将此LINQ代码查询转换为lambda表达式

Question

我想用lambda表达式转换此代码

HINTERNET

Answer 1

 dataContext.AccountTrees.Where(e => id.HasValue ? e.ParentId.Value == id.Value : e.ParentId == null).Select(x => new {id = e.AccountId, Name = e.Name, hasChildren = e.AccountTrees1.Any()})