public static string GetPropertyName<TObject, TProperty>(
	this TObject this,
	Expression<Func<TObject, TProperty>> expression
)

<ExtensionAttribute>
Public Shared Function GetPropertyName(Of TObject, TProperty) ( 
	this As TObject,
	expression As Expression(Of Func(Of TObject, TProperty))
) As String

public:
[ExtensionAttribute]
generic<typename TObject, typename TProperty>
static String^ GetPropertyName(
	TObject this, 
	Expression<Func<TObject, TProperty>^>^ expression
)

[<ExtensionAttribute>]
static member GetPropertyName : 
        this : 'TObject * 
        expression : Expression<Func<'TObject, 'TProperty>> -> string 

class MyClass
{
  public int MyProperty { get; set; }
}

...

MyClass myClass = new MyClass();

// The following line retrieves the property name as a string.
string propertyName = myClass.GetPropertyName(o => o.MyProperty);