每当我提交表单时,传递到 Controller 的模型都是 NULL。我花了很长时间看这个。我想我在这里遗漏了一些基本的东西。
@model VisitorPortal.Models.ReinviteVisitorModel
@using (Html.BeginForm("CreateMeeting", "Home", FormMethod.Post, new { @class = "form-horizontal", role = "form" }))
{
@Html.AntiForgeryToken()
<h3>Reinvitation Details</h3>
<div>The information entered below will be sent to the visitors email address @Model.Info.Email</div>
<hr />
@Html.ValidationSummary("", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(m => m.NewMeeting.Title, new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.TextBoxFor(m => m.NewMeeting.Title, new { @class = "form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(m => m.NewMeeting.StartTime, new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.TextBoxFor(m => m.NewMeeting.StartTime, new { @class = "datetimepicker form-control" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(m => m.NewMeeting.EndTime, new { @class = "col-md-2 control-label" })
<div class="col-md-10">
@Html.TextBoxFor(m => m.NewMeeting.EndTime, new { @class = "datetimepicker form-control" })
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
@Html.HiddenFor(m => m.NewMeeting.SubjectId, new { @Value = Model.Info.SubjectId })
<input type="submit" class="btn btn-default" value="Send Invite" />
</div>
</div>
}
模型是:
public class Meeting
{
[Key]
public int Id { get; set; }
public string SubjectId { get; set; }
[Required]
[Display(Name = "Reason for invitation")]
public string Title { get; set; }
[Required]
[Display(Name = "Start Time")]
[DataType(DataType.Time)]
public DateTime StartTime { get; set; }
[Required]
[Display(Name = "End Time")]
[DataType(DataType.Time)]
public DateTime EndTime { get; set; }
public string HostEmail { get; set; }
public string HostMobile { get; set; }
}
public class MeetingsDBContext: DbContext
{
public DbSet<Meeting> Meetings { get; set; }
}
public class ReinviteVisitorModel
{
public Visitor Info;
public Meeting NewMeeting;
public List<Meeting> Meetings;
}
Controller 操作是:
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult CreateMeeting(Meeting meeting)
{
return RedirectToAction("ReinviteVisitor2", "Home", new { visitorId = meeting.SubjectId });
}
我在模型中有一些字段,例如 Id,我希望数据库填充这些字段,我将在操作 CreateMeeting() 中写入这些字段。模型中的所有字段都必须在表单中使用吗?
最佳答案
您 View 中的模型是 typeof ReinviteVisitorModel
,这意味着自您发布 ReinviteVisitorModel
以来,POST 方法的签名必须匹配
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult CreateMeeting(ReinviteVisitorModel model)
或者,您可以使用 BindAttribute
的 Prefix
属性从您要发布的表单控件的名称中去除 NewMeeting
前缀。
public ActionResult CreateMeeting([Bind(Prefix="NewMeeting")]Meeting model)
旁注:从隐藏输入中删除 new { @Value = Model.Info.SubjectId }
,并在之前的 GET 方法中设置 NewMeeting.SubjectId
的值您将模型传递给 View 。
关于asp.net - 模型在发送到 Controller 的表单上始终为 NULL,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38321628/