/// <summary>
/// Retrieves the specified calculated property if it exists; otherwise, creates the calculated property and returns it.
/// </summary>
/// <typeparam name="T">The type of the property value.</typeparam>
/// <param name="calculateValue">The delegate used to calculate the property value.</param>
/// <param name="propertyName">The name of the property to retrieve or create.</param>
public CalculatedProperty <T> GetOrAddCalculatedProperty <T>(Func <T> calculateValue, [CallerMemberName] string propertyName = null)
{
IProperty result;
if (!_properties.TryGetValue(propertyName, out result))
{
result = new CalculatedProperty <T>(_onPropertyChanged, calculateValue);
_properties.Add(propertyName, result);
}
return(result as CalculatedProperty <T>);
}
public DebugView(CalculatedProperty <T> property)
{
_property = property;
_base = new SourcePropertyBase.DebugView(property);
}