dropdownlist中的选定值不起作用
dropdownlist中的选定值不起作用
提问于 2013-04-12 02:05:04
我试图在视图中显示一个复杂的视图模型，除了一个下拉列表之外，所有的东西都工作得很好。我正在显示一个枚举列表，并将所选对象设置为它应该是的样子。但是由于未知的原因，它没有显示所选的值。我已经尝试了很多次，但都失败了--请帮帮我。代码如下所示-
枚举：
public enum CommentStatus
{
NoStatus = 0,
Resolved = 1,
NotApplicable = 2
}型号：
public class CheckComments
{
public string EntryId { get; set; }
public int Serial { get; set; }
public string Comment { get; set; }
public DateTime CommentDate { get; set; }
public CommentStatus CommentStatus { get; set; }
}
public class CheckDataViewModel
{
public string EntryId { get; set; }
public string CheckId { get; set; }
public decimal Value { get; set; }
public List<CheckComments> CheckCommentsList { get; set; }
public List<string> CommentStatusList { get; set; }
}控制器：
public class CheckDataController : Controller
{
public ActionResult GetEnteredCheckData(string entryId)
{
var checkDataViewModel = new CheckDataViewModel();
var checkData = new CheckDataManager().GetCheckData(entryId);
checkDataViewModel.EntryId = checkData.EntryId;
checkDataViewModel.CheckId = checkData.CheckId;
checkDataViewModel.Value = checkData.Value;
checkDataViewModel.CheckCommentsList = checkData.Comments;
checkDataViewModel.CommentStatusList = Enum.GetNames(typeof (CommentStatus)).ToList();
return View("EnteredCheckData", checkDataViewModel);
}
}查看：
@model PDCA.Web.Models.CheckDataViewModel
@{
ViewBag.Title = "EnteredCheckData";
Layout = "~/Views/Shared/_Layout.cshtml";
}
@using (Html.BeginForm())
{
@Html.ValidationSummary(true)
<fieldset>
<div class="row">
<div class="span3">
<div class="text-left">@Html.LabelFor(model => model.EntryId)</div>
</div>
<div class="span3">
<div class="text-left">
@Html.DisplayFor(model => model.EntryId)
@Html.HiddenFor(model => model.EntryId)
</div>
</div>
</div>
</fieldset>
<fieldset>
<legend>Check Information</legend>
<div class="row">
<div class="span3">
<div class="text-left">@Html.LabelFor(model => model.CheckId)</div>
</div>
<div class="span3">
<div class="text-left">
@Html.DisplayFor(model => model.Check.CheckId)
@Html.HiddenFor(model => model.Check.CheckId)
</div>
</div>
</div>
</fieldset>
<fieldset>
<legend>Comments</legend>
<div>
<table class="table table-bordered">
<tr>
<th>
Serial
</th>
<th>
Comment
</th>
<th>
Date
</th>
<th>
Status
</th>
<th>
</th>
</tr>
@for (int i = 0; i < Model.CheckCommentsList.Count; i++)
{
<tr>
<td>
@Html.DisplayFor(modelItem => Model.CheckCommentsList[i].Serial)
@Html.HiddenFor(modelItem => Model.CheckCommentsList[i].Serial)
</td>
<td>
@Html.DisplayFor(modelItem => Model.CheckCommentsList[i].Comment)
@Html.HiddenFor(modelItem => Model.CheckCommentsList[i].Comment)
</td>
<td>
@Html.DisplayFor(modelItem => Model.CheckCommentsList[i].CommentDate)
@Html.HiddenFor(modelItem => Model.CheckCommentsList[i].CommentDate)
</td>
<td>
@Html.DropDownListFor(modelItem => Model.CheckCommentsList[i].CommentStatus, new SelectList(Model.CommentStatusList, Model.CheckCommentsList[i].CommentStatus))
@Html.ValidationMessageFor(model => Model.CheckCommentsList[i].CommentStatus)
</td>
<td>
@Html.ActionLink("Update Status", "UpdateCommentStatus", new { Model.EntryId, Model.CheckCommentsList[i].Serial, Model.Check.CheckTitle, Model.Check.CheckId })|
@Html.ActionLink("Delete", "DeleteComment", new { Model.CheckCommentsList[i].Serial, Model.EntryId })
</td>
</tr>
}
</table>
</div>
</fieldset>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>代码太长了，但我认为这会帮助你理解我的错误。提前感谢朋友们。
回答 1
Stack Overflow用户
回答已采纳
发布于 2013-04-12 23:01:37
解决方案：
@Html.DropDownListFor(modelItem => Model.CheckCommentsListi.CommentStatus，新的SelectList(Model.CommentStatusList，
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/15955763
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