/// <summary>
/// Tries to get a specific property value. The bags are search for the property, starting from the topmost bag and iterating to the bag at the bottom.
/// </summary>
/// <typeparam name="T">Type of the property value to search for.</typeparam>
/// <param name="p">The property key.</param>
/// <param name="value">On successfull return, this contains the retrieved property value.</param>
/// <param name="bag">On successfull return, this contains the property bag from which the property value was retrieved.</param>
/// <param name="bagInfo">On successfull return, this contains the information about the property bag from which the property value was retrieved.</param>
/// <returns><c>True</c> if the property value could be successfully retrieved; <c>false</c> otherwise.</returns>
public bool TryGetValue <T>(PropertyKey <T> p, out T value, out IPropertyBag bag, out PropertyBagInformation bagInfo)
{
foreach (var tuple in _propertyBags)
{
if (tuple.Bag.TryGetValue <T>(p, out value))
{
bag = tuple.Bag;
bagInfo = tuple.BagInformation;
return(true);
}
}
value = default(T);
bag = null;
bagInfo = default(PropertyBagInformation);
return(false);
}
/// <summary>
/// Adds the bag. This bag will be added at the bottom of the hierarchy.
/// </summary>
/// <param name="description">The information about the bag.</param>
/// <param name="bag">The bag to add.</param>
public void AddBag(PropertyBagInformation description, PropertyBag bag)
{
_propertyBags.Add(new PropertyBagWithInformation(description, bag));
}
public PropertyBagWithInformation(PropertyBagInformation bagInformation, IPropertyBag bag)
{
BagInformation = bagInformation;
Bag = bag;
}
/// <summary>
/// Tries to get a specific property value. The bags are search for the property, starting from the topmost bag and iterating to the bag at the bottom.
/// </summary>
/// <typeparam name="T">Type of the property value to search for.</typeparam>
/// <param name="propName">The property key as string value.</param>
/// <param name="value">On successfull return, this contains the retrieved property value.</param>
/// <param name="bag">On successfull return, this contains the property bag from which the property value was retrieved.</param>
/// <param name="bagInfo">On successfull return, this contains the information about the property bag from which the property value was retrieved.</param>
/// <returns><c>True</c> if the property value could be successfully retrieved; <c>false</c> otherwise.</returns>
public bool TryGetValue <T>(string propName, out T value, out IPropertyBag bag, out PropertyBagInformation bagInfo)
{
return(TryGetValue <T>(propName, false, out value, out bag, out bagInfo));
}
public PropertyBagWithInformation(PropertyBagInformation bagInformation, IPropertyBag bag)
{
BagInformation = bagInformation;
Bag = bag;
}
