public static void SetInheritedBindingContext(BindableObject bindable, object value)
{
BindablePropertyContext bpContext = bindable.GetContext(BindingContextProperty);
if (bpContext != null && ((bpContext.Attributes & BindableContextAttributes.IsManuallySet) != 0))
{
return;
}
object oldContext = bindable._inheritedContext;
if (ReferenceEquals(oldContext, value))
{
return;
}
if (bpContext != null && oldContext == null)
{
oldContext = bpContext.Value;
}
if (bpContext != null && bpContext.Binding != null)
{
bpContext.Binding.Context = value;
bindable._inheritedContext = null;
}
else
{
bindable._inheritedContext = value;
}
bindable.ApplyBindings(skipBindingContext: false, fromBindingContextChanged: true);
bindable.OnBindingContextChanged();
}
static void BindingContextPropertyBindingPropertyChanged(BindableObject bindable, object oldvalue, object newvalue)
{
object oldInheritedContext = bindable._inheritedContext;
bindable._inheritedContext = null;
bindable.ApplyBindings(oldInheritedContext ?? oldvalue, true);
bindable.OnBindingContextChanged();
}
static void BindingContextPropertyChanged(BindableObject bindable, object oldvalue, object newvalue)
{
bindable._inheritedContext = null;
bindable.ApplyBindings(skipBindingContext: true, fromBindingContextChanged: true);
bindable.OnBindingContextChanged();
}