33 lines
1.4 KiB
C#
33 lines
1.4 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Windows;
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namespace Server_Dashboard {
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/// <summary>
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/// Attached property base class
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/// </summary>
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/// <typeparam name="TParent"></typeparam>
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/// <typeparam name="TProperty"></typeparam>
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public abstract class BaseAttachedProperty<TParent, TProperty>
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where TParent : BaseAttachedProperty<TParent, TProperty>, new() {
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public event Action<DependencyObject, DependencyPropertyChangedEventArgs> ValueChanged = (sender, e) => { };
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public static TParent Instance { get; private set; } = new TParent();
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public static readonly DependencyProperty ValueProperty = DependencyProperty.RegisterAttached("Value", typeof(TProperty), typeof(BaseAttachedProperty<TParent, TProperty>), new PropertyMetadata(new PropertyChangedCallback(OnValuePropertyChanged)));
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private static void OnValuePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) {
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Instance.OnValueChanged(d, e);
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Instance.ValueChanged(d, e);
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}
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public static TProperty GetValue(DependencyObject d) => (TProperty)d.GetValue(ValueProperty);
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public static void SetValue(DependencyObject d, TProperty value) => d.SetValue(ValueProperty, value);
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public virtual void OnValueChanged(DependencyObject sender, DependencyPropertyChangedEventArgs e) {
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}
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}
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} |