gistfile1.cs

// Quick hack!

internal static class DPRegistration
	{
		public static DependencyProperty Register<T>(Expression<Func<T, object>> member)
		{
			PropertyInfo property = GetProperty(member);

			return DependencyProperty.Register(property.Name,
				property.PropertyType,
				property.DeclaringType);
		}

		public static PropertyInfo GetProperty(LambdaExpression expression)
		{
			MemberExpression memberExpression = null;

			if (expression.Body.NodeType == ExpressionType.Convert)
			{
				UnaryExpression body = (UnaryExpression)expression.Body;
				memberExpression = body.Operand as MemberExpression;
			}
			else if (expression.Body.NodeType == ExpressionType.MemberAccess)
			{
				memberExpression = expression.Body as MemberExpression;
			}

			if (memberExpression == null)
			{
				throw new ArgumentException(String.Format(CultureInfo.InvariantCulture,
														  "Unsupported expression type: {0}",
														  expression.Body.GetType()),
											"expression");
			}

			return (PropertyInfo) memberExpression.Member;
		}
	}