渲染动作性能

Question

我有查看显示问题，答案，对答案的注释和问题。

要显示我想用这样的所有数据：

[HttpGet, ChildActionOnly] 
    public PartialViewResult RenderQuestion(int questionId, int page, int pageSize, string sort)//For question display 
    { 
     var question = questionsService.GetQuestion(questionId); 
     var author = userService.GetUser(question.AuthorId); 
     var commentIds = commentService.GetTopCommentIds(questionId, int.MaxValue, CommentType.Question); 
     var answerIds = answerService.GetAnswerIdsByQuestion(page, pageSize, questionId, sort); 
     var model = new QuestionModel{ Question = question, Author = author, CommentIds = commentIds, AnswerIds = answerIds} 
     return PartialView("_Question", model); 
    } 
    [HttpGet, ChildActionOnly] 
    public PartialViewResult RenderAnswer(int answerId) 
    { 
     var answer = answerService.GetAnswer(answerId); 
     var author = userService.GetUser(answer.AuthorId); 
     var commentIds = commentService.GetTopCommentIds(answerId, int.MaxValue, CommentType.Answer); 
     var model = new AnswerModel { Answer = answer, Author = author, CommentIds = commentIds}; 
     return PartialView("_Answer"); 
    } 

    [HttpGet, ChildActionOnly] 
    public PartialViewResult RenderComment(int commentId, CommentType commentType) 
    { 
     var comment = commentService.GetComment(commentId, commentType); 
     var author = userService.GetUser(comment.AuthorId); 
     var model = new CommentModel { Comment = comment, Author = author}; 
     return PartialView("_Comment"); 
    } 

而在例如用于问题，我会在循环迭代Model.AnswerIds和呼叫@{ Html.RenderAction("RenderAnswer", new {answerId}) };和Model.CommentIds呼唤我的部分景色@{ Html.RenderAction("RenderComment", new {commentId}) };

我想知道，这是一种很好的视角分解方法，并且这种方式会对通常造成的性能造成不良影响。@Html.RenderAction调用。

Answer 1

不幸的是，这会导致性能不佳。 RenderAction的速度并不快。

您还将多次实例化您的控制器（可能会多次打开数据库）。

我建议你把所有东西都放入一个专门的控制器动作中。