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我有下面的類定義爲我的ViewModel顯示對象的列表並設置值字段爲每個輸入MVC
public class CreateApplicationViewModel
{
public Step1ViewModel Step1 { get; set; }
public Step2StandAloneViewModel Step2StandAlone { get; set; }
public Step2ChildViewModel Step2Child { get; set; }
public Step3ViewModel Step3 { get; set; }
public Step4ViewModel Step4 { get; set; }
}
我想其中包括以下的Step4ViewModel顯示項目：
public class Step4ViewModel
{
public List<DataDetails> DataDetails = new List<DataDetails>();
}
public class DataDetails
{
public string GroupCode { get; set; }
public string GroupDesc { get; set; }
public decimal DetailSequence { get; set; }
public string DetailCode { get; set; }
public string DetailDesc { get; set; }
public string YesNoFlag { get; set; }
public string NumberFlag { get; set; }
public string ValueFlag { get; set; }
public string DateFlag { get; set; }
public string ListValuesFlag { get; set; }
public string CommentFlag { get; set; }
public string CalcRateFlag { get; set; }
public string ColumnSequence { get; set; }
public string TextFlag { get; set; }
public string CheckboxFlag { get; set; }
public string YesNoValue { get; set; }
public int NumberValue { get; set; }
public DateTime DateValue { get; set; }
public string ListValue { get; set; }
public string CommentValue { get; set; }
public string TextValue { get; set; }
public bool CheckboxValue { get; set; }
}
在我控制我填充Step4ViewModel.DataDetails像這樣：
private Step4ViewModel GetCaseDataDetails(string caseType)
{
Step4ViewModel model = new Step4ViewModel();
List<DataDetails> data = new List<DataDetails>();
List<DataDetailsValues> values = new List<DataDetailsValues>();
var dataDetails = (from tb1 in db.DEFAULT_CASE_DATA_VW
join tb2 in db.CASE_DATA_DETAIL on tb1.CASE_DATA_GROUP_ID equals tb2.CASE_DATA_GROUP_ID
where tb1.BUS_CASE_CODE == caseType
orderby tb2.DETAIL_SEQUENCE
select new { tb1, tb2 });
foreach (var detail in dataDetails.ToList())
{
DataDetails i = new DataDetails();
DataDetailsValues j = new DataDetailsValues();
i.CalcRateFlag = detail.tb2.CALC_RATE_FLAG;
i.CheckboxFlag = detail.tb2.CHECKBOX_FLAG;
i.ColumnSequence = detail.tb2.COLUMN_SEQUENCE;
i.CommentFlag = detail.tb2.COMMENT_FLAG;
i.DateFlag = detail.tb2.DATE_FLAG;
i.DetailCode = detail.tb2.DETAIL_CODE;
i.DetailDesc = detail.tb2.DETAIL_DESC;
i.DetailSequence = detail.tb2.DETAIL_SEQUENCE;
i.GroupCode = detail.tb1.GROUP_CODE;
i.GroupDesc = detail.tb1.GROUP_DESC;
i.ListValuesFlag = detail.tb2.LIST_VALUES_FLAG;
i.NumberFlag = detail.tb2.NUMBER_FLAG;
i.TextFlag = detail.tb2.TEXT_FLAG;
i.ValueFlag = detail.tb2.VALUE_FLAG;
i.YesNoFlag = detail.tb2.YES_NO_FLAG;
data.Add(i);
}
model.DataDetails = data;
return model;
}
我的你使用Step4ViewModel的ght過程是，對於每個DataDetail，我將顯示DetailDesc作爲標籤，然後在旁邊輸入NumberValue，YesOrNoValue，NumberValue，DateValue，ListValue，CommentValue，TextValue或CheckboxValue，具體取決於控件鍵入，然後將該數據發佈到服務器。我能夠成功顯示每個DataDetail.DetailDesc，但對於每個輸入（也會呈現），我輸入到輸入的值都不會回發到服務器。這是我的看法是什麼樣子：
@model Portal.Models.ViewModel.CreateApplicationViewModel
@{
ViewBag.Title = "Step 4/5";
Layout = "~/Views/Shared/_Layout.cshtml";
}
@using System.Linq
<h4>Case Data Details</h4>
@using (Html.BeginForm("Step4", "CreateApplication", FormMethod.Post, new { @class = "col-sm-12" }))
{
foreach (var group in Model.Step4.DataDetails.GroupBy(item => item.GroupDesc))
{
<div class="panel panel-primary">
<div class="panel-heading">@Html.Encode(group.Key)</div>
<div class="panel-body">
@for (var i = 0; i < group.Count(); i++)
{
<div class="form-group">
<div class="row">
<div class="col-xs-6">
<label class="form-label">@Model.Step4.DataDetails[i].DetailDesc</label>
</div>
<div class="col-xs-6">
@if (Model.Step4.DataDetails[i].TextFlag == "Y")
{
@Html.TextBoxFor(val => Model.Step4.DataDetails[i].TextValue, new { @class = "form-control" })
}
else if (Model.Step4.DataDetails[i].CheckboxFlag == "Y")
{
@Html.CheckBoxFor(val => Model.Step4.DataDetails[i].CheckboxValue, new { @class = "checkbox" })
}
</div>
</div>
</div>
}
</div>
</div>
}
<div class="col-sm-12">
<div class="row">
@Html.ActionLink("Cancel", "Welcome", "Home", null, new { @class = "btn btn-default" })
<button class="btn btn-default" onclick="history.go(-1);">Previous</button>
<button type="submit" class="btn btn-default">Next</button>
</div>
</div>
控制裝置，其後期數據
[HttpPost]
public ActionResult Step4(Step4ViewModel step4)
{
if (ModelState.IsValid)
{
CreateApplicationViewModel model = (CreateApplicationViewModel)Session["case"];
// model.Step4 = step4;
Session["case"] = model;
return View();
}
return View();
}
我想這可能是由於分組，這是我做的每一組分成單獨的HTML面板元件，但我的輸入是使用名稱中的索引號進行呈現。任何幫助或建議更好的方式來完成這將不勝感激。乾杯!
