Get a property name by expression (Type safe)

gistfile1.cs

protected string GetPropertyName<T>(Expression<Func<T>> propertyExpression)
{
    if (propertyExpression == null)
    {
        throw new ArgumentNullException("propertyExpression");
    }

    var body = propertyExpression.Body as MemberExpression;

    if (body == null)
    {
        throw new ArgumentException("Invalid argument", "propertyExpression");
    }

    var property = body.Member as PropertyInfo;

    if (property == null)
    {
        throw new ArgumentException("Argument is not a property", "propertyExpression");
    }

    return property.Name;
}