ClemensFischer/XAML-Map-Control
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Move LocationMemberPath to MapItemsControl

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This commit is contained in:
ClemensFischer 2022-11-03 21:16:46 +01:00
parent 65c93d1a3e
commit d8656c99a4
3 changed files with 43 additions and 20 deletions
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51
MapControl/Shared/MapItemsControl.cs
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@ -26,11 +26,6 @@ namespace MapControl
/// </summary>
public partial class MapItem : ListBoxItem
{
public static readonly DependencyProperty LocationMemberPathProperty = DependencyProperty.Register(
nameof(LocationMemberPath), typeof(string), typeof(MapItem),
new PropertyMetadata(null, (o, e) => BindingOperations.SetBinding(
o, LocationProperty, new Binding { Path = new PropertyPath((string)e.NewValue) })));
/// <summary>
/// Gets/sets MapPanel.AutoCollapse.
/// </summary>
@ -48,15 +43,6 @@ namespace MapControl
get => (Location)GetValue(LocationProperty);
set => SetValue(LocationProperty, value);
}
/// <summary>
/// Path to a source property for binding the Location property.
/// </summary>
public string LocationMemberPath
{
get => (string)GetValue(LocationMemberPathProperty);
set => SetValue(LocationMemberPathProperty, value);
}
}
/// <summary>
@ -64,6 +50,18 @@ namespace MapControl
/// </summary>
public partial class MapItemsControl : ListBox
{
public static readonly DependencyProperty LocationMemberPathProperty = DependencyProperty.Register(
nameof(LocationMemberPath), typeof(string), typeof(MapItemsControl), new PropertyMetadata(null));
/// <summary>
/// Path to a source property for binding the Location property of MapItem containers.
/// </summary>
public string LocationMemberPath
{
get => (string)GetValue(LocationMemberPathProperty);
set => SetValue(LocationMemberPathProperty, value);
}
protected override DependencyObject GetContainerForItemOverride()
{
return new MapItem();
@ -74,6 +72,31 @@ namespace MapControl
return item is MapItem;
}
protected override void PrepareContainerForItemOverride(DependencyObject element, object item)
{
base.PrepareContainerForItemOverride(element, item);
if (LocationMemberPath != null && element is MapItem mapItem)
{
mapItem.SetBinding(MapItem.LocationProperty,
new Binding
{
Path = new PropertyPath(LocationMemberPath),
Source = item
});
}
}
protected override void ClearContainerForItemOverride(DependencyObject element, object item)
{
base.ClearContainerForItemOverride(element, item);
if (LocationMemberPath != null && element is MapItem mapItem)
{
mapItem.ClearValue(MapItem.LocationProperty);
}
}
public void SelectItems(Predicate<object> predicate)
{
if (SelectionMode == SelectionMode.Single)