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[英]ASP.NET MVC3 Automapper Viewmodel/Model View validation
[英]ASP .Net MVC Model - ViewModel - View
我在視圖中使用模型中的屬性時遇到問題。 我的模型:
namespace App.Data.Models
{
public class Employee
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
public class Project
{
public ProjectType ProjectType { get; set; }
public bool isSelected { get; set; }
}
}
namespace App.Data.Models
{
public enum ProjectType
{
Project1,
Project2,
Project3,
Project4,
}
}
namespace App.Data.Models
{
public class EmployeeViewModel
{
public Employee Employee { get; set; }
public List<Project> Project { get; set; }
}
}
我的觀點: 4. Create.cshtml - 在創建視圖中我無法驗證@Html.ValidationMessageFor - 當我注釋掉用於項目的第三組時 - 消息顯示。 但是,如果該組留下來,我就會出錯。
@model App.Data.Models.EmployeeViewModel
@using App.Data.Models;
@{
ViewBag.Title = "Create";
}
@using (Html.BeginForm())
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.Employee.FirstName, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Employee.FirstName, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Employee.FirstName, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Employee.LastName, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Employee.LastName, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Employee.LastName, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Project, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@for (int i = 0; i < Model.Project.Count; i++)
{<div class="col-md-10">
@Html.CheckBoxFor(m => m.Project[i].isSelected)
@Html.DisplayFor(m => m.Project[i].ProjectType)
</div>
}
</div>
@Html.ValidationMessageFor(model => model.Project, "", new { @class = "text-danger" })
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" value="Create" class="btn btn-default" />
</div>
</div>
</div>
}
<div>
@Html.ActionLink("Back to List", "Index")
</div>
@model App.Data.Models.EmployeeViewModel
@{
ViewBag.Title = "Details";
}
<h2>@Model.Employee.FirstName @Model.Employee.LastName</h2>
<div>
<h4>Employee</h4>
<hr />
<dl class="dl-horizontal">
<dt>
@Html.DisplayNameFor(model => model.Employee.FirstName)
</dt>
<dd>
@Html.DisplayFor(model => model.Employee.FirstName)
</dd>
<dt>
@Html.DisplayNameFor(model => model.Employee.LastName)
</dt>
<dd>
@Html.DisplayFor(model => model.Employee.LastName)
</dd>
<dt>
@Html.DisplayNameFor(model => model.Project)// Here I don't know how to get to the projects which were checked in create view
</dt>
<dd>
@Html.DisplayFor(model => model.Project)
</dd>
</dl>
</div>
<p>
@Html.ActionLink("Edit", "Edit", new { id = Model.Employee.Id }) |//This line also doesn't work
@Html.ActionLink("Back to List", "Index")
</p>
我認為我們可以從用另一個 Project db 表替換您的枚舉和您的項目開始。 創建一個新的 class:
public class Project
{
[Key]
public int Id {get; set;}
public string Name {get; set;}
public string Description{get; set;}
}
您還需要 ProjectViewModel class。 它將用於創建您的復選框列表。
public class ProjectViewModel
{
public int ProjectId {get; set;}
public string ProjectName {get; set;}
public bool IsSelected {get; set;}
}
您的 EmployeeViewModel class 將如下所示:
public class EmployeeViewModel
{
public Employee Employee { get; set; }
public ProjectViewModel[] ProjectViewModels { get; set; }
}
var employeeViewModel= new EmployeeViewModel {
Employee=new Employee(),
ProjectViewModels=dbContext.Projects.Select (p=>
new ProjectViewModel{Id=p.Id, Name=p.Name} ).ToArray();
}
而您的員工 class 是這樣的:
public class Employee
{
[Key]
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public virtual ICollection<Project> Projects {get; set;}
}
由於員工有幾個項目,您需要第三張表:
public class EmployeeProject
{
[Key]
public int Id { get; set; }
[ForeignKey]
public int EmployeeId { get; set; }
[ForeignKey]
public int ProjectId { get; set; }
}
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