Question

我想使用lambda将匿名属性传递给泛型函数并在那里访问它我如何进入内部的房产。

using (CommentsRepository commentsRepository = new CommentsRepository())
{
   var comments = commentsRepository.GetAllComments();

   Foo<Comment>(comments, 0,com=>com.ID); //Comment is an  EF entity
}

public static void Foo<TObject>(IEnumerable<TObject> list, int iCurID, <Func<TObject, TProperty> property) where TObject : class
{       
   foreach (var cat in list.Where(/*How to access the property*/==iCurID)
   {
          int x = cat.property;
   }
 }

Answer 1

您只需致电代表：

public static void Foo<TObject>
    (IEnumerable<TObject> list, 
     int iCurID,
     Func<TObject, int> propertySelector) where TObject : class
{       
   foreach (var cat in list.Where(x => propertySelector(x) == iCurID))
   {

   }
}

请注意，我必须将代理的类型更改为Func<TObject, int>，否则您无法将其与iCurID进行比较。

如何通过lambda将匿名属性传递给泛型函数？

1 个答案: