public void SetProperty(AttachedPropertyID propertyID, object value)
{
var dictionary = _data.Value;
lock (dictionary) {
dictionary[propertyID] = value;
}
}
public bool RemoveProperty(AttachedPropertyID propertyID)
{
if (_data.IsValueCreated)
{
var dictionary = _data.Value;
lock (dictionary) {
return(dictionary.Remove(propertyID));
}
}
return(false);
}
public bool TryGetProperty(AttachedPropertyID propertyID, out object value)
{
if (_data.IsValueCreated)
{
var dictionary = _data.Value;
lock (dictionary) {
object answer;
if (dictionary.TryGetValue(propertyID, out answer))
{
value = answer;
return(true);
}
}
}
value = null;
return(false);
}
public static string GetExtenderName(AttachedPropertyID name)
{
return(string.Concat(name.DeclaringType.Name, ".", name.PropertyName));
}
public abstract bool TryGetProperty(AttachedPropertyID propertyID, out object value);
public abstract void SetProperty(AttachedPropertyID propertyID, object value);
public abstract bool RemoveProperty(AttachedPropertyID propertyID);