mvc3 razor dropdownlistfor导致更新模型失败
我有以下代码的问题。基本上当我调用updatemodel它失败但我没有得到内部异常。如果我将下拉菜单更改为文本框，则可以正常工作。
类：
public class Member
{
[Key]
public int MemberID { get; set; }
[StringLength(50),Required()]
public string Name { get; set; }
[Range(0,120)]
public short Age { get; set; }
[Required(),MaxLength(1)]
public string Gender {get; set;}
[Required()]
public virtual Team Team { get; set; }
}
[HttpGet]
public ActionResult ViewMember(int id)
{
try
{
var m = db.GetMember(id);
var maleItem = new SelectListItem{Text = "Male", Value= "M", Selected=m.Gender == "M"};
var femaleItem = new SelectListItem{Text = "Female", Value="F", Selected=m.Gender == "F"};
List<SelectListItem> items = new List<SelectListItem>();
items.Add(maleItem);
items.Add(femaleItem);
var genders = new SelectList(items, "Value", "Text");
ViewBag.Genders = genders;
return View(m);
}
catch (Exception ex)
{
return View();
}
}
[HttpPost]
public ActionResult ViewMember(Member m)
{
try
{
var member = db.GetMember(m.MemberID);
m.Team = db.GetTeam(member.Team.TeamID);
UpdateModel(member);
db.Save();
return RedirectToAction("ViewMembers", new { id = member.Team.TeamID });
}
catch (Exception ex)
{
return View();
}
}
@model GreenpowerAdmin.Models.Member
@using GreenpowerAdmin.Helpers
@{
ViewBag.Title = "ViewMember";
}
<h2>ViewMember</h2>
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"> </script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
<legend>Member</legend>
@Html.HiddenFor(model => model.MemberID)
<div class="editor-label">
@Html.LabelFor(model => model.Name)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Name)
@Html.ValidationMessageFor(model => model.Name)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Team.Name)
</div>
<div class="editor-field">
@Html.DisplayFor(model => model.Team.Name)
@Html.ValidationMessageFor(model => model.Team.Name)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Age)
</div>
<div class="editor-field">
@Html.EditorFor(model => model.Age)
@Html.ValidationMessageFor(model => model.Age)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.Gender)
</div>
<div class="editor-field">
@Html.DropDownList("Gender", ViewBag.Genders as SelectList)
@Html.ValidationMessageFor(model => model.Gender)
</div>
<p>
<input type="submit" value="Save" />
</p>
</fieldset>
}
<div>
@Html.ActionLink("Back to List", "ViewMembers", new { id=Model.Team.TeamID })
</div>
没有找到相关结果
已邀请:
1 个回复
悸翠疮武昏
属性声明为可以为空的整数：[Key] public int? MemberID { get; set; }