protected IDataDescriptor GetDataDescriptor(UIElement element)
{
string targetName = Storyboard.GetTargetName(this);
object targetObject = null;
if (targetName == null)
targetObject = element;
else
{
INameScope ns = element.FindNameScope();
if (ns != null)
targetObject = ns.FindName(targetName);
if (targetObject == null)
targetObject = element.FindElement(new NameMatcher(targetName));
if (targetObject == null)
return null;
}
try
{
IDataDescriptor result = new ValueDataDescriptor(targetObject);
if (_propertyExpression != null && _propertyExpression.Evaluate(result, out result))
return result;
}
catch (XamlBindingException e)
{
ServiceRegistration.Get<ILogger>().Warn("PropertyAnimationTimeline: Error evaluating expression '{0}' on target object '{1}'", e, _propertyExpression, targetObject);
}
return null;
}