UPDATE
這是我更新的帖子控制器和視圖：
@model Portal.Models.ViewModel.CreateApplicationViewModel
@{
ViewBag.Title = "Step 4/5";
Layout = "~/Views/Shared/_Layout.cshtml";
}
@using System.Linq
<h4>Case Data Details</h4>
@using (Html.BeginForm("Step4", "CreateApplication", FormMethod.Post, new { @class = "col-sm-12" }))
{
int index = 0;
foreach (var group in Model.Step4.DataDetails.GroupBy(item => item.GroupDesc))
{
<div class="panel panel-primary">
<div class="panel-heading">@Html.Encode(group.Key)</div>
<div class="panel-body">
<input type="hidden" name="Step4.DataDetails.Index" value="@index" />
@for (var i = 0; i < group.Count(); i++)
{
<div class="form-group">
<div class="row">
<div class="col-xs-6">
<label class="form-label">@Model.Step4.DataDetails[i].DetailDesc</label>
</div>
<div class="col-xs-6">
@if (Model.Step4.DataDetails[i].TextFlag == "Y")
{
@Html.TextBoxFor(val => val.Step4.DataDetails[i].TextValue, new { @class = "form-control" })
}
else if (Model.Step4.DataDetails[i].CheckboxFlag == "Y")
{
@Html.CheckBoxFor(val => val.Step4.DataDetails[i].CheckboxValue, new { @class = "checkbox" })
}
</div>
</div>
</div>
}
</div>
</div>
index++;
}
<div class="col-sm-12">
<div class="row">
@Html.ActionLink("Cancel", "Welcome", "Home", null, new { @class = "btn btn-default" })
<button class="btn btn-default" onclick="history.go(-1);">Previous</button>
<button type="submit" class="btn btn-default">Next</button>
</div>
</div>
}
[HttpPost]
public ActionResult Step4(CreateApplicationViewModel step4)
{
if (ModelState.IsValid)
{
CreateApplicationViewModel model = (CreateApplicationViewModel)Session["case"];
// model.Step4 = step4;
Session["case"] = model;
return View();
}
return View();
}
更新2
我能夠得到的形式輸入，如果我傳遞的FormCollection到HttpPost控制器。任何想法，爲什麼我可以將這些值作爲FormCollection而不是模型？
首先，感謝您的回覆。我嘗試了上面的代碼，並且在回發到服務器時，我的模型的計數仍然爲0。這是我的柱控制器： '[HttpPost] 公共的ActionResult步驟4（Step4ViewModel步驟4） { 如果（ModelState.IsValid） { CreateApplicationViewModel模型=（CreateApplicationViewModel）會話[ 「殼體」]; // model.Step4 = step4; Session [「case」] = model; return View（）; } return View（）; }' – ghoston3rd
我試圖將列表呈現給沒有嵌套for的視圖，但模型仍然不會發布到服務器。 – ghoston3rd
@ ghoston3rd：在你的'Step4'動作方法中，將你的參數從'Step4ViewModel'改爲傳遞整個模型 - 'CreateApplicationViewModel'。所以發佈這個模型，而不是'Step4ViewModel'。 Mvc根據您的渲染控件名稱將數據發佈到控制器。因此，根據模型名稱，您的代碼 - 「@ Html.TextBoxFor（val => val.Step4.DataDetails [i] .TextValue，new {@class =」form-control「}）''呈現。 –