43 lines
1.1 KiB
C#
43 lines
1.1 KiB
C#
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using System;
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using Xamarin.Forms;
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namespace Aurora.Frontend.Behaviors
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{
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public class BehaviorBase<T> : Behavior<T> where T : BindableObject
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{
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public T AssociatedObject { get; private set; }
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protected override void OnAttachedTo(T bindable)
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{
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base.OnAttachedTo(bindable);
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AssociatedObject = bindable;
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if (bindable.BindingContext != null)
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{
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BindingContext = bindable.BindingContext;
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}
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bindable.BindingContextChanged += OnBindingContextChanged;
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}
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protected override void OnDetachingFrom(T bindable)
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{
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base.OnDetachingFrom(bindable);
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bindable.BindingContextChanged -= OnBindingContextChanged;
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AssociatedObject = null;
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}
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void OnBindingContextChanged(object sender, EventArgs e)
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{
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OnBindingContextChanged();
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}
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protected override void OnBindingContextChanged()
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{
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base.OnBindingContextChanged();
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BindingContext = AssociatedObject.BindingContext;
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}
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}
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}
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