static ItemsElementBehavior()
{
BindableSelectedItemsProperty = DependencyProperty.Register(
"BindableSelectedItems", typeof(IList), typeof(System.Windows.Controls.ListBox));
HasBindableSelectedItemsProperty = DependencyProperty.RegisterAttached(
"HasBindableSelectedItems", typeof(bool), typeof(System.Windows.Controls.ListBox), new PropertyMetadata(false));
SelectionChangedHandlerProperty = DependencyProperty.RegisterAttached(
"SelectionChangedHandler", typeof(SelectionChangedHandler), typeof(System.Windows.Controls.ListBox));
DefaultSelectedIndexProperty = DependencyProperty.RegisterAttached(
"DefaultSelectedIndex", typeof(int), typeof(System.Windows.Controls.ListBox), new UIPropertyMetadata(0));
ForceSingleSelectionModeItemIndexProperty = DependencyProperty.RegisterAttached(
"ForceSingleSelectionModeItemIndex", typeof(int), typeof(System.Windows.Controls.ListBox), new UIPropertyMetadata(0));
SortInfoPropertyKey = DependencyProperty.RegisterAttachedReadOnly(
"SortInfo", typeof(SortInfo), typeof(ItemsElementBehavior), new PropertyMetadata());
MultiUpdatePropertyNamesProperty = DependencyProperty.RegisterAttached(
"MultiUpdatePropertyNames", typeof(IEnumerable), typeof(ItemsElementBehavior), new UIPropertyMetadata(null, (obj, args) =>
{
var listBox = (System.Windows.Controls.ListBox)obj;
if (args.NewValue != null)
{
new ListBoxMultiUpdatePropertyNamesBehavior(listBox);
}
}));
EnableSortingProperty = DependencyProperty.RegisterAttached(
"EnableSorting", typeof(bool), typeof(ListView), new UIPropertyMetadata(false, (obj, args) =>
{
if (args.NewValue != null && args.NewValue is bool && ((bool)args.NewValue) == true)
{
var listView = (ListView)obj;
listView.AddHandler(GridViewColumnHeader.ClickEvent, new RoutedEventHandler((sender, e) =>
{
var header = e.OriginalSource as GridViewColumnHeader;
if (header != null && header.Column != null && header.Column.DisplayMemberBinding != null)
{
string bindingProperty = (header.Column.DisplayMemberBinding as Binding).Path.Path;
ListSortDirection sortDirection = ListSortDirection.Ascending;
if (listView.Items.SortDescriptions.Count > 0)
{
SortDescription sd = listView.Items.SortDescriptions[0];
sortDirection = (ListSortDirection)(1 - (int)sd.Direction);
listView.Items.SortDescriptions.Clear();
}
SortInfo sortInfo = listView.GetValue(SortInfoPropertyKey.DependencyProperty) as SortInfo;
if (sortInfo == null)
{
sortInfo = new SortInfo()
{
LastSortColumn = header, CurrentAdorner = new ArrowAdorner(header, new ListSortDecorator {
SortDirection = sortDirection
})
};
AdornerLayer.GetAdornerLayer(header).Add(sortInfo.CurrentAdorner);
listView.SetValue(SortInfoPropertyKey, sortInfo);
}
else
{
if (sortInfo.LastSortColumn != header)
{
AdornerLayer.GetAdornerLayer(sortInfo.LastSortColumn).Remove(sortInfo.CurrentAdorner);
sortInfo.LastSortColumn = header;
sortInfo.CurrentAdorner = new ArrowAdorner(header, new ListSortDecorator {
SortDirection = sortDirection
});
AdornerLayer.GetAdornerLayer(header).Add(sortInfo.CurrentAdorner);
}
sortInfo.CurrentAdorner.Child.SortDirection = sortDirection;
}
try
{
listView.Items.SortDescriptions.Add(new SortDescription(bindingProperty, sortDirection));
}
catch (InvalidOperationException)
{
#if DEBUG
throw;
#endif
}
}
}));
}
}));
}
static ItemsElementBehavior()
{
BindableSelectedItemsProperty = DependencyProperty.Register(
