要根据asp.net的可见性选择LINQ表达式

Question

所以我有一个包含具有visibility枚举属性的post对象的列表。我正在尝试获取所有具有visibility == visibility.public和visibility == visibility.private && AuthorId == currentUserId的帖子。

这似乎不起作用：from e in list select (e.Visibility == Visibility.Public && (e.Visibility == Visibility.Private && e.Author.Id == userId))

如有任何帮助，将不胜感激

Answer 1

您要求帖子同时具有公共和私有可见性。您的两个条件应该使用OR而不是AND。

您的条件应该是e.Visibility == Visibility.Public || (e.Visibility == Visibility.Private && e.Author.Id == userId)

注意||

Answer 2

试试这个

var filteredList = list.Where(x => x.Visibility == Visibility.Public || (x.Visibility == Visibility.Private && x.AuthorId == currentUserId)).ToList();