Question

我是asp.net mvc的初学者。

我有一个产品型号，我希望为任何产品实施用户评论。我希望将注释显示为每个级别的树。

我在视图中使用递归方法来显示评论和回复评论但是它无法在第三级显示回复评论。

显示replyId为空时的第一级术语。首先显示对第一条评论的回复。但是之前的回复答案没有在第三级显示。

请帮帮我。非常感谢你。

这是我的模特

namespace Mvc_Shop.Models
{
public class Comment
{
    public Comment()
    {
        this.Children = new HashSet<Comment>();

    }
    public int Id { set; get; }

    public string Body { set; get; }

    public System.DateTime CommentDate { get; set; }

    public int? ReplyId { get; set; }

    public ICollection<Comment> Children { get; set; }
    public virtual Comment Reply { set; get; }

    public string User_Id { get; set; }
    [ForeignKey("User_Id")]
    public virtual User User { get; set; }
    public int Product_Id { get; set; } 
    [ForeignKey("Product_Id")]
    public virtual Product Product { get; set; }

}
}

这是我的观点

@helper TreeView(IEnumerable<Mvc_Shop.Models.Comment> Comments)
{
foreach (var item in Comments)
{    
    <div class="media">
        <div class="media-body" id="Comment_@(item.Id)" style="padding: 3px;width: 100%;">
            <h4 class="media-heading">
                @item.User.UserName
                <label class="badge pull-left" style="font-weight: normal">@item.CommentDate.ToString("dddd, dd MMMM yyyy - HH:mm")</label>
            </h4>
            <div class="clearfix">
                @item.Body
            </div>
            <fieldset id="reply-cmnt-form_@(item.Id)" class="spr-form-review" style="display:none">
                <div class="spr-form-review-body">
                    @Html.LabelFor(model => model.Comment.Body, new { @class = "spr-form-label" })

                    @Html.TextAreaFor(model => model.Comment.Body, new { @class = "spr-form-input spr-form-input-text", id = "commentbody" + @item.Id })
                    @Html.ValidationMessageFor(model => model.Comment.Body)
                </div>
            </fieldset>
            <a id="btn-hide-div_@(item.Id)" class="btn btn-xs pull-left btn-primary" style="clear: both; display:none" onclick="opencmntdiv(@item.Id);"> بستن</a>
            <a id="btn-send-div_@(item.Id)" class="btn btn-xs pull-left btn-primary" style="clear: both;float:right;display:none" onclick="ReplyComment(@item.Id);"> ارسال پاسخ</a>
            <a id="btn-show-div_@(item.Id)" class="btn btn-xs pull-left btn-primary" style="clear: both" onclick="opencmntdiv(@item.Id);"> پاسخ</a>

        </div>
    </div>
    <hr class="clearfix" />
    if (item.Children.Any())
    {          
        @TreeView(item.Children)    
    }
}
}                              

@TreeView(Model.Comments)

这是我的行动

public ActionResult ShowProducts(string ProductName)
{
        _dbContext = HttpContext.GetOwinContext().Get<ShopContext>();
        var model = new UserCommentViewModel();

        if (string.IsNullOrEmpty(ProductName))
        {
            return RedirectToAction("Index");
        }
        else
        {
            model.Products = blproduct.Where(p => p.Name.Trim() == ProductName.Trim()).ToList();
            model.Comments = (from u1 in _dbContext.Users
                              join u2 in _dbContext.Comments
                                  on u1.Id equals u2.User.Id
                              where u2.ReplyId == null
                              select new {
                                  Id = u2.Id, Body = u2.Body, CommentDate = u2.CommentDate, User = u1,Children = u2.Children
                              }).ToList().Select(x => new Comment
                              { 
                                  Id = x.Id, Body = x.Body, CommentDate = x.CommentDate, User = x.User,Children = x.Children
                              }).ToList();

            if (model != null)
            {
                return View(model);
            }
            else
            {
                return RedirectToAction("Index");
            }
        }
}

非常感谢。

如何在asp.net mvc中以分层方式显示用户注释

0 个答案: