Controls/DropPanel.xaml.cs - master - solostacktoolkit/novaflowwpf

Controls/DropPanel.xaml.cs
71 строка2 KB
Артем Зиновьев
Добавлен Demo
06 мар 2026, 23:48
06 мар 2026, 23:48772764d
using System;
using System.Collections;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Input;

namespace NovaFlow.Controls;

/// <summary>
/// Элегантная раскрывающаяся панель с анимацией и поддержкой команд
/// </summary>
public partial class DropPanel : UserControl
{
    public static readonly DependencyProperty HeaderProperty =
        DependencyProperty.Register(nameof(Header), typeof(string), typeof(DropPanel),
            new PropertyMetadata(string.Empty));

    public static readonly DependencyProperty ItemsProperty =
        DependencyProperty.Register(nameof(Items), typeof(IEnumerable), typeof(DropPanel),
            new PropertyMetadata(null, OnItemsChanged));

    public static readonly DependencyProperty IsExpandedProperty =
        DependencyProperty.Register(nameof(IsExpanded), typeof(bool), typeof(DropPanel),
            new PropertyMetadata(false));

    public static readonly DependencyProperty ItemSelectedCommandProperty =
        DependencyProperty.Register(nameof(ItemSelectedCommand), typeof(ICommand), typeof(DropPanel),
            new PropertyMetadata(null));

    public string Header
    {
        get => (string)GetValue(HeaderProperty);
        set => SetValue(HeaderProperty, value);
    }

    public IEnumerable Items
    {
        get => (IEnumerable)GetValue(ItemsProperty);
        set => SetValue(ItemsProperty, value);
    }

    public bool IsExpanded
    {
        get => (bool)GetValue(IsExpandedProperty);
        set => SetValue(IsExpandedProperty, value);
    }

    public ICommand ItemSelectedCommand
    {
        get => (ICommand)GetValue(ItemSelectedCommandProperty);
        set => SetValue(ItemSelectedCommandProperty, value);
    }

    public DropPanel()
    {
        InitializeComponent();
        Loaded += OnLoaded;
    }

    private void OnLoaded(object sender, RoutedEventArgs e)
    {
        if (ItemsControl != null)
            ItemsControl.ItemsSource = Items;
    }

    private static void OnItemsChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
    {
        if (d is DropPanel panel && panel.ItemsControl != null)
            panel.ItemsControl.ItemsSource = e.NewValue as IEnumerable;
    }
}