public static MemberExpression[] GetPath <T>(Expression <Func <T> > expression)
{
var visitor = new PathExpressionVisitor();
visitor.Visit(expression.Body);
return(Enumerable.Reverse(visitor._path).ToArray());
}
/// <summary>
/// Returns the name of a property provided as a property expression.
/// </summary>
/// <typeparam name="T">Type of the property.</typeparam>
/// <param name="propertyExpression">Property expression on the the form () => Instance.Property.</param>
/// <param name="allowNestedProperty">Throw an exception if the provided path is a multi level path (e.g. a.b)</param>
/// <returns>Returns the simple name of the property.</returns>
public static string Property <T>(Expression <Func <T> > propertyExpression, bool allowNestedProperty = false)
{
var path = PathExpressionVisitor.GetPath(propertyExpression);
if (path.Length > 1 && !allowNestedProperty)
{
throw new Exception("Trying to get the name of a nested property: " + string.Join(".", path.Select(x => x.Member.Name)));
}
return(path.Last().Member.Name);
}