Visual Studio snippets for * quickly creating a MVVM property that raises INotifyPropertyChanged.PropertyChanged * quickly creating a MVVM DependencyProperty And related static methods for determining a property name via reflection at runtime

DependencyProperty.snippet

<?xml version="1.0" encoding="utf-8"?>
<CodeSnippets mlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
  <CodeSnippet Format="1.0.0">
    <Header>
      <SnippetTypes>
        <SnippetType>Expansion</SnippetType>
      </SnippetTypes>
      <Title>MVVM Dependency Property</Title>
      <Author>Phil Chuang</Author>
      <Description>A snippet for generating a Dependency Property</Description>
      <HelpUrl></HelpUrl>
      <Shortcut>mvvmdepprop</Shortcut>
    </Header>
    <Snippet>
      <Declarations>
        <Literal Editable="true">
          <ID>PropertyType</ID>
          <ToolTip>Property type</ToolTip>
          <Default>Object</Default>
          <Function>
          </Function>
        </Literal>
        <Literal Editable="true">
          <ID>PropertyName</ID>
          <ToolTip>Property name</ToolTip>
          <Default>Property</Default>
          <Function>
          </Function>
        </Literal>
        <Literal default="true" Editable="false">
          <ID>ClassName</ID>
          <ToolTip>Class name</ToolTip>
          <Function>ClassName()</Function>
          <Default>ClassNamePlaceholder</Default>
        </Literal>
      </Declarations>
      <Code Language="CSharp">
        <![CDATA[public $PropertyType$ $PropertyName$
  	{
			get { return ($PropertyType$) GetValue ($PropertyName$Property); }
			set { SetValue ($PropertyName$Property, value); }
		}

		public static readonly DependencyProperty $PropertyName$Property = DependencyProperty.Register (
			INotifyPropertyChangedHelper.GetPropertyName (($ClassName$ c) => c.$PropertyName$),
			typeof ($PropertyType$),
			typeof ($ClassName$),
			new PropertyMetadata (null, On$PropertyName$Changed));

		private static void On$PropertyName$Changed (DependencyObject d, DependencyPropertyChangedEventArgs e)
		{
			var instance = d as $ClassName$;

			if (instance == null) return;
      
      var oldValue = ($PropertyType$) e.OldValue;
      var newValue = ($PropertyType$) e.NewValue;

			// TODO implement
		}]]>
      </Code>
    </Snippet>
  </CodeSnippet>
</CodeSnippets>

INotifyPropertyChangedHelper.cs

  public static class INotifyPropertyChangedHelper
	{
		public static String GetPropertyName<T> (Expression<Func<T>> propertyExpression)
		{
			if (propertyExpression == null) throw new ArgumentNullException ("propertyExpression");

			if (propertyExpression.Body.NodeType == ExpressionType.MemberAccess)
			{
				var memberExpr = (MemberExpression) propertyExpression.Body;
				return memberExpr.Member.Name;
			}

			if (propertyExpression.Body.NodeType == ExpressionType.Convert
				&& propertyExpression.Body is UnaryExpression
				&& ((UnaryExpression) propertyExpression.Body).Operand.NodeType == ExpressionType.MemberAccess)
			{
				var memberExpr = (MemberExpression) ((UnaryExpression) propertyExpression.Body).Operand;
				return memberExpr.Member.Name;
			}

			throw new Exception (String.Format ("Expected MemberAccess expression, got {0}", propertyExpression.Body.NodeType));
		}

		public static String GetPropertyName<T, V> (Expression<Func<T, V>> propertyExpression)
		{
			if (propertyExpression == null) throw new ArgumentNullException ("propertyExpression");

			if (propertyExpression.Body.NodeType == ExpressionType.MemberAccess)
			{
				var memberExpr = (MemberExpression) propertyExpression.Body;
				return memberExpr.Member.Name;
			}

			if (propertyExpression.Body.NodeType == ExpressionType.Convert
				&& propertyExpression.Body is UnaryExpression
				&& ((UnaryExpression) propertyExpression.Body).Operand.NodeType == ExpressionType.MemberAccess)
			{
				var memberExpr = (MemberExpression) ((UnaryExpression) propertyExpression.Body).Operand;
				return memberExpr.Member.Name;
			}

			throw new Exception (String.Format ("Expected MemberAccess expression, got {0}", propertyExpression.Body.NodeType));
		}
	}

INotifyPropertyChangedProperty.snippet

<?xml version="1.0" encoding="utf-8"?>
<CodeSnippets mlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
  <CodeSnippet Format="1.0.0">
    <Header>
      <SnippetTypes>
        <SnippetType>Expansion</SnippetType>
      </SnippetTypes>
      <Title>MVVM Property</Title>
      <Author>Phil Chuang</Author>
      <Description>A snippet for generating a backed Property that calls RaisePropertyChanged</Description>
      <HelpUrl></HelpUrl>
      <Shortcut>mvvmprop</Shortcut>
    </Header>
    <Snippet>
      <Declarations>
        <Literal Editable="true">
          <ID>Type</ID>
          <ToolTip>Property type</ToolTip>
          <Default>Object</Default>
          <Function>
          </Function>
        </Literal>
        <Literal Editable="true">
          <ID>PropertyName</ID>
          <ToolTip>Property name</ToolTip>
          <Default>Property</Default>
          <Function>
          </Function>
        </Literal>
      </Declarations>
      <Code Language="CSharp">
        <![CDATA[private $Type$ my$PropertyName$;
public $Type$ $PropertyName$
{
  get { return my$PropertyName$; }
	set
	{
		my$PropertyName$ = value;
		RaisePropertyChanged (() => $PropertyName$);
	}
}]]>
      </Code>
    </Snippet>
  </CodeSnippet>
</CodeSnippets>