public static void RegisterPropertyGroup(BindableProperty property, HashSet <BindableProperty> group)
{
if (!PropertyToGroup.ContainsKey(property))
{
PropertyToGroup.Add(property, group);
}
if (null != group && !(group.Contains(property)))
{
group.Add(property);
}
}
public void EnforceNotifyBindedInstance(BindableProperty property)
{
if (null != property)
{
BindablePropertyContext context = GetOrCreateContext(property);
BindingBase binding = context.Binding;
var currentlyApplying = applying;
if (binding != null && !currentlyApplying)
{
applying = true;
binding.Apply(true);
applying = false;
}
OnPropertyChanged(property.PropertyName);
PropertyToGroup.TryGetValue(property, out HashSet <BindableProperty> propertyGroup);
if (null != propertyGroup)
{
foreach (var relativeProperty in propertyGroup)
{
if (relativeProperty != property)
{
var relativeContext = GetOrCreateContext(relativeProperty);
var relativeBinding = relativeContext.Binding;
if (null != relativeBinding)
{
applying = true;
relativeBinding.Apply(true);
applying = false;
}
OnPropertyChanged(relativeProperty.PropertyName);
}
}
}
}
}
void SetValueActual(BindableProperty property, BindablePropertyContext context, object value, bool currentlyApplying, SetValueFlags attributes, bool silent = false)
{
object original = context.Value;
bool raiseOnEqual = (attributes & SetValueFlags.RaiseOnEqual) != 0;
bool clearDynamicResources = (attributes & SetValueFlags.ClearDynamicResource) != 0;
bool clearOneWayBindings = (attributes & SetValueFlags.ClearOneWayBindings) != 0;
bool clearTwoWayBindings = (attributes & SetValueFlags.ClearTwoWayBindings) != 0;
bool same = ReferenceEquals(context.Property, BindingContextProperty) ? ReferenceEquals(value, original) : Equals(value, original);
if (!silent && (!same || raiseOnEqual))
{
property.PropertyChanging?.Invoke(this, original, value);
OnPropertyChanging(property.PropertyName);
}
if (!same || raiseOnEqual)
{
context.Value = value;
}
context.Attributes &= ~BindableContextAttributes.IsDefaultValue;
context.Attributes &= ~BindableContextAttributes.IsDefaultValueCreated;
if ((context.Attributes & BindableContextAttributes.IsDynamicResource) != 0 && clearDynamicResources)
{
RemoveDynamicResource(property);
}
BindingBase binding = context.Binding;
if (binding != null)
{
if (clearOneWayBindings && binding.GetRealizedMode(property) == BindingMode.OneWay || clearTwoWayBindings && binding.GetRealizedMode(property) == BindingMode.TwoWay)
{
RemoveBinding(property, context);
binding = null;
}
}
PropertyToGroup.TryGetValue(property, out HashSet <BindableProperty> propertyGroup);
if (!silent && (!same || raiseOnEqual))
{
property.PropertyChanged?.Invoke(this, original, value);
if (binding != null && !currentlyApplying)
{
applying = true;
binding.Apply(true);
applying = false;
}
OnPropertyChanged(property.PropertyName);
if (null != propertyGroup)
{
foreach (var relativeProperty in propertyGroup)
{
if (relativeProperty != property)
{
var relativeContext = GetOrCreateContext(relativeProperty);
var relativeBinding = relativeContext.Binding;
if (null != relativeBinding)
{
applying = true;
relativeBinding.Apply(true);
applying = false;
}
OnPropertyChanged(relativeProperty.PropertyName);
}
}
}
OnPropertyChangedWithData(property);
}
}
