Observe<T,TI>(T,Expression<Func<T,TI>>,Action<TI>,Action<TI>) Method

More sofisticated changes listener implementation

Syntax

Visual Basic
C#

'Declaration
 
Public Overloads Shared Function Observe
    (Of T As System.ComponentModel.INotifyPropertyChanged,
     TI)( _
   ByVal obj As T, _
   ByVal getterExpr As System.Linq.Expressions.Expression(Of Func(Of T,TI)), _
   ByVal leave As System.Action(Of TI), _
   ByVal enter As System.Action(Of TI) _
) As System.IDisposable

public static System.IDisposable Observe<T,TI>( 
   T obj,
   System.Linq.Expressions.Expression<Func<T,TI>> getterExpr,
   System.Action<TI> leave,
   System.Action<TI> enter
)
where T: System.ComponentModel.INotifyPropertyChanged

Parameters

obj
getterExpr
leave: Action for old value
enter: Action for new value

Type Parameters

T
TI

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ActiveModelListenExtensions Class
ActiveModelListenExtensions Members
Overload List