如何在Linq语句动态中使“s.Id”和“提升”？

Question

如何在Linq语句动态中使“s.Id”和“升序”？

var orderedList = from s in this.myList orderby s.Id ascending select s;

感谢

Answer 1

var param = "Id";
var direction = "asc";

var propertyInfo = myList[0].GetType().GetProperty(param);
var orderById = myList.Select(x => new { item = x, sort = propertyInfo.GetValue(x) })
        .OrderBy(x => direction == "asc" ? x.sort : 0)
        .OrderByDescending(x => direction == "desc" ? x.sort : 0)
        .Select(x => x.item)
        .ToList();

Answer 2

你可以这样做

var param = "Id";    
var propertyInfo = typeof(yourObject).GetProperty(param);    
var orderById = this.myList.OrderBy(x => propertyInfo.GetValue(x, null));