public static AttributeCollection GetAggregatedAttributes(this IAggregatesAttributes owner)
{
var aggregateAttributes = new AttributeCollection();
if (owner.AttributeParent != null)
{
aggregateAttributes.AddOrUpdateAttributes(owner.AttributeParent.GetAggregatedAttributes());
}
aggregateAttributes.AddOrUpdateAttributes(owner.ExplicitAttributes);
return(aggregateAttributes);
}
public static string GetAggregatedAttributeValue(this IAggregatesAttributes owner, string attributeName)
{
if (owner.ExplicitAttributes.Contains(attributeName))
{
return(owner.ExplicitAttributes[attributeName].Value);
}
else if (owner.AttributeParent != null)
{
return(owner.AttributeParent.GetAggregatedAttributeValue(attributeName));
}
return(null);
}
public static bool TryGetAggregatedAttributeValue(this IAggregatesAttributes owner, string attributeName, out string value)
{
value = GetAggregatedAttributeValue(owner, attributeName);
return(value != null);
}