelectedItem != null)
{
OnElementItemSelected(null, new SelectedItemChangedEventArgs(Element.SelectedItem, -1));
}
}
base.OnElementChanged(e);
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
ControlGameView = Template.FindName("PART_ControlGameView", this) as Control;
if (ControlGameView != null)
{
BindingTools.SetBinding(ControlGameView,
Control.DataContextProperty,
mainModel,
nameof(DesktopAppViewModel.SelectedGameDetails));
}
ListGames = Template.FindName("PART_ListGames", this) as ExtendedListBox;
if (ListGames != null)
{
SetListGamesBinding();
BindingTools.SetBinding(ListGames,
ExtendedListBox.SelectedItemProperty,
mainModel,
nameof(DesktopAppViewModel.SelectedGame),
BindingMode.TwoWay);
BindingTools.SetBinding(ListGames,
ExtendedListBox.SelectedItemsListProperty,
mainModel,
nameof(DesktopAppViewModel.SelectedGamesBinder),
BindingMode.TwoWay);
ScrollToSelectedBehavior.SetEnabled(ListGames, true);
if (!DesignerProperties.GetIsInDesignMode(this))
{
ListGames.InputBindings.Add(new KeyBinding(mainModel.EditSelectedGamesCommand, mainModel.EditSelectedGamesCommand.Gesture));
ListGames.InputBindings.Add(new KeyBinding(mainModel.RemoveSelectedGamesCommand, mainModel.RemoveSelectedGamesCommand.Gesture));
ListGames.InputBindings.Add(new KeyBinding(mainModel.StartSelectedGameCommand, mainModel.StartSelectedGameCommand.Gesture));
}
ListGames.SelectionMode = SelectionMode.Extended;
VirtualizingPanel.SetCacheLengthUnit(ListGames, VirtualizationCacheLengthUnit.Item);
VirtualizingPanel.SetCacheLength(ListGames, new VirtualizationCacheLength(5));
VirtualizingPanel.SetScrollUnit(ListGames, ScrollUnit.Pixel);
VirtualizingPanel.SetIsVirtualizingWhenGrouping(ListGames, true);
VirtualizingPanel.SetVirtualizationMode(ListGames, VirtualizationMode.Recycling);
}
ControlTemplateTools.InitializePluginControls(
mainModel.Extensions,
Template,
this,
SDK.ApplicationMode.Desktop,
mainModel,
$"{nameof(DesktopAppViewModel.SelectedGameDetails)}.{nameof(GameDetailsViewModel.Game)}.{nameof(GameDetailsViewModel.Game.Game)}");
}
protected override void OnElementChanged(ElementChangedEventArgs <ListView> e)
{
if (e.OldElement != null) // Clear old element event
{
e.OldElement.ItemSelected -= OnElementItemSelected;
e.OldElement.ScrollToRequested -= OnElementScrollToRequested;
var templatedItems = ((ITemplatedItemsView <Cell>)e.OldElement).TemplatedItems;
templatedItems.CollectionChanged -= OnCollectionChanged;
templatedItems.GroupedCollectionChanged -= OnGroupedCollectionChanged;
if (_listview != null)
{
_listview.MouseUp -= OnNativeMouseUp;
_listview.KeyUp -= OnNativeKeyUp;
_listview.TouchUp -= OnNativeTouchUp;
_listview.StylusUp -= OnNativeStylusUp;
_listview.Loaded -= ControlOnLoaded;
}
if (_scrollViewer != null)
{
_scrollViewer.ScrollChanged -= SendScrolled;
}
if (Control is object)
{
Control.SizeChanged -= Grid_SizeChanged;
}
}
if (e.NewElement != null)
{
e.NewElement.ItemSelected += OnElementItemSelected;
e.NewElement.ScrollToRequested += OnElementScrollToRequested;
if (_listview == null) // Construct and SetNativeControl and suscribe control event
{
_listview = new WList
{
DataContext = Element,
ItemTemplate = (System.Windows.DataTemplate)System.Windows.Application.Current.Resources["CellTemplate"],
Style = (System.Windows.Style)System.Windows.Application.Current.Resources["ListViewTemplate"]
};
VirtualizingPanel.SetVirtualizationMode(_listview, VirtualizationMode.Recycling);
VirtualizingPanel.SetScrollUnit(_listview, ScrollUnit.Pixel);
SetNativeControl(_grid);
// Setup grid for header/listview/footer
Control.RowDefinitions.Add(new System.Windows.Controls.RowDefinition {
Height = System.Windows.GridLength.Auto
});
Control.RowDefinitions.Add(new System.Windows.Controls.RowDefinition {
Height = new System.Windows.GridLength(1, System.Windows.GridUnitType.Star)
});
Control.RowDefinitions.Add(new System.Windows.Controls.RowDefinition {
Height = System.Windows.GridLength.Auto
});
WGrid.SetRow(_listview, 1);
Control.Children.Add(_listview);
_listview.MouseUp += OnNativeMouseUp;
_listview.KeyUp += OnNativeKeyUp;
_listview.TouchUp += OnNativeTouchUp;
_listview.StylusUp += OnNativeStylusUp;
_listview.Loaded += ControlOnLoaded;
}
// Subscribe element events
var templatedItems = TemplatedItemsView.TemplatedItems;
templatedItems.CollectionChanged += OnCollectionChanged;
templatedItems.GroupedCollectionChanged += OnGroupedCollectionChanged;
Control.SizeChanged += Grid_SizeChanged;
// Update control properties
UpdateHeader();
UpdateFooter();
UpdateItemSource();
UpdateHorizontalScrollBarVisibility();
UpdateVerticalScrollBarVisibility();
if (Element.SelectedItem != null)
{
OnElementItemSelected(null, new SelectedItemChangedEventArgs(Element.SelectedItem, -1));
}
}
base.OnElementChanged(e);
}
