我正在编写我的第一个mvc 5生产应用程序。我试图将自定义对象作为参数传递给控制器中的http post操作。基本上，我有一个包含在我的CustomerReport视图模型中的视图，其中，我有一个部分创建了一个模态框，可以从模型中选择项目，并希望通过控制器操作保存选择，将视图模型（或视图模型的属性）作为参数传递。
我的报告视图模型
public class CustomerReport
{
public User User { get; set; }
public List<NewEnterprise> Enterprises { get; set; }
public NewEnterpriseRepository EnterpriseRepository { get; set; }
public NewCustomerRepository CustomerRepository { get; set; }
public NewProgramRepository ProgramRepository { get; set; }
public List<NewCustomer> Customers { get; set; }
public List<NewProgram> Programs { get; set; }
public List<InvoiceItem> InvoiceItems { get; set; }
public List<ReportSelectionItem> ReportSelectionItems { get; set; }
public List<ReportSelectionItem> FilteredSelectionItems { get; set; }
public DateTime StartDate { get; set; }
public DateTime EndDate { get; set; }
public string Start { get; set; }
public string End { get; set; }
public string ReportType { get; set; }
public NewReports Reports { get; set; }
public CustomerReport()
{
User = HttpContext.Current.GetUser();
Enterprises = new List<NewEnterprise>();
Customers = new List<NewCustomer>();
Programs = new List<NewProgram>();
InvoiceItems = new List<InvoiceItem>();
ReportSelectionItems = new List<ReportSelectionItem>();
}
public CustomerReport(User user)
{
User = user;
Enterprises = new List<NewEnterprise>();
Customers = new List<NewCustomer>();
Programs = new List<NewProgram>();
InvoiceItems = new List<InvoiceItem>();
ReportSelectionItems = new List<ReportSelectionItem>();
Start = Code.StringExtensions.InputDate(new DateTime(2016, 01, 01)).ToString();
End = Code.StringExtensions.InputDate(DateTime.Today).ToString();
}
public CustomerReport(User user, List<NewEnterprise> enterprises, List<NewCustomer> customers, List<NewProgram> programs)
{
User = user;
Enterprises = enterprises;
Customers = customers;
Programs = programs;
}
public List<ReportSelectionItem> GetAllReportSelectionItems()
{
var items = new List<ReportSelectionItem>();
foreach (var ent in Enterprises)
{
var item = new ReportSelectionItem(ent);
items.Add(item);
}
foreach (var cust in Customers)
{
var item = new ReportSelectionItem(cust);
items.Add(item);
}
foreach (var so in Programs)
{
var item = new ReportSelectionItem(so);
items.Add(item);
}
return items;
}
public List<ReportSelectionItem> ReportSelectionItemsSearch(string search)
{
var items = GetAllReportSelectionItems();
var filteredItems = new List<ReportSelectionItem>();
if (!String.IsNullOrWhiteSpace(search))
{
filteredItems = items.Where(i => i.DisplayName.ToLower().Contains(search.ToLower())).ToList();
return filteredItems;
}
return items;
}
public List<ReportSelectionItem> ReportSelectionItemsFilter(List<ReportSelectionItem> items, string type)
{
var filteredItems = new List<ReportSelectionItem>();
if (!type.ToLower().Equals("all"))
{
filteredItems = items.Where(i => i.Type.ToLower().Contains(type.ToLower())).ToList();
return filteredItems;
}
return items;
}
public void SearchAndFilter(string search, string searchType)
{
if (!String.IsNullOrWhiteSpace(search))
{
this.FilteredSelectionItems = this.ReportSelectionItemsSearch(search);
}
if (!String.IsNullOrWhiteSpace(searchType))
{
this.FilteredSelectionItems = this.ReportSelectionItemsFilter(this.ReportSelectionItems, searchType);
}
}
public void RemoveSlashFromDates(string start, string end)
{
if (start != null)
{
this.Start = start.Replace("/", "");
}
if (end != null)
{
this.End = end.Replace("/", "");
}
}
}
我的类用于选择列表中的项目
public class ReportSelectionItem
{
public Guid ID { get; set; }
public string Name { get; set; }
public string DisplayName { get; set; }
public string Number { get; set; }
public string Type { get; set; }
public string TypeDisplay => GetTypeDisplay(Type);
public bool IsSelected { get; set; }
public ReportSelectionItem()
{
ID = Guid.NewGuid();
IsSelected = false;
}
public ReportSelectionItem(NewEnterprise ent) : this()
{
Name = ent.Name;
DisplayName = ent.DisplayName;
Number = ent.EnterpriseNumber.ToString();
Type = ent.GetType().ToString();
}
