Ajax 模式未更新目标 ID

Question

我有以下模式可以将 cmets 添加到博客，但是当我提交表单而不是使用所有已添加 cmets 的列表更新目标 ID 时，它会重定向到带有 cmets 列表的新页面？如何更新目标 ID 以便它与所有其他评论一起显示新评论？

 <button type="button" class="btn btn-primary" data-toggle="modal"    data-target="#myModal"> Launch demo modal</button>

<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
    @using (Ajax.BeginForm("AddComment", "Blog", new AjaxOptions
                {
                    HttpMethod = "POST",
                    InsertionMode = InsertionMode.Replace,
                    UpdateTargetId = "comments",
                    LoadingElementId = "progress",
                    OnSuccess = "$('#myModal').modal('hide');"

                }))
      {
        <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-label="Close">
                <span aria-hidden="true">&times;</span>
            </button>
            <h4 class="modal-title" id="myModalLabel">Add Comment</h4>
        </div>
        <div class="modal-body">
             @Html.ValidationSummary(true)
             @Html.HiddenFor(model => model.Blog.BlogID)

             <div class="form-group">
                 @Html.LabelFor(model => model.BlogComment.Comment)
                 @Html.TextAreaFor(model => model.BlogComment.Comment, 4, 104, new { @class = "form-control" })
                 @Html.ValidationMessageFor(model => model.BlogComment.Comment)
             </div>

        </div>
        <div class="modal-footer">
           <button type="button" class="btn btn-primary">Save changes</button>
           <button type="button" class="btn btn-primary" data-dismiss="modal">Close</button>
        </div>
      }
  </div>
 </div>
</div>


<div id="comments">
   @Html.Action("Comments", "Blog", new { id = Model.Blog.ID })
</div>



public PartialViewResult Comments(int id)
{
    IEnumerable<BlogComment> CommentList = _repository.GetBlogComments(id);

    return PartialView("_BlogComments", CommentList);

}

public ActionResult AddComment(// All Pramameters)
{
     if (ModelState.IsValid)
     {
          // Do Save Comment

          if (Request.IsAjaxRequest()) 
          {
             return RedirectToAction("Comments", new { id = id });
          }

     }
     else
    {
        //return to modal with errors
         return PartialView("_CreateComment", BlogViewModel);
     }

 }

Answer 1

RedirectToAction 将触发客户端重定向。

将你的 return 改为 this ，它只是调用你现有的返回 PartialViewResult 的方法：

 if (Request.IsAjaxRequest()) 
 {
     return Comments(id);
 }

更新

另请参阅下面的 cmets 以了解另一方面，即不显眼的 ajax 和 jquery 验证更新。