Asp.net mvc 3 如何在MVC3中绑定嵌套模型?
我一直在阅读有关UpdateModel()和自定义模型绑定器的所有内容,但我仍然无法理解这一点。似乎有一个简单的答案 我有一个名为user的类,我在我的MVC Web应用程序中使用它Asp.net mvc 3 如何在MVC3中绑定嵌套模型?,asp.net-mvc-3,razor,model-binding,Asp.net Mvc 3,Razor,Model Binding,我一直在阅读有关UpdateModel()和自定义模型绑定器的所有内容,但我仍然无法理解这一点。似乎有一个简单的答案 我有一个名为user的类,我在我的MVC Web应用程序中使用它 public class User { [Key] public int ID { get; set; } [Required] public string Name { get; set; } [Required] [Email] public str
public class User
{
[Key]
public int ID { get; set; }
[Required]
public string Name { get; set; }
[Required]
[Email]
public string Email { get; set; }
[Required]
public string Password { get; set; }
public virtual ICollection<User> WorkTasks { get; set; }
}
公共类用户
{
[关键]
公共int ID{get;set;}
[必需]
公共字符串名称{get;set;}
[必需]
[电邮]
公共字符串电子邮件{get;set;}
[必需]
公共字符串密码{get;set;}
公共虚拟ICollection工作任务{get;set;}
}
然后是一个在几个地方都有它的工作任务:
public class WorkTask
{
[Key]
public int ID { get; set; }
[Required]
public string Name { get; set; }
public DateTime? DesiredStartDate { get; set; }
public DateTime? DesiredEndDate { get; set; }
public TimeSpan? DesiredTimeSpent { get; set; }
public virtual ICollection<WorkTaskTag> Tags { get; set; }
public virtual ICollection<WorkTaskPeriod> Periods { get; set; }
public virtual ICollection<User> InvolvedUsers { get; set; }
public virtual User CreatedBy { get; set; }
public virtual User AssignedTo { get; set; }
public string UserNameAssignedTo
{
get
{
if(AssignedTo!=null)
return AssignedTo.Name;
return CreatedBy.Name;
}
}
public string TotalTimeSpent {
get
{
var concretePeriods = Periods
.Where(i => i.StartDate.HasValue && i.EndDate.HasValue);
if (concretePeriods != null && concretePeriods.Count() > 0)
{
TimeSpan ts = new TimeSpan();
foreach (var p in concretePeriods)
{
var t=p.EndDate.Value-p.StartDate.Value;
ts.Add(t);
}
TimePeriodHelpers help = new TimePeriodHelpers();
return help.GetTimeFormat(ts);
}
return "0:00";
}
}
}
公共类工作任务
{
[关键]
公共int ID{get;set;}
[必需]
公共字符串名称{get;set;}
公共日期时间?DesiredStartDate{get;set;}
公共日期时间?DesiredEndDate{get;set;}
公共时间跨度?DesiredTimeSpan{get;set;}
公共虚拟ICollection标记{get;set;}
公共虚拟ICollection时段{get;set;}
公共虚拟ICollection涉及用户{get;set;}
公共虚拟用户通过{get;set;}创建
分配给{get;set;}的公共虚拟用户
公共字符串usernamesignedto
{
得到
{
if(AssignedTo!=null)
返回AssignedTo.Name;
返回CreatedBy.Name;
}
}
公共字符串TotalTimePent{
得到
{
var周期=周期
.Where(i=>i.StartDate.HasValue&&i.EndDate.HasValue);
if(concretePeriods!=null&&concretePeriods.Count()>0)
{
TimeSpan ts=新的TimeSpan();
foreach(特定时期的var p)
{
var t=p.EndDate.Value-p.StartDate.Value;
ts.Add(t);
}
TimePeriodHelpers帮助=新的TimePeriodHelpers();
返回help.GetTimeFormat(ts);
}
返回“0:00”;
}
}
}
那么,如何为这个WorkTask创建一个允许用户类在多个位置绑定到WorkTask的创建模板呢
以下是我的拙劣尝试:
[HttpPost]
public ActionResult Create(WorkTask worktask)
{
LoadUsers();
string assignedto=Request["AssignedTo"];
var user = db.Users.First(i => SqlFunctions.StringConvert((double)i.ID) == assignedto);
UpdateModel<User>(user);
if (ModelState.IsValid)
{
db.WorkTasks.Add(worktask);
db.SaveChanges();
return RedirectToAction("Index");
}
return View(worktask);
}
[HttpPost]
公共操作结果创建(工作任务工作任务)
{
LoadUsers();
字符串assignedto=请求[“assignedto”];
var user=db.Users.First(i=>SqlFunctions.StringConvert((double)i.ID)==assignedto);
更新模型(用户);
if(ModelState.IsValid)
{
db.worktask.Add(worktask);
db.SaveChanges();
返回操作(“索引”);
}
返回视图(工作任务);
}
以及以下观点:
@using (Html.BeginForm()) {
@Html.ValidationSummary(true)
<fieldset>
<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.DesiredStartDate,"Desired Start Date")
</div>
<div class="editor-field">
@Html.EditorFor(model => model.DesiredStartDate)
@Html.ValidationMessageFor(model => model.DesiredStartDate)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.DesiredEndDate,"Desired End Date")
</div>
<div class="editor-field">
@Html.EditorFor(model => model.DesiredEndDate)
@Html.ValidationMessageFor(model => model.DesiredEndDate)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.DesiredTimeSpent,"Desired Time Spent")
</div>
<div class="editor-field">
@Html.EditorFor(model => model.DesiredTimeSpent)
@Html.ValidationMessageFor(model => model.DesiredTimeSpent)
</div>
<div class="editor-label">
@Html.LabelFor(model => model.AssignedTo,"User Assigned To")
</div>
<div class="editor-field">
@Html.DropDownListFor(i=>Model.AssignedTo,(IEnumerable<SelectListItem>)ViewBag.Users)
@Html.ValidationMessageFor(model => model.AssignedTo)
</div>
<p>
<input type="submit" value="Create" />
</p>
@使用(Html.BeginForm()){
@Html.ValidationSummary(true)
@LabelFor(model=>model.Name)
@EditorFor(model=>model.Name)
@Html.ValidationMessageFor(model=>model.Name)
@LabelFor(model=>model.DesiredStartDate,“期望的开始日期”)
@EditorFor(model=>model.DesiredStartDate)
@Html.ValidationMessageFor(model=>model.DesiredStartDate)
@LabelFor(model=>model.DesiredEndDate,“期望的结束日期”)
@EditorFor(model=>model.desiredDate)
@Html.ValidationMessageFor(model=>model.DesiredEndDate)
@Html.LabelFor(model=>model.desiredTimeWasted,“所花费的所需时间”)
@Html.EditorFor(model=>model.desiredTime)
@Html.ValidationMessageFor(model=>model.desiredTime)
@LabelFor(model=>model.AssignedTo,“用户分配到”)
@(i=>Model.AssignedTo,(IEnumerable)ViewBag.Users)
@Html.ValidationMessageFor(model=>model.AssignedTo)
我没有尝试绑定嵌套的用户对象,而是基于刚刚具有用户ID的ViewModel创建了表单和控制器。然后我假设如果ViewModel验证正确,那么我可以继续并持久化WorkTask和嵌套的用户对象