private void ConfigureConditionality()
{
var conditionName = ControllableAttribute.ConditionalPropertyName;
if (string.IsNullOrEmpty(conditionName))
{
return;
}
// Check for raw string value of True or False
if (String.Compare(conditionName, "true", true, CultureInfo.InvariantCulture) == 0 ||
String.Compare(conditionName, "false", true, CultureInfo.InvariantCulture) == 0)
{
ReflectCondition(bool.Parse(conditionName));
return;
}
// Check for property by that name
var flags = BindingFlags.Instance | BindingFlags.Static | BindingFlags.Public | BindingFlags.NonPublic;
var conditionProperty = PropertyResolutionObject.GetType().GetProperty(conditionName, flags);
if (conditionProperty == null)
{
throw new MissingMemberException("Could not find condition property named " + conditionName);
}
if (conditionProperty.PropertyType == typeof(ControllableCondition))
{
ControllableCondition = (ControllableCondition)conditionProperty.GetValue(PropertyResolutionObject, null);
ControllableCondition.Changed += HandleConditionChanged;
ReflectCondition(ControllableCondition.ConditionValid);
}
else if (conditionProperty.PropertyType == typeof(bool))
{
var staticConditionValue = (bool)conditionProperty.GetValue(PropertyResolutionObject, null);
ReflectCondition(staticConditionValue);
}
else
{
throw new MemberAccessException("Property found with name, but not a type or value which can specify conditionality.");
}
}
} // A formality of reflective event binding...
private void ConfigureObservation()
{
if (string.IsNullOrEmpty(ControllableAttribute.ObservableEventName))
{
return;
}
ObservingEvent = PropertyResolutionObject.GetType().GetEvent(ControllableAttribute.ObservableEventName);
if (ObservingEvent == null)
{
throw new MissingMemberException("Could not find change-observing event named " + ControllableAttribute.ObservableEventName);
}
ChangeHandlerDelegate = Delegate.CreateDelegate(ObservingEvent.EventHandlerType, this, ((Action)HandleObservedPropertyChanged).Method);
ObservingEvent.AddEventHandler(PropertyResolutionObject, ChangeHandlerDelegate);
}