/// <summary>
/// Détermine si cette propriété a été initialisée
/// </summary>
/// <param name="element">The element.</param>
/// <returns>
/// <c>true</c> if the specified element has value; otherwise, <c>false</c>.
/// </returns>
public bool HasValue(ICustomizableElement element)
{
if (element == null)
{
throw new ArgumentNullException("element");
}
DependencyProperty property = element.GetStrategyCustomProperty(_strategyId, _name, false);
return(property != null && property.Value != null);
}
/// <summary>
/// Mise à jour d'un paramètre personnalisé
/// </summary>
/// <param name="instance">The instance.</param>
/// <param name="value">The value.</param>
public virtual void SetValue(ICustomizableElement instance, T value)
{
if (instance == null)
{
throw new ArgumentNullException("instance");
}
bool isDefaultValue = false;
// HasDefaultValue && DefaultValue.Equals(value);// (Voir ShouldSerializeValue property) || (_shouldSerializeValueDelegate != null && !_shouldSerializeValueDelegate(value));
DependencyProperty property = instance.GetStrategyCustomProperty(_strategyId, _name, !isDefaultValue);
if (property != null && value != null)
{
Transaction transaction =
((ModelElement)instance).Store.TransactionManager.BeginTransaction("Set custom value");
try
{
//property.Value = SerializationUtilities.GetString<T>(value);
DependencyPropertyValue dpv = new DependencyPropertyValue();
dpv.SetValue(this, value);
property.Value = dpv;
transaction.Commit();
}
catch (ArgumentOutOfRangeException exception)
{
if (transaction.IsActive)
{
transaction.Rollback();
}
throw;
}
catch (Exception)
{
if (transaction.IsActive)
{
transaction.Rollback();
}
throw;
}
}
}
/// <summary>
/// Tries the get value.
/// </summary>
/// <param name="self">The self.</param>
/// <param name="element">The element.</param>
/// <param name="strategyId">The strategy id.</param>
/// <param name="propertyName">Name of the property.</param>
/// <param name="value">The value.</param>
/// <returns></returns>
protected static bool TryGetValue(IDependencyProperty self, ICustomizableElement element, string strategyId,
string propertyName, out T value)
{
// Recherche si cette valeur est dans le modèle
DependencyProperty property = element.GetStrategyCustomProperty(strategyId, propertyName, false);
if (property != null)
{
if (property.Value != null) // Pas initialisée
{
value = property.Value.GetValue <T>(self);
// if (SerializationUtilities.TryGetValue<T>(SerializationUtilities.UnescapeXmlString(property.Value), out value))
if (value != null)
{
return(true);
}
}
}
value = default(T);
return(false);
}