protected override object InternalTryGetValue(PropertyBag.BasicPropertyStore propertyBag)
{
string text = propertyBag.GetValueOrDefault <string>(this.CompositeProperty);
if (!propertyBag.IsDirty(this.CompositeProperty) && this.IsAtomOrRulePropertyDirty(propertyBag))
{
text = this.GenerateCompositePropertyValue(propertyBag);
}
return(text ?? new PropertyError(this, PropertyErrorCode.NotFound));
}
protected bool IsAtomOrRulePropertyDirty(PropertyBag.BasicPropertyStore propertyBag)
{
foreach (NativeStorePropertyDefinition propertyDefinition in this.atomAndRuleProperties)
{
if (propertyBag.IsDirty(propertyDefinition))
{
return(true);
}
}
return(false);
}
protected override bool InternalIsDirty(PropertyBag.BasicPropertyStore propertyBag)
{
return(propertyBag.IsDirty(this));
}
protected override bool InternalIsDirty(PropertyBag.BasicPropertyStore propertyBag)
{
foreach (PropertyDependency propertyDependency in this.dependencies)
{
if ((propertyDependency.Type & PropertyDependencyType.NeedForRead) == PropertyDependencyType.NeedForRead && propertyBag.IsDirty(propertyDependency.Property))
{
return(true);
}
}
return(false);
}