"BindableSelectedItems", typeof(IList), typeof(System.Windows.Controls.ListBox));
HasBindableSelectedItemsProperty = DependencyProperty.RegisterAttached(
"HasBindableSelectedItems", typeof(bool), typeof(System.Windows.Controls.ListBox), new PropertyMetadata(false));
SelectionChangedHandlerProperty = DependencyProperty.RegisterAttached(
"SelectionChangedHandler", typeof(SelectionChangedHandler), typeof(System.Windows.Controls.ListBox));
DefaultSelectedIndexProperty = DependencyProperty.RegisterAttached(
"DefaultSelectedIndex", typeof(int), typeof(System.Windows.Controls.ListBox), new UIPropertyMetadata(0));
ForceSingleSelectionModeItemIndexProperty = DependencyProperty.RegisterAttached(
"ForceSingleSelectionModeItemIndex", typeof(int), typeof(System.Windows.Controls.ListBox), new UIPropertyMetadata(0));
SortInfoPropertyKey = DependencyProperty.RegisterAttachedReadOnly(
"SortInfo", typeof(SortInfo), typeof(ItemsElementBehavior), new PropertyMetadata());
MultiUpdatePropertyNamesProperty = DependencyProperty.RegisterAttached(
"MultiUpdatePropertyNames", typeof(IEnumerable), typeof(ItemsElementBehavior), new UIPropertyMetadata(null, (obj, args) =>
{
var listBox = (System.Windows.Controls.ListBox)obj;
if (args.NewValue != null)
new ListBoxMultiUpdatePropertyNamesBehavior(listBox);
}));
EnableSortingProperty = DependencyProperty.RegisterAttached(
"EnableSorting", typeof(bool), typeof(ListView), new UIPropertyMetadata(false, (obj, args) =>
{
if (args.NewValue != null && args.NewValue is bool && ((bool)args.NewValue) == true)
{
var listView = (ListView)obj;
listView.AddHandler(GridViewColumnHeader.ClickEvent, new RoutedEventHandler((sender, e) =>
{
var header = e.OriginalSource as GridViewColumnHeader;
if (header != null && header.Column != null && header.Column.DisplayMemberBinding != null)
{
string bindingProperty = (header.Column.DisplayMemberBinding as Binding).Path.Path;
ListSortDirection sortDirection = ListSortDirection.Ascending;
if (listView.Items.SortDescriptions.Count > 0)
{
SortDescription sd = listView.Items.SortDescriptions[0];
sortDirection = (ListSortDirection)(1 - (int)sd.Direction);
listView.Items.SortDescriptions.Clear();
}
SortInfo sortInfo = listView.GetValue(SortInfoPropertyKey.DependencyProperty) as SortInfo;
if (sortInfo == null)
{
sortInfo = new SortInfo() { LastSortColumn = header, CurrentAdorner = new ArrowAdorner(header, new ListSortDecorator { SortDirection = sortDirection }) };
AdornerLayer.GetAdornerLayer(header).Add(sortInfo.CurrentAdorner);
listView.SetValue(SortInfoPropertyKey, sortInfo);
}
else
{
if (sortInfo.LastSortColumn != header)
{
AdornerLayer.GetAdornerLayer(sortInfo.LastSortColumn).Remove(sortInfo.CurrentAdorner);
sortInfo.LastSortColumn = header;
sortInfo.CurrentAdorner = new ArrowAdorner(header, new ListSortDecorator { SortDirection = sortDirection });
AdornerLayer.GetAdornerLayer(header).Add(sortInfo.CurrentAdorner);
}
sortInfo.CurrentAdorner.Child.SortDirection = sortDirection;
}
try
{
listView.Items.SortDescriptions.Add(new SortDescription(bindingProperty, sortDirection));
}
catch (InvalidOperationException)
{
#if DEBUG
throw;
#endif
}
}
}));
}
}));
}
internal static void SetSortInfo(DependencyObject obj, SortInfo value)
{
obj.SetValue(SortInfoPropertyKey.DependencyProperty, value);
}
internal static void SetSortInfo(DependencyObject obj, SortInfo value)
{
obj.SetValue(SortInfoPropertyKey.DependencyProperty, value);
}