public ReportSelectionItem(NewCustomer cust) : this()
{
Name = cust.Name;
DisplayName = cust.DisplayName;
Number = cust.Id.ToString();
Type = cust.GetType().ToString();
}
public ReportSelectionItem(NewProgram so) : this()
{
Name = so.Description;
DisplayName = so.DisplayName;
Number = so.ServiceOrderNumber.ToString();
Type = so.GetType().ToString();
}
public string GetTypeDisplay(string str)
{
if (str.ToLower().Contains("enterprise"))
{
return "Enterprise";
}else if (str.ToLower().Contains("customer"))
{
return "Customer";
}else if (str.ToLower().Contains("program"))
{
return "Program";
}
else return str;
}
}
我主要的视图选择，用于放置模态框。
@using System.Activities.Statements
@model RecognitionReports.Web.ViewDataModels.CustomerReport
@{
Layout = "~/Views/Shared/_Layout.cshtml";
}
<div class="row">
<div class="col-xs-offset-1 col-xs-10">
<div class="container">
<div class="form-wrapper">
<div class="search-form">
@using (Html.BeginForm("New", "CustomerReports", FormMethod.Get))
{
<form class="form">
<fieldset>
@Html.Label("Search:", new { @class = "form-label" })
<div class="form-group row">
<div class="col-xs-offset-1 col-xs-10">
<div class="input-group">
@Html.TextBox("search", null, new { @class = "form-control", @placeholder = "Enter Selection Name or ID Number here..." })
<span class="input-group-btn">
<div class="btn-group">
<a href="#" class="btn btn-info dropdown-toggle" data-toggle="dropdown"><span class="glyphicon glyphicon-search"></span> Search:</a>
<ul class="dropdown-menu">
<li><input name="searchType" type="submit" id="all" value="All" class="form-control btn btn-info" /></li>
<li><input name="searchType" type="submit" id="ent" value="Enterprise" class="form-control btn btn-info" /></li>
<li><input name="searchType" type="submit" id="cust" value="Customer" class="form-control btn btn-info" /></li>
<li><input name="searchType" type="submit" id="so" value="Program" class="form-control btn btn-info" /></li>
</ul>
</div>
</span>
</div>
</div>
</div>
</fieldset>
</form>
}
</div>
<!-- Report Selection Modal -->
@{ Html.RenderPartial("_ReportSelectionOptionsModal", Model);}
<!-- Report Modal -->
@{ Html.RenderPartial("_ReportModal", Model); }
</div>
</div>
</div>
我的模态视图
@model RecognitionReports.Web.ViewDataModels.CustomerReport
<div id="selection-modal" class="modal fade" role="dialog">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Report Selection Options</h4>
</div>
@using (Html.BeginForm("SaveSelections", "CustomerReports", FormMethod.Post))
{
<div class="modal-body">
<table class="table table-condensed table-striped table-hover">
<caption>All Report Options: </caption>
<thead>
<tr>
<th>Display Name</th>
<th>Type</th>
<th>Manage</th>
</tr>
</thead>
<tbody>
@foreach (var item in Model.FilteredSelectionItems)
{
<tr>
<td><strong>@item.DisplayName</strong></td>
<td>@item.TypeDisplay</td>
<td>
@Html.CheckBoxFor(i => item.IsSelected, new { @class = "check-box", Name=item.ID, id=item.ID })
</td>
</tr>
}
</tbody>
</table>
</div>
<div class="modal-footer">
<input type="submit" class="btn btn-success" name="action" value="Save"/>
<button type="button" class="btn btn-info" data-dismiss="modal">Close</button>
</div>
}
</div>
</div>
</div>
我希望将以下内容传递给控制器
[HttpPost]
public ActionResult SaveSelections(CustomerReport report)
{
//make sure selections are saved
return View("New", report);
}
或者
[HttpPost]
public ActionResult SaveSelections(List<ReportSelectionItems> items)
{
//make sure selections are saved
return View("New", report);
}
我尝试了很多方法，但它仍然将参数传递为null。我知道razor在页面呈现后将对象属性转换为字符串，但我看到有人将自定义对象作为参数传递给控制器操作......我做错了什么？有更好的方法吗？
编辑：更新模态视图中的For循环：
@for (var i = 0; i < Model.FilteredSelectionItems.Count; i++)
{
<tr>
<td><strong>@Model.FilteredSelectionItems[i].DisplayName</strong></td>
<td>@Model.FilteredSelectionItems[i].TypeDisplay</td>
<td>@Html.CheckBoxFor(x => Model.FilteredSelectionItems[i].IsSelected, new { @class = "check-box", Name = Model.FilteredSelectionItems[i].ID, id = Model.FilteredSelectionItems[i].ID})
@Html.HiddenFor(x => Model.FilteredSelectionItems[i].ID)
</td>
</tr>
}