protected void OnPropertyGet(string property)
{
if (this.EntityState != System.Data.EntityState.Detached)
{
instance.OnPropertyGet(property);
}
}
protected TValue Get <TValue>(Expression <Func <TValue> > property)
{
// Get the name of the property being fetched
string propertyName = ((MemberExpression)property.Body).Member.Name;
// Raise the property get notification
instance.OnPropertyGet(propertyName);
// Return a value if assigned
object value;
if (values.TryGetValue(propertyName, out value))
{
return((TValue)value);
}
// Automatically initialize list fields if null when accessed
if (typeof(TValue).IsGenericType && typeof(TValue).GetGenericTypeDefinition() == typeof(ICollection <>))
{
value = Activator.CreateInstance(typeof(ObservableCollection <>).MakeGenericType(typeof(TValue).GetGenericArguments()[0]));
values[propertyName] = value;
}
// Otherwise return null/default
return(default(TValue));
}
