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feat: WIP add a demo.

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This commit is contained in:
rabbitism
2024-03-24 17:00:34 +08:00
parent d91a17474c
commit b15d237056
7 changed files with 93 additions and 1 deletions
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32
src/Ursa/Controls/ComboBox/MultiComboBox.cs
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@@ -3,13 +3,18 @@ using System.Collections.ObjectModel;
using System.Collections.Specialized;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Metadata;
using Avalonia.Controls.Primitives;
using Avalonia.Controls.Templates;
namespace Ursa.Controls;
[TemplatePart( PART_ListBox, typeof(ListBox))]
public class MultiComboBox: SelectingItemsControl
{
public const string PART_ListBox = "PART_ListBox";
private ListBox? _listBox;
private static ITemplate<Panel?> _defaultPanel = new FuncTemplate<Panel?>(() => new VirtualizingStackPanel());
public static readonly StyledProperty<bool> IsDropDownOpenProperty =
@@ -20,6 +25,15 @@ public class MultiComboBox: SelectingItemsControl
get => GetValue(IsDropDownOpenProperty);
set => SetValue(IsDropDownOpenProperty, value);
}
public new static readonly StyledProperty<IList?> SelectedItemsProperty = AvaloniaProperty.Register<MultiComboBox, IList?>(
nameof(SelectedItems));
public new IList? SelectedItems
{
get => GetValue(SelectedItemsProperty);
set => SetValue(SelectedItemsProperty, value);
}
static MultiComboBox()
{
@@ -44,4 +58,22 @@ public class MultiComboBox: SelectingItemsControl
dropDownItem.BringIntoView();
}
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_listBox = e.NameScope.Find<ListBox>(PART_ListBox);
if (_listBox != null)
{
_listBox.SelectionChanged += ListBox_SelectionChanged;
}
}
private void ListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (sender == _listBox)
{
this.SelectedItems = _listBox.SelectedItems;
}
}
}