每当我提交表单时,传递给控制器的模型都是NULL.我花了很长时间看这个.我想我在这里缺少一些基本的东西.
@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>
}
该模型是：
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的行动是：
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult CreateMeeting(Meeting meeting)
{
return RedirectToAction("ReinviteVisitor2",new { visitorId = meeting.SubjectId });
}
我在模型中有字段,例如Id,我期望数据库填充我将在动作CreateMeeting()中编写的内容.是否必须在表单中使用模型中的所有字段？
解决方法
您视图中的模型是typeof ReinviteVisitorModel,这意味着自发布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删除NewMeeting前缀.
public ActionResult CreateMeeting([Bind(Prefix="NewMeeting")]Meeting model)
附注：从隐藏输入中删除新的{@Value = Model.Info.SubjectId},然后在将模型传递给视图之前在GET方法中设置NewMeeting.SubjectId的值.
