Asp.net mvc 2 ViewModel为空MVC2
当我按下提交按钮并访问控制器时,我的ViewModel为空。我不知道为什么会发生这种情况,我在其他视图上有类似的代码,它们确实传递数据 控制器Asp.net mvc 2 ViewModel为空MVC2,asp.net-mvc-2,viewmodel,Asp.net Mvc 2,Viewmodel,当我按下提交按钮并访问控制器时,我的ViewModel为空。我不知道为什么会发生这种情况,我在其他视图上有类似的代码,它们确实传递数据 控制器 public ActionResult DeleteCategory(int id) { var data = _service.GetIndividualCategory(id); if (data == null) return View("NotFound");
public ActionResult DeleteCategory(int id)
{
var data = _service.GetIndividualCategory(id);
if (data == null) return View("NotFound");
// If attached to traders send to other view
var traders = _service.GetTradersAttachedToCategory(id);
if (!traders.Any())
{
var category = new DeleteCategoryViewModel
{
Description = data.Description,
Id = data.Id
};
return View(category);
}
var trader = new DisplayTradersAttachedToCategoryViewModel
{
Description = data.Description,
Id = data.Id,
BusinessName = traders.Select(x => new BusinessNameViewModel { BusinessName = x.BusinessName, Id = x.Id }),
Categories = _service.GetCategories(id).Select(x => new SelectListItem {Text = x.Description, Value = x.Id.ToString()})
};
return View("DeleteCategoryAttachedToTraders", trader);
}
点击“提交”按钮时访问
[HttpPost]
public ActionResult DeleteCategoryFromTradersAttachNewCategory(DisplayTradersAttachedToCategoryViewModel displayTradersAttachedToCategoryViewModel)
{
if (displayTradersAttachedToCategoryViewModel.Button == "Back to List") return RedirectToAction("ViewCategories");
//Update traders with new category
//delete category
//if (_service.DeleteCategory((int)deleteCategoryViewModel.Id))
//{
// return RedirectToAction("ViewCategories");
//}
return View("DeleteCategoryAttachedToTraders", displayTradersAttachedToCategoryViewModel);
}
DeleteCategoryAttachedToTraders.aspx
<%@ Page Title="Delete Category - Traders Attached to Category" Language="C#" MasterPageFile="~/Views/Shared/Master.Master" Inherits="System.Web.Mvc.ViewPage<Internal.ViewModels.Controller.DisplayTradersAttachedToCategoryViewModel>" %>
<asp:Content ID="pageTitle" ContentPlaceHolderID="PageTitle" runat="server">
Delete Category - Traders Attached to Category
</asp:Content>
<asp:Content ID="htmlHead" ContentPlaceHolderID="HtmlHead" runat="server">
<link href="<%=ResolveUrl("~/Assets/Styles/CSS.css")%>" rel="Stylesheet" type="text/css" />
</asp:Content>
<asp:Content ID="bodyContent" ContentPlaceHolderID="BodyContent" runat="server">
<div class="center"><%
using (Html.BeginForm("DeleteCategoryFromTradersAttachNewCategory", "Controller",FormMethod.Post))
{%>
<h2>Delete Category - Traders Attached to Category</h2>
<div class="magiPadBig"></div>
<div class="magiPadBig"></div>
<%=Html.DisplayFor(x => x.BusinessName)%>
<div class="magiPadBig"></div>
<h3>New Category</h3>
<div class="magiPadBig"></div>
<%=Html.DropDownList("Categories")%>
<div class="magiPadBig">
<input type="submit" name="Button" value="Back to List" />
<input type="submit" name="Button" value="Submit" />
</div><%
}%>
</div>
</asp:Content>
删除类别-附加到类别的交易员
删除类别-附加到类别的交易员
x、 商业名称)%%>
新类别
DisplayTraderSattachedLocategoryViewModel
public class DisplayTradersAttachedToCategoryViewModel
{
public int Id { get; set; }
public string Description { get; set; }
[UIHint("BusinessNameDisplayTemplate")]
public IEnumerable<BusinessNameViewModel> BusinessName { get; set; }
public IEnumerable<SelectListItem> Categories { get; set; }
public int Category { get; set; }
public string Button { get; set; }
}
公共类DisplayTraderSattachedLocategoryViewModel
{
公共int Id{get;set;}
公共字符串说明{get;set;}
[UIHint(“BusinessNameDisplayTemplate”)]
public IEnumerable BusinessName{get;set;}
公共IEnumerable类别{get;set;}
公共int类{get;set;}
公共字符串按钮{get;set;}
}
提前感谢您的帮助
克莱尔我看到的问题(我完全希望其他人在这里纠正我)如下:
(为清晰起见进行了编辑)
我看到的问题(我完全希望其他人在这里纠正我)如下:
(为清晰起见进行了编辑)
你能发布整个视图吗?你好,马丁,我现在添加了整个视图。你能发布整个视图吗?你好,马丁,我现在添加了整个视图
<%=Html.DropDownList("Category", Model.Categories)%>