Question

无论我提交表单，Comment对象只有一个值Comment Object 但页面看起来像这样 Create Form
为什么ViewModel值没有正确发布？

public class CommentViewModel{

    public Comment comment { get; set; }
    public UploadFile Uploadfile { get; set; }
}

这是评论类：

public class Comment{

    [Key]
    public int Id { get; set; }
    public int FileId { get; set; }
    public DateTime CreateDate { get; set; }
    public string review { get; set; }
    public string UserId { get; set; }
}

这是视图：

@using (Ajax.BeginForm(ajaxopts)){

    @Html.AntiForgeryToken()
    <h4>Comment</h4>
    <hr />
    @Html.ValidationSummary(true, "", new { @class = "text-danger" })

    @Html.LabelFor(model => model.comment.FileId, htmlAttributes: new { @class = "control-label col-md-2" })

    <input class="form-control text-box single-line" data-val="true" data-val-number="The field FileId must be a number." data-val-required="FileId is necessary" id="FileId" name="FileId" type="number" value="@ViewBag.FileId"  />

    @Html.LabelFor(model => model.comment.CreateDate, htmlAttributes: new { @class = "control-label col-md-2" })

   <input class="form-control text-box single-line" data-val="true" data-val-date="The field CreateDate must be a date." data-val-required="CreateDate is necessary" id="CreateDate" name="CreateDate" type="datetime" value="@DateTime.Now.ToString()" />

   @Html.LabelFor(model => model.comment.UserId, htmlAttributes: new { @class = "control-label col-md-2" })

  <input class="form-control text-box single-line" id="UserId" name="UserId" type="text" value="@User.Identity.Name.ToString()"  />

   @Html.ValidationMessageFor(model => model.comment.UserId, "", new { @class = "text-danger" })

   @Html.LabelFor(model => model.comment.review, htmlAttributes: new { @class = "control-label col-md-2" })

   @Html.EditorFor(model => model.comment.review, new { htmlAttributes = new { @class = "form-control" } })

   <input type="submit" value="Create" class="btn btn-default" /> 
}

这是控制器：

  public ActionResult CreateCommets(Comment comment){

        if (ModelState.IsValid)
        {
            db.Comments.Add(comment);
            db.SaveChanges();
        }
        List<Comment> Commentlist = (from p in db.Comments where p.FileId == comment.FileId select p).ToList();
        return PartialView("_CommentsView",Commentlist);
    }

Answer 1

您是否尝试过输入类型的HTML帮助程序类，例如：

 @Html.Textboxfor(m=>m.comment.CreateDate, new  { @class="",@type="datetime",@value="@DateTime.Now.ToString()"})

Answer 2

对于Userid，CreateDate和FileID尝试使用编辑器。您可以应用自定义类by looking at this question

Answer 3

请更新您的观看代码....

 @model ApplicationName.Models.Comment

 <h4>Comment</h4>
 <hr />
 @Html.ValidationSummary(true, "", new { @class = "text-danger" })

 @Html.LabelFor(model => model.FileId, htmlAttributes: new { @class = "control-label col-md-2" })

 <input class="form-control text-box single-line" data-val="true" data-val-number="The field FileId must be a number." data-val-required="FileId is necessary" id="FileId" name="FileId" type="number" value="@ViewBag.FileId" />

 @Html.LabelFor(model => model.CreateDate, htmlAttributes: new { @class = "control-label col-md-2" })

 <input class="form-control text-box single-line" data-val="true" data-val-date="The field CreateDate must be a date." data-val-required="CreateDate is necessary" id="CreateDate" name="CreateDate" type="datetime" value="@DateTime.Now.ToString()" />

  @Html.LabelFor(model => model.UserId, htmlAttributes: new { @class = "control-label col-md-2" })

  <input class="form-control text-box single-line" id="UserId" name="UserId" type="text" value="@User.Identity.Name.ToString()" />

 @Html.ValidationMessageFor(model => model.UserId, "", new { @class = "text-danger" })

 @Html.LabelFor(model => model.review, htmlAttributes: new { @class = "control-label col-md-2" })

 @Html.EditorFor(model => model.review, new { htmlAttributes = new { @class = "form-control" } })

 <input type="submit" value="Create" class="btn btn-default" />

ASP.NET MVC5 Ajax表单模型与null？

3 个答案: