ModelBaseExtensionsUpdatePropertyT Method

public static void UpdateProperty<T>(
	this T model,
	Expression<Func<T, Object>> property,
	Action onChanged = null
)
where T : INotify

<ExtensionAttribute>
Public Shared Sub UpdateProperty(Of T As INotify) ( 
	model As T,
	property As Expression(Of Func(Of T, Object)),
	Optional onChanged As Action = Nothing
)

public:
[ExtensionAttribute]
generic<typename T>
where T : INotify
static void UpdateProperty(
	T model, 
	Expression<Func<T, Object^>^>^ property, 
	Action^ onChanged = nullptr
)

[<ExtensionAttribute>]
static member UpdateProperty : 
        model : 'T * 
        property : Expression<Func<'T, Object>> * 
        ?onChanged : Action 
(* Defaults:
        let _onChanged = defaultArg onChanged null
*)
-> unit  when 'T : INotify

 1/// <summary>
 2/// Updates a property directly by comparing values and then firing its 
 3/// OnPropertyChanged event if necessary.
 4/// </summary>
 5/// <typeparam name="T"></typeparam>
 6/// <param name="propertyName">Name of the property.</param>
 7/// <param name="newValue">The new value.</param>
 8/// <param name="valueReference">The value reference.</param>
 9/// <param name="onChanged">The on changed.</param>
10public void NotifyOfChange<T>(string propertyName, T newValue,
11    ref T valueReference, Action onChanged = null)
12{
13    if (!Equals(newValue, null))
14    {
15        // If values are the same, exit
16        if (newValue.Equals(valueReference)) return;
17
18        // Assign new value
19        valueReference = newValue;
20    }
21    else
22    {
23        valueReference = default(T);
24    }
25
26    // Fire OnPropertyChanged
27    UpdateProperty(propertyName, onChanged);
28